Non-contrast coronary artery wall and plaque imaging using inversion-recovery prepared steady-state free precession

BMC Medical Imaging

Research Article

Yasuyo Taniguchi¹  Masaru Ishihara²  Momoe Kawakami²  Takeshi Ishimoto³  Tosiaki Miyati³ 

[1] Department of Cardiology, Hyogo Brain and Heart Center, 520, Saisho-ko, 670-0981, Himeji, Hyogo, Japan;Department of Radiology, Hyogo Brain and Heart Center, 520, Saisho-ko, 670-0981, Himeji, Hyogo, Japan;Division of Health Sciences, Graduate School of Medical Science, Kanazawa University, 5-11-80, Kodatsuno, 920-0942, Kanazawa, Japan;

关键词: Coronary;    Plaque;    MRI;    SSFP;    Inversion recovery;   

DOI  :  10.1186/s12880-015-0071-2

 received in 2014-08-07, accepted in 2015-07-10,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundThe objective of this study was to investigate whether three-dimensional (3D) single inversion-recovery prepared steady-state free precession (IR-SSFP) could characterize the coronary artery wall.MethodsIR-SSFP was scanned on a 1.5-T MR scanner with a five element cardiac coil. One hundred and twenty-one subjects with known or suspected coronary artery disease who had undergone X-ray coronary angiography (XCA) underwent coronary artery wall imaging using IR-SSFP sequences. In each coronary segment, the detection of the coronary wall was categorized, and contrast (signal of plaque minus signal of blood in the aorta divided by the signal of plaque plus signal of blood in the aorta) was calculated.Results422 of 517 segments (82 %) were successfully visualized, and the detection scores tended to be higher at the proximal coronary artery when compared with other segments of the coronary artery. High contrast (contrast ≥ 0.75) areas were observed in 62 of 218 segments with ≥50 % coronary artery stenosis by XCA but also in 25 of 299 segments without ≥50 % coronary stenosis.ConclusionsIR-SSFP provided good visualization of the coronary wall. This approach represents a promising noninvasive strategy for the assessment of the coronary artery wall.

【 授权许可】

Unknown   
© Ishimoto et al. 2015. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.