Assessment of the internal mammary artery using ultrasound in patients with coronary artery disease before coronary artery bypass grafting
- VernacularTitle:冠状动脉旁路移植术前应用超声评估冠心病患者乳内动脉的临床研究
- Author:
Rui LIU
1
;
Qing WEI
2
;
Xiaoyan MA
3
;
Qiang GUAN
1
;
Junmin CHU
1
;
Liqing WANG
1
;
Hansong SUN
1
;
Yunhu SONG
1
;
Liuzhong SHEN
1
Author Information
1. Department of Cardiovascular Surgery, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, 100037, P. R. China
2. Department of Ultrasound Imaging Center, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, 100037, P. R. China
3. Department of Radiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, 100037, P. R. China
- Publication Type:Journal Article
- Keywords:
Internal mammary artery;
ultrasound;
coronary heart disease;
vascular internal diameter;
blood flow
- From:
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
2023;30(02):249-252
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the feasibility and effectiveness of using ultrasound to evaluate the internal mammary artery (IMA) and explore the related factors affecting the quality of IMA. Methods From July 2020 to January 2021, for patients who underwent coronary artery bypass grafting at the Department of Cardiovascular Surgery, Fuwai Hospital, ultrasound was applied to measure bilateral IMA at the parasternal second intercostal space. There were 62 males and 18 females with an average age of 59.9±8.3 years. The clinical data of the patients were recorded and analyzed. Results A total of 160 IMA were measured. The IMA was detected in 99.4% (159/160), and the one that was not measured was proved to be occluded by enhanced CT. A total of 157 (98.1%) IMA intima were smooth, 2 (1.3%) were found to have uneven intimal thickening and less smooth, and only 1 (0.6%) was occluded. The intravascular diameter, peak systolic flow rate, peak diastolic flow rate, and blood flow rate of the left second intercostal IMA were 1.9±0.3 mm, 66.8±17.7 cm/s, 6.4 (0.0, 9.7) cm/s, 19.7±9.4 mL/min; and those of the right one were 2.1±0.3 mm, 69.7±18.5 cm/s, 6.0 (0.0, 9.2) cm/s and 22.8±11.5 mL/min, respectively. IMA vessel diameter and blood flow were greater on the right than those on the left side in the same individual (P<0.01). In univariate analysis, sex and body surface area were the factors that influenced the size of the IMA vessel among different individuals, and by linear regression analysis, the size of the IMA vessel was only related to body surface area among different individuals. On univariate analysis, diabetes mellitus was the only factor affecting IMA blood flow, with a mean reduction in blood flow of 18.4% (left) and 21.7% (right) in the diabetic group (P<0.05). Conclusion Preoperative evaluation of the IMA using ultrasound over the parasternal second intercostal space is easy, noninvasive, and has a high success rate. The internal diameter of the IMA is positively correlated with body surface area, and blood flow is significantly reduced in patients with diabetes.
