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Touch M, Bowsher J, Yan S, Yin F. SU-E-I-79: Effect of Number of Pinholes in Onboard Robotic Multi-Pinhole SPECT System. Med Phys 2014. [DOI: 10.1118/1.4888029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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2
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Cui Y, Bowsher J, Yan S, Cai J, Das S, Yin F. SU-C-9A-06: The Impact of CT Image Used for Attenuation Correction in 4D-PET. Med Phys 2014. [DOI: 10.1118/1.4887847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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3
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Cheng L, Bowsher J, Yan S, Yin F. MO-G-17A-02: Computer Simulation Studies for On-Board Functional and Molecular Imaging of the Prostate Using a Robotic Multi-Pinhole SPECT System. Med Phys 2014. [DOI: 10.1118/1.4889204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yan S, Bowsher J, Touch M, Cheng L, Yin F. TH-C-17A-06: A Hardware Implementation and Evaluation of Robotic SPECT: Toward Molecular Imaging Onboard Radiation Therapy Machines. Med Phys 2014. [DOI: 10.1118/1.4889617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zhao F, Bowsher J, Palta M, Czito B, Willett C, Yin F. SU-D-9A-02: Relative Effects of Threshold Choice and Spatial Resolution Modeling On SUV and Volume Quantification in F18-FDG PET Imaging of Anal Cancer Patients. Med Phys 2014. [DOI: 10.1118/1.4887918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Li H, Bowsher J, Jiang Y, Pang T, Wu Q, Yan S, Czito B, Willett C, Yin F. Effects of PET Reconstruction Parameters on Region-of-Interest Contouring by SUV Threshold. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yan S, Bowsher J, Giles W, Ren L, Yin F. A Simulation Study of Treatment Verification Using On-Board Multipinhole SPECT. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yan S, Bowsher J, Yoo S, Yin F. SU-D-500-06: On-Board Robotic Multi-Pinhole SPECT System for Prone Breast Imaging. Med Phys 2013. [DOI: 10.1118/1.4814023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Rankine L, Bowsher J, Brizel D, Yin F, Das S. SU-E-J-200: Impact of FDG-PET/CT Reconstruction Parameters On PET Variability and Treatment Response Assessment. Med Phys 2013. [DOI: 10.1118/1.4814412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Bowsher J, Yan S, Yin F. WE-G-500-09: Robotic Multi-Pinhole Scenarios for SPECT Molecular and Functional Imaging Onboard and in Other Applications. Med Phys 2013. [DOI: 10.1118/1.4815642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Li H, Vergalasova I, Giles W, Bowsher J, Yin F. WE-G-134-04: Four-Dimensional Dual Cone-Beam CT (4D-DCBCT): Preliminary Experimental Results. Med Phys 2013. [DOI: 10.1118/1.4815673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yan S, Bowsher J, Yin F. TH-A-WAB-04: Respiratory Sorted Imaging Using Region-Of-Interest Robotic Multi-Pinhole SPECT System. Med Phys 2013. [DOI: 10.1118/1.4815698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yan S, Bowsher J, Yin F. Functional and Molecular Imaging of the Axilla as the Patient Is in Position for Radiation Therapy Using a Robotic Multi-pinhole SPECT System. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bowsher J, Yan S, Roper J, Giles W, Yin F. TU-A-BRA-01: A Robotic Multi-Pinhole SPECT System for Onboard and Other Region-Of-Interest Imaging. Med Phys 2012. [DOI: 10.1118/1.4735869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chang Z, Wu Q, Adamson J, Ren L, Bowsher J, Yan H, Thomas A, Yin F. SU-E-T-104: Commissioning and Dosimetric Characteristics of TrueBeam System: Composite Data of Three TrueBeam Machines. Med Phys 2012; 39:3726. [PMID: 28517167 DOI: 10.1118/1.4735162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
INTRODUCTION A TrueBeam linear accelerator (TB-LINAC) is designed to deliver standard flattened and flattening-filter-free (FFF) beams. In our institute, three TB-LINAC units are installed. In this work, composite data of the three units and multi-unit comparison are presented. METHODS Each TB-LINAC can deliver photon beams from 4MV to 15MV, electron beams from 6MeV to 22MeV, and 6MV-FFF and 10MV-FFF. Dosimetric characteristics are systematically measured for commissioning including percent depth dose (PDD), beam profile, relative scatter factor, dynamic leaf shift, output factor and MLC leakage. Critic considerations of Pion of FFF photon beams and dosimetric penumbra are investigated. RESULTS All measured PDDs and profiles of photon and electron matched well across the three machines. Beam data were quantitatively compared and combined through