Steve Halligan

Summary

Affiliation: University College London
Country: UK

Publications

  1. ncbi request reprint CT colonography in the detection of colorectal polyps and cancer: systematic review, meta-analysis, and proposed minimum data set for study level reporting
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, Euston Rd, London, NW1 2BU, England
    Radiology 237:893-904. 2005
  2. pmc CT colonography for investigation of patients with symptoms potentially suggestive of colorectal cancer: a review of the UK SIGGAR trials
    S Halligan
    Centre for Medical Imaging, University College London, London, UK
    Br J Radiol 86:20130137. 2013
  3. doi request reprint Computed tomographic colonography versus barium enema for diagnosis of colorectal cancer or large polyps in symptomatic patients (SIGGAR): a multicentre randomised trial
    Steve Halligan
    University College London, Centre for Medical Imaging, Podium Level 2, 235 Euston Road, London NW1 2BU, UK
    Lancet 381:1185-93. 2013
  4. ncbi request reprint Computed tomographic colonography: assessment of radiologist performance with and without computer-aided detection
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, London, England
    Gastroenterology 131:1690-9. 2006
  5. doi request reprint Incremental benefit of computer-aided detection when used as a second and concurrent reader of CT colonographic data: multiobserver study
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, Podium Level 2, 235 Euston Road, London NW1 2BU, England
    Radiology 258:469-76. 2011
  6. ncbi request reprint Evidence-based practice in radiology: steps 3 and 4--appraise and apply systematic reviews and meta-analyses
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, Podium Level 2, 235 Euston Rd, London NW1 2BU, England
    Radiology 243:13-27. 2007
  7. ncbi request reprint Computer-assisted detection for CT colonography: external validation
    S Halligan
    Department of Specialist Radiology, University College Hospital, London, UK
    Clin Radiol 61:758-63; discussion 764-5. 2006
  8. ncbi request reprint CT colonography: results and limitations
    Steve Halligan
    Department of Specialist Radiology, Podium Level 2, University College London Hospitals NHS Trust, 235 Euston Road, London, United Kingdom
    Eur J Radiol 61:400-8. 2007
  9. ncbi request reprint Polyp measurement and size categorisation by CT colonography: effect of observer experience in a multi-centre setting
    David Burling
    Intestinal Imaging Centre, St Marks Hospital, London, UK
    Eur Radiol 16:1737-44. 2006
  10. doi request reprint Computed tomographic colonography versus colonoscopy for investigation of patients with symptoms suggestive of colorectal cancer (SIGGAR): a multicentre randomised trial
    Wendy Atkin
    Cancer Screening and Prevention Research Group, Imperial College London, St Mary s Hospital, Norfolk Place, London W2 1PG, UK
    Lancet 381:1194-202. 2013

Collaborators

Detail Information

Publications79

  1. ncbi request reprint CT colonography in the detection of colorectal polyps and cancer: systematic review, meta-analysis, and proposed minimum data set for study level reporting
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, Euston Rd, London, NW1 2BU, England
    Radiology 237:893-904. 2005
    ..To assess the methodologic quality of available data in published reports of computed tomographic (CT) colonography by performing systematic review and meta-analysis...
  2. pmc CT colonography for investigation of patients with symptoms potentially suggestive of colorectal cancer: a review of the UK SIGGAR trials
    S Halligan
    Centre for Medical Imaging, University College London, London, UK
    Br J Radiol 86:20130137. 2013
    ..The author concludes that BE should be replaced by CTC immediately and that CTC is a sensitive, acceptable and equally cost-effective alternative to colonoscopy in patients in whom colonoscopy is contraindicated or undesirable...
  3. doi request reprint Computed tomographic colonography versus barium enema for diagnosis of colorectal cancer or large polyps in symptomatic patients (SIGGAR): a multicentre randomised trial
    Steve Halligan
    University College London, Centre for Medical Imaging, Podium Level 2, 235 Euston Road, London NW1 2BU, UK
    Lancet 381:1185-93. 2013
    ..Computed tomographic colonography (CTC) might be a more sensitive and acceptable alternative. We aimed to compare CTC and BE for diagnosis of colorectal cancer or large polyps in symptomatic patients in clinical practice...
  4. ncbi request reprint Computed tomographic colonography: assessment of radiologist performance with and without computer-aided detection
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, London, England
    Gastroenterology 131:1690-9. 2006
    ..However, the unavoidable interaction between CAD and the reader has not been addressed...
