A comparison of the physical imaging properties of Fuji ST-V, ST-VA, and ST-VN computed radiography image plates

被引：26

作者：

Kengyelics, SM ^{[1
]}

Davies, AG ^{[1
]}

Cowen, AR ^{[1
]}

机构：

[1] Gen Infirm, Dept Phys Med, FAXIL, Leeds LS1 3EX, W Yorkshire, England

来源：

MEDICAL PHYSICS | 1998年 / 25卷 / 11期

关键词：

digital radiography; computed radiography; modulation transfer function; Wiener spectrum; detective quantum efficiency;

D O I：

10.1118/1.598412

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The physical imaging performance of ST-V, ST-VA, and ST-VN computed radiography image plates, read with a Philips AC3 acquisition system, was investigated at 70 kVp with 0.5 mm of copper beam filtration for four different entrance air kerma values: 0.5, 2.6, 26, and 260 mu Gy. Measurements included characteristic response, presampling-modulation transfer function, and Wiener spectrum analysis for (18 x 24) cm(2) image plates, sampled at 10 pixels/mm. These results were used to calculate DQE spectral descriptions of system performance. ST-VN image plates exhibited a slightly superior DQE performance for the two lower entrance air kerma values investigated. (C) 1998 American Association of Physicists in Medicine. [S0094-2405(98)00611-7].

引用

页码：2163 / 2169

页数：7

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