Hemodynamic evaluation of the efficacy for superficial temporal artery-middle cerebral artery bypass with vascular ultrasonography
10.3760/cma.j.cn131148-20220713-00499
- VernacularTitle:颞浅动脉－大脑中动脉搭桥术近期效果的超声血流动力学评估
- Author:
Yumeng LUO
1
;
Yumei LIU
;
Yanfei CHEN
;
Yingqi XING
Author Information
1. 首都医科大学宣武医院血管超声诊断科 北京市血管超声诊断中心 北京脑重大疾病研究院血管超声研究所，北京 100053
- Keywords:
Superficial temporal artery-middle cerebral artery bypass;
Moyamoya disease;
Cerebrovascular diseases;
Color Doppler ultrasonography;
Hemodynamics
- From:
Chinese Journal of Ultrasonography
2023;32(3):250-256
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the hemodynamic changes and short-term (one year) outcomes after superficial temporal artery(STA)-middle cerebral artery (MCA) bypass by vascular ultrasonography.Methods:Operation group included a total of 41 hemispheres of 38 patients who underwent STA-MCA bypass for severe stenosis or occlusion of MCA or severe stenosis or occlusion of internal carotid artery(ICA), or Moyamoya disease at Xuanwu Hospital between August 2017 and June 2020. The following examinations were performed in all patients: cranial MRI, CT perfusion imaging, and cerebral angiography. All of the patients were retrospectively followed up for one year postsurgery. Normal group included a total of 40 hemispheres of 20 healthy people who had been examined by vascular ultrasonography of carotid artery and intracranial artery. Inner diameter, peak systolic velocity (PSV), end-diastolic velocity (EDV), mean velocity (MV), resistance index (RI), pulsatility index (PI) and flow of STA, PSV, EDV, MV, PI, RI of external carotid artery (ECA) and PSV, EDV, MV, PI, RI of MCA at 1 week, 6 months and 12 months after STA-MCA bypass of operation group were compared with normal group.Results:①Inner diameter, PSV, MV and flow of STA were increased significantly in operation group at 1 week, 6 and 12 months than normal group (all P<0.05). The flow of STA was decreased significantly from 1 week to 12 months after operation (all P<0.05), but Inner diameter, PSV and MV were only decreased gradually from 1 week to 12 months after operation (all P>0.05). ②STA/ECA PI and RI decreased significantly after operation compared with normal group (all P<0.01). Conclusions:Vascular ultrasonography is a non-invasive examination which can objectively evaluate the extracranial and intracranial hemodynamic changes after STA-MCA bypass, and provide reference effectiveness of the operation. The flow of STA has decreased gradually from 1 week to 12 months after operation to achieve the homeostasis, but it is still higher than normal.STA/ECA PI and RI can be a steady indirect pointer to show the fluency of bypass.
