Research Topics
Species | Martin O LeachSummaryAffiliation: Institute of Cancer Research Country: UK Publications
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Publications
Imaging vascular function for early stage clinical trials using dynamic contrast-enhanced magnetic resonance imagingM O Leach
Cancer Research UK and EPSRC Cancer Imaging Centre, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, SM2, 5PT, UK
Eur Radiol 22:1451-64. 2012....
Assessing the usefulness of a novel MRI-based breast density estimation algorithm in a cohort of women at high genetic risk of breast cancer: the UK MARIBS studyDeborah J Thompson
Cancer Research UK Genetic Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Worts Causeway, Cambridge, CB1 8RN, UK
Breast Cancer Res 11:R80. 2009....
Image fusion for dynamic contrast enhanced magnetic resonance imagingThorsten Twellmann
Applied Neuroinformatics Group, Faculty of Technology, University of Bielefeld, Germany
Biomed Eng Online 3:35. 2004..Even though these techniques provide new information, integrating and evaluating the much wider range of information is a challenging task for the human observer. This task may be assisted with the use of image fusion algorithms...
The assessment of antiangiogenic and antivascular therapies in early-stage clinical trials using magnetic resonance imaging: issues and recommendationsM O Leach
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Royal Marsden Hospital, Sutton, Surrey, UK
Br J Cancer 92:1599-610. 2005..This publication reports the outcome of a workshop that considered the methodology and design of magnetic resonance studies, recommending how this new tool might best be used...
Breast cancer screening in women at high risk using MRIMartin O Leach
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, UK
NMR Biomed 22:17-27. 2009..Recommendations for screening women at high risk of breast cancer published by the American Cancer Society and from the National Institute for Health and Clinical Excellence (NICE) in the UK are summarised...
Screening with magnetic resonance imaging and mammography of a UK population at high familial risk of breast cancer: a prospective multicentre cohort study (MARIBS)M O Leach
MARIBS Study Office, Section of Magnetic Resonance, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey SM2 5PT, UK
Lancet 365:1769-78. 2005..Our aim was, therefore, to compare contrast enhanced magnetic resonance imaging (CE MRI) with mammography for screening...
Histone deacetylase inhibition increases levels of choline kinase α and phosphocholine facilitating noninvasive imaging in human cancersMounia Beloueche-Babari
Cancer Research UK and EPSRC Cancer Imaging Centre, Division of Radiotherapy and Imaging, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom
Cancer Res 72:990-1000. 2012..Together, our findings provide mechanistic insights into the impact of HDAC inhibition on cancer cell metabolism and highlight PC as a candidate noninvasive imaging biomarker for monitoring the action of HDAC inhibitors...
Quantitative mapping of hepatic perfusion index using MR imaging: a potential reproducible tool for assessing tumour response to treatment with the antiangiogenic compound BIBF 1120, a potent triple angiokinase inhibitorKeiko Miyazaki
CRUK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, Royal Marsden Hospital, Downs Road, Sutton, Surrey, SM2 5PT, UK
Eur Radiol 18:1414-21. 2008..05). This pilot study demonstrates that HPI determined using quantified Gd-DTPA concentration is reproducible and may be useful for monitoring antiangiogenic treatment response of hepatic metastases...
The phosphoinositide 3-kinase inhibitor PI-103 downregulates choline kinase alpha leading to phosphocholine and total choline decrease detected by magnetic resonance spectroscopyNada M S Al-Saffar
Cancer Research UK and EPSRC Cancer Imaging Centre, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom
Cancer Res 70:5507-17. 2010..Our results show that monitoring the effects of PI3K inhibitors by MRS may provide a noninvasive PD biomarker for PI3K inhibition and potentially of tumor response during early-stage clinical trials with PI3K inhibitors...
Neuroendocrine tumor liver metastases: use of dynamic contrast-enhanced MR imaging to monitor and predict radiolabeled octreotide therapy responseKeiko Miyazaki
Institute of Cancer Research, Cancer Research UK and EPSRC Cancer Imaging Centre, Sutton, Surrey SM2 5NG, England
Radiology 263:139-48. 2012....
Whole-body diffusion-weighted MRI: tips, tricks, and pitfallsDow Mu Koh
Department of Radiology, Royal Marsden Hospital, Downs Rd, Sutton, Surrey SM25PT, UK
AJR Am J Roentgenol 199:252-62. 2012..Meticulous technique and knowledge of potential interpretive pitfalls will help to avoid mistakes and establish this modality in radiologic practice...
Exploiting tumor metabolism for non-invasive imaging of the therapeutic activity of molecularly targeted anticancer agentsMounia Beloueche-Babari
Cancer Research UK and EPSRC Centre for Cancer Imaging, Section of Magnetic Resonance, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, UK
Cell Cycle 10:2883-93. 2011..Finally, the translation of these metabolic measurements from pre-clinical models to patients will be discussed...
