RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin · 1998
[MRI diagnosis of right ventricular dysplasia].
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Sommer T, Lewalter T, Bierhoff E, Pakos E, von Smekal A, Pauleit D, Hofer U, Lüderitz B, Schild H
Аннотация
PURPOSE: Right ventricular dysplasia (RVD) represents an important cause of sudden death and ventricular arrhythmias in young patients. The aim of this study was to describe diagnostic diagnostic criteria and the MR-tomographie aspects of the disease.
METHODS: 34 patients with clinically suspected RVD were examined by 0.5-T MRI (cardiac-gated T1-weighted spin echo sequences and cine gradient echo sequences). RVD was confirmed in 16 patients and ruled out in 18 patients. MR images were evaluated for presence of: 1. right myocardial fatty infiltration, 2. dilatation of the right ventricle, 3. dilatation of the right ventricular outflow tract, and 4. localised right ventricular aneurysm.
RESULTS: Right myocardial fatty infiltration was detected by MRI in 11 of 16 patients (69%) with RVD. Dilatation of the right ventricle was seen in 5 patients, dilatation of the right outflow tract in one patient, and localised right ventricular aneurysm in two patients with RVD.
CONCLUSIONS: MRI is able to demonstrate fatty replacement of right ventricular myocardium in most cases and plays an important role in the diagnosis of RVD.
METHODS: 34 patients with clinically suspected RVD were examined by 0.5-T MRI (cardiac-gated T1-weighted spin echo sequences and cine gradient echo sequences). RVD was confirmed in 16 patients and ruled out in 18 patients. MR images were evaluated for presence of: 1. right myocardial fatty infiltration, 2. dilatation of the right ventricle, 3. dilatation of the right ventricular outflow tract, and 4. localised right ventricular aneurysm.
RESULTS: Right myocardial fatty infiltration was detected by MRI in 11 of 16 patients (69%) with RVD. Dilatation of the right ventricle was seen in 5 patients, dilatation of the right outflow tract in one patient, and localised right ventricular aneurysm in two patients with RVD.
CONCLUSIONS: MRI is able to demonstrate fatty replacement of right ventricular myocardium in most cases and plays an important role in the diagnosis of RVD.