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Full-Text Articles in Radiology
Development Of 3d-Printed Patient Specific Bolus For Clinical Use In Total Scalp Irradiation, Garrett Baltz
Development Of 3d-Printed Patient Specific Bolus For Clinical Use In Total Scalp Irradiation, Garrett Baltz
Dissertations & Theses (Open Access)
Total scalp irradiation (TSI) is a specialized radiation therapy technique that aims to deliver a uniform dose to the entire scalp. Original electron-based TSI techniques had limited homogeneity due to hot and cold spots created at field junctions due to the multiple matched fields that were required to treat the entire scalp. The transition to photon volumetric-modulated arc therapy based TSI techniques has improved homogeneity, to the point where non-conformal bolus is now a limiting factor. Bolus is required to build-up full dose to the scalp surface in total scalp irradiation. Creating bolus that is conformal to the scalp is …
Lung Cancer Epidemiology – A Global View, Patricia Tai, Edward Yu, Rashmi Koul, Arbind Dubey
Lung Cancer Epidemiology – A Global View, Patricia Tai, Edward Yu, Rashmi Koul, Arbind Dubey
Edward Yu
Smoking, air pollution and radon exposure are causally related to lung cancer. This review analyzes trends of smoking habits by age, sex and ethnicity and their correlation with incidence and mortality of lung cancer. Unfortunately the use of tobacco by adolescents is on the rise. Most developed countries are still showing the rising trend of mortality in female smokers. In Asia, cigarette smoking has become a major health risk with one in three of all cigarettes in the world today are smoked in China. Estimated one hundred million young ( < 29 years old) Chinese smokers will eventually die from lung …
Thoracic Radiotherapy Treatment Planning With Cine Pet/Ct, Adam C. Riegel
Thoracic Radiotherapy Treatment Planning With Cine Pet/Ct, Adam C. Riegel
Dissertations & Theses (Open Access)
Purpose: Respiratory motion causes substantial uncertainty in radiotherapy treatment planning. Four-dimensional computed tomography (4D-CT) is a useful tool to image tumor motion during normal respiration. Treatment margins can be reduced by targeting the motion path of the tumor. The expense and complexity of 4D-CT, however, may be cost-prohibitive at some facilities. We developed an image processing technique to produce images from cine CT that contain significant motion information without 4D-CT. The purpose of this work was to compare cine CT and 4D-CT for the purposes of target delineation and dose calculation, and to explore the role of PET in target …