کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8240490 | 1533147 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Verification of In-Treatment Tumor Position Using Kilovoltage Cone-Beam Computed Tomography: A Preliminary Study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Three-dimensional tumor position during rotational dose delivery was evaluated by acquiring in-treatment kilovoltage (kV) cone-beam CT (CBCT) to ensure treatment quality. The CBCT projection data of a phantom were acquired during rotational megavoltage (MV) dose delivery up to 6 Gy to evaluate image quality under MV beam irradiation. A lung tumor patient was treated with a total dose of 48 Gy in four fractions, each fraction including seven coplanar and noncoplanar beams, as well as a full-angle rotational beam. Tumor registration was performed between a planning CT image and a CBCT image immediately after patient setup. The patient couch was adjusted according to the registration results, and then the registration was repeated three times: immediately before treatment, during treatment, and immediately after treatment. The phantom image quality of the kV CBCT was not visually degraded up to the rotational MV dose of 6 Gy. Tumor position during rotational dose delivery was verified for the first time using kV CBCT.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Radiation Oncology*Biology*Physics - Volume 69, Issue 4, 15 November 2007, Pages 970-973
Journal: International Journal of Radiation Oncology*Biology*Physics - Volume 69, Issue 4, 15 November 2007, Pages 970-973
نویسندگان
Keiichi M.D., Ph.D., Hideomi M.D., Ph.D., Kenshiro M.D., Ph.D., Hiroshi M.D., Ph.D., Atsuro M.D., Ph.D., Naoki M.D., Kuni M.D., Ph.D., Shigeki R.T.T., Takashi R.T.T., Takashi R.T.T., Kiyoshi Ph.D.,