Selenium flat panel detector-based volume tomographic angiography imaging: Phantom studies

被引：22

作者：

Ning, RL ^{[1
]}

Lee, D ^{[1
]}

Wang, XH ^{[1
]}

Zhang, Y ^{[1
]}

Conover, D ^{[1
]}

Zhang, DH ^{[1
]}

Williams, C ^{[1
]}

机构：

[1] Univ Rochester, Med Ctr, Dept Radiol, Rochester, NY 14642 USA

来源：

PHYSICS OF MEDICAL IMAGING | 1998年 / 3336卷

关键词：

selenium thin film transistor array; flat panel detector; volume tomographic digital angiography;

D O I：

10.1117/12.317031

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A Selenium thin film transistor (STFT) array-based rotational volume tomographic digital angiography (VTDA) imaging system has been constructed. The system consists of an x-ray tube and a STFT detector that are separately mounted on a gantry. This system uses the STFT array as a two-dimensional (2D) detector so that a set of 2D projections can be acquired for a direct three-dimensional (3D) reconstruction. This paper presents the results of the preliminary phantom studies using the STFT-based volume tomographic angiography imaging system. This research work demonstrates through phantom studies that the STFT array introduces no distortion and the STFT-based VTDA imaging system has a higher spatial resolution and better contrast resolution than an image intensifier(II)-based system.

引用

页码：316 / 324

页数：9