Gregory C Sharp

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Gregory C Sharp

Publications by authors named "Gregory C Sharp"

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54Publications

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Proton range shift analysis on brain pseudo-CT generated from T1 and T2 MR.

Acta Oncol 2018 May 29:1-11. Epub 2018 May 29.

a Department of Experimental and Clinical Medicine , Magna Graecia University of Catanzaro , Catanzaro , Italy.

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May 2018

Improvement of single detector proton radiography by incorporating intensity of time-resolved dose rate functions.

Phys Med Biol 2017 Dec 29;63(1):015030. Epub 2017 Dec 29.

Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America.

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December 2017

Investigation of real tissue water equivalent path lengths using an efficient dose extinction method.

Phys Med Biol 2017 Jun 23;62(14):5640-5651. Epub 2017 Jun 23.

Massachusetts General Hospital, Boston, MA 02114, United States of America.

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June 2017

ORAL02.03: Robust Correlation Between Metabolic Response Measured with F-FDG PET Soon After Therapy and Clinical Outcome in Lung Cancer: Topic: Radiation Oncology.

J Thorac Oncol 2016 Nov 28;11(11S):S253-S254. Epub 2016 Oct 28.

Massachusetts General Hospital/Harvard Medical School, Boston, MA/United States of America.

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November 2016

Technical Note: plastimatch mabs, an open source tool for automatic image segmentation.

Med Phys 2016 Sep;43(9):5155

Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro 88100, Italy.

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September 2016

A Prospective Comparison of the Effects of Interfractional Variations on Proton Therapy and Intensity Modulated Radiation Therapy for Prostate Cancer.

Int J Radiat Oncol Biol Phys 2016 May 29;95(1):444-53. Epub 2015 Dec 29.

Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.

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May 2016

Investigation of cone-beam CT image quality trade-off for image-guided radiation therapy.

Phys Med Biol 2016 May 1;61(9):3317-46. Epub 2016 Apr 1.

Department of Radiology, Massachusetts General Hospital & Harvard Medical School, Boston, MA 02114, USA.

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May 2016

Assessing residual motion for gated proton-beam radiotherapy.

J Radiat Res 2007 ;48 Suppl A:A55-9

Department of Radiation Oncology, Massachusetts General Hospital.

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April 2016

Gain Correction for an X-ray Imaging System With a Movable Flat Panel Detector and Intrinsic Localization Crosshair.

Technol Cancer Res Treat 2016 Apr 20;15(2):387-95. Epub 2015 Mar 20.

Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, USA.

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April 2016

Proton dose calculation on scatter-corrected CBCT image: Feasibility study for adaptive proton therapy.

Med Phys 2015 Aug;42(8):4449-59

Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114.

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August 2015

A Contralateral Esophagus-Sparing Technique to Limit Severe Esophagitis Associated With Concurrent High-Dose Radiation and Chemotherapy in Patients With Thoracic Malignancies.

Int J Radiat Oncol Biol Phys 2015 Jul 25;92(4):803-10. Epub 2015 Mar 25.

Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts. Electronic address:

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July 2015

Correlation of 18F-FDG PET avid volumes on pre-radiation therapy and post-radiation therapy FDG PET scans in recurrent lung cancer. In reply to Saraiya et al.

Int J Radiat Oncol Biol Phys 2014 Nov 18;90(4):969-70. Epub 2014 Oct 18.

Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.

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November 2014

Computing proton dose to irregularly moving targets.

Phys Med Biol 2014 Aug 16;59(15):4261-73. Epub 2014 Jul 16.

Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.

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August 2014

2D/4D marker-free tumor tracking using 4D CBCT as the reference image.

Phys Med Biol 2014 May 8;59(9):2219-33. Epub 2014 Apr 8.

Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, People's Republic of China. Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, USA.

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May 2014

Correlation of (18)F-FDG avid volumes on pre-radiation therapy and post-radiation therapy FDG PET scans in recurrent lung cancer.

Int J Radiat Oncol Biol Phys 2014 May;89(1):137-44

Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.

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May 2014

Contour-driven regression for label inference in atlas-based segmentation.

Med Image Comput Comput Assist Interv 2013 ;16(Pt 3):211-8

Computer Science and Artificial Intelligence Lab, MIT, USA.

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February 2014

Hypofractionated proton therapy for prostate cancer: dose delivery uncertainty due to interfractional motion.

Med Phys 2013 Jul;40(7):071714

Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, Massachusetts 02114, USA.

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July 2013

Analytic regularization of uniform cubic B-spline deformation fields.

Med Image Comput Comput Assist Interv 2012 ;15(Pt 2):122-9

Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA 02114, USA.

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January 2013

A voluntary breath-hold treatment technique for the left breast with unfavorable cardiac anatomy using surface imaging.

Int J Radiat Oncol Biol Phys 2012 Dec 11;84(5):e663-8. Epub 2012 Sep 11.

Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA.

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December 2012

Numerical solutions of the γ-index in two and three dimensions.

Phys Med Biol 2012 Nov 9;57(21):6981-97. Epub 2012 Oct 9.

Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.

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November 2012

Centerline extraction with principal curve tracing to improve 3D level set esophagus segmentation in CT images.

Conf Proc IEEE Eng Med Biol Soc 2011 ;2011:3403-6

Dept of Electricaland Computer Engineering, Nor theastern University, Boston, MA, USA.

