Renston J P, Connors A F, DiMarco A F
MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio, USA.
South Med J. 1996 Nov;89(11):1067-73. doi: 10.1097/00007611-199611000-00008.
To investigate physicians' use of computed tomography (CT) of the chest and their attitudes regarding the risks and benefits of chest CT, we conducted a nationwide survey of 1,000 board certified physicians from several specialties of medicine, using a self-administered mail questionnaire. Three hundred thirteen surveys were completed. Overall, CT ordering practices varied with specialty. While the majority of physicians believed that CT provided new information (64%) and influenced patient management (62%), fewer physicians (30%) perceived that CT improved patient outcome. More than 90% of physicians either did not know or significantly underestimated the degree of radiation associated with CT (equivalent to 100 posteroanterior chest radiographs). We conclude that, given the paucity of prospective controlled trials establishing clear indications for the use of chest CT, physicians across all specialties should give careful consideration to the anticipated benefits and potential risks of chest CT before using this test.
为了调查医生对胸部计算机断层扫描（CT）的使用情况以及他们对胸部CT风险和益处的态度，我们使用自行填写的邮寄问卷，对来自多个医学专业的1000名获得委员会认证的医生进行了一项全国性调查。共完成了313份调查问卷。总体而言，CT检查的开具情况因专业而异。虽然大多数医生认为CT提供了新信息（64%）并影响了患者管理（62%），但较少医生（30%）认为CT改善了患者预后。超过90%的医生要么不知道，要么大大低估了与CT相关的辐射剂量（相当于100次胸部后前位X线片）。我们得出结论，鉴于缺乏前瞻性对照试验来确定使用胸部CT的明确指征，所有专业的医生在使用该检查之前都应仔细考虑胸部CT的预期益处和潜在风险。