Noninvasive magnetic resonance spectroscopic pharmacodynamic markers of the choline kinase inhibitor MN58b in human carcinoma modelsNada M S Al-Saffar
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom
Cancer Res 66:427-34. 2006..The decrease in phosphocholine, total choline, and phosphomonoesters may have potential as noninvasive pharmacodynamic biomarkers for determining tumor response following treatment with choline kinase inhibitors...
Modulation of choline kinase activity in human cancer cells observed by dynamic 31P NMRCristina Gabellieri
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, SM2 5PT, UK
NMR Biomed 22:456-61. 2009....
Identification of biliary metabolites of ifosfamide using 31P magnetic resonance spectroscopy and mass spectrometryGeoffrey S Payne
Cancer Research UK Clinical Magnetic Resonance Research Group, Royal Marsden NHS Trust and the Institute of Cancer Research, Downs Road, Sutton, Surrey, SM25PT, UK
Cancer Chemother Pharmacol 56:409-14. 2005..In particular, the distribution of ifosfamide and its metabolites into bile may be related to oxazophosphorine-related cholecystitis reported in patients...
Identification of magnetic resonance detectable metabolic changes associated with inhibition of phosphoinositide 3-kinase signaling in human breast cancer cellsMounia Beloueche-Babari
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT, United Kingdom
Mol Cancer Ther 5:187-96. 2006..05), whereas the levels of the remaining metabolites did not change significantly. Our results indicate that PI3K inhibition in human breast cancer cells by LY294002 and wortmannin is associated with a decrease in phosphocholine levels...
Hyperpolarized (13)C magnetic resonance detection of carboxypeptidase G2 activityYann Jamin
CRUK and EPSRC Cancer Imaging Centre, Institute of Cancer Research, Royal Marsden NHS Foundation Trust, Sutton, Surrey, UK
Magn Reson Med 62:1300-4. 2009..We discuss the feasibility of translating these experiments to generate metabolic images of CPG2 activity in vivo...
Optimizing functional parameter accuracy for breath-hold DCE-MRI of liver tumoursMatthew R Orton
Cancer Research UK Clinical MR Research Group, Institute of Cancer Research, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 54:2197-215. 2009..The simulation results show that the protocol consisting of two images per breath-hold is to be preferred as it requires identical patient co-operation, but provides parameter estimates that have superior accuracy and precision...
Computationally efficient vascular input function models for quantitative kinetic modelling using DCE-MRIMatthew R Orton
Cancer Research UK Clinical MR Research Group, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 53:1225-39. 2008..These results were obtained from five example data sets, one of which was examined in more detail to compare the estimates obtained using the different models, and with literature values...
Quantitative assessment of the hepatic pharmacokinetics of the antimicrobial sitafloxacin in humans using in vivoF magnetic resonance spectroscopyGeoffrey S Payne
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and Royal Marsden NHS Trust, Sutton, Surrey, UK
Br J Clin Pharmacol 59:244-8. 2005..To measure hepatic concentrations of the fluorine-containing antimicrobial, sitafloxacin, using in vivo(19)F magnetic resonance spectroscopy (MRS)...
Therapeutic target metabolism observed using hyperpolarized 15N cholineCristina Gabellieri
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Royal Marsden NHS Foundation Trust, Downs Road Sutton, Surrey, SM2 5PT, United Kingdom
J Am Chem Soc 130:4598-9. 2008..4 min, providing a method to observe the action of choline kinase, an important target for novel cancer therapeutics...
Minimally invasive pharmacokinetic and pharmacodynamic technologies in hypothesis-testing clinical trials of innovative therapiesPaul Workman
Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, Sutton, Surrey, UK
J Natl Cancer Inst 98:580-98. 2006..Development, validation, and implementation of minimally invasive PK/PD methods are encouraged...
Advanced Solid Tumors Treated with Cediranib: Comparison of Dynamic Contrast-enhanced MR Imaging and CT as Markers of Vascular ActivityChristina Messiou
Cancer Research UK and EPSRC Imaging Centre and Drug Development Unit of Section of Medicine, Institute of Cancer Research and Royal Marsden Hospital, MRI Unit, Downs Road, Sutton, Surrey SM2 5PT, England Department of Radiology, Royal Marsden NHS Foundation Trust, Sutton, Surrey, England
Radiology 265:426-36. 2012..RSNA, 2012 Clinical trial registration no. NCT00748891 Supplemental material: http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.12112565/-/DC1...
Noninvasive detection of carboxypeptidase G2 activity in vivoYann Jamin
Cancer Research UK and EPRSC Cancer Imaging Centre, The Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey, UK
NMR Biomed 24:343-50. 2011..The addition of in vivo reporter probes, such as 3,5-DFBGlu, to the armamentarium of prodrugs cleaved by CPG2 affords new applications for CPG2 as a gene reporter of transgene expression...