  5. doi request reprint Incremental benefit of computer-aided detection when used as a second and concurrent reader of CT colonographic data: multiobserver study
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, Podium Level 2, 235 Euston Road, London NW1 2BU, England
    Radiology 258:469-76. 2011
    ..To quantify the changes in reader performance levels, if any, during interpretation of computed tomographic (CT) colonographic data when a computer-aided detection (CAD) system is used as a second or concurrent reader...
  6. ncbi request reprint Evidence-based practice in radiology: steps 3 and 4--appraise and apply systematic reviews and meta-analyses
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, Podium Level 2, 235 Euston Rd, London NW1 2BU, England
    Radiology 243:13-27. 2007
    ..They also explain how systematic review can help guide methodologic development for future research...
  7. ncbi request reprint Computer-assisted detection for CT colonography: external validation
    S Halligan
    Department of Specialist Radiology, University College Hospital, London, UK
    Clin Radiol 61:758-63; discussion 764-5. 2006
    ..To externally validate a computer-assisted detection (CAD) system for computed tomography (CT) colonography, using data from a single centre uninvolved with the software development...
  8. ncbi request reprint CT colonography: results and limitations
    Steve Halligan
    Department of Specialist Radiology, Podium Level 2, University College London Hospitals NHS Trust, 235 Euston Road, London, United Kingdom
    Eur J Radiol 61:400-8. 2007
    ..Whether offering CT colonography as an alternative to competing strategies will genuinely enhance compliance also needs further and more detailed attention...
  9. ncbi request reprint Polyp measurement and size categorisation by CT colonography: effect of observer experience in a multi-centre setting
    David Burling
    Intestinal Imaging Centre, St Marks Hospital, London, UK
    Eur Radiol 16:1737-44. 2006
    ..e. large polyps misclassified as medium). Caution should be exercised for polyps whose colonographic diameter is below but close to the 1-cm boundary threshold in order to avoid potential miscategorisation of advanced adenomas...
  10. doi request reprint Computed tomographic colonography versus colonoscopy for investigation of patients with symptoms suggestive of colorectal cancer (SIGGAR): a multicentre randomised trial
    Wendy Atkin
    Cancer Screening and Prevention Research Group, Imperial College London, St Mary s Hospital, Norfolk Place, London W2 1PG, UK
    Lancet 381:1194-202. 2013
    ..We aimed to compare rates of additional colonic investigation after CTC or colonoscopy for detection of colorectal cancer or large (≥10 mm) polyps in symptomatic patients in clinical practice...
  11. doi request reprint CT colonography: external clinical validation of an algorithm for computer-assisted prone and supine registration
    Darren J Boone
    Centre for Medical Imaging and Centre for Medical Image Computing, University College London, Podium Level 2, University College Hospital, 235 Euston Rd, London NW1 2BU, England
    Radiology 268:752-60. 2013
    ..To perform external validation of a computer-assisted registration algorithm for prone and supine computed tomographic (CT) colonography and to compare the results with those of an existing centerline method...
  12. pmc CT colonography: optimisation, diagnostic performance and patient acceptability of reduced-laxative regimens using barium-based faecal tagging
    Stuart A Taylor
    Department of Specialist Radiology, University College Hospital, Euston Road, London, UK
    Eur Radiol 18:32-42. 2008
    ..Reduced preparation was tolerated better than full endoscopic preparation by 61%. Reduced-laxative CTC with three doses of 20 ml 40% barium sulphate is as effective as more complex regimens, retaining adequate diagnostic accuracy...
  13. ncbi request reprint Automatic prone to supine haustral fold matching in CT colonography using a Markov random field model
    Thomas Hampshire
    Centre for Medical Image Computing, University College London, London, UK
    Med Image Comput Comput Assist Interv 14:508-15. 2011
    ..1% and 88.5% with and without local colonic collapse. Moreover, it improves an existing surface-based registration algorithm, decreasing mean registration error from 9.7mm to 7.7mm in cases exhibiting collapse...
  14. doi request reprint Patient acceptability of CT colonography compared with double contrast barium enema: results from a multicentre randomised controlled trial of symptomatic patients
    Christian von Wagner
    Department of Epidemiology and Public Health, University College London, London, UK
    Eur Radiol 21:2046-55. 2011
    ..To determine patient acceptability of barium enema (BE) or CT colonography (CTC)...
  15. doi request reprint Patient acceptability and psychologic consequences of CT colonography compared with those of colonoscopy: results from a multicenter randomized controlled trial of symptomatic patients
    Christian von Wagner
    Department of Epidemiology and Public Health, University College London, University College Hospital, Level 2, Podium, 235 Euston Road, London NW1 2BU, England
    Radiology 263:723-31. 2012
    ..To use a randomized design to compare patients' short- and longer-term experiences after computed tomographic (CT) colonography or colonoscopy...
