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下肢动脉病变能谱CT血管成像图像后处理中最佳单能量图像的选择 被引量:13

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摘要 随着我国老龄化进程的加快和糖尿病发病率的上升,下肢动脉病变(peripheralartefialdisease,PAD)的发病率日趋升高,约12%的老年人罹患此病。MSCT已经成为PAD筛查和诊断的主要方法。图像后处理始终是MSCTA的重要环节,而提高下肢动脉CTA图像质量的关键是增加下肢动脉与伴行静脉的对比度。虽然增加对比剂的剂量和注射速率可提高下肢动脉的对比度,但同时,应用混合能量的传统x线cT会增加硬化伪影。
出处 《中华放射学杂志》 CAS CSCD 北大核心 2013年第3期269-272,共4页 Chinese Journal of Radiology
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