SELF-MASKING SUBTRACTION TOMOSYNTHESIS
SELF-MASKING SUBTRACTION TOMOSYNTHESIS
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DOI：
10.1148/radiology.150.1.6359264
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发表时间：
1984-01-01
期刊：
影响因子：
19.7
通讯作者：
LAKSHMINARAYANAN, AV
中科院分区：
文献类型：
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作者：
CHAKRABORTY, DP;YESTER, MV;LAKSHMINARAYANAN, AV
对自掩模减影断层合成（SST）的图像质量和剂量节省进行了测试，SST将数字断层合成与模糊自掩模减影相结合。以中等剂量节省获得头部模型内耳的高质量图像。虽然他们采取了线性运动，他们没有表现出条纹由于偏离支点的对象，这是传统的线性断层扫描的特点。SST可以将内耳检查中的患者剂量降低至少12倍，并且机械方面可以通过对现有仪器进行适度修改来实现。
The image quality and dose savings of self-masking subtraction tomosynthesis (SST), which combines digital tomosynthesis with subtraction of a blurred self-mask, was tested. High-quality images of the inner ear of a head phantom were obtained at moderate dose savings. Although they were taken with linear motion, they did not exhibit the streaking due to off-fulcrum objects that is characteristic of conventional linear tomography. SST could reduce patient dose by a factor of at least 12 in examinations of the inner ear, and the mechanical aspects can be implemented with moderate modifications of existing instrumentation.