Comparison of flat-panel detector and image-intensifier detector for cone-beam CT

被引：59

作者：

Baba, R ^{[1
]}

Konno, Y ^{[1
]}

Ueda, K ^{[1
]}

Ikeda, S ^{[1
]}

机构：

[1] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 1858601, Japan

来源：

COMPUTERIZED MEDICAL IMAGING AND GRAPHICS | 2002年 / 26卷 / 03期

关键词：

cone-beam computed tomography; flat-panel detector; image intensifier; angiography; three-dimensional imaging;

D O I：

10.1016/S0895-6111(02)00008-3

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We evaluated a flat-panel detector (FPD) (scintillator screen and a-Si photo-sensor array) for use in a cone-beam computed tomography (CT) detector and compared it with an image-intensifier detector (111)). The FPD cone-beam CT system has a higher spatial resolution than the IID system. At equal pixel sizes, the standard deviation of noise intensity of the FPD system is equal to that of the IID system. However, the circuit noise of the FPD must be reduced, especially at low doses. Our evaluations show that the FPD system has a strong potential for use as a cone-beam CT detector because of high-spatial resolution. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：153 / 158

页数：6

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