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16层螺旋CT低剂量扫描及重建在诊断肺动脉栓塞中的价值

Chinese Journal of Rural Medicine and Pharmacy(2015)

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Abstract
目的:探讨16层螺旋CT 低剂量扫描及重建在诊断肺动脉栓塞中的价值。方法选择临床确诊的肺动脉栓塞患者78例行肺动脉增强扫描,随机分为常规剂量组46例和低剂量组32例。常规剂量组设定管电流为150~250mAs,低剂量组为50mAs,进行 CT 扫描及重建技术。结果肺动脉栓塞阳性:常规剂量组37例(80.4%),低剂量组25例(78.1%);两组阳性诊断率差异无统计学意义。低剂量组的图像质量稍差,噪声较多,但均能满足诊断需要。结论在不影响CT 诊断质量前提下,适当降低扫描剂量是可行的。
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