Comparison of polarization transfer sequences for enhancement of signals in clinical 31P MRS studiesLaura Mancini
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, and Royal Marsden NHS Trust, Sutton, Surrey, UK
Magn Reson Med 50:578-88. 2003..Among the PT methods, INEPT gave the higher signal enhancement. However, T(2) losses during the long echo times (TEs) required by the weak coupling limited the resulting signals from PC...
Localized COSY and DQF-COSY 1H-MRS sequences for investigating human tibial bone marrow in vivo and initial application to patients with acute leukemiaAndrew P Prescot
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Sutton, Surrey, UK
J Magn Reson Imaging 22:541-8. 2005..CONCLUSIONS: No significant differences were observed in the spectra obtained from bone marrow using the 2D 1H-MRS sequences. A novel unsaturated lipid proton index was developed...
Conformational exchange in pimonidazole--a hypoxia markerCristina Gabellieri
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, SM2 5PT, United Kingdom, UK
Magn Reson Chem 45:621-3. 2007..By a combination of 1H, 13C, two-dimensional 1H-1H EXchange SpectroscopY (EXSY) and spectral simulation, we unambiguously attribute the conformational exchange process to flipping of the six-membered heterocyclic ring...
Bayesian estimation of pharmacokinetic parameters for DCE-MRI with a robust treatment of enhancement onset timeMatthew R Orton
Cancer Research UK Clinical MR Research Group, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 52:2393-408. 2007..A more detailed method of assessing the uncertainty of the Bayesian approach is described, and the results show that this is a more accurate description of the estimation uncertainty...
Modulation of melanoma cell phospholipid metabolism in response to heat shock protein 90 inhibitionMounia Beloueche-Babari
Cancer Research UK and EPSRC Cancer Imaging Centre, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom
Oncotarget 1:185-97. 2010..Our findings provide a basis for using metabolic changes as non-invasive indicators of Hsp90 inhibition and potentially as biomarkers of anticancer activity with Hsp90 drugs in malignant melanoma and possibly in other cancers...
Reproducibility and changes in the apparent diffusion coefficients of solid tumours treated with combretastatin A4 phosphate and bevacizumab in a two-centre phase I clinical trialDow Mu Koh
Department of Radiology, Royal Marsden Hospital, Downs Road, SM25PT Sutton, UK
Eur Radiol 19:2728-38. 2009..05). ADC measurements were highly reproducible in a two-centre clinical trial setting and appear promising for evaluating the effects of drugs that target tumour vasculature...
Preliminary dose response study of a gel dosimeter using 2-Hydroxyethyl Methacrylate (HEMA)J V Trapp
Joint Department of Physics, The Institute of Cancer Research and The Royal Marsden NHS Trust, Sutton, Surrey, UK
Australas Phys Eng Sci Med 28:172-4. 2005..The gel is shown to provide a signal to noise ratio of up to at least 35 and have a linear change in transverse relaxation rate up to 70 Gy when measured with magnetic resonance imaging...
Informatics in Radiology (infoRAD): Magnetic Resonance Imaging Workbench: analysis and visualization of dynamic contrast-enhanced MR imaging dataJames A d'Arcy
Cancer Research UK Clinical MR Research Group, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, United Kingdom SM2 5PT
Radiographics 26:621-32. 2006..MRIW is written in IDL, enabling it to be used on a variety of computer systems...
A novel technique to monitor carboxypeptidase G2 expression in suicide gene therapy using 19F magnetic resonance spectroscopyLaura Mancini
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey SM2 5PT, UK
NMR Biomed 22:561-6. 2009..The MRS conversion half-life (470 min) agreed with that measured by HPLC (500 min). This substrate is, therefore, suitable for evaluating gene delivery and expression prior to administration of the therapeutic agent...
Changes in choline metabolism as potential biomarkers of phospholipase C{gamma}1 inhibition in human prostate cancer cellsMounia Beloueche-Babari
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom
Mol Cancer Ther 8:1305-11. 2009....
Implementation and evaluation of CSI-localized J cross-polarization for detection of 31P magnetic resonance spectra in vivoLaura Mancini
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom
Magn Reson Med 54:1065-71. 2005..Such enhancement could be used to reduce the measurement times for equivalent signal-to-noise ratios. The JCP sequence is, however, slightly more sensitive than INEPT to RF field inhomogeneities, as predicted from theory...
Computed diffusion-weighted MR imaging may improve tumor detectionMatthew D Blackledge
Cancer Research UK and Engineering and Physical Sciences Research Council Cancer Imaging Centre, Institute of Cancer Research and Royal Marsden Hospital, Downs Rd, Sutton, Surrey SM2 5PT, England
Radiology 261:573-81. 2011....
Investigation of microenvironmental factors influencing the longitudinal relaxation times of drugs and other compoundsA S K Dzik-Jurasz
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Sutton, Surrey, SM2 5PT
Magn Reson Imaging 22:973-82. 2004..The relevance of the findings to in vivo studies is discussed...
