Cost identification of abdominal aortic aneurysm imaging by using time and motion analyses.
Cost identification of abdominal aortic aneurysm imaging by using time and motion analyses.
复制标题
通过使用时间和运动分析来确定腹主动脉瘤成像的成本。
DOI：
10.1148/radiology.215.1.r00ap4863
复制
发表时间：
2000
期刊：
影响因子：
19.7
通讯作者：
Napel,S
中科院分区：
文献类型：
--
作者：
Rubin,GD;Armerding,MD;Dake,MD;Napel,S
目的：比较腹主动脉瘤（AAAs）术前三维显像螺旋计算机断层扫描（CT）血管造影与动脉内数字减影血管造影（DSA）的成本。材料和方法：通过时间和运动分析，单个观察者确定了年龄和一般健康匹配的AAA患者进行9次动脉内DSA和10次CT血管造影检查的可变直接成本。所有直接参与案件的人员都被跟踪，参与时间被记录到最近的分钟。过程中使用的所有材料都有记录。人工成本由人员报销数据确定，材料成本由供应商定价确定。根据医院会计记录评估了实验室检查和使用流动治疗单位进行术后监测的可变直接费用以及所有固定直接费用。确定每个过程的总成本，并通过使用Studentttest和计算ci进行比较。结果：动脉内DSA的平均总直接成本（±SD）为1052±71美元，CT血管造影的平均总直接成本为300±30美元，两者差异有统计学意义（P< 4.1 × 10−11）。在95%的置信度下，动脉内DSA评估aaa的成本是CT血管造影的3.2-3.7倍。结论：假设相同的诊断效用和手术相关的发病率，当CT血管造影取代动脉内DSA成像aaa时，机构可能会节省大量的成本。
PURPOSE:To compare the costs of performing helical computed tomographic (CT) angiography with three-dimensional rendering versus intraarterial digital subtraction angiography (DSA) for preoperative imaging of abdominal aortic aneurysms (AAAs).MATERIALS AND METHODS:A single observer determined the variable direct costs of performing nine intraarterial DSA and 10 CT angiographic examinations in age- and general health–matched patients with AAA by using time and motion analyses. All personnel directly involved in the cases were tracked, and the involvement times were recorded to the nearest minute. All material items used during the procedures were recorded. The cost of labor was determined from personnel reimbursement data, and the cost of materials, from vendor pricing. The variable direct costs of laboratory tests and using the ambulatory treatment unit for postprocedural monitoring, as well as all fixed direct costs, were assessed from hospital accounting records. The total costs were determined for each procedure and compared by using the Studentttest and calculating the CIs.RESULTS:The mean total direct cost of intraarterial DSA (± SD) was $1,052 ± 71, and that of CT angiography was $300 ± 30, which are significantly different (P< 4.1 × 10−11). With 95% confidence, intraarterial DSA cost 3.2–3.7 times more than CT angiography for the assessment of AAA.CONCLUSION:Assuming equal diagnostic utility and procedure-related morbidity, institutions may have substantial cost savings whenever CT angiography can replace intraarterial DSA for imaging AAAs.