Projection-based bolus detection for computed tomographic angiography.
Projection-based bolus detection for computed tomographic angiography.
复制标题
用于计算机断层扫描血管造影的基于投影的推注检测。
DOI：
10.1097/01.rct.0000230000.08027.ad
复制
发表时间：
2006
影响因子：
1.3
通讯作者：
Wang,Ge
中科院分区：
文献类型：
--
作者：
Lu,Donghui;Bai,Erwei;Liu,Jie;Yu,Hengyong;Wei,Yuchuan;Cai,Zhijun;Sharafuddin,MelhemJ;Golzarian,Jafar;Stolpen,Alan;Saba,Osama;Vannier,Michael;Wang,Ge
Computed tomographic (CT) angiography is important for imaging studies on cardiovascular structures, peripheral vessels, and solid organs. In practice, a CT angiography scan is triggered by the bolus arrival at a prespecified anatomical location, which is determined using CT fluoroscopy. In this article, we propose a projection-based method adapted from the Grangeat formula to detect the bolus arrival. Then, we evaluate our new method in numerical and animal studies. Our results indicate that this method allows significantly better temporal resolution and is computationally more efficient, as compared with the image-based methods.From the* CT/Micro-CT Laboratory, Department of Radiology, and† Systems Control Laboratory, Department of Electrical and Computer Engineering, University of Iowa, Iowa City, IA;‡ Department of Electrical and Information Engineering, Shanghai University, Shanghai, China; § SIEMENS Medical Solutions, Malvern, PA; and∥ Department of Radiology, University of Chicago, IL.