average to yield composite beam data. The discrepancies among the machines were quantified using standard deviation (SD). For example, the mean SD of the PDDs among the three units is 0.12%, and the mean SD of the profiles is 0.40% for 10MV-FFF open fields. The variations of Pion of the chamber CC13 is 1.2±0.1% under 6MV-FFF and 2.0±0.5% from dmax to the 18cm-off-axis point at 35cm depth under 40×40cm2 . The measured relative output factors range from 0.866 to 1.141 with the mean discrepancy of 0.06±0.04% among the three units. The measured wedge factors range from 0.863 to 1.254 with the mean overall discrepancy of 0.04±0.04%. The mean MLC transmission and dynamic leaf shift were measured from 1.0% to 1.5% and from 0.77mm to 0.96 mm from 4MV to 15MV. The mean penumbra of various photon beams are measured from 5.88±0.09mm to 5.99±0.13mm from 4MV to 15MV at 10cm depth of 10×10 cm2 . CONCLUSIONS Dosimetric data demonstrated that the three units could and had been matched well. The systematically measured data might be useful for future reference.
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Affiliation(s)
- Z Chang
- Duke University Medical Center, Durham, NC
| | - Q Wu
- Duke University Medical Center, Durham, NC
| | - J Adamson
- Duke University Medical Center, Durham, NC
| | - L Ren
- Duke University Medical Center, Durham, NC
| | - J Bowsher
- Duke University Medical Center, Durham, NC
| | - H Yan
- Duke University Medical Center, Durham, NC
| | - A Thomas
- Duke University Medical Center, Durham, NC
| | - F Yin
- Duke University Medical Center, Durham, NC
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Yan S, Bowsher J, Giles W, Yin F. TH-E-BRA-01: A Line-Source Method for Aligning Onboard-Robotic-Pinhole and Other SPECT-Pinhole Systems. Med Phys 2012. [DOI: 10.1118/1.4736362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Li H, Giles W, Ren L, Bowsher J, Yin F. TH-E-218-01: Dual-Energy CBCT Imaging for Metal Artifact Reduction and Contrast Enhancement. Med Phys 2012. [DOI: 10.1118/1.4736387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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McGurk R, Bowsher J, Smith V, Lee J, Das S. MO-G-BRA-01: Optimal Image Filtration Strategies for PET Segmentation. Med Phys 2012. [DOI: 10.1118/1.4735846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chang Z, Wu Q, Adamson J, Ren L, Bowsher J, Yan H, Thomas A, Yin F. SU-E-T-74: Assessing Effects of Ion Collection Efficiency in Flattening Filter-Free (FFF) Beams on Three TrueBeam Machines. Med Phys 2012. [DOI: 10.1118/1.4735130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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21
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Giles W, Bowsher J, Li H, Yin F. TU-A-213CD-04: A Novel Technique for Estimating and Correcting Cross-Scatter in Dual-Source CBCT. Med Phys 2012. [DOI: 10.1118/1.4735883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Li H, Giles W, Roper J, Bowsher J, Yin F. SU-C-214-06: Noise Power Properties of a Dual-Detector Cone-Beam CT System. Med Phys 2011. [DOI: 10.1118/1.3611484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Roper J, Bowsher J, Yin F. SU-E-J-180: SPECT-Based Target Localization: Comparison between Full-Size and Compact Detectors. Med Phys 2011. [DOI: 10.1118/1.3611948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kishore M, OˈDaniel J, Bowsher J, Yin F. SU-E-T-98: VMAT Quality Assurance: Improving the Angular Correction Factors for Ion Chamber Arrays. Med Phys 2011. [DOI: 10.1118/1.3612049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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26
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Giles W, Bowsher J, Yin F. Reduced Cross Scatter in Dual-source Cone-Beam CT by Asynchronous Projection Acquisition. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Giles W, Bowsher J, Yin F. SU-GG-J-80: Characterization of Cross Scatter in Dual Source CBCT. Med Phys 2010. [DOI: 10.1118/1.3468304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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28
