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Troponin-Positive Non-Obstructive Coronary Arteries and Myocardial Infarction with Non-Obstructive Coronary Arteries: Definition, Etiologies, and Role of CT and MR Imaging

Authors
 Seung Min Yoo  ;  Sowon Jang  ;  Jeong A Kim  ;  Eun Ju Chun 
Citation
 KOREAN JOURNAL OF RADIOLOGY, Vol.21(12) : 1305-1316, 2020-12 
Journal Title
KOREAN JOURNAL OF RADIOLOGY
ISSN
 1229-6929 
Issue Date
2020-12
MeSH
Coronary Angiography ; Coronary Vessels / diagnostic imaging* ; Coronary Vessels / pathology ; Electrocardiography ; Humans ; Magnetic Resonance Imaging / methods* ; Myocardial Infarction / diagnosis ; Myocardial Infarction / diagnostic imaging* ; Tomography, X-Ray Computed / methods* ; Troponin / blood*
Keywords
Troponin ; CT ; MR ; Acute myocardial infarction
Abstract
In approximately 10% of patients with acute myocardial infarction (MI), angiography does not reveal an obstructive coronary stenosis. This is known as myocardial infarction with non-obstructive coronary arteries (MINOCA), which has complex and multifactorial causes. However, this term can be confusing and open to dual interpretation, because MINOCA is also used to describe patients with acute myocardial injury caused by ischemia-related myocardial necrosis. Therefore, with regards to this specific context of MINOCA, the generic term for MINOCA should be replaced with troponin-positive with non-obstructive coronary arteries (TpNOCA). The causes of TpNOCA can be subcategorized into epicardial coronary (causes of MINOCA), myocardial, and extracardiac disorders. Cardiac magnetic resonance imaging can confirm MI and differentiate various myocardial causes, while cardiac computed tomography is useful to diagnose the extracardiac causes.
Files in This Item:
T9992020112.pdf Download
DOI
10.3348/kjr.2020.0064
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jeong Ah(김정아) ORCID logo https://orcid.org/0000-0003-4949-4913
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/189895
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