نتایج جستجو برای: neck contouring
تعداد نتایج: 88594 فیلتر نتایج به سال:
PURPOSE To define a male and female pelvic normal tissue contouring atlas for Radiation Therapy Oncology Group (RTOG) trials. METHODS AND MATERIALS One male pelvis computed tomography (CT) data set and one female pelvis CT data set were shared via the Image-Guided Therapy QA Center. A total of 16 radiation oncologists participated. The following organs at risk were contoured in both CT sets: ...
Hepatocellular carcinoma (HCC) is a leading cause of cancer death in China and around the world. Tumoricidal doses of modern radiation therapy (RT) can now be safely delivered with excellent local control and minimal toxicity. Delivering adequate doses of radiation to the primary tumor, while preserving adjacent healthy organs, depends on accurate target identification. In recent years, differe...
To achieve high quality and productivity, it is important to know what is the maximum feed rate while meeting the required part accuracy. Laser interferometers and telescoping ballbars have been used for the positioning and circular contouring measurement. However, a conventional laser is limited by the line-of-sight, and cannot tolerate large lateral deviations. A telescoping ballbar is limite...
BACKGROUND AND PURPOSE The heart is a complex anatomical organ and contouring the cardiac substructures is challenging. This study presents a reproducible method for contouring left ventricular and coronary arterial segments on radiotherapy CT-planning scans. MATERIAL AND METHODS Segments were defined from cardiology models and agreed by two cardiologists. Reference atlas contours were deline...
INTRODUCTION: Deoxycholic acid currently approved only for minimally invasive treatment of submental fat. The effects of deoxycholic acid on fat need not be limited to submental fat and represents an opportunity to treat undesired fat in many other body parts.1 Injection lipolysis has the potential risks of skin loss/necrosis, hyperpigmentation, neovascular response, and contour irregularities....
Pulmonary emboli are rare, yet serious, complications of body contouring surgery. When they occur, they more often follow as complications of long, invasive procedures in adults. The present report details a case of bilateral pulmonary emboli in an obese 15-year-old boy with hypogonadism undergoing bilateral mastectomy for gynecomastia. The diagnosis of bilateral pulmonary emboli was made on th...
Background Myocardial oedema is a consequence of injury during ST segment elevation myocardial infarction (STEMI). T2 weighted short tau inversion recovery (T2w STIR) is widely used for oedema assessment on CMR. No consensus exits for which threshold/ contouring method should be used for the quantification of the area of myocardial oedema as a surrogate endpoint in clinical trials. This study i...
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