In vivo hyperpolarized 129Xe NMR spectroscopy in tumorsJ Wolber
CRC Clinical Magnetic Resonance Research Group and Physics Department, The Institute of Cancer Research, The Royal Marsden NHS Trust, Button, Surrey, UK
Magn Reson Med 46:586-91. 2001..These differences are discussed in terms of xenon exchange between the carrier medium and the tissue compartments...
Early in vivo detection of metabolic response: a pilot study of 1H MR spectroscopy in extracranial lymphoma and germ cell tumoursA J Schwarz
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden Hospital, Downs Road, Sutton, Surrey SM2 5PT, UK
Br J Radiol 75:959-66. 2002..Moreover, the differential changes observed in the tCho region of the spectrum suggest that (1)H MRS could provide an early and sensitive indicator of metabolic response to chemotherapy...
Polymer gel measurement of dose homogeneity in the breast: comparing MLC intensity modulation with standard wedged deliveryP A Love
Joint Department of Physics, The Institute of Cancer Research, The Royal Marsden NHS Trust, Sutton, UK
Phys Med Biol 48:1065-74. 2003..Gel dose distributions from the multileaf modulation treatment show an improved dose uniformity in comparison to the standard treatment with a decreased volume receiving doses over 105%...
Informatics in Radiology: Development of a Research PACS for Analysis of Functional Imaging Data in Clinical Research and Clinical TrialsSimon J Doran
Cancer Research UK and EPSRC Cancer Imaging Centre, Institute of Cancer Research, 15 Cotswold Rd, Sutton SM2 5NG, England, and The Royal Marsden NHS Foundation Trust, Sutton, England
Radiographics 32:2135-50. 2012..rsna, 2012...
Magnetic resonance spectroscopy monitoring of mitogen-activated protein kinase signaling inhibitionMounia Beloueche-Babari
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
Cancer Res 65:3356-63. 2005..Thus, phosphocholine has potential as a noninvasive pharmacodynamic marker for monitoring MAPK signaling blockade...
A phase I study of SR-4554 via intravenous administration for noninvasive investigation of tumor hypoxia by magnetic resonance spectroscopy in patients with malignancyBeatrice M Seddon
Cancer Research UK Centre for Cancer Therapeutics, Institute of Cancer Research, Sutton, Surrey, United Kingdom
Clin Cancer Res 9:5101-12. 2003..CONCLUSIONS: SR-4554 has plasma pharmacokinetic and toxicity profiles suitable for use as a hypoxia probe. It can be detected in tumors by unlocalized MRS. Additional clinical studies are warranted...
Reference tissue quantification of DCE-MRI data without a contrast agent calibrationSimon Walker-Samuel
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK
Phys Med Biol 52:589-601. 2007..Both of these uncertainties are of the order of those associated with the conversion to Gd-DTPA concentration, according to literature estimates...
Inversion recovery measurements in the presence of radiation damping and implications for evaluating contrast agents in magnetic resonanceThomas R Eykyn
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, Royal Marsden Foundation NHS, Downs Road Sutton, Surrey, SM2 5PT, UK
Phys Med Biol 50:N371-6. 2005....
A complete distortion correction for MR images: II. Rectification of static-field inhomogeneities by similarity-based profile mappingStefan A Reinsberg
Cancer Research UK Clinical MR Research Group, Royal Marsden NHS Trust Institute of Cancer Research, Downs Rd, Sutton SM2 5PT, UK
Phys Med Biol 50:2651-61. 2005..Image quality is preserved to a degree not reported previously...
Noninvasive magnetic resonance spectroscopic pharmacodynamic markers of a novel histone deacetylase inhibitor, LAQ824, in human colon carcinoma cells and xenograftsYuen Li Chung
Cancer Research UK, Biomedical Magnetic Resonance Research Group, Department of Basic Medical Sciences, St George s University of London, London, UK
Neoplasia 10:303-13. 2008..The phosphocholine and phosphomonoester increases may have the potential to act as pharmacodynamic markers for noninvasively monitoring tumor response after treatment with LAQ824 or other HDAC inhibitors...
Colorectal hepatic metastases: quantitative measurements using single-shot echo-planar diffusion-weighted MR imagingD M Koh
Cancer Research UK Magnetic Resonance Clinical Research Group, Institute of Cancer Research, Sutton, UK
Eur Radiol 16:1898-905. 2006..However, the estimated F was found to be lower in metastases compared to liver (P = 0.03, Mann-Whitney test). Colorectal hepatic metastases were characterised by higher ADC1 and ADC2 values, but lower F values compared to liver...
Detection of colorectal hepatic metastases using MnDPDP MR imaging and diffusion-weighted imaging (DWI) alone and in combinationD M Koh
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Sutton, UK
Eur Radiol 18:903-10. 2008..There was no difference in the averaged specificity using any of the three image sets (p>0.5). Combination of MnDPDP MR imaging and DWI resulted in the highest diagnostic accuracy and can increase sensitivity without loss in specificity...
