Coronary Plaque Characterization with T1-weighted MRI and Near-Infrared Spectroscopy to Predict Periprocedural Myocardial Injury.
Koji IsodonoHidenari MatsumotoDebiao LiPiotr J SlomkaDamini DeySebastien CadetDaisuke IrieSatoshi HiguchiHiroki TanisawaMotoki NakazawaYoshiaki KomoriHidefumi OhyaRyoji KitamuraTetsuichi HonderaIkumi SatoHsu-Lei LeeAnthony G ChristodoulouYibin XieToshiro ShinkePublished in: Radiology. Cardiothoracic imaging (2024)
Purpose To clarify the predominant causative plaque constituent for periprocedural myocardial injury (PMI) following percutaneous coronary intervention: (a) erythrocyte-derived materials, indicated by a high plaque-to-myocardium signal intensity ratio (PMR) at coronary atherosclerosis T1-weighted characterization (CATCH) MRI, or (b) lipids, represented by a high maximum 4-mm lipid core burden index (maxLCBI 4 mm ) at near-infrared spectroscopy intravascular US (NIRS-IVUS). Materials and Methods This retrospective study included consecutive patients who underwent CATCH MRI before elective NIRS-IVUS-guided percutaneous coronary intervention at two facilities. PMI was defined as post-percutaneous coronary intervention troponin T values greater than five times the upper reference limit. Multivariable analysis was performed to identify predictors of PMI. Finally, the predictive capabilities of MRI, NIRS-IVUS, and their combination were compared. Results A total of 103 lesions from 103 patients (median age, 72 years [IQR, 64-78]; 78 male patients) were included. PMI occurred in 36 lesions. In multivariable analysis, PMR emerged as the strongest predictor ( P = .001), whereas maxLCBI 4 mm was not a significant predictor ( P = .07). When PMR was excluded from the analysis, maxLCBI 4 mm emerged as the sole independent predictor ( P = .02). The combination of MRI and NIRS-IVUS yielded the largest area under the receiver operating curve (0.86 [95% CI: 0.64, 0.83]), surpassing that of NIRS-IVUS alone (0.75 [95% CI: 0.64, 0.83]; P = .02) or MRI alone (0.80 [95% CI: 0.68, 0.88]; P = .30). Conclusion Erythrocyte-derived materials in plaques, represented by a high PMR at CATCH MRI, were strongly associated with PMI independent of lipids. MRI may play a crucial role in predicting PMI by offering unique pathologic insights into plaques, distinct from those provided by NIRS. Keywords: Coronary Plaque, Periprocedural Myocardial Injury, MRI, Near-Infrared Spectroscopy Intravascular US Supplemental material is available for this article. © RSNA, 2024.
Keyphrases
- contrast enhanced
- percutaneous coronary intervention
- coronary artery disease
- magnetic resonance imaging
- end stage renal disease
- diffusion weighted imaging
- coronary artery
- st segment elevation myocardial infarction
- ejection fraction
- magnetic resonance
- computed tomography
- acute myocardial infarction
- newly diagnosed
- antiplatelet therapy
- st elevation myocardial infarction
- peritoneal dialysis
- coronary artery bypass grafting
- cardiovascular disease
- venous thromboembolism
- radiation therapy
- atrial fibrillation
- left ventricular
- patient reported
- direct oral anticoagulants
- lymph node