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June 2012

A four-dimensional computed tomography analysis of multiorgan abdominal motion.

Int J Radiat Oncol Biol Phys 2012 May 22;83(1):435-41. Epub 2011 Dec 22.

Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.

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May 2012

Evaluation of the dosimetric impact of interfractional anatomical variations on prostate proton therapy using daily in-room CT images.

Med Phys 2011 Aug;38(8):4623-33

Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA.

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August 2011

Evaluation and commissioning of a surface based system for respiratory sensing in 4D CT.

J Appl Clin Med Phys 2010 Dec 4;12(1):3288. Epub 2010 Dec 4.

Department of Experimental and Clinical Medicine, Magna Graecia University viale Europa, Catanzaro, Italy.

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December 2010

In vivo proton beam range verification using spine MRI changes.

Int J Radiat Oncol Biol Phys 2010 Sep 17;78(1):268-75. Epub 2010 May 17.

Vanderbilt University School of Medicine, Nashville, TN 02114, USA.

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September 2010

Locally Deformable Shape Model to Improve 3D Level Set based Esophagus Segmentation.

Proc IAPR Int Conf Pattern Recogn 2010 Aug:3955-3958

Department of Electrical and Computer Engineering, Northeastern University, Boston, MA, USA.

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August 2010

Variations in tumor size and position due to irregular breathing in 4D-CT: a simulation study.

Med Phys 2010 Mar;37(3):1254-60

Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

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March 2010

Four-dimensional measurement of intrafractional respiratory motion of pancreatic tumors using a 256 multi-slice CT scanner.

Radiother Oncol 2009 Aug 9;92(2):231-7. Epub 2009 Feb 9.

Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan.

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August 2009

Experimental evaluation of a robust optimization method for IMRT of moving targets.

Phys Med Biol 2009 May 21;54(9):2901-14. Epub 2009 Apr 21.

Department of Radiation Oncology, Mannheim Medical Center, University of Heidelberg, Mannheim, Germany.

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May 2009

Dosimetric variation due to CT inter-slice spacing in four-dimensional carbon beam lung therapy.

Phys Med Biol 2009 May 6;54(10):3231-46. Epub 2009 May 6.

Research Center for Charged Particle Therapy, Department of Planning and Management, National Institute of Radiological Sciences, Chiba, Japan.

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May 2009

A review of image-guided radiotherapy.

Radiol Phys Technol 2009 Jan 16;2(1):1-12. Epub 2008 Dec 16.

Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA 02114, USA.

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January 2009

Tumor trailing strategy for intensity-modulated radiation therapy of moving targets.

Med Phys 2008 May;35(5):1718-33

Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.

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May 2008

4D-CT lung motion estimation with deformable registration: quantification of motion nonlinearity and hysteresis.

Med Phys 2008 Mar;35(3):1008-18

LIRIS Laboratory, Lyon 2 University, 5 av. P. Mendes-France, 69676 Bron, France.

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March 2008

Evaluation of deformable registration of patient lung 4DCT with subanatomical region segmentations.

Med Phys 2008 Feb;35(2):775-81

Department of Radiation Oncology, Massachusetts General Hospital, 55 Fruit Street, Boston, Massachusetts 02114, USA.

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February 2008

Maximum-likelihood registration of range images with missing data.

IEEE Trans Pattern Anal Mach Intell 2008 Jan;30(1):120-30

Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA 02114, USA.

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January 2008

Multiple template-based fluoroscopic tracking of lung tumor mass without implanted fiducial markers.

Phys Med Biol 2007 Oct 1;52(20):6229-42. Epub 2007 Oct 1.

Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115, USA.

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October 2007

Statistical analysis and correlation discovery of tumor respiratory motion.

Phys Med Biol 2007 Aug 24;52(16):4761-74. Epub 2007 Jul 24.

Computer and Information Technology, Purdue School of Engineering and Technology, Indiana University/PUI, Indianapolis IN 46202, USA.

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August 2007

Towards fluoroscopic respiratory gating for lung tumours without radiopaque markers.

Phys Med Biol 2005 Oct 13;50(19):4481-90. Epub 2005 Sep 13.

Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.

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October 2005

Anatomic feature-based registration for patient set-up in head and neck cancer radiotherapy.

Phys Med Biol 2005 Oct 21;50(19):4667-79. Epub 2005 Sep 21.

Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.

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October 2005

The correlation between internal and external markers for abdominal tumors: implications for respiratory gating.

Int J Radiat Oncol Biol Phys 2005 Apr;61(5):1551-8

Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, USA.

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April 2005

Tracking errors in a prototype real-time tumour tracking system.

Phys Med Biol 2004 Dec;49(23):5347-56

Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA 02114, USA.

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December 2004

A finite state model for respiratory motion analysis in image guided radiation therapy.

Phys Med Biol 2004 Dec;49(23):5357-72

College of Computer and Information Science, Northeastern University, Boston, MA 02115, USA.

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December 2004

Multiview registration of 3D scenes by minimizing error between coordinate frames.

IEEE Trans Pattern Anal Mach Intell 2004 Aug;26(8):1037-50

Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA 02114, USA.

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August 2004

Prediction of respiratory tumour motion for real-time image-guided radiotherapy.

Phys Med Biol 2004 Feb;49(3):425-40

Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.

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February 2004