Zobrazeno 1 - 10
of 12
pro vyhledávání: '"William P Donahue"'
Publikováno v:
Journal of applied clinical medical physicsREFERENCES.
Technological advancements have made it possible to improve patient outcomes in radiotherapy, sparing both normal tissues and increasing tumour control. However, these advancements have resulted in an increase in the number of software systems used,
Publikováno v:
Physics in medicine and biology. 66(22)
Anthropomorphic phantoms used for radiation dose measurements are designed to mimic human tissue in shape, size, and tissue composition. Reference phantoms are widely available and are sufficiently similar to many, but not all, human subjects. 3D pri
Publikováno v:
Physics in Medicine & Biology. 67:125019
Objective. Patients who receive proton beam therapy are exposed to unwanted stray neutrons. Stray radiations increase the risk of late effects in normal tissues, such as second cancers and cataracts, and may cause implanted devices such as pacemakers
Autor:
William P Donahue, Wayne D. Newhauser
Publikováno v:
Biomedical physicsengineering express. 6(5)
The human body contains approximately 20 billion blood vessels, which transport nutrients, oxygen, immune cells, and signals throughout the body. The brain's vasculature includes up to 9 billion of these vessels to support cognition, motor processes,
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
Publikováno v:
Physics in Medicine and Biology. 61:6570-6584
Many different approaches exist to calculate stopping power and range of protons and heavy charged particles. These methods may be broadly categorized as physically complete theories (widely applicable and complex) or semi-empirical approaches (narro
Publikováno v:
Biomedical Physics & Engineering Express. 6:055027
Vasculature is necessary to the healthy function of most tissues. In radiation therapy, injury of the vasculature can have both beneficial and detrimental effects, such as tumor starvation, cardiac fibrosis, and white-matter necrosis. These effects a
Autor:
Wayne D. Newhauser, Juana Moreno, William P Donahue, Vincent L Wilson, Harris Wong, Joyoni Dey
Publikováno v:
Biomedical Physics & Engineering Express. 6:055026
The human body contains approximately 20 billion individual blood vessels that deliver nutrients and oxygen to tissues. While blood flow is a well-developed field of research, no previous studies have calculated the blood flow rates through more than
Autor:
Wayne D. Newhauser, William P Donahue, Lydia J. Wilson, Christopher W. Schneider, Suman Shrestha
Publikováno v:
Radiation protection dosimetry. 180(1-4)
External-beam radiation therapy is safe, effective and widely used to treat cancer. With 5-year cancer survival for adults above 70%, increasingly research is focusing on quantifying and reducing treatment-related morbidity. Reducing exposures to hea
Publikováno v:
Medical physics. 39(6Part11)
Purpose: To investigate the utility and accuracy of high‐sensitivity TLD for dosimetric characterization of low‐energy brachytherapy sources. Methods: One hundred high‐sensitivity (TLD‐100H) and 100 normal‐sensitivity (TLD‐100) TLDs were