A modified polymer gel for radiotherapy dosimetry: assessment by MRI and MRSP S Murphy
Joint Department of Physics, The Institute of Cancer Research, The Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 45:3213-23. 2000..MR spectroscopy revealed that the crosslinking co-monomer is consumed more readily than the monomer, which is in agreement with previous compositional studies...
Metabolic assessment of the action of targeted cancer therapeutics using magnetic resonance spectroscopyM Beloueche-Babari
Section of Magnetic Resonance, Cancer Research UK and EPSRC Cancer Imaging Centre, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Surrey SM2 5PT, UK
Br J Cancer 102:1-7. 2010..We describe the MRS-detectable PD biomarkers resulting from the action of targeted therapeutics, and discuss their biological significance and future translation into clinical use...
Reproducibility of reference tissue quantification of dynamic contrast-enhanced data: comparison with a fixed vascular input functionS Walker-Samuel
Cancer Research UK Clinical Magnetic Resonance Imaging Research Group, Institute of Cancer Research, Royal Marsden NHS Foundation Trust, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 52:75-89. 2007..This study therefore provides an indirect validation of the methodology...
Evaluation of response to treatment using DCE-MRI: the relationship between initial area under the gadolinium curve (IAUGC) and quantitative pharmacokinetic analysisS Walker-Samuel
Cancer Research UK Clinical Magnetic Resonance Imaging Research Group, Royal Marsden and NHS Foundation Trust and Institute of Cancer Research, Belmont, Surrey SM2 5PT, UK
Phys Med Biol 51:3593-602. 2006..Furthermore, it is demonstrated that the range over which IAUGC is taken and the nature of the vascular input function do not significantly affect this relationship...
Pre-processed image reconstruction applied to breast and brain MR imagingA Degenhard
CRC Clinical MR Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Sutton, Surrey, UK
Physiol Meas 22:589-604. 2001..The developed algorithm requires a full Fourier space acquisition of a pre-contrast or baseline image prior to the reconstruction procedure of the time series partial Fourier data...
The UK national study of magnetic resonance imaging as a method of screening for breast cancer (MARIBS)M O Leach
Section of Magnetic Resonance, The Institute of Cancer Research and The Royal Marsden Hospital, Downs Road, Sutton, Surrey, SM2 5PT, UK
J Exp Clin Cancer Res 21:107-14. 2002..15 cancers have been detected to date, from a total of 1236 screening measurements. This event rate and the tumour grades reported are compared with recent reports from other studies in women at high risk of breast cancer...
Human rectal adenocarcinoma: demonstration of 1H-MR spectra in vivo at 1.5 TA S K Dzik-Jurasz
CRC Clinical Magnetic Resonance Research Group, Institute of Cancer Research and the Royal Marsden NHS Trust, Surrey, UK
Magn Reson Med 47:809-11. 2002..Localized proton spectra were acquired at short (20 ms) and long (135 ms) echo times (TEs) using a single-voxel technique. The most commonly detected metabolites were choline and lipid...
A model to assess SAR for surface coil magnetic resonance spectroscopy measurementsT Prock
CRC Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 47:1805-17. 2002..A comparative study shows that up to 100% more energy may be applied to surface coils if SAR values are determined for 10 g tissue masses rather than 1 g tissue masses...
Apoptosis is associated with triacylglycerol accumulation in Jurkat T-cellsN M S Al-Saffar
Cancer Research UK Clinical Magnetic Resonance Research Group, Royal Marsden NHS Trust, Downs Road, Sutton Surrey SM2 5PT, UK
Br J Cancer 86:963-70. 2002..This is reflected in an increase in the methylene/methyl ratio which could be detected by magnetic resonance spectroscopy...
Applications of sliding window reconstruction with cartesian sampling for dynamic contrast enhanced MRIJ A d'Arcy
CRC Clinical MR Research Group, Institute of Cancer Research and the Royal Marsden NHS Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
NMR Biomed 15:174-83. 2002..It is implemented here as a dual gradient echo sequence providing simultaneous T(1)- and T(2)*-weighted images with a time resolution of 1.1 s...
Surface-coil polarization transfer for monitoring tissue metabolism in vivoG S Payne
CRC Clinical Magnetic Resonance Research Group, Institute of Cancer Research, The Royal Marsden NHS Trust, Sutton, Surrey, UK
Magn Reson Med 43:510-6. 2000..Finally, in vivo data are presented from the liver of a normal volunteer in which the signals from the phosphodiester peaks are substantially enhanced...
Imaging biochemistry: applications to breast cancerS M Ronen
Institute of Cancer Research, Sutton, Surrey, UK
Breast Cancer Res 3:36-40. 2001..Experiments in model systems aimed at understanding the underlying biochemical processes are presented, as well as data indicating the usefulness of MRS in monitoring the uptake and metabolism of some chemotherapeutic agents...