  16. doi request reprint Mural Crohn disease: correlation of dynamic contrast-enhanced MR imaging findings with angiogenesis and inflammation at histologic examination--pilot study
    Stuart A Taylor
    Department of Specialist Radiology, University College London Hospitals National Health Service Foundation Trust, 235 Euston Road, London NW12BU, England
    Radiology 251:369-79. 2009
    ..To determine mural perfusion dynamics in Crohn disease by using dynamic contrast material-enhanced magnetic resonance (MR) imaging and to correlate these with histopathologic markers of inflammation and angiogenesis...
  17. doi request reprint Influence of computer-aided detection false-positives on reader performance and diagnostic confidence for CT colonography
    Stuart A Taylor
    Department of Specialist Imaging, University College Hospital, London, United Kingdom
    AJR Am J Roentgenol 192:1682-9. 2009
    ..The objective of our study was to investigate whether an increasing number of computer-aided detection (CAD) false-positives decreases reader sensitivity, specificity, and confidence for nonexpert readers of CT colonography (CTC)...
  18. ncbi request reprint Computer assisted detection software for CT colonography: effect of sphericity filter on performance characteristics for patients with and without fecal tagging
    Jamshid Dehmeshki
    Medicsight PLC, Berkeley Sq, London, UK
    Eur Radiol 17:662-8. 2007
    ..8% for polyps 6 mm or more when used at a sphericity setting of 0.3. Higher sphericity settings increased specificity while reducing sensitivity. The bowel preparation used significantly impacts on specificity...
  19. doi request reprint Quantified terminal ileal motility during MR enterography as a potential biomarker of Crohn's disease activity: a preliminary study
    Alex Menys
    Centre for Medical Imaging, University College London, London, UK
    Eur Radiol 22:2494-501. 2012
    ..To compare quantified terminal ileal (TI) motility during MR enterography (MRE) with histopathological severity of acute inflammation in Crohn's disease...
  20. doi request reprint Assessment of the metabolic flow phenotype of primary colorectal cancer: correlations with microvessel density are influenced by the histological scoring method
    Vicky Goh
    Division of Imaging Sciences and Biomedical Engineering, King s College London, London, UK
    Eur Radiol 22:1687-92. 2012
    ..To investigate how the histological scoring of microvessel density affects correlations between integrated (18)F-FDG-PET/perfusion CT parameters and CD105 microvessel density...
  21. ncbi request reprint CT colonography: automated measurement of colonic polyps compared with manual techniques--human in vitro study
    Stuart A Taylor
    Department of Imaging, University College Hospital, 2F Podium, 235 Euston Rd, London NW1 2BU, England
    Radiology 242:120-8. 2007
    ..To prospectively investigate the relative accuracy and reproducibility of manual and automated computer software measurements by using polyps of known size in a human colectomy specimen...
  22. doi request reprint Polyp characteristics correctly annotated by computer-aided detection software but ignored by reporting radiologists during CT colonography
    Stuart A Taylor
    Department of Specialist X Ray, University College Hospital, 2F Podium, 235 Euston Rd, London NW1 2BU, England
    Radiology 253:715-23. 2009
    ..To retrospectively describe the characteristics of polyps incorrectly dismissed by radiologists despite appropriate computer-aided detection (CAD) prompting during computed tomographic (CT) colonography...
  23. ncbi request reprint European Society of Gastrointestinal and Abdominal Radiology (ESGAR): consensus statement on CT colonography
    Stuart A Taylor
    Department of Imaging, University College Hospital, 2F Podium, 235 Euston Road, London, NW1 2BU, United Kingdom
    Eur Radiol 17:575-9. 2007
    ..There was consensus that polyps 4 mm or less could be ignored assuming agreement from local gastroenterological colleagues. There is increasing consensus amongst European experts as to the current best practice in CTC...
  24. doi request reprint CT colonography and computer-aided detection: effect of false-positive results on reader specificity and reading efficiency in a low-prevalence screening population
    Stuart A Taylor
    Department of Specialist X Ray, University College Hospital, 2F Podium, 235 Euston Rd, London NW1 2BU, England
    Radiology 247:133-40. 2008
    ....
  25. pmc Patients' & healthcare professionals' values regarding true- & false-positive diagnosis when colorectal cancer screening by CT colonography: discrete choice experiment
    Darren Boone
    Centre for Medical Imaging, University College London, London, United Kingdom
    PLoS ONE 8:e80767. 2013
    ..To establish the relative weighting given by patients and healthcare professionals to gains in diagnostic sensitivity versus loss of specificity when using CT colonography (CTC) for colorectal cancer screening...
