Research Topics
| Nathan J McDannoldSummaryAffiliation: Harvard University Country: USA Publications
Research Grants
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Detail Information
Publications
Temporary disruption of the blood-brain barrier by use of ultrasound and microbubbles: safety and efficacy evaluation in rhesus macaquesNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
Cancer Res 72:3652-63. 2012..These results therefore support clinical testing of this noninvasive-targeted drug delivery method...
MRI-guided targeted blood-brain barrier disruption with focused ultrasound: histological findings in rabbitsNathan Mcdannold
Department of Radiology, Harvard Medical School and Brigham and Women s Hospital, Boston, MA 02115, USA
Ultrasound Med Biol 31:1527-37. 2005..These findings indicate that this method is safe for targeted drug delivery, at least when compared with the currently available invasive methods...
Targeted disruption of the blood-brain barrier with focused ultrasound: association with cavitation activityN McDannold
Brigham and Women s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
Phys Med Biol 51:793-807. 2006....
Uterine leiomyomas: MR imaging-based thermometry and thermal dosimetry during focused ultrasound thermal ablationNathan Mcdannold
Department of Radiology, Harvard Medical School, Brigham and Women s Hospital, 221 Longwood Ave LMRC, 007c, Boston, MA 02115, USA
Radiology 240:263-72. 2006..To retrospectively evaluate magnetic resonance (MR) imaging-based thermometry and thermal dosimetry during focused ultrasound treatments of uterine leiomyomas (ie, fibroids)...
Microbubble contrast agent with focused ultrasound to create brain lesions at low power levels: MR imaging and histologic study in rabbitsNathan J McDannold
Department of Radiology, Harvard Medical School and Brigham and Women s Hospital, 221 Longwood Ave, LMRC 521, Boston, MA 02115, USA
Radiology 241:95-106. 2006....
Quality assurance and system stability of a clinical MRI-guided focused ultrasound system: four-year experienceNathan Mcdannold
Harvard Medical School, Brigham and Women s Hospital, Department of Radiology, Boston, Massachusetts 02115, USA
Med Phys 33:4307-13. 2006..This simple method to evaluate the performance appeared to be sensitive to small changes in system performance, which was adequately stable over a four-year time period...
Use of ultrasound pulses combined with Definity for targeted blood-brain barrier disruption: a feasibility studyNathan Mcdannold
Department of Radiology, Harvard Medical School and Brigham and Women s Hospital, Boston, MA 02115, USA
Ultrasound Med Biol 33:584-90. 2007..However, under the experimental conditions used in this study, Optison produced a larger effect for the same acoustic pressure amplitude...
Blood-brain barrier disruption induced by focused ultrasound and circulating preformed microbubbles appears to be characterized by the mechanical indexNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, MA, USA
Ultrasound Med Biol 34:834-40. 2008..It also suggests that lower frequency sonication produces less red blood cell extravasation per unit area...
Effects of acoustic parameters and ultrasound contrast agent dose on focused-ultrasound induced blood-brain barrier disruptionNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Boston, MA 02115, USA
Ultrasound Med Biol 34:930-7. 2008..This data suggests that over the range of parameters tested, BBB disruption is not affected by PRF or ultrasound contrast agent dose. However, both the BBB disruption magnitude and its threshold depend on the burst length...
Magnetic resonance acoustic radiation force imagingNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
Med Phys 35:3748-58. 2008..MR-ARFI has potential for elastography or to guide ultrasound therapies that use low-power pulsed ultrasound exposures, such as drug delivery...
Evaluation of referenceless thermometry in MRI-guided focused ultrasound surgery of uterine fibroidsNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Boston, Massachusetts 02115, USA
J Magn Reson Imaging 28:1026-32. 2008..To clinically assess a previously described method (Rieke et.al., Magn Reson Med 2004) to produce more motion-robust MRI-based temperature images using data acquired during MRI-guided focused ultrasound surgery (MRgFUS) of uterine fibroids...
Transcranial magnetic resonance imaging- guided focused ultrasound surgery of brain tumors: initial findings in 3 patientsNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
Neurosurgery 66:323-32; discussion 332. 2010..This work evaluated the clinical feasibility of transcranial magnetic resonance imaging-guided focused ultrasound surgery...
Blood-brain barrier disruption and vascular damage induced by ultrasound bursts combined with microbubbles can be influenced by choice of anesthesia protocolNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, MA 02115, USA
Ultrasound Med Biol 37:1259-70. 2011..These experiments may also have been influenced by the recently reported findings that the circulation time for perfluorocarbon microbubbles is substantially reduced when oxygen is used as the carrier gas...
