Associations of Arterial Distensibility Between Carotid Arteries and Abdominal Aorta by MR

作者：Jiang, Li; Chen, Huijun; Li, Rui; Han, Xu; Chen, Zhensen; He, Le; Yuan, Chun; Zhao, Xihai^*

来源：Journal of Magnetic Resonance Imaging, 2015, 41(4): 1138-1142.

DOI：10.1002/jmri.24631

• arterial distensibility
• carotid artery
• abdominal aorta
• age

PurposeTo investigate the correlations of arterial distensibility between carotid arteries and abdominal aorta by MR. @@@ Materials and MethodsTwenty eight asymptomatic old subjects (71.4 6.7 years; 14 males) and 20 healthy young subjects (23.5 1.0 years; 10 males) were imaged with electrocardiograph-triggered balanced turbo field echo sequence sequence. Arterial distensibility was calculated as the relative lumen area change against unit blood pressure change and its relationship between carotid arteries and abdominal aorta was determined. @@@ ResultsThe arterial distensibility in old subjects was significantly smaller than that in young subjects for left carotid artery (19.0 +/- 6.6 x 10(-3)/kpa versus 30.9 +/- 6.5 x 10(-3)/kpa), right carotid artery (16.7 +/- 6.1 x 10(-3)/kpa versus 28.6 +/- 9.3 x 10(-3)/kpa), and abdominal aorta (14.3 +/- 5.5 x 10(-3)/kpa versus 37.5 +/- 8.8 x 10(-3)/kpa), respectively (all P < 0.001). In both age groups, distensibility of the abdominal aorta was strongly correlated with that of the left carotid artery (old age group: r = 0.553; P = 0.004; young age group: r = 0.487; P = 0.029) but not with that of the right carotid artery (old age group: r = 0.371; P = 0.062; young age group: r = 0.189; P = 0.424). @@@ ConclusionThe distensibility of abdominal aorta is much more strongly associated with that of the left carotid artery compared with that of the right carotid artery. J. Magn. Reson. Imaging 2015;41:1138-1142.

• 出版日期2015-4
• 单位中国人民解放军总医院; 清华大学