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Roper J, Wilson J, Bowsher J, Turkington T, Yin F. SU-DD-A3-05: On-Board SPECT: Localization Study Using Scanner-Acquired Data. Med Phys 2010. [DOI: 10.1118/1.3467998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Thomas A, Bowsher J, Roper J, Oldham M. TU-E-201C-08: A Comprehensive Method for Optical - Emission Computed Tomography. Med Phys 2010. [DOI: 10.1118/1.3469310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Li H, Giles W, Roper J, Bowsher J, Yin F. TU-C-204B-06: Performance Evaluation of a Dual Cone-Beam CT (Dual CBCT) System. Med Phys 2010. [DOI: 10.1118/1.3469229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Giles W, Bowsher J, Yin F. TU-A-204B-04: A Technique to Correct Crescent Artifacts in On-Board CBCT. Med Phys 2010. [DOI: 10.1118/1.3469171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zhuang T, Li H, Bowsher J, Wang Z, Yin F. Quantitative Study of Geometrical Distortion in Cone-beam CT Images Reconstructed using FDK Algorithm. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bowsher J, Giles W, Roper J, Ren L, Yin F. SU-FF-J-09: Limited-Angle Imaging for Target Positioning Using Orthogonal Conebeam X-Ray Systems. Med Phys 2009. [DOI: 10.1118/1.3181301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chang Z, Wang Z, Wu Q, Bowsher J, Yoo S, Yin F. SU-FF-T-309: Quality Assurance for Imaging Guided Stereotactic RadioSurgery with Novalis Tx™ System. Med Phys 2009. [DOI: 10.1118/1.3181789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Giles W, Bowsher J, Roper J, Yin F. SU-FF-J-02: Impact of Cross Scatter On CNR in Fluoroscopic Images Taken with a Dual Flat Panel X-Ray Imaging System. Med Phys 2009. [DOI: 10.1118/1.3181294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Li H, Bowsher J, Giles W, Roper J, Li T, Yin F. SU-FF-T-322: Geometric Calibration of a Dual Cone Beam CT System with Large Flat Panel Detectors. Med Phys 2009. [DOI: 10.1118/1.3181802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim E, Bowsher J, Thomas AS, Sakhalkar H, Dewhirst M, Oldham M. Improving the quantitative accuracy of optical-emission computed tomography by incorporating an attenuation correction: application to HIF1 imaging. Phys Med Biol 2008; 53:5371-83. [PMID: 18765891 DOI: 10.1088/0031-9155/53/19/007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Optical computed tomography (optical-CT) and optical-emission computed tomography (optical-ECT) are new techniques for imaging the 3D structure and function (including gene expression) of whole unsectioned tissue samples. This work presents a method of improving the quantitative accuracy of optical-ECT by correcting for the 'self'-attenuation of photons emitted within the sample. The correction is analogous to a method commonly applied in single-photon-emission computed tomography reconstruction. The performance of the correction method was investigated by application to a transparent cylindrical gelatin phantom, containing a known distribution of attenuation (a central ink-doped gelatine core) and a known distribution of fluorescing fibres. Attenuation corrected and uncorrected optical-ECT images were reconstructed on the phantom to enable an evaluation of the effectiveness of the correction. Significant attenuation artefacts were observed in the uncorrected images where the central fibre appeared approximately 24% less intense due to greater attenuation from the surrounding ink-doped gelatin. This artefact was almost completely removed in the attenuation-corrected image, where the central fibre was within approximately 4% of the others. The successful phantom test enabled application of attenuation correction to optical-ECT images of an unsectioned human breast xenograft tumour grown subcutaneously on the hind leg of a nude mouse. This tumour cell line had been genetically labelled (pre-implantation) with fluorescent reporter genes such that all viable tumour cells expressed constitutive red fluorescent protein and hypoxia-inducible factor 1 transcription-produced green fluorescent protein. In addition to the fluorescent reporter labelling of gene expression, the tumour microvasculature was labelled by a light-absorbing vasculature contrast agent delivered in vivo by tail-vein injection. Optical-CT transmission images yielded high-resolution 3D images of the absorbing contrast agent, and revealed highly inhomogeneous vasculature perfusion within the tumour. Optical-ECT emission images yielded high-resolution 3D images of the fluorescent protein distribution in the tumour. Attenuation-uncorrected optical-ECT images showed clear loss of signal in regions of high attenuation, including regions of high perfusion, where attenuation is increased by increased vascular ink stain. Application of attenuation correction showed significant changes in an apparent expression of fluorescent proteins, confirming the importance of the attenuation correction. In conclusion, this work presents the first development and application of an attenuation correction for optical-ECT imaging. The results suggest that successful attenuation correction for optical-ECT is feasible and is essential for quantitatively accurate optical-ECT imaging.
