使用B型超声对颈动脉段内膜中层厚度测量的可重复性进行体内评估。

An in vivo evaluation of the reproducibility of intima-media thickness measurements of the carotid artery segments using B-mode ultrasound.

作者信息

Montauban van Swijndregt A D, De Lange E E, De Groot E, Ackerstaff R G

机构信息

Department of Radiology, St. Antonius Hospital, Nieuwegein, The Netherlands.

出版信息

Ultrasound Med Biol. 1999 Mar;25(3):323-30. doi: 10.1016/s0301-5629(98)00183-5.

DOI:10.1016/s0301-5629(98)00183-5

PMID:10374976

Abstract

B-mode ultrasound may be used to measure the intima-media thickness (IMT) in subjects with a history of atherosclerosis. The variability between measurements depends on the subjective interpretation of ultrasonographers and readers. The two carotid arteries, subdivided in common (CCA), bulbus (BUL) and internal (ICA) of 10 men with proven coronary disease, were scanned twice by two ultrasonographers with a 1-week interval. The IMTs were measured off-line by two readers. The number of IMT measurements was 75 (94%) of 80 in the CCA, 61 (76%) of 80 in the BUL and 43 (54%) of 80 in the ICA segment. In the CCA segment, the agreement between readers (mean = 0.02 mm; limits: -0.26 to +0.3 mm) and between visits for each reader separately (reader 1: mean = 0.01 mm; limits: -0.33 to +0.35 mm and, reader 2: mean = 0.04 mm; limits: -0.36 to +0.44 mm) was better than in the more distal segments. Therefore, it is concluded that IMT measurements are best performed in the CCA segment.

摘要

B 型超声可用于测量有动脉粥样硬化病史受试者的内膜中层厚度（IMT）。测量结果之间的差异取决于超声检查人员和阅片者的主观判断。对 10 名确诊为冠心病的男性的两条颈动脉（分为颈总动脉（CCA）、球部（BUL）和颈内动脉（ICA））进行扫描，由两名超声检查人员进行两次扫描，间隔 1 周。两名阅片者离线测量 IMT。在颈总动脉段，IMT 测量值占 80 个测量值中的 75 个（94%），在球部占 80 个中的 61 个（76%），在颈内动脉段占 80 个中的 43 个（54%）。在颈总动脉段，阅片者之间的一致性（平均值 = 0.02 mm；范围：-0.26 至 +0.3 mm）以及每位阅片者两次检查之间的一致性（阅片者 1：平均值 = 0.01 mm；范围：-0.33 至 +0.35 mm，阅片者 2：平均值 = 0.04 mm；范围：-0.36 至 +0.44 mm）优于更远端的节段。因此，得出结论，IMT 测量最好在颈总动脉段进行。