  26. doi request reprint CT colonography: computer-aided detection of morphologically flat T1 colonic carcinoma
    Stuart A Taylor
    Department of Specialist X Ray, University College Hospital, London, UK
    Eur Radiol 18:1666-73. 2008
    ..At all settings, >96.1% of CAD true positives were classified as focal. CAD may be effective for the detection of morphologically flat cancer, although minimally raised laterally spreading tumors remain problematic...
  27. ncbi request reprint Colonic polyps: effect of attenuation of tagged fluid and viewing window on conspicuity and measurement--in vitro experiment with porcine colonic specimen
    Andrew Slater
    Department of Intestinal Imaging, St Mark s Hospital, London, England
    Radiology 240:101-9. 2006
    ..To investigate effect of attenuation of tagged fluid and viewing window on polyp conspicuity and measurement with porcine colonic specimen...
  28. ncbi request reprint CT colonography: investigation of the optimum reader paradigm by using computer-aided detection software
    Stuart A Taylor
    Department of Specialist X Ray, University College Hospital, 235 Euston Rd, 2F Podium, London NW1 2BU, England
    Radiology 246:463-71. 2008
    ....
  29. doi request reprint Flat neoplasia of the colon: CT colonography with CAD
    Stuart A Taylor
    Department of Specialist X Ray, University College Hospital, London, UK
    Abdom Imaging 34:173-81. 2009
    ..This review will discuss the clinical relevance of flat colonic neoplasia, describe some of the challenges facing CAD detection algorithms, and review the current CAD literature on this topic...
  30. doi request reprint Public preferences for colorectal cancer screening tests: a review of conjoint analysis studies
    Alex Ghanouni
    Department of Epidemiology and Public Health, University College London, London, UK
    Expert Rev Med Devices 10:489-99. 2013
    ..Future research should investigate how studies can go beyond the guidelines in order to improve this and also explore how test preferences may differ by important population subgroups. ..
  31. doi request reprint Global small bowel motility: assessment with dynamic MR imaging
    Alex Menys
    Centre for Medical Imaging, University College London, 3rd Floor East, 250 Euston Rd, London NW1 2PG, England GI Physiology Unit, University College London Hospital, London, England
    Radiology 269:443-50. 2013
    ..To assess the repeatability in human volunteers of software-quantified small bowel motility captured with magnetic resonance (MR) imaging and to test the ability to detect changes in motility induced by pharmacologic agents...
  32. doi request reprint Non-perforating small bowel Crohn's disease assessed by MRI enterography: derivation and histopathological validation of an MR-based activity index
    Michael J Steward
    Department of Specialist Imaging, University College Hospital London, 235 Euston Road, London NW1 2BU, United Kingdom
    Eur J Radiol 81:2080-8. 2012
    ..To develop and validate a qualitative scoring system for enteric Crohn's disease activity using MR enterography (MRE)...
  33. doi request reprint Public perceptions and preferences for CT colonography or colonoscopy in colorectal cancer screening
    Alex Ghanouni
    Department of Epidemiology and Public Health, University College London, London, UK
    Patient Educ Couns 89:116-21. 2012
    ..To examine public perceptions of and preferences for colonoscopy vs. CT colonography (CTC) as technologies for colorectal cancer (CRC) screening...
  34. doi request reprint Uni- and bidirectional wide angle CT colonography: effect on missed areas, surface visualization, viewing time and polyp conspicuity
    James E East
    Wolfson Unit for Endoscopy, St Mark s Hospital, Watford Road, Harrow, Imperial College London, London, UK
    Eur Radiol 18:1910-7. 2008
    ..03. Wide-angle (140-degree) CTC can reduce both numbers of missed areas and review times. However, this may be at the expense of polyp conspicuity...
  35. ncbi request reprint Computed tomography colonography: automated diameter and volume measurement of colonic polyps compared with a manual technique--in vitro study
    David Burling
    Intestinal Imaging Centre, St Mark s Hospital, Northwick Park, London, United Kingdom
    J Comput Assist Tomogr 29:387-93. 2005
    ..To investigate inter- and intraobserver agreement of automated measurement of polyp diameter in vitro...
  36. ncbi request reprint CT colonography: effect of colonic distension on polyp measurement accuracy and agreement-in vitro study
    Stuart Taylor
    Department of Imaging, University College Hospital, 235 Euston Road, London, NW1 2BU, UK
    Acad Radiol 13:850-9. 2006
    ..To investigate the effect of colonic distension on polyp measurement accuracy and reader agreement...
