Characterization of high-intensity plaques on noncontrast T1-weighted magnetic resonance imaging by coronary angioscopy
| Autor: | Hiroshi Matsuoka, Toru Miyoshi, Fumiyasu Seike, Hideo Kawakami, Akira Oshita |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Coronary angioscopy Angioscopy 030204 cardiovascular system & hematology Angina Pectoris 03 medical and health sciences 0302 clinical medicine Internal medicine medicine T1 weighted Humans Plaque morphology 030212 general & internal medicine Thrombus Aged Aged 80 and over medicine.diagnostic_test business.industry Unstable angina High intensity Thrombosis Magnetic resonance imaging Middle Aged medicine.disease Coronary Vessels Magnetic Resonance Imaging Plaque Atherosclerotic Cardiology Female Radiology Cardiology and Cardiovascular Medicine business |
| Zdroj: | Journal of Cardiology. 70:520-523 |
| ISSN: | 0914-5087 |
| DOI: | 10.1016/j.jjcc.2017.04.009 |
| Popis: | Background A recent study showed that coronary high-intensity plaques (HIPs) visualized by noncontrast T1-weighted imaging (T1WI) in cardiac magnetic resonance were associated with coronary events. We used coronary angioscopy to analyze HIP plaque morphology. Methods and results A total 17 lesions from 17 patients with stable or unstable angina pectoris were evaluated at the culprit lesion by noncontrast T1WI using 1.5-T magnetic resonance; of them, nine (53%) were HIPs and eight (47%) were non-HIPs, and all were analyzed by coronary angioscopy. We assessed the existence of thrombus and plaque yellow color grade (YG). YG was assessed visually according to a four-grade scale: 0, white; 1, light yellow; 2, yellow; 3, intense yellow. The frequency of thrombus was significantly higher in HIPs than in non-HIPs (89% vs. 25%, respectively; p = 0.007). YG was significantly more frequent in HIPs than in non-HIPs (2.2 ± 0.4 vs. 0.7 ± 0.7, respectively; p = 0.01). Conclusions These data indicated that HIPs on noncontrast T1WI were associated with the presence of high-grade yellow plaque with thrombus. |
| Databáze: | OpenAIRE |
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