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超声检查和计算机断层扫描测量腹主动脉——差异与变异性

Measuring the abdominal aorta with ultrasonography and computed tomography - difference and variability.

作者信息

Wanhainen A, Bergqvist D, Björck M

机构信息

Department of Surgery Ornsköldsvik, County Hospital, Sweden.

出版信息

Eur J Vasc Endovasc Surg. 2002 Nov;24(5):428-34. doi: 10.1053/ejvs.2002.1748.

DOI:10.1053/ejvs.2002.1748
PMID:12435343
Abstract

OBJECTIVES

The aim of this study was to estimate the agreement between ultrasonography (US) and computed tomography (CT) in the measurement of aortic diameter in subjects with and without abdominal aortic aneurysms (AAA).

MATERIAL AND METHODS

Sixty-one subjects were investigated, 33 with a diameter >30mm and 28 with a diameter <30mm. Difference and variabily anteroposterior (AP) and transverse (TR) diameters were analysed.

RESULTS

In non-aneurysmal aortas US gave larger AP: 2.8mm (95% CI 1.7-4.0) and TR: 3.8mm (2.3-5.3) diameter. In AAAs the mean diameter did not differ significantly. In non-aneurysmal aortas we expect 95% of differences to be <5.7mm in AP and <7.6mm in TR measurements. In aneurysmal aortas we expect 95% of differences to be <8.0mm in AP and <10.6mm in TR measurements.

CONCLUSION

The difference and variability between US and CT varies depends on the diameter of the aorta and how it is measured. These differences have importance for clinical practice and for research.

摘要

目的

本研究旨在评估超声检查（US）和计算机断层扫描（CT）在测量有无腹主动脉瘤（AAA）患者主动脉直径时的一致性。

材料与方法

对61名受试者进行了研究，其中33名主动脉直径>30mm，28名主动脉直径<30mm。分析了前后径（AP）和横径（TR）的差异及变异性。

结果

在非动脉瘤性主动脉中，超声检查测得的AP直径更大：2.8mm（95%CI 1.7 - 4.0），TR直径更大：3.8mm（2.3 - 5.3）。在腹主动脉瘤中，平均直径无显著差异。在非动脉瘤性主动脉中，我们预计95%的AP测量差异<5.7mm，TR测量差异<7.6mm。在动脉瘤性主动脉中，我们预计95%的AP测量差异<8.0mm，TR测量差异<10.6mm。

结论

超声检查和CT之间的差异及变异性取决于主动脉直径及其测量方式。这些差异对临床实践和研究具有重要意义。

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