Use of Magnetic Resonance Angiography for Assessment of Coronary Artery Lesions Caused by Kawasaki Disease
Coronary artery aneurysms caused by Kawasaki disease (KD) often progress to obstructive arterial lesions. Patients are therefore followed up throughout their lives by X-ray coronary angiography (CAG). However, CAG is invasive, hazardous, and expensive. Noninvasive magnetic resonance coronary angiography (MRCA) has remarkably improved. Since 1999, we have used MRCA to evaluate more than 1200 patients with KD, 262 of whom also underwent follow up with MRCA. We found that MRCA was useful in evaluating all types of coronary artery lesions during all stages of KD [1, 2]. In addition, when black-blood imaging sequences were used, MRCA clearly detected artery walls and thrombi in aneurysms [1, 2]. These imaging techniques are recommended to minimize use of CAG. Magnetic resonance myocardial imaging is likely to replace radioactive-isotope myocardial imaging.
KeywordsCoronary aneurysms Intimal thickening Thrombus Recanalized vessels
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