  37. ncbi request reprint Registration of the endoluminal surfaces of the colon derived from prone and supine CT colonography
    Holger R Roth
    Centre for Medical Image Computing, University College London, London WC1E 6BT, United Kingdom
    Med Phys 38:3077-89. 2011
    ..The authors present a novel approach to automatically establish spatial correspondence between prone and supine endoluminal colonic surfaces after surface parameterization, even in the case of local colon collapse...
  38. doi request reprint CT colonography: a systematic review of standard of reporting for studies of computer-aided detection
    Charlotte Robinson
    Department of Specialist Radiology, University College Hospital and University College London, 235 Euston Rd, Podium Level 2, London NW1 2BU, England
    Radiology 246:426-33. 2008
    ..To determine objectively the current standard of reporting for studies of computer-aided detection (CAD) for computed tomographic (CT) colonography by systematically reviewing published articles...
  39. ncbi request reprint Reader error during CT colonography: causes and implications for training
    Andrew Slater
    Intestinal Imaging, St Mark s and Northwick Park Hospitals, Harrow, London, UK
    Eur Radiol 16:2275-83. 2006
    ..Untrained reader performance is variable but generally poor. Most missed polyps are due perceptual error rather than characterization, suggesting basic training should focus heavily on lesion detection...
  40. ncbi request reprint CT colonography interpretation times: effect of reader experience, fatigue, and scan findings in a multi-centre setting
    David Burling
    Intestinal Imaging Centre, St Marks Hospital, London, UK
    Eur Radiol 16:1745-9. 2006
    ..Technicians who report more slowly are more accurate. All groups reported faster as the study period progressed...
  41. ncbi request reprint Establishing spatial correspondence between the inner colon surfaces from prone and supine CT colonography
    Holger Roth
    Centre for Medical Image Computing, University College London, UK
    Med Image Comput Comput Assist Interv 13:497-504. 2010
    ..The method was validated on twelve clinical cases and demonstrated promising registration results over the majority of the colon surface...
  42. doi request reprint Evidence review and status update on computed tomography colonography
    Darren Boone
    Centre for Medical Imaging, University College Hospital, 250 Euston Road, London NW1 2BU, UK
    Curr Gastroenterol Rep 13:486-94. 2011
    ..The purpose of this review is to bring the reader up-to-date with the latest developments in CT colonography, in particular, those of the last year...
  43. doi request reprint Nonlaxative PET/CT colonography: feasibility, acceptability, and pilot performance in patients at higher risk of colonic neoplasia
    Stuart A Taylor
    Department of Specialist Radiology, University College London Hospital NHS Trust, London, United Kingdom
    J Nucl Med 51:854-61. 2010
    ..The purpose was to prospectively test the technical feasibility and acceptability of combined nonlaxative PET/CT colonography in patients at higher risk of colorectal neoplasia and to provide pilot data on diagnostic performance...
  44. doi request reprint Derivation of a T2-weighted MRI total colonic inflammation score (TCIS) for assessment of patients with severe acute inflammatory colitis-a preliminary study
    Rehana Hafeez
    Department of Surgery, University College London Hospitals NHS Trust, London, UK
    Eur Radiol 21:366-77. 2011
    ..To derive an MRI score for assessing severity, therapeutic response and prognosis in acute severe inflammatory colitis...
  45. doi request reprint Choosing between CT colonography and colonoscopy in the diagnostic context: a qualitative study of influences on patient preferences
    Christian von Wagner
    Cancer Research UK, Health Behavior Research Centre, University College London, London, UK
    Health Expect 12:18-26. 2009
    ..To explore information needs and preferences on diagnostic bowel tests and elicit preferences for CT colonography (CTC) vs. colonoscopy (CC)...
  46. doi request reprint Evaluation of Crohn's disease activity: initial validation of a magnetic resonance enterography global score (MEGS) against faecal calprotectin
    Jesica C Makanyanga
    Centre for Medical Imaging, University College London, London, UK
    Eur Radiol 24:277-87. 2014
    ..To develop an MRI enterography global score (MEGS) of Crohn's disease (CD) activity compared with a reference standard of faecal calprotectin (fC), C-reactive protein (CRP) and Harvey-Bradshaw index (HBI)...
