نتایج جستجو برای: kilovoltage

تعداد نتایج: 427  

2007
James G. Mechalakos Margie A. Hunt Nancy Y. Lee Linda X. Hong C. Clifton Ling Howard I. Amols

The purpose of the present study was to use a kilovoltage imaging device to measure interfractional and intrafractional setup deviations in patients with head-and-neck or brain cancers receiving intensity-modulated radiotherapy (IMRT) treatment. Before and after IMRT treatment, approximately 3 times weekly, 7 patients were imaged using the Varian On-Board Imager (OBI: Varian Medical Systems, Pa...

2009
Raj Varadhan Susanta K Hui Sarah Way Kurt Nisi

The primary application of Image Guided Radiotherapy (IGRT) in the treatment of localized prostate cancer has been to assist precise dose delivery to the tumor. With the ability to use in-room Computed Tomography (CT) imaging modalities, the prostate, bladder and rectum can be imaged before each treatment and the actual doses delivered to these organs can be tracked using anatomy of the day. Th...

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