The value of magnetic resonance imaging of the left ventricular outflow tract in patients with hypertrophic obstructive cardiomyopathy after septal artery embolization

被引:49
作者
Schulz-Menger, J [1 ]
Strohm, O [1 ]
Waigand, J [1 ]
Uhlich, F [1 ]
Dietz, R [1 ]
Friedrich, MG [1 ]
机构
[1] Humboldt Univ, Max Delbruck Ctr Berlin Buch, Fanz Volhard Klin, D-13125 Berlin, Germany
关键词
hypertrophy; cardiomyopathy; magnetic resonance imaging; embolism; ventricular outflow obstruction;
D O I
10.1161/01.CIR.101.15.1764
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background-We tested the value of magnetic resonance imaging (MRI) in the follow-up of patients with hypertrophic obstructive cardiomyopathy after septal, artery embolization. MRI provides a noninvasive visualization of transplanar turbulent now in order to quantify left ventricular outflow tract obstruction. Methods and Results-We followed 10 patients who were treated with septal artery embolization for 12 months. We used gradient echo sequences to document continuous improvement of the outflow tract area and T1- and T2-weighted spin echo sequences to visualize myocardial infarction. A continuous, but not linear, improvement of the outflow tract area occurred after septal artery embolization during the 12-month follow-up period. The improvement of the outflow tract area correlated well with the amelioration of symptoms (r(2)=0.86). Conclusions-We conclude that MRI reliably detects the degree of obstruction in patients with hypertrophic obstructive cardiomyopathy. This modality may be especially useful for follow-up after septal artery embolization.
引用
收藏
页码:1764 / 1766
页数:3
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