Application of magnetic resonance imaging to angiogenesis in breast cancerM O Leach
CRC Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Sutton, Surrey, UK
Breast Cancer Res 3:22-7. 2001..These studies show correlation between in vivo dynamic contrast measurements and in vitro histopathology. Dynamic contrast-enhanced MRI is also being applied to assessment of the response of breast tumours to treatment...
In vivo multiple spin echoesA Bifone
CRC Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, Sutton, SM2 5PT, United Kingdom
J Magn Reson 135:30-6. 1998..The dependence of the signal amplitudes on the experimental parameters is compared with the theory. The sources of contrast for MRI and the perspectives for medical applications are discussed...
Numerical evaluation of shaped surface coil sensitivity at 63 MHzT Prock
CRC Clinical MR Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 46:1753-65. 2001..Simulations are validated experimentally using both B1 and SNR mapping techniques. A comparison between the axial SNR of circular and square coils demonstrated equal SNR distributions of coils with equivalent area at depth...
SAR and tissue heating with a clinical (31)P MRS protocol using surface coils, adiabatic pulses, and proton-decouplingA J Schwarz
CRC Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden Hospital, Sutton, Surrey, UK
Magn Reson Med 44:692-700. 2000..The heating rate and maximum temperature in the gel, at positions guided by the simulations, were within guideline values for both extremities and trunk and in reasonable agreement with that predicted...
The quantitative 19F-imaging of albumin at 1.5 T: a potential in-vivo toolA S Dzik-Jurasz
The CRC Clinical Magnetic Resonance Research Group, SM2 5PT, Sutton, UK
Magn Reson Imaging 19:839-44. 2001..15). The potentially interfering effect of paramagnetic species on T1 relaxation times was also investigated. Relaxivity data show that albumin concentration measurements should be performed prior to any contrast agent administration...
Vascular occlusion using focused ultrasound surgery for use in fetal medicineI H Rivens
Joint Department of Physics, The Royal Marsden NHS Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
Eur J Ultrasound 9:89-97. 1999..In the work described in this paper, the application of FUS is extended to investigate the potential to induce vascular occlusion, with the aim of applying the technique to problems in fetal medicine and oncology...
An algorithm for the optimum combination of data from arbitrary magnetic resonance phased array probesT Prock
CRC Clinical MR Research Group, The Institute of Cancer Research, Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 47:N39-46. 2002..5 T (Dzik-Jurasz A S K, Murphy P S, George M, Prock T, Collins D J, Swift I and Leach M O 2001 Magn. Reson. Med. at press), showing improvements of combined spectral SNR of up to 34% over the maximum SNR from a single element...
Probing tumor microvascularity by measurement, analysis and display of contrast agent uptake kineticsG J Parker
Cancer Research Campaign Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Sutton, Surrey, United Kingdom
J Magn Reson Imaging 7:564-74. 1997..Quantification of permeability and leakage space provides a method for comparing physiology in patients between visits or for intersite comparisons...
Introduction to in vivo MRS of cancer: new perspectives and open problemsM O Leach
CRC Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden NHS Trust, Sutton, Surrey, UK
Anticancer Res 16:1503-14. 1996..In this paper, recent reports of NMR spectroscopy in cancer are reviewed, together with the requirements for tumour measurements...
Sliding window dual gradient echo (SW-dGRE): T1 and proton resonance frequency (PRF) calibration for temperature imaging in polyacrylamide gelJ T Ong
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden Hospital, Downs Road, Sutton SM2 5PT, Surrey, UK
Phys Med Biol 48:1917-31. 2003..The advantage of this sequence is that the temperature obtained from the magnitude data can be confirmed independently using the phase data and vice versa. Thus the sequence can essentially be crosschecked...
Measurements of human breast cancer using magnetic resonance spectroscopy: a review of clinical measurements and a report of localized 31P measurements of response to treatmentM O Leach
CRC Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden NHS Trust, Sutton, Surrey, UK
NMR Biomed 11:314-40. 1998....
Evaluation of 31P high-resolution magic angle spinning of intact tissue samplesG S Payne
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
NMR Biomed 19:593-8. 2006....
Proton spectroscopic imaging of polyacrylamide gel dosimeters for absolute radiation dosimetryP S Murphy
Joint Department of Physics, The Institute of Cancer Research, The Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 45:835-45. 2000....
Initial measurements of ifosfamide and cyclophosphamide in patients using (31)P MRS: pulse-and-acquire, decoupling, and polarization transferG S Payne
CRC Clinical Magnetic Resonance Research Group, NHS Trust, Downs Road, Sutton, Surrey, UK
Magn Reson Med 44:180-4. 2000..Factors affecting signal enhancement in vivo are evaluated. Magn Reson Med 44:180-184, 2000...
