کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
718267 892257 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A Reduced Radiation Dose CTA
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
A Reduced Radiation Dose CTA
چکیده انگلیسی

Computed Tomography Angiography (CTA) has become an important tool in diagnosing and evaluating vascular diseases; however, its usage has been limited by the radiation concern. In this paper, we propose a (radiation) dose reduction approach along with the adaptive bolus chasing CTA techniques, which are capable of tracking the contrast bolus peak during the CTA scan. By modulating the tube current (and collimator width) online, we can reduce the total radiation dose and maintain the contrast to noise ratio (CNR) level of the blood vessel. Numerical experiments results show that the effective radiation dose can be reduced about 39% by using the proposed dose reduction method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: IFAC Proceedings Volumes - Volume 45, Issue 18, 2012, Pages 184-189