PMID- 25184808 OWN - NLM STAT- MEDLINE DCOM- 20150330 LR - 20240117 IS - 1532-429X (Electronic) IS - 1097-6647 (Print) IS - 1097-6647 (Linking) VI - 16 IP - 1 DP - 2014 Jul 25 TI - Multi-contrast atherosclerosis characterization (MATCH) of carotid plaque with a single 5-min scan: technical development and clinical feasibility. PG - 53 LID - 10.1186/s12968-014-0053-5 [doi] AB - BACKGROUND: Multi-contrast weighted imaging is a commonly used cardiovascular magnetic resonance (CMR) protocol for characterization of carotid plaque composition. However, this approach is limited in several aspects including low slice resolution, long scan time, image mis-registration, and complex image interpretation. In this work, a 3D CMR technique, named Multi-contrast Atherosclerosis Characterization (MATCH), was developed to mitigate the above limitations. METHODS: MATCH employs a 3D spoiled segmented fast low angle shot readout to acquire data with three different contrast weightings in an interleaved fashion. The inherently co-registered image sets, hyper T1-weighting, gray blood, and T2-weighting, are used to detect intra-plaque hemorrhage (IPH), calcification (CA), lipid-rich necrotic core (LRNC), and loose-matrix (LM). The MATCH sequence was optimized by computer simulations and testing on four healthy volunteers and then evaluated in a pilot study of six patients with carotid plaque, using the conventional multi-contrast protocol as a reference. RESULTS: On MATCH images, the major plaque components were easy to identify. Spatial co-registration between the three image sets with MATCH was particularly helpful for the reviewer to discern co-existent components in an image and appreciate their spatial relation. Based on Cohen's kappa tests, moderate to excellent agreement in the image-based or artery-based component detection between the two protocols was obtained for LRNC, IPH, CA, and LM, respectively. Compared with the conventional multi-contrast protocol, the MATCH protocol yield significantly higher signal contrast ratio for IPH (3.1+/-1.3 vs. 0.4+/-0.3, p<0.001) and CA (1.6+/-1.5 vs. 0.7+/-0.6, p=0.012) with respect to the vessel wall. CONCLUSIONS: To the best of our knowledge, the proposed MATCH sequence is the first 3D CMR technique that acquires spatially co-registered multi-contrast image sets in a single scan for characterization of carotid plaque composition. Our pilot clinical study suggests that the MATCH-based protocol may outperform the conventional multi-contrast protocol in several respects. With further technical improvements and large-scale clinical validation, MATCH has the potential to become a CMR method for assessing the risk of plaque disruption in a clinical workup. FAU - Fan, Zhaoyang AU - Fan Z FAU - Yu, Wei AU - Yu W FAU - Xie, Yibin AU - Xie Y FAU - Dong, Li AU - Dong L FAU - Yang, Lixin AU - Yang L FAU - Wang, Zhanhong AU - Wang Z FAU - Conte, Antonio Hernandez AU - Conte AH FAU - Bi, Xiaoming AU - Bi X FAU - An, Jing AU - An J FAU - Zhang, Tianjing AU - Zhang T FAU - Laub, Gerhard AU - Laub G FAU - Shah, Prediman Krishan AU - Shah PK FAU - Zhang, Zhaoqi AU - Zhang Z FAU - Li, Debiao AU - Li D LA - eng GR - R01 HL096119/HL/NHLBI NIH HHS/United States PT - Comparative Study PT - Evaluation Study PT - Journal Article DEP - 20140725 PL - England TA - J Cardiovasc Magn Reson JT - Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance JID - 9815616 RN - 0 (Contrast Media) SB - IM MH - Aged MH - Algorithms MH - Carotid Arteries/*pathology MH - Carotid Stenosis/*diagnosis/pathology MH - Computer Simulation MH - *Contrast Media MH - Feasibility Studies MH - Fibrosis MH - Hemorrhage/diagnosis/pathology MH - Humans MH - Image Interpretation, Computer-Assisted/*methods MH - Imaging, Three-Dimensional MH - Magnetic Resonance Angiography/*methods MH - Male MH - Middle Aged MH - Models, Cardiovascular MH - Necrosis MH - Pilot Projects MH - *Plaque, Atherosclerotic MH - Predictive Value of Tests MH - Reproducibility of Results MH - Signal-To-Noise Ratio MH - Vascular Calcification/diagnosis/pathology PMC - PMC4222690 EDAT- 2014/09/04 06:00 MHDA- 2015/03/31 06:00 PMCR- 2014/07/25 CRDT- 2014/09/04 06:00 PHST- 2014/03/14 00:00 [received] PHST- 2014/07/08 00:00 [accepted] PHST- 2014/09/04 06:00 [entrez] PHST- 2014/09/04 06:00 [pubmed] PHST- 2015/03/31 06:00 [medline] PHST- 2014/07/25 00:00 [pmc-release] AID - S1097-6647(23)00120-5 [pii] AID - s12968-014-0053-5 [pii] AID - 10.1186/s12968-014-0053-5 [doi] PST - epublish SO - J Cardiovasc Magn Reson. 2014 Jul 25;16(1):53. doi: 10.1186/s12968-014-0053-5.