The use of gel dosimetry for verification of electron and photon treatment plans in carcinoma of the scalpJ V Trapp
Joint Department of Physics, The Institute of Cancer Research and The Royal Marsden NHS Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 49:1625-35. 2004....
Consecutive projections onto convex setsA Degenhard
CRC Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 47:N61-6. 2002..The proposed method is of value for many finite sampling imaging problems including, in particular, fast-scan magnetic resonance imaging applications...
Dose resolution in gel dosimetry: effect of uncertainty in the calibration functionJ V Trapp
Joint Department of Physics, The Institute of Cancer Research, Royal Marsden Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 49:N139-46. 2004..In this note we examine how the goodness of fit of the calibration function affects DdeltaP and show that its inclusion in the calculation of DdeltaP is essential to avoid overestimating the performance of the gel...
The reproducibility of polyacrylamide gel dosimetry applied to stereotactic conformal radiotherapyV P Cosgrove
Joint Department of Physics, The Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 45:1195-210. 2000....
Assessing changes in tumour vascular function using dynamic contrast-enhanced magnetic resonance imagingCarmel Hayes
CRC Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Downs Road, Sutton SM2 5PT, UK
NMR Biomed 15:154-63. 2002..Thus, for higher pre-treatment K(trans) values, a greater decrease was observed. Greater changes were observed in the upper extremes of the K(trans) histogram than in the median values after one course of treatment...
Computerized detection of breast lesions in multi-centre and multi-instrument DCE-MR data using 3D principal component maps and template matchingGokhan Ertas
Cancer Research UK and EPSRC Cancer Imaging Centre, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 56:7795-811. 2011..02/lesion, 1.17/case and 0.08/slice, comparing favourably with previous studies. This approach may facilitate detection of lesions in multi-centre and multi-instrument dynamic contrast-enhanced breast MR data...
Human gallbladder bile: noninvasive investigation in vivo with single-voxel 1H MR spectroscopyAndrew P Prescot
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Surrey, England, UK
Radiology 229:587-92. 2003..8) were within the expected range of levels in human bile. Findings in this preliminary investigation indicate that human gallbladder bile can be qualitatively and quantitatively studied noninvasively with 1H MR spectroscopy...
Measurements of occupational exposure to switched gradient and spatially-varying magnetic fields in areas adjacent to 1.5 T clinical MRI systemsSophie F Riches
Cancer Research UK Clinical Magnetic Resonance Research Group, Royal Marsden NHS Trust and Institute of Cancer Research, Surrey, UK
J Magn Reson Imaging 26:1346-52. 2007..5 T magnetic resonance imaging (MRI) scanners during image acquisition and when moving in the spatially-varying static magnetic field is compliant with European Union (EU) Directive 2004/40/EC (the Directive)...
Phase I trial of a selective c-MET inhibitor ARQ 197 incorporating proof of mechanism pharmacodynamic studiesTimothy A Yap
Royal Marsden National Health Service Foundation Trust, The Institute of Cancer Research, Sutton, Surrey, UK
J Clin Oncol 29:1271-9. 2011..A phase I trial of ARQ 197 was conducted to assess safety, tolerability, and target inhibition, including intratumoral c-MET signaling, apoptosis, and angiogenesis...
Modulating the relaxivity of hyperpolarized substrates with gadolinium contrast agentsCristina Gabellieri
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, UK
Contrast Media Mol Imaging 4:143-7. 2009....
Magnetic resonance detects metabolic changes associated with chemotherapy-induced apoptosisS M Ronen
Cancer Research Campaign, Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Sutton, Surrey, UK
Br J Cancer 80:1035-41. 1999..The 31P MR spectrum of tumours responding to chemotherapy could be modulated by similar effects...
Dynamic contrast-enhanced MRI for prostate cancer localizationA S N Jackson
Academic Department of Radiotherapy and Oncology, Royal Marsden NHS Foundation Trust and Institute of Cancer Research, Sutton, UK
Br J Radiol 82:148-56. 2009..006) and similarly specific (85% vs 81%; p = 0.593). The superior sensitivity of DCE-MRI compared with T2W images, together with its high specificity, is arguably sufficient for its use in guiding radiotherapy boosts in prostate cancer...
1H decoupling for in vivo (19)F MRS studies using the time-share modulation method on a clinical 1.5 T NMR systemB S Li
CRC Clinical Magnetic Resonance Research Group, Institute of Cancer Research and the Royal Marsden NHS Trust, Surrey, UK
Magn Reson Med 44:5-9. 2000..This method has been demonstrated in vivo in patients receiving 5-fluorouracil chemotherapy. Magn Reson Med 44:5-9, 2000...
A comparison of in vivo and in vitro 31P NMR spectra from human breast tumours: variations in phospholipid metabolismT A Smith
Department of Nuclear Medicine, Royal Marsden Hospital, Sutton, Surrey, UK
Br J Cancer 63:514-6. 1991..We believe this to be a consequence of phospholipid, which would not appear in the aqueous extract, contributing to the phosphodiester peak in vivo...
