M型超声对急性脑梗死颈总动脉畸变系数的横断面研究

IF 0.1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Vishwanath T. Thimmaiah, C. Anupama
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引用次数: 1

摘要

引言:在大多数急性脑梗死患者中,畸变系数(DC)是异常的。内膜-中膜厚度(IMT)通过B(亮度)模式测量,扩张性通过M(运动)模式超声测量。DC在临床实践中没有常规测量,尽管它是颈总动脉中最早发生的功能变化。IMT代表颈总动脉的结构变化,DC代表颈总血管的功能变化。目的:DC是评估急性脑梗死风险的一个有效的独立指标。本研究旨在了解异常DC与急性脑梗死患者的关系。材料与方法:对210例急性脑梗死患者进行了为期9个月的横断面研究。M型超声测量颈总动脉的可扩张性。Cramer的V值在0.0到1.0之间,P<0.05被认为具有统计学意义。结果:在210例急性脑梗死患者中,DC降低了62.8%。病例最多(38%)发生在61~70岁的年龄组。Cramer的V值在<15至<24×10−3 kPa之间(P<0.001)。DC减少与急性脑梗死之间存在良好的相关性。结论:DC是急性脑梗死的一个有效的独立危险因素。DC代表功能性血管壁性质,并随着年龄的增长而减少。M模式衍生的DC测量是有效的,异常的DC值与急性脑梗死有很好的相关性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distensibility coefficient of the common carotid artery in acute cerebral infarct by M-mode ultrasound: A cross-sectional study
Introduction: Distensibility coefficient (DC) is abnormal in most cases of acute cerebral infarct patients. Intima-media thickness (IMT) is measured by B (brightness)-mode and distensibility by M (motion)-mode ultrasound. DC is not routinely measured in clinical practice even though it is the earliest functional change to occur in common carotid arteries. IMT represents structural change and DC represents functional changes that occur in common carotid. Aim: DC is a valid independent indicator for risk assessment of acute cerebral infarcts. The present study is aimed at knowing the association of abnormal DC with acute cerebral infarct patients. Materials and Methods: Cross sectional study was undertaken over a period of 9 months with 210 cases of acute cerebral infarct. Distensibility of common carotid artery was measured by M-mode ultrasound. Cramer's V value ranged from 0.0 to 1.0 and P < 0.05 was considered statistically significant. Results: DC was reduced in 62.8% of the total 210 cases of acute cerebral infarct. Maximum cases (38%) were in the age groups of 61–70 years. Cramer's V value ranged from <15 to <24 × 10−3 kPa (P < 0.001). There was a good association between reduced DC and acute cerebral infarct in the present study. Conclusion: DC is a valid independent risk factor for acute cerebral infarct. DC represents functional vessel wall property and decreases with age. M-mode-derived measurements for DC are valid, and abnormal DC value is associated well with acute cerebral infarct.
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来源期刊
West African Journal of Radiology
West African Journal of Radiology RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
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