JAMA Intern Med:CT肺血管造影诊断阳性率及影响因素

2018-01-09 zhangfan MedSci原创

研究发现,总的CTPA阳性率为14.3%,而不同医生的CTPA阳性率差异显著。研究认为医生因素,例如专业和专业经验,与阳性诊断率没有显著关联。患者年龄以及检查数目增加可显著降低诊断阳性率

肺栓塞(PE)可危及生命,CT肺血管造影(CTPA)是其主要的确诊方法。CTPA的过度利用和有害电离辐射是合理医疗资源管理领域关注的重点。近日研究人员就降低CTPA过度使用,同时提高CTPA诊断率的方法及影响因素进行了探索。

研究人员对2014-16年间加拿大魁北克省蒙特利尔地区所有的CTPA资料进行分析。将CTPA结果分为阳性、阴性或不确定。182名医生的1394次检查结果包含其中,阳性诊断199次(14.3%),阴性诊断1195次(85.7%),通过多因素逻辑回归分析考察医师专业,执业年数,医师性别或每个医生所指定的研究总数对CTPA诊断率的影响。

研究发现,CTPA阳性比例随医生进行的CTPA数量增加而下降。每增加10次检查,阳性结果的下降的比值比为0.76(95% CI,0.73-0.79)。患者年龄增加导致阳性诊断增加(OR 1.02 每年; 95% CI, 1.01-1.03)。医生从业时间(OR,1.01;95% CI,0.99-1.02)、性别(OR,1.14;95% CI,0.79-1.63)以及急诊就诊 (OR,1.11;95% CI,0.75-1.65)对诊断率无显著影响。急诊亚组中,诊断阳性率为12.6%,诊断量每增加10次对诊断阳性率的影响与之前的研究类似(OR,0.74;95% CI,0.71-0.78)。

研究发现,总的CTPA阳性率为14.3%,而不同医生的CTPA阳性率差异显著。研究认为医生因素,例如专业和专业经验,与阳性诊断率没有显著关联。患者年龄以及检查数目增加可显著降低诊断阳性率。

原始出处:

Jaron Chong et al. Association of Lower Diagnostic Yield With High Users of CT Pulmonary Angiogram. JAMA Intern Med. January 8, 2018.

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    2018-01-11 sodoo
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    2018-01-09 131****1460

    学习了受益匪浅

    0

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    2018-01-09 hhh678

    henhao

    0

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    2018-01-09 1e0f8808m18(暂无匿称)

    好文章.学习了.

    0

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    2018-01-09 龙胆草

    学习谢谢分享

    0

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