Quantitative MRI-based temperature mapping based on the proton resonant frequency shift: review of validation studiesN McDannold
Department of Radiology, Harvard Medical School and Brigham and Women s Hospital, Boston, MA 02115, USA
Int J Hyperthermia 21:533-46. 2005..In this paper, these validation studies will be reviewed. In addition, clinical studies that have shown this method feasible in human treatments will be overviewed...
MRI monitoring of the thermal ablation of tissue: effects of long exposure timesN McDannold
Department of Radiology, Division of MRI, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
J Magn Reson Imaging 13:421-7. 2001..The thermal dose model predicted the extent of tissue damage well for subsequent one minute sonications. These results will have implications for MRI guidance of thermal therapies with long exposure times...
Usefulness of MR imaging-derived thermometry and dosimetry in determining the threshold for tissue damage induced by thermal surgery in rabbitsN J McDannold
Department of Radiology, Division of MRI, Brigham and Women s Hospital, Harvard Medical School, 221 Longwood Ave, Longwood Medical Research Center, 007c, Boston, MA 02115, USA
Radiology 216:517-23. 2000..To investigate in vivo the feasibility of using magnetic resonance (MR) imaging-derived temperature and thermal dose measurements to find the threshold of thermal tissue damage...
Magnetic resonance image-guided thermal ablationsN J McDannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
Top Magn Reson Imaging 11:191-202. 2000..These methods of using MRI for planning, guiding, and monitoring thermal therapies are reviewed...
MRI-guided focused ultrasound surgery in the brain: tests in a primate modelNathan Mcdannold
Department of Radiology, Harvard Medical School and Brigham and Women s Hospital, Boston, Massachusetts, USA
Magn Reson Med 49:1188-91. 2003..The capabilities demonstrated in this study will be of benefit for clinical ultrasound therapies in the brain...
Temperature monitoring with line scan echo planar spectroscopic imagingN McDannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02155, USA
Med Phys 28:346-55. 2001..A new magnetic resonance imaging method, line scan echo planar spectroscopic imaging (LSEPSI), is shown capable of providing rapid, internally referenced temperature monitoring from water and fat chemical shifts...
MRI evaluation of thermal ablation of tumors with focused ultrasound- McDannold
Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USA
J Magn Reson Imaging 8:91-100. 1998..The temperature rise and lesion size varied significantly. Regions of tissue coagulation calculated from MR data correlated well with post-therapy imaging...
The use of quantitative temperature images to predict the optimal power for focused ultrasound surgery: in vivo verification in rabbit muscle and brainNathan Mcdannold
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
Med Phys 29:356-65. 2002..Even with this underestimation of the power, this method will be useful because it will allow an estimate of the proper power to use during FUS surgery without exact knowledge of the tissue parameters...
Heat-activated liposomal MR contrast agent: initial in vivo results in rabbit liver and kidneyNathan Mcdannold
Department of Radiology, Harvard Medical School and Brigham and Women s Hospital, 221 Longwood Ave, LMRC 007C, Boston, MA 02115, USA
Radiology 230:743-52. 2004....
MRI investigation of the threshold for thermally induced blood-brain barrier disruption and brain tissue damage in the rabbit brainNathan Mcdannold
Department of Radiology, Harvard Medical School and Brigham and Women s Hospital, Boston, Massachusetts 02115, USA
Magn Reson Med 51:913-23. 2004..The temperature information was better than the applied acoustic power or energy for predicting the damage than the ultrasound parameters. MRI was sensitive in detecting threshold-level damage...
The kinetics of blood brain barrier permeability and targeted doxorubicin delivery into brain induced by focused ultrasoundJuyoung Park
Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, 221 Longwood Ave Boston, MA 02115, USA
J Control Release 162:134-42. 2012..The results of this study provide information needed to take into account the dynamics BBB disruption over time after FUS...
Ultrafast 1D MR thermometry using phase or frequency mappingChang Sheng Mei
Department of Physics, Boston College, Chestnut Hill, MA, USA
MAGMA 25:5-14. 2012..To develop an ultrafast MRI-based temperature monitoring method for application during rapid ultrasound exposures in moving organs...
Renal ultrafiltration changes induced by focused USKrisztina Fischer
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Focused Ultrasound Laboratory, 221 Longwood Ave, Room 515, Boston, MA 02215, USA
Radiology 253:697-705. 2009..To determine if focused ultrasonography (US) combined with a diagnostic microbubble-based US contrast agent can be used to modulate glomerular ultrafiltration and size selectivity...
Uterine leiomyomas: MR imaging-guided focused ultrasound surgery--results of different treatment protocolsFiona M Fennessy
Department of Radiology, Harvard Medical School Brigham and Women s Hospital, 75 Francis St, Boston, MA 02115, USA
Radiology 243:885-93. 2007..To prospectively assess patient response (after 12 months) to magnetic resonance (MR) imaging-guided focused ultrasound surgery in treatment of uterine leiomyomas by using two treatment protocols...
