CT vs. VolumeScope: image quality and dose comparison

被引：0
|
作者：
Vasiliev, VN [1 ]
Gamaliy, AF [1 ]
Zaytsev, MY [1 ]
Zaytseva, KV [1 ]
机构：
[1] Russian Sci Ctr Roentgenol & Radiol, Moscow 117997, Russia
来源：
X-Ray and Neutron Capillary Optics II | 2005年 / 5943卷
关键词：
VolumeScope; absorbed dose; digital filter; image quality; anthropomorphic phantom; 3D visualization;
D O I：
10.1117/12.637996
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
A number of examinations were performed on the VolumeScope Compton scatter tomographic device and a CT scanner (Siemens Somatom Plus 4) using an anthropomorphic tissue-equivalent heterogeneous phantom simulating a human body. Three main parts of the phantom were under examination: head, thorax and pelvis. An absorbed dose in the phantom was measured by LiF thermoluminescent detectors. The CT scanner demonstrated better space resolution in cross-plane and lower statistical noise. On the other hand, absorbed dose due to CT scanning is about 20 times higher at the same points of measurement. Examples of reconstructed images are presented.
引用
收藏
页码：248 / 254
页数：7
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