Acta Radiol:阜外医院吕滨等研究称,做冠脉CT时,个体化应用对比剂效果好

2019-05-21 朱柳媛 中国循环杂志

在做冠脉CT血管造影检查时,血管内对比剂的增强程度会影响对冠脉斑块的诊断。

在做冠脉CT血管造影检查时,血管内对比剂的增强程度会影响对冠脉斑块的诊断

近日,阜外医院放射影像中心吕滨教授等发表的一项研究表明,在做冠脉CT血管造影检查时,根据体表面积计算对比剂用量,可以在注射不同浓度对比剂的各种体态患者中,获得一致的对比剂增强效果和成像质量。

在这项研究中,接受冠脉CT血管造影检查的所有患者随机注射不同浓度的对比剂,对比剂剂量根据体表面积计算。

结果发现,在各个不同浓度对比剂组中,降主动脉、左前降支近段和远段、右冠状动脉近段和远段的衰减均无显着差异。冠状动脉远段的增强效果比近段要差一些。另外,各组中左前降支和右冠状动脉的对比噪声比(CNR)也均相似。

在不同体重指数的患者亚组中,血管内对比剂的增强效果也一致。

所有患者的冠脉CT血管造影检查的总体主观成像质量好。

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    2020-01-26 windight

    #CTA#

    0

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    2020-01-07 thinkibmz_44722594

    #阜外医#

    0

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    2019-05-22 jj000001
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    2019-05-22 智者为医08

    #个体化#

    0

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    2019-05-22 许安

    #冠脉CT#

    0

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    2019-05-21 CHANGE

    疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的

    0

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盘点:近期关于冠状动脉CT应用的研究进展一览

【1】NEJM:眼见为实!高强度他汀和依折麦布等逆转冠脉严重狭窄近期《新英格兰医学杂志》刊登的一个病例表明,无论是冠脉CT,还是灌注成像,其清晰的图像均证明,药物治疗逆转斑块是有效的。患者为42岁男性,主因间歇性劳力性胸痛4个月就诊。既往有高脂血症和冠状动脉疾病家族史。运动心肌灌注成像显示左侧冠状动脉中度缺血。冠状动脉CT显示,回旋支近段严重狭窄,有大量粥样硬化斑块。之后患者服用高强度他汀、依