  47. doi request reprint Congenital anorectal atresia: MR imaging of late post-operative appearances in adult patients with anal incontinence
    Louise Gartner
    Department of Intestinal Imaging, St Mark s Hospital, Watford Road, Northwick Park, London, UK
    Eur Radiol 23:3318-24. 2013
    ..To describe the MR imaging findings in adults presenting with anal incontinence following pull-through perineoplasty for anorectal atresia...
  48. doi request reprint Dynamic contrast-enhanced MRI improves accuracy for detecting focal splenic involvement in children and adolescents with Hodgkin disease
    Shonit Punwani
    Centre for Medical Imaging, University College London, 3rd Floor East Wing, 250 Euston Road, London, UK, NW1 2PG
    Pediatr Radiol 43:941-9. 2013
    ..Accurate assessment of splenic disease is important for staging Hodgkin lymphoma...
  49. doi request reprint Method for tracking eye gaze during interpretation of endoluminal 3D CT colonography: technical description and proposed metrics for analysis
    Peter Phillips
    Health and Medical Sciences Group, University of Cumbria, Bowerham Rd, Lancaster LA1 3DJ, England
    Radiology 267:924-31. 2013
    ..To develop an eye-tracking method applicable to three-dimensional (3D) images, where the abnormality is both moving and changing in size...
  50. doi request reprint Systematic review: bias in imaging studies - the effect of manipulating clinical context, recall bias and reporting intensity
    Darren Boone
    Centre for Medical Imaging, University College London, London, UK
    Eur Radiol 22:495-505. 2012
    ..In particular, those which modify or conceal sample characteristics (e.g. disease prevalence or reporting intensity) or research setting ("laboratory" versus "field"). We also investigated recall bias...
  51. ncbi request reprint Virtual colonoscopy: current status and future directions
    David Burling
    Intestinal Imaging Centre, St Mark s Hospital, London, UK
    Gastrointest Endosc Clin N Am 15:773-95. 2005
    ..Future directions for virtual colonoscopy are explored, including advances toward prepless examinations and automated interpretation...
  52. ncbi request reprint Potentially serious adverse events at CT colonography in symptomatic patients: national survey of the United Kingdom
    David Burling
    Department of Specialist Radiology, Podium Level 2, University College Hospital, Euston Road, London NW1 2BU, England
    Radiology 239:464-71. 2006
    ..To retrospectively determine the incidence of potentially serious adverse events associated with computed tomographic (CT) colonography performed in patients with symptoms of colorectal cancer...
  53. doi request reprint Diffusion-weighted MRI of lymphoma: prognostic utility and implications for PET/MRI?
    Shonit Punwani
    Centre for Medical Imaging, University College London, 3rd Floor East Wing, 250 Euston Road, London, NW1 2PG, UK
    Eur J Nucl Med Mol Imaging 40:373-85. 2013
    ..With the recent introduction of PET/MRI, we investigated whether diffusion-weighted imaging (DWI) can complement PET for predicting local treatment response in Hodgkin lymphoma...
  54. doi request reprint The flow-metabolic phenotype of primary colorectal cancer: assessment by integrated 18F-FDG PET/perfusion CT with histopathologic correlation
    Vicky Goh
    Division of Imaging Sciences and Biomedical Engineering, King s College London, London, United Kingdom
    J Nucl Med 53:687-92. 2012
    ..The aim of this study was to assess the in vivo flow-metabolic phenotype in primary colorectal cancer with integrated (18)F-FDG PET/perfusion CT and its relationship to gold standard histopathologic assessment of angiogenesis and hypoxia...
  55. doi request reprint Mural inflammation in Crohn disease: location-matched histologic validation of MR imaging features
    Shonit Punwani
    Department of Specialist X Ray, University College London Hospitals National Health Service Foundation Trust, 235 Euston Rd, Podium Level 2, London NW1 2BU, England
    Radiology 252:712-20. 2009
    ..To validate proposed magnetic resonance (MR) imaging features of Crohn disease activity against a histopathologic reference...
  56. ncbi request reprint Value of hydrogen peroxide enhancement of three-dimensional endoanal ultrasound in fistula-in-ano
    Gordon N Buchanan
    Department of Surgery, St Mark s Hospital, London, United Kingdom
    Dis Colon Rectum 48:141-7. 2005
    ..The aim of this prospective study was to compare the accuracy of three-dimensional endoanal ultrasound with that of hydrogen peroxide enhanced three-dimensional endoanal ultrasound in diagnosing recurrent or complex fistula-in-ano...
  57. ncbi request reprint Imaging of fistula in ano
    Steve Halligan
    Department of Specialist Radiology, University College Hospital, Level 2, Podium, 235 Euston Road, London NW1 2BU, England
    Radiology 239:18-33. 2006
    ..Most important, the authors describe how the radiologist is well placed to answer the surgical riddles that must be solved for treatment to be effective...
