Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Analytical, Diagnostic and Therapeutic Techniques and Equipment (2)
- Biomedical Engineering and Bioengineering (1)
- Diagnosis (1)
- Engineering (1)
- Gastroenterology (1)
-
- Medical Biophysics (1)
- Medical Sciences (1)
- Medical Specialties (1)
- Other Analytical, Diagnostic and Therapeutic Techniques and Equipment (1)
- Other Biomedical Engineering and Bioengineering (1)
- Other Medical Sciences (1)
- Other Physics (1)
- Physical Sciences and Mathematics (1)
- Physics (1)
- Radiology (1)
Articles 1 - 3 of 3
Full-Text Articles in Medicine and Health Sciences
Development And Implementation Of A Dynamic Heterogeneous Proton Equivalent Anthropomorphic Thorax Phantom For The Assessment Of Scanned Proton Beam Therapy, James L. Neihart
Development And Implementation Of A Dynamic Heterogeneous Proton Equivalent Anthropomorphic Thorax Phantom For The Assessment Of Scanned Proton Beam Therapy, James L. Neihart
Dissertations & Theses (Open Access)
DEVELOPMENT AND IMPLEMENTATION OF A DYNAMIC HETEROGENEOUS PROTON EQUIVALENT ANTHROPOMORPHIC THORAX PHANTOM FOR THE ASSESSMENT OF SCANNED PROTON BEAM THERAPY
by
James Leroy Neihart, B.S.
APPROVED:
______________________________
David Followill, Ph.D.
______________________________
Peter Balter, Ph.D.
______________________________
Narayan Sahoo, Ph.D.
______________________________
Kenneth Hess, Ph.D.
______________________________
Paige Summers, M.S.
APPROVED:
____________________________
Dean, The University of Texas
Graduate School of Biomedical Sciences at Houston
DEVELOPMENT AND IMPLEMENTATION OF A DYNAMIC HETEROGENEOUS PROTON EQUIVALENT ANTHROPOMORPHIC THORAX PHANTOM FOR THE ASSESSMENT OF SCANNED PROTON BEAM THERAPY
A
THESIS
Presented to the Faculty of
The University of Texas
Health Science Center at Houston
and
The University of …
In-Vivo Ct Dosimetry During Virtual Colonoscopy, Jonathon W. Mueller
In-Vivo Ct Dosimetry During Virtual Colonoscopy, Jonathon W. Mueller
Dissertations & Theses (Open Access)
Virtual colonoscopy (VC) is a minimally invasive means for identifying colorectal polyps and colorectal lesions by insufflating a patient’s bowel, applying contrast agent via rectal catheter, and performing multi-detector computed tomography (MDCT) scans. The technique is recommended for colonic health screening by the American Cancer Society but not funded by the Centers for Medicare and Medicaid Services (CMS) partially because of potential risks from radiation exposure. To date, no in‐vivo organ dose measurements have been performed for MDCT scans; thus, the accuracy of any current dose estimates is currently unknown.
In this study, two TLDs were affixed to the inner …
Commissioning An Anthropomorphic Spine And Lung Phantom For Remote Dose Verification Of Institutions Participating In Rtog 0631, Douglas F. Caruthers
Commissioning An Anthropomorphic Spine And Lung Phantom For Remote Dose Verification Of Institutions Participating In Rtog 0631, Douglas F. Caruthers
Dissertations & Theses (Open Access)
The RPC developed a new phantom to ensure comparable and consistent radiation administration in spinal radiosurgery clinical trials. This study assessed the phantom’s dosimetric and anatomic utility. The ‘spine phantom’ is a water filled thorax with anatomy encountered in spinal radiosurgery: target volume, vertebral column, spinal canal, esophagus, heart, and lungs. The dose to the target volume was measured with axial and sagittal planes of radiochromic film and thermoluminescent dosimeters (TLD). The dose distributions were measured with the radiochromic film calibrated to the absolute dose measured by the TLD. Four irradiations were administered: a four angle box plan, a seven …