Digital breast tomosynthesis using an amorphous selenium flat panel detector

被引：84

作者：

Bissonnette, M ^{[1
]}

Hansroul, M ^{[1
]}

Masson, E ^{[1
]}

Savard, S ^{[1
]}

Cadieux, S ^{[1
]}

Warmoes, P ^{[1
]}

Gravel, D ^{[1
]}

Agopyan, J ^{[1
]}

Polischuk, B ^{[1
]}

Haerer, W ^{[1
]}

Mertelmeier, T ^{[1
]}

Lo, JY ^{[1
]}

Chen, Y ^{[1
]}

Dobbins, JT ^{[1
]}

Jesneck, JL ^{[1
]}

Singh, S ^{[1
]}

机构：

[1] Anrad Corp, St Laurent, PQ H4R 2P1, Canada

来源：

Medical Imaging 2005: Physics of Medical Imaging, Pts 1 and 2 | 2005年 / 5745卷

关键词：

tomosynthesis; digital mammography; flat panel detector; selenium detector; filtered backprojection; reconstruction; DQE; MTF; NPS;

D O I：

10.1117/12.601622

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A prototype breast tomosynthesis system(**) has been developed, allowing a total angular view of +/- 25 degrees. The detector used in this system is an amorphous selenium direct-conversion digital flat-panel detector suitable for digital tomosynthesis. The system is equipped with various readout sequences to allow the investigation of different tomosynthetic data acquisition modes. In this paper, we will present basic physical properties - such as MTF, NPS, and DQE - measured for the full resolution mode and a binned readout mode of the detector. From the measured projections, slices are reconstructed employing a special version of filtered backprojection algorithm. In a phantom study, we compare binned and full resolution acquisition modes with respect to image quality. Under the condition of same dose, we investigate the impact of the number of views on artifacts. Finally, we show tomosynthesis images reconstructed from first clinical data.

引用

页码：529 / 540

页数：12

共 16 条

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