  58. ncbi request reprint Cardiovascular effects at multi-detector row CT colonography compared with those at conventional endoscopy of the colon
    Stuart A Taylor
    Department of Intestinal Imaging, St Mark s Hospital, Level 4V, Watford Road, Northwick Park, London HA1 3UJ, England, United Kingdom
    Radiology 229:782-90. 2003
    ..To compare the cardiovascular effects of computed tomographic (CT) colonography and conventional endoscopy in a group of patients undergoing both procedures...
  59. ncbi request reprint Computerized tomography colonography
    David Burling
    St Mark s Hospital, Intestinal Imaging Center, Level 4V, Watford Road, Northwick Park, Harrow, Middlesex, HA1 3UJ, UK
    Expert Rev Anticancer Ther 4:615-25. 2004
    ..Although already widely disseminated, important future developments, such as prepless bowel cleansing (laxative free) and computer-aided diagnosis, may establish CT colonography as the preferred first-line, whole-colon investigation...
  60. ncbi request reprint Surface visualization at CT colonography simulated colonoscopy: effect of varying field of view and retrograde view
    James E East
    Wolfson Unit for Endoscopy, St Mark s Hospital, Harrow, Middlesex, United Kingdom
    Am J Gastroenterol 102:2529-35. 2007
    ....
  61. ncbi request reprint CT colonography: effect of experience and training on reader performance
    Stuart A Taylor
    Department of Intestinal Imaging, St Mark s Hospital, Watford Road, Northwick Park, London HA1 3UJ, UK
    Eur Radiol 14:1025-33. 2004
    ..There is considerable variation in the ability to report CT colonography. Prior experience in gastrointestinal radiology is a distinct advantage. Competence cannot be assumed even after directed training via a database of 50 cases...
  62. ncbi request reprint Computer-assisted reader software versus expert reviewers for polyp detection on CT colonography
    Stuart A Taylor
    Department of Intestinal Imaging, St Mark s and Northwick Park Hospitals, Watford Rd, Harrow HA1 3UJ, United Kingdom
    AJR Am J Roentgenol 186:696-702. 2006
    ..The purpose of our study was to assess the sensitivity of computer-assisted reader (CAR) software for polyp detection compared with the performance of expert reviewers...
  63. ncbi request reprint Causes of false-negative findings at CT colonography
    Steve Halligan
    Radiology 238:1075-6; author reply 1076-7. 2006
  64. ncbi request reprint Polyp detection with CT colonography: primary 3D endoluminal analysis versus primary 2D transverse analysis with computer-assisted reader software
    Stuart A Taylor
    Department of Intestinal Imaging, St Mark s Hospital, Northwick Park, Harrow, United Kingdom
    Radiology 239:759-67. 2006
    ....
  65. ncbi request reprint Multi-detector row CT colonography: effect of collimation, pitch, and orientation on polyp detection in a human colectomy specimen
    Stuart A Taylor
    Department of Intestinal Imaging, St Mark s Hospital, Northwick Park, Watford Road, Harrow, Middlesex HA1 3UJ, England
    Radiology 229:109-18. 2003
    ....
  66. ncbi request reprint Acceptance by patients of multidetector CT colonography compared with barium enema examinations, flexible sigmoidoscopy, and colonoscopy
    Stuart A Taylor
    Department of Intestinal Imaging, Intestinal Imaging Centre, Level 4V, St Mark s Hospital, Watford Rd, Northwick Park, London HA1 3UJ, United Kingdom
    AJR Am J Roentgenol 181:913-21. 2003
    ..Questionnaires were also completed by 140 patients undergoing double-contrast barium enema examinations. Responses were compared using Wilcoxon's matched pairs test and the Mann-Whitney test...
  67. ncbi request reprint Virtual colonoscopy
    Steve Halligan
    JAMA 292:432; author reply 433. 2004
  68. ncbi request reprint Clinical examination, endosonography, and MR imaging in preoperative assessment of fistula in ano: comparison with outcome-based reference standard
    Gordon N Buchanan
    Departments of Surgery and Intestinal Imaging, St Mark s Hospital, Level 4V, Watford Road, Northwick Park, Harrow, London HA1 3UJ, England
    Radiology 233:674-81. 2004
    ..To prospectively evaluate the relative accuracy of digital examination, anal endosonography, and magnetic resonance (MR) imaging for preoperative assessment of fistula in ano by comparison to an outcome-derived reference standard...
