Article Sidebar
Views PDF: 77
Assessment of the characteristics of myocardial bridge by MSCT-256 slices
Main Article Content
Abstract
Purpose: to evaluate and analyze the ratio of position, depth and length of the coronary myocardial bridge, the status of pre-myocardial atherosclerosis and the degree of vascular stenosis during systole by multislice-computed tomography (MSCT) images series.
Material and method: Computed tomography scan for 175 patients using a 256-row MSCT machine at Hanoi Friendship Hospital between July 2021 and August 2022. Select the best quality images in systole and diastole. Measure the length and thickness of the bridge. For each myocardial bridge segment, assess for the presence of anterior atherosclerotic plaque no more than 2 cm in length of the artery. Assess the degree of vascular stenosis during systole caused by the myocardial bridge.
Result: Most of the myocardial bridges were located in the anterior interventricular artery (LAD) (98.3%). The average values of the length and thickness of the bridge are 23.1 ± 10.5mm and 1.0 ± 1.0mm. Atherosclerosis was detected in 77 cases (accounting for 43%). The average degree of tunneling artery stenosis was 23.0% systolic.
Conclusion: MSCT 256 series has a high value in detecting bridges, determining the location, there by measuring the length, the thickness of the pons, the status of anterior atherosclerotic plaques as well as the degree of narrowing of the vessel lumen systole of the musculature.
Article Details
Keywords
myocardial bridge, coronary artery, multislice computed tomography
References
2. Đỗ Xuân Hợp. Giải phẫu ngực. Nhà xuất bản y học; 1978.
3. Lim JJ, Jung JI, Lee BY, Lee HGJAJoR. Prevalence and types of coronary artery fistulas detected with coronary CT angiography. 2014;203(3):W237-W243.
4. Zenooz NA, Habibi R, Mammen L, Finn JP, Gilkeson RCJR. Coronary artery fistulas: CT findings. 2009;29(3):781-789.
5. Zhu C, Wang S, Wang S, et al. Prevalence and characteristics of intramural coronary artery in hypertrophic obstructive cardiomyopathy: a coronary computed tomography and invasive angiography study. Quant Imaging Med Surg. Jan 2021;11(1):162-171. doi:10.21037/qims-20-362
6. Sternheim D, Power DA, Samtani R, Kini A, Fuster V, Sharma S. Myocardial Bridging: Diagnosis, Functional Assessment, and Management: JACC State-of-the-Art Review. J Am Coll Cardiol. Nov 30 2021;78(22):2196-2212. doi:10.1016/j.jacc.2021.09.859
7. Hwang JH, Ko SM, Roh HG, et al. Myocardial bridging of the left anterior descending coronary artery: depiction rate and morphologic features by dual-source CT coronary angiography. Korean J Radiol. Sep-Oct 2010;11(5):514-21. doi:10.3348/kjr.2010.11.5.514
8. Cullu N, Yeniceri IO, Ozdemir MY, Altun I, Dogan E. Evaluation of the morphological and clinical features of left anterior descending myocardial bridging with multi-detector computed tomography. Kardiochir Torakochirurgia Pol. Jun 2021;18(2):87-91. doi:10.5114/kitp.2021.107469
9. Yu M, Zhang Y, Li Y, Li M, Li W, Zhang J. Assessment of Myocardial Bridge by Cardiac CT: Intracoronary Transluminal Attenuation Gradient Derived from Diastolic Phase Predicts Systolic Compression. Korean J Radiol. Jul-Aug 2017;18(4):655-663. doi:10.3348/kjr.2017.18.4.655
10. Vũ Thu Thủy. Đánh giá đặc điểm cầu cơ động mạch vành trên máy chụp cắt lớp vi tính hai nguồn năng lượng 256 dãy tại bệnh viện Bạch Mai. Trường Đại học Y Hà Nội; 2014