The effects of paramagnetic contrast agents on metabolite protons in aqueous solutionPhilip S Murphy
CRC Clinical MR Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Sutton, Surrey, UK
Phys Med Biol 47:N53-9. 2002..The maximum potential influence of the contrast agents on in vivo metabolite signals was calculated using the measured relaxivities...
Ifosfamide pharmacokinetics and hepatobiliary uptake in vivo investigated using single- and double-resonance 31P MRSLaura Mancini
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research, Royal Marsden NHS Trust, Sutton, UK
Magn Reson Med 50:249-55. 2003..Other peaks observed in bile are tentatively assigned to carboxy-ifosfamide and dechloroethyl-ifosfamide. Overall, (1)H-decoupled (31)P MRS has proved to be a useful tool for investigating the metabolism of ifosfamide in vivo...
Predicting response of colorectal hepatic metastasis: value of pretreatment apparent diffusion coefficientsDow Mu Koh
Academic Department of Radiology, Royal Marsden Hospital, Downs Rd, Sutton, Surrey, United Kingdom, SM2 5PT
AJR Am J Roentgenol 188:1001-8. 2007....
Potential role of magnetic resonance spectroscopy in assessment of tumour response in childhood cancerS J Vaidya
Department of Paediatric Oncology, Institute of Cancer Research and the Royal Marsden NHS Trust, Sutton, Surrey, UK
Eur J Cancer 39:728-35. 2003..This review suggests that several markers and ratios are emerging as potential prognostic markers, but larger prospective studies are needed before translating this into clinical practice...
Reproducibility of quantitative dynamic MRI of normal human tissuesAnwar R Padhani
CRC Clinical Magnetic Resonance Research Group, Institute of Cancer Research and the Royal Marsden NHS Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
NMR Biomed 15:143-53. 2002..Reproducibility studies of normal and pathological tissues should be incorporated into clinical research protocols that measure treatment effects by DCE-MRI techniques...
Radiotherapy treatment planning of prostate cancer using magnetic resonance imaging aloneYoung K Lee
Joint Department of Physics, Institute of Cancer Research and Royal Marsden NHS Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
Radiother Oncol 66:203-16. 2003..MR treatment planning was demonstrated using a large bandwidth sequence and bulk-assigned images. The development of higher quality, low distortion MR sequence will allow regular practice of this technique...
Monitoring temozolomide treatment of low-grade glioma with proton magnetic resonance spectroscopyP S Murphy
Cancer Research UK Clinical Magnetic Resonance Research Group, The Institute of Cancer Research and The Royal Marsden NHS Trust, Sutton, Surrey SM2 5PT, UK
Br J Cancer 90:781-6. 2004..035) and 3-month scan (P=0.021). The reduction in the tumour choline/water signal paralleled tumour volume change and may reflect the therapeutic effect of temozolomide...
The phosphocholine and glycerophosphocholine content of an oestrogen-sensitive rat mammary tumour correlates strongly with growth rateT A Smith
Department of Nuclear Medicine, Royal Marsden Hospital, Surrey, UK
Br J Cancer 64:821-6. 1991..The concentration of phosphoethanolamine did not correlate with either of these measures of proliferation rate. The concentration of glycerophosphorylethanolamine showed a weak negative correlation with the number of cells in S-phase...
Measurement of the three-dimensional distribution of radiation dose in grid therapyJ V Trapp
Joint Department of Physics, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
Phys Med Biol 49:N317-23. 2004..It is shown that the radiation dose is attenuated more rapidly with depth in a grid field than an open field, and that even shielded regions receive approximately 25% of the dose to the unshielded areas...
Parametric mapping of the hepatic perfusion index with gadolinium-enhanced volumetric MRIM J White
Cancer Research UK Clinical Magnetic Resonance Research Group, Royal Marsden NHS Trust and Institute of Cancer Research, Downs Road, Sutton, Surrey SM2 5PT, UK
Br J Radiol 80:113-20. 2007..This method for MR voxel-based parametric mapping of HPI has the potential to demonstrate regional variations in perfusion at the segmental and subsegmental level...
A phase II clinical and pharmacokinetic study of Lonidamine in patients with advanced breast cancerJ L Mansi
Breast Unit, Royal Marsden Hospital, Sutton, Surrey
Br J Cancer 64:593-7. 1991..Lonidamine appears to be active against advanced breast cancer and its low toxicity would allow combination studies with chemotherapy...
Magnetic resonance spectroscopy (MRS) in the investigation of cancer at The Royal Marsden Hospital and The Institute of Cancer ResearchM O Leach
Cancer Research UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5PT, UK
Phys Med Biol 51:R61-82. 2006..Applications using particular nuclei will then be described and related to other experimental work where appropriate. Contributions to the development of MRS that have been published in Physics in Medicine and Biology will be discussed...