  69. ncbi request reprint Quantitative colorectal cancer perfusion measurement using dynamic contrast-enhanced multidetector-row computed tomography: effect of acquisition time and implications for protocols
    Vicky Goh
    Intestinal Imaging Centre, St Mark s Hospital, Harrow, United Kingdom
    J Comput Assist Tomogr 29:59-63. 2005
    ..To determine the effect of acquisition time on quantitative colorectal cancer perfusion measurement...
  70. ncbi request reprint Unbiased studies are needed before virtual colonoscopy can be dismissed
    Steve Halligan
    Department of Intestinal Imaging and Cancer Research UK Colorectal Cancer Unit, St Mark s Hospital, Northwick Park, Middlesex HA1 3UJ, UK
    Lancet 365:275-6. 2005
  71. ncbi request reprint Quantitative assessment of tissue perfusion using MDCT: comparison of colorectal cancer and skeletal muscle measurement reproducibility
    Vicky Goh
    Paul Strickland Scanner Centre, Mt Vernon Hospital, Northwood, United Kingdom
    AJR Am J Roentgenol 187:164-9. 2006
    ..The purposes of this study were to determine the reproducibility of quantitative colorectal cancer perfusion measurements using dynamic contrast-enhanced MDCT, and to compare this with measurements from skeletal muscle...
  72. ncbi request reprint Polyp measurement using CT colonography: agreement with colonoscopy and effect of viewing conditions on interobserver and intraobserver agreement
    David Burling
    Intestinal Imaging Centre, St Mark s Hospital, Harrow, Middlesex, England HA1 3UJ
    AJR Am J Roentgenol 186:1597-604. 2006
    ..This article presents inter- and intraobserver agreement for estimates of polyp diameter using CT colonography, including the effects of different visualization displays and prior experience...
  73. ncbi request reprint Quantitative tumor perfusion assessment with multidetector CT: are measurements from two commercial software packages interchangeable?
    Vicky Goh
    Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England
    Radiology 242:777-82. 2007
    ..To prospectively determine the level of agreement between tumor blood volume and permeability measurements obtained with two commercially available perfusion computed tomographic (CT) software packages...
  74. ncbi request reprint Optimizing colonic distention for multi-detector row CT colonography: effect of hyoscine butylbromide and rectal balloon catheter
    Stuart A Taylor
    Intestinal Imaging Centre and Cancer Research UK Colorectal Cancer Unit, Level 4V, St Mark s Hospital, Watford Rd, Northwick Park, Harrow, Middlesex HA1 3UJ, England
    Radiology 229:99-108. 2003
    ..To investigate the effects of hyoscine butylbromide and an inflatable rectal balloon catheter on luminal distention during computed tomographic (CT) colonography...
  75. ncbi request reprint Automated insufflation of carbon dioxide for MDCT colonography: distension and patient experience compared with manual insufflation
    David Burling
    Department of Intestinal Imaging, St Mark s and Northwick Park Hospitals, Harrow HA1 3UJ, UJK
    AJR Am J Roentgenol 186:96-103. 2006
    ..The purpose of our study was to compare the effects of automated and manual carbon dioxide insufflation before CT colonography on distention and patient acceptance...
  76. ncbi request reprint Quantitative assessment of colorectal cancer perfusion using MDCT: inter- and intraobserver agreement
    Vicky Goh
    Intestinal Imaging Centre, St Mark s Hospital, Watford Rd, Level 4V, Harrow, Middlesex, HA1 3UJ, United Kingdom
    AJR Am J Roentgenol 185:225-31. 2005
    ..The objective of our study was to determine inter- and intraobserver agreement of MDCT colorectal cancer perfusion measurements...
  77. pmc Systematic reviews of diagnostic tests in cancer: review of methods and reporting
    Susan Mallett
    Centre for Statistics in Medicine, University of Oxford, Wolfson College, Oxford OX2 6UD
    BMJ 333:413. 2006
    ..To assess the methods and reporting of systematic reviews of diagnostic tests...
  78. doi request reprint Quantitative assessment of colorectal cancer tumor vascular parameters by using perfusion CT: influence of tumor region of interest
    Vicky Goh
    Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, Middlesex, England
    Radiology 247:726-32. 2008
    ..To prospectively determine whether position and size of tumor region of interest (ROI) influence estimates of colorectal cancer vascular parameters at computed tomography (CT)...
  79. doi request reprint Colorectal tumor vascularity: quantitative assessment with multidetector CT--do tumor perfusion measurements reflect angiogenesis?
    Vicky Goh
    Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, Middlesex, England
    Radiology 249:510-7. 2008
    ....