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Affiliation(s)
- E Kim
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
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Roper J, Manzoor A, Bowsher J, Yin F, Zhou S, Wong T, Borges-Neto S, Hubbs J, Demirci S, Marks L. Are Post-RT Cardiac Perfusion Defects Due to Cardiac Toxicity, or are they Artifacts from Attenuation Changes in Surrounding Soft Tissues? Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Roper J, Bowsher J, Yin F. SU-GG-J-156: Quantitative Analysis of Onboard SPECT Imaging Using Compact Gamma Cameras. Med Phys 2008. [DOI: 10.1118/1.2961705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Song H, Bowsher J, Yin F. SU-GG-T-38: Tracking of Brachytherapy Source Position Using Emission Imaging. Med Phys 2008. [DOI: 10.1118/1.2961788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim E, Bowsher J, Sakhalkar H, Dewhirst M, Oldham M. TU-FF-A4-03: Improving the Accuracy of Optical-Emission-CT Imaging Through Application of a Non-Uniform Attenuation Correction. Med Phys 2008. [DOI: 10.1118/1.2962658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Park H, Bowsher J, Colsher J, Stern E, Turkington T. SU-GG-I-49: Iterative Reconstruction of Slow Rotation CT Data with Projection Object Masks to Decrease Motion Effects. Med Phys 2008. [DOI: 10.1118/1.2961447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Bowsher J, Song H, Yin FF. SU-FF-J-24: Toward Real-Time Tracking of HDR Source Position Using Emission Imaging with a Collimator and Flat-Panel Detector. Med Phys 2007. [DOI: 10.1118/1.2760529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Roper J, Bowsher J, Yin F. SU-EE-A3-06: Onboard SPECT: Functional-Image-Based Target Localization. Med Phys 2007. [DOI: 10.1118/1.2760363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tornai M, Madhav P, Crotty D, Cutler S, Perez K, McKinley R, Bowsher J. WE-D-L100J-08: Application of Volumetric Molecular Breast Imaging with a Dedicated SPECT-CT Mammotomograph. Med Phys 2007. [DOI: 10.1118/1.2761544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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46
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Bowsher J, Yin F, Chawla A, Greer K, Song H, Samei E, Willett C. TH-D-M100F-01: An Evaluation of Noise in Radiotracer Emission Imaging Using Flat-Panel Detectors. Med Phys 2007. [DOI: 10.1118/1.2761701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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47
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Bowsher J, Yin F, Greer K, Jaszczak R, Samei E, Willett C. TU-FF-A3-02: Preliminary Investigations Into Combined CT/SPECT Imaging Onboard Therapy Machines. Med Phys 2006. [DOI: 10.1118/1.2241651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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48
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Song H, Wu Q, Bowsher J, Yin F. SU-FF-T-263: Imaging with Brachytherapy Sources. Med Phys 2006. [DOI: 10.1118/1.2241183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Pain CC, Eaton MD, Bowsher J, Smedley-Stevenson RP, Umpleby AP, de Oliveira CRE, Goddard AJH. Finite Element Based Riemann Solvers for Time-Dependent and Steady-State Radiation Transport. ACTA ACUST UNITED AC 2003. [DOI: 10.1081/tt-120025073] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Affiliation(s)
- J Bowsher
- University Dental Hospital Trust, Cardiff
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