Dual Gradient-echo In-phase and Opposed-phase Magnetic Resonance Imaging to Evaluate Lipomatous Metaplasia in Patients with Old Myocardial Infarction

Satoshi OKAYAMA; Shiro UEMURA; Hiroyuki SUGIMOTO; Satoshi ENOMOTO; Kenji ONOUE; Sawako OMORI; Tsunenari SOEDA; Satoshi SOMEKAWA; Ken-ichi ISHIGAMI; Makoto WATANABE; Tamio NAKAJIMA; Yasushi KUBOTA; Yoshihiko SAITO

doi:10.2463/mrms.9.85

Technical Note

Dual Gradient-echo In-phase and Opposed-phase Magnetic Resonance Imaging to Evaluate Lipomatous Metaplasia in Patients with Old Myocardial Infarction

Satoshi OKAYAMA, Shiro UEMURA, Hiroyuki SUGIMOTO, Satoshi ENOMOTO, Kenji ONOUE, Sawako OMORI, Tsunenari SOEDA, Satoshi SOMEKAWA, Ken-ichi ISHIGAMI, Makoto WATANABE, Tamio NAKAJIMA, Yasushi KUBOTA, Yoshihiko SAITO

Author information

Satoshi OKAYAMA
First Department of Internal Medicine, Nara Medical University
Shiro UEMURA
First Department of Internal Medicine, Nara Medical University
Hiroyuki SUGIMOTO
Department of Cardiology, Hirai Hospital
Satoshi ENOMOTO
Department of Cardiology, Hirai Hospital
Kenji ONOUE
First Department of Internal Medicine, Nara Medical University
Sawako OMORI
Department of Cardiology, Hirai Hospital
Tsunenari SOEDA
First Department of Internal Medicine, Nara Medical University
Satoshi SOMEKAWA
First Department of Internal Medicine, Nara Medical University
Ken-ichi ISHIGAMI
First Department of Internal Medicine, Nara Medical University
Makoto WATANABE
Department of Cardiology, Hirai Hospital
Tamio NAKAJIMA
Department of Cardiology, Hirai Hospital
Yasushi KUBOTA
Department of Radiology, Hirai Hospital
Yoshihiko SAITO
First Department of Internal Medicine, Nara Medical University

Keywords: dual-gradient-echo MRI, fat, out of phase, T₁WI, water

JOURNAL OPEN ACCESS

2010 Volume 9 Issue 2 Pages 85-89

DOI https://doi.org/10.2463/mrms.9.85

Details

Abstract

We present an alternative method for evaluating cardiac fat tissue-dual gradient-echo in-phase and opposed-phase magnetic resonance imaging (IPOP-MRI) with electrocardiographic (ECG) gating. Conventional IPOP-MRI can be used to evaluate small amounts of fat and is widely used for abdominal imaging, but cardiac motion artifacts make its use difficult for cardiac imaging. Using ECG gating prior to IPOP-MRI, we evaluated lipomatous metaplasia after myocardial infarction. The areas of lipomatous metaplasia measured by IPOP-MRI with ECG gating correlated well with those areas on black-blood T₁-weighted imaging (r=0.82, P<0.0001, mean bias−0.29 cm², limit of agreement±2.06 cm²).

Corresponding author

Register with J-STAGE for free!