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

2010 ◽  
Vol 9 (2) ◽  
pp. 85-89 ◽  
Author(s):  
Satoshi OKAYAMA ◽  
Shiro UEMURA ◽  
Hiroyuki SUGIMOTO ◽  
Satoshi ENOMOTO ◽  
Kenji ONOUE ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Myocardial Infarction ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Gradient Echo ◽  
Old Myocardial Infarction ◽  
Dual Gradient ◽  
Lipomatous Metaplasia

Feasibility of dual gradient-echo in-phase and opposed-phase magnetic resonance imaging for the evaluation of epicardial fat

2011 ◽  
Vol 52 (7) ◽  
pp. 723-729 ◽  
Author(s):  
Satoshi Okayama ◽  
Seno Ayako ◽  
Satoshi Somekawa ◽  
Shiro Uemura ◽  
Yasushi Kubota ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Epicardial Fat ◽  
Resonance Imaging ◽  
Gradient Echo ◽  
Dual Gradient

scholarly journals Intravoxel Incoherent Motion Magnetic Resonance Imaging with Integrated Slice-specific Shimming for old myocardial infarction: A Pilot Study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Shi-Feng Xiang ◽  
Xue-Qiang Zhang ◽  
Su-Jun Yang ◽  
Yun-Yun Gao ◽  
Bu-Lang Gao ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Myocardial Infarction ◽  
Magnetic Resonance ◽  
Myocardial Fibrosis ◽  
Normal Control ◽  
High Capacity ◽  
Intravoxel Incoherent Motion ◽  
Receiver Operating Curve ◽  
Resonance Imaging ◽  
Old Myocardial Infarction

AbstractCurrently, little is known regarding the value of quantitative parameters derived from the intravoxel incoherent motion (IVIM) magnetic resonance imaging (MRI) with integrated slice-specific shimming (iShim) sequence in detecting old myocardial infarction and myocardial fibrosis. This study was to investigate the value of IVIM-MRI with iShim sequence in diagnosing old myocardial infarction and fibrosis. Thirty-five patients with both old myocardial infarction and myocardial fibrosis and 12 healthy volunteers were prospectively enrolled to undergo cardiac diffusion-weighted imaging (DWI) using seven b-values (0, 20, 60, 80, 120, 200 and 600 s/mm2). The iShim sequence was used for IVIM data acquisition, and the diffusion parameters, D, D* and f values for IVIM, and conventional apparent diffusion coefficient (ADC) were evaluated on the anterior, posterior and lateral walls of the ventricular septum using the short axis of the heart. Significant differences were found in the D, D* and f values between healthy subjects and patients with old myocardial infarction and myocardial fibrosis (P = 0.000), with the median value of the D and f significantly smaller in the myocardial infarction and fibrosis than in the normal control but the median value of D* significantly greater in the myocardial infarction and fibrosis than in the normal control. In the receiver operating curve analysis, the areas under the curve were 0.939, 0.988 and 0.959 for the D, D* and f values, respectively. The sensitivities and specificities were 84.6% and 94.4% for D, 88.9% and 84.6% for D* and 100% and 93.1% for the f values, respectively. In conclusion, the IVIM-derived parameters (D, D* and f) obtained using the iShim DWI technique showed high capacity in diagnosing old myocardial infarction and myocardial fibrosis by providing diffusion and perfusion information, which may have great importance in future clinical practice.

scholarly journals Magnetic resonance imaging of old myocardial infarction in young patients with a history of Kawasaki disease

2001 ◽  
Vol 24 (3) ◽  
pp. 247-252 ◽  
Author(s):  
Motoki Fujiwara ◽  
Naoaki Yamada ◽  
Yasuo Ono ◽  
Muneo Yoshibayashi ◽  
Tetsuro Kamiya ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Myocardial Infarction ◽  
Magnetic Resonance ◽  
Kawasaki Disease ◽  
Young Patients ◽  
Resonance Imaging ◽  
Old Myocardial Infarction ◽  
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