Cardiac MRI in Ischemic Heart Disease with Severe Coronary Artery Stenosis
| Autor: | Göksel Kahraman, Yonca Anik, Dilek Ural, Baki Komsuoglu, Ali Demirci, Muharrem Unlu |
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| Rok vydání: | 2006 |
| Předmět: |
Adult
Gadolinium DTPA Male medicine.medical_specialty Heart Ventricles Myocardial Ischemia Contrast Media Coronary Angiography Sensitivity and Specificity Severity of Illness Index Internal medicine medicine.artery medicine Humans Radiology Nuclear Medicine and imaging Myocardial infarction Aged medicine.diagnostic_test business.industry Coronary Stenosis Magnetic resonance imaging Middle Aged Image Enhancement medicine.disease Magnetic Resonance Imaging Myocardial Contraction Perfusion Coronary arteries Stenosis medicine.anatomical_structure Research Design Case-Control Studies Right coronary artery Injections Intravenous Angiography cardiovascular system Cardiology Female Radiology business Artery |
| Zdroj: | Academic Radiology. 13:1387-1393 |
| ISSN: | 1076-6332 |
| DOI: | 10.1016/j.acra.2006.08.014 |
| Popis: | Rationale and Objectives The aim was to evaluate the left ventricular wall motion abnormalities, perfusion and late contrast enhancement patterns on magnetic resonance imaging (MRI) in patients with 70% or higher degree stenosis or occlusion of coronary arteries on coronary angiography. Materials and Methods Twenty-four patients (5 women, 19 men, age range 38–78, mean age 59.1) who had 70% or higher degree stenosis or occlusion of coronary arteries on coronary angiography who had been referred for cardiac MRI were included. On coronary angiography, 20 vessels were totally occluded [left anterior descending artery (LAD) 12; left circumflex coronary artery (LCx) 2; right coronary artery 6] and 20 vessels were severely stenotic (70–99%). In 5 patients’ three vessels, in 6 patients’ two vessels, and in 13 patients’ a single vessel was involved. Wall motion, perfusion abnormalities, and late contrast enhancement consistent with nonviable myocardium were analyzed at apical, at midventricular, and basal levels on short-axis images of cardiac MRI in concordance with the segmental irrigation areas of the coronary arteries. Results Impaired perfusion was observed on the corresponding irrigation segments of 39 vessels of 40 coronary artery branches. Wall motion abnormalities were present on corresponding irrigation areas of 30 severely stenotic vessels. Combined evaluation of wall motion and perfusion, segments with the decreased left ventricular contraction, and perfusion matched with the corresponding irrigation areas of all of the 40 stenotic or occluded vessels. Conclusion A correlation was found between the combined assessments of myocardial perfusion, wall motion, and viability on late contrast enhancement on cardiac MRI with the clinical and angiography findings. Thus this combined MRI protocol can be used for the evaluation of ischemic heart disease. |
| Databáze: | OpenAIRE |
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