Uterine leiomyomas: MR imaging-guided focused ultrasound surgery--imaging predictors of successZsuzsanna M Lénárd
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Mass, USA
Radiology 249:187-94. 2008..To retrospectively assess the magnetic resonance (MR) imaging predictors of success at reducing uterine leiomyoma volume and achieving patient symptom relief 12 months after MR imaging-guided focused ultrasound surgery...
Focused ultrasound modulates region-specific brain activitySeung Schik Yoo
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, MA 02115, USA
Neuroimage 56:1267-75. 2011..It is anticipated that the use of this technology will have an impact on brain research and may offer novel therapeutic interventions in various neurological conditions and psychiatric disorders...
Targeted and reversible blood-retinal barrier disruption via focused ultrasound and microbubblesJuyoung Park
Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
PLoS ONE 7:e42754. 2012..More severe retinal damage was observed at 1.1 MPa. These results demonstrate that focused ultrasound and microbubbles can offer a noninvasive and targeted means to transiently disrupt the BRB for ocular drug delivery...
Multiresolution MRI temperature monitoring in a reduced field of viewMohammed H Aljallad
Department of Physics, University of Massachusetts Lowell, Lowell, MA, USA
Magn Reson Imaging 29:1205-14. 2011..The purpose was to develop a new magnetic resonance imaging technique for fast temperature monitoring with extended volume coverage...
Combining two-dimensional spatially selective RF excitation, parallel imaging, and UNFOLD for accelerated MR thermometry imagingChang Sheng Mei
Department of Physics, Boston College, Chestnut Hill, Massachusetts, USA
Magn Reson Med 66:112-22. 2011..1°c ± 0.6; r = 0.98; p > 0.05)...
Focused ultrasound surgery in oncology: overview and principlesClare M C Tempany
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, 75 Francis St, Room 050, L1, Boston, MA 02129, USA
Radiology 259:39-56. 2011..In this article the background, principles, technical devices, and clinical cancer applications of image-guided FUS are reviewed...
Temperature monitoring in fat with MRIK Hynynen
Department of Radiology, Division of MRI, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
Magn Reson Med 43:901-4. 2000..This can be very important for breast tumor surgery, fat ablation, and for treating deep seated tumors through superficial fat layers. Magn Reson Med 43:901-904, 2000...
MRI guided and monitored focused ultrasound thermal ablation methods: a review of progressK Hynynen
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
Int J Hyperthermia 20:725-37. 2004..Overall, this emerging modality holds significant potential for non-invasive tumour treatment of both benign and malignant tumours...
Noninvasive MR imaging-guided focal opening of the blood-brain barrier in rabbitsK Hynynen
Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115, USA
Radiology 220:640-6. 2001..To determine if focused ultrasound beams can be used to locally open the blood-brain barrier without damage to surrounding brain tissue and if magnetic resonance (MR) imaging can be used to monitor this procedure...
Non-invasive opening of BBB by focused ultrasoundK Hynynen
Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
Acta Neurochir Suppl 86:555-8. 2003..v.. After the sacrifice of the animals blue spots were found in the brain in the sonicated locations. This method may have potential for targeted delivery of macromolecules in the brain...
Comparison of modelled and observed in vivo temperature elevations induced by focused ultrasound: implications for treatment planningK Mahoney
Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
Phys Med Biol 46:1785-98. 2001..0 to 1.7 times the experimental results, again varying with mode. Thus, a significant improvement in the treatment planning can be obtained by using actual measured ultrasound field distributions in combination with backward projection...
Apoptosis in ultrasound-produced threshold lesions in the rabbit brainN Vykhodtseva
Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
Ultrasound Med Biol 27:111-7. 2001..By 48 h after the sonications, the number of apoptotic cells had increased up to 17 +/- 9%. The impact of this finding for therapy needs to be explored further...
Accumulation of phase-shift nanoemulsions to enhance MR-guided ultrasound-mediated tumor ablation in vivoJonathan A Kopechek
Department of Mechanical Engineering, Boston University, Boston, MA, USA
J Healthc Eng 4:109-26. 2013..These results suggest that PSNE could dramatically improve the efficiency and clinical feasibility of MRgHIFU...
Ultrasound enhanced delivery of molecular imaging and therapeutic agents in Alzheimer's disease mouse modelsScott B Raymond
The Harvard MIT Division of Health Sciences and Technology, Cambridge, Massachusetts, United States of America
PLoS ONE 3:e2175. 2008..Furthermore, this technique may be used to deliver a wide variety of small and large molecules to the brain for imaging and therapy in other neurodegenerative diseases...
Research Grants
- Novel MRI Contrast Agent for Monitoring Thermal AblationNathan Mcdannold; Fiscal Year: 2006....
