Prevalence and Signal Characteristics of Late Gadolinium Enhancement on Contrast-Enhanced Magnetic Resonance Imaging in Patients With Takotsubo Cardiomyopathy

この論文にアクセスする

この論文をさがす

著者

抄録

<b><i>Background:</i></b> To determine the prevalence and signal intensity (SI) characteristics of late gadolinium enhancement (LGE) on magnetic resonance imaging (MRI) in takotsubo cardiomyopathy (TC). <b><i>Methods and Results:</i></b> Cine, black-blood T2-weighted and LGE MR images were acquired in 23 patients with TC within 72h of onset. Wall motion abnormality (WMA), edema and LGE were evaluated with a 16-segment model. The SI characteristics of LGE were analyzed using SI distribution in remote normal segments as reference. Follow-up MRI was performed 3 months later. Retrospective analysis of LGE MRI was also performed in 10 patients with acute myocardial infarction (AMI) to compare the SI characteristics between TC and AMI. In acute phase, WMA and edema were observed in 236 (64%) and 205 (56%) of 368 segments. LGE was observed in 10 (2.7%) of 368 segments and in 5 (22%) of 23 patients. All LGE lesions in TC exhibited transmural enhancement. The contrast-to-noise ratio (CNR) in TC was significantly lower than that of AMI (3.1±0.3 standard deviations (SD) vs. 6.1±1.2 SD, P<0.01), and CNR value of 4 was useful for distinguishing TC from AMI. Both LGE and WMA disappeared within 12 months. <b><i>Conclusions:</i></b> Grey myocardial signal on LGE MRI may be observed in patients with TC. However, the extent of LGE is substantially less than that of WMA and edema, and disappears within 12 months. (<i>Circ J</i> 2012; <b>76:</b> 914-921)<br>

収録刊行物

  • Circulation journal : official journal of the Japanese Circulation Society

    Circulation journal : official journal of the Japanese Circulation Society 76(4), 914-921, 2012-03-25

    一般社団法人 日本循環器学会

参考文献:  36件中 1-36件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10030131337
  • NII書誌ID(NCID)
    AA11591968
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13469843
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
ページトップへ