PMID- 25740668 OWN - NLM STAT- MEDLINE DCOM- 20151215 LR - 20150326 IS - 1347-4820 (Electronic) IS - 1346-9843 (Linking) VI - 79 IP - 4 DP - 2015 TI - Thin cap fibroatheroma defined as lipid core abutting lumen (LCAL) on integrated backscatter intravascular ultrasound - comparison with optical coherence tomography and correlation with peri-procedural myocardial infarction. PG - 808-17 LID - 10.1253/circj.CJ-14-0758 [doi] AB - BACKGROUND: This study evaluated the ability of a newly developed integrated backscatter intravascular ultrasound (IB-IVUS) system (VISIWAVE, Terumo, Tokyo, Japan) to detect optical coherence tomography (OCT)-verified thin cap fibroatheroma (TCFA) and assessed the correlation with peri-procedural myocardial infarction (PMI) after percutaneous coronary intervention (PCI). METHODS AND RESULTS: One hundred culprit lesions in 100 consecutive patients with ischemic heart disease who consented to repeated IVUS and OCT prior to PCI were studied. Of 100 lesions, 48 had OCT-verified TCFA with a cap thickness <65 microm. Such lesions had larger percentage lipid area and lipid angle >2 quadrants on IB-IVUS. A lipid core abutting lumen (LCAL) was defined as a lipid core pool in the plaque area, directly contacting with the lumen regardless of its circumferential extension. IB-IVUS-identified TCFA defined as a combination of percentage lipid area >/=53.6%, remodeling index >/=1.03, and the presence of LCAL was the best predictor of OCT-verified TCFA with sensitivity, specificity, positive and negative predictive values, and accuracy of 72.9%, 90.4%, 87.5%, 78.3%, and 82.0%, respectively. IB-IVUS-identified TCFA as well as OCT-verified TCFA were significant independent predictors of PMI, after adjusting for other predictors on multivariate analysis. CONCLUSIONS: IB-IVUS can be used to identify plaques with a high prevalence of TCFA. Such techniques can therefore potentially be used to identify lesions with an elevated risk of PMI after PCI. FAU - Ozaki, Yukio AU - Ozaki Y AD - Department of Cardiology, Fujita Health University Hospital. FAU - Ohota, Masaya AU - Ohota M FAU - Ismail, Tevfik F AU - Ismail TF FAU - Okumura, Masanori AU - Okumura M FAU - Ishikawa, Masato AU - Ishikawa M FAU - Muramatsu, Takashi AU - Muramatsu T LA - eng PT - Clinical Trial PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150213 PL - Japan TA - Circ J JT - Circulation journal : official journal of the Japanese Circulation Society JID - 101137683 RN - 0 (Lipids) SB - IM CIN - Circ J. 2015;79(4):754-5. PMID: 25753855 MH - Aged MH - Female MH - Humans MH - *Lipids MH - Male MH - Middle Aged MH - *Myocardial Infarction/etiology/pathology MH - Percutaneous Coronary Intervention/*adverse effects MH - Plaque, Atherosclerotic/pathology/surgery MH - Postoperative Complications/*pathology MH - *Tomography, Optical Coherence MH - *Ultrasonography, Interventional EDAT- 2015/03/06 06:00 MHDA- 2015/12/17 06:00 CRDT- 2015/03/06 06:00 PHST- 2015/03/06 06:00 [entrez] PHST- 2015/03/06 06:00 [pubmed] PHST- 2015/12/17 06:00 [medline] AID - 10.1253/circj.CJ-14-0758 [doi] PST - ppublish SO - Circ J. 2015;79(4):808-17. doi: 10.1253/circj.CJ-14-0758. Epub 2015 Feb 13.