[Value of tomoscintigraphy with Fourier analysis in the diagnosis of arrhythmogenic right ventricular cardiomyopathy].
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1 juillet 1997
- handle: 10670/1.d2m21w
- hal: hal-03679847
- PUBMED: 9339254
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info:eu-repo/semantics/altIdentifier/pmid/9339254
Mots-clés
MESH: Adolescent MESH: Adult MESH: Hypertrophy, Right Ventricular MESH: Male MESH: Middle Aged MESH: Prognosis MESH: Radiography MESH: Radionuclide Angiography MESH: Reproducibility of Results MESH: Sensitivity and Specificity MESH: Stroke Volume MESH: Aged MESH: Arrhythmias, Cardiac MESH: Cardiomyopathies MESH: Cardiomyopathy, Dilated MESH: Female MESH: Fourier Analysis MESH: Gated Blood-Pool Imaging MESH: HumansCiter ce document
D Casset-Senon et al., « [Value of tomoscintigraphy with Fourier analysis in the diagnosis of arrhythmogenic right ventricular cardiomyopathy]. », HALSHS : archive ouverte en Sciences de l’Homme et de la Société, ID : 10670/1.d2m21w
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Résumé
ECG gated blood pool tomography has been performed in sixteen patients with right ventricular arrhythmias in whom the diagnosis of arrhythmogenic right ventricular cardiomyopathy was made based on the finding of abnormalities on contrast angiography. They were compared both to control subjects and to patients with primary dilated cardiomyopathy. Thick slices of ventricles were obtained throughout the cardiac cycle in three orthogonal planes: horizontal long axis and short axis thick slices for analysis of right and left ventricular regional wall motion abnormalities and analysis of the spread of the contraction by means of Fourier phase imaging, vertical long axis slices (one for each ventricle) for ejection fractions, because of easy and reproducible determination of valvular planes and analysis of all right ventricular segments, especially the pulmonary infundibulum. Five typical right ventricular abnormalities were seen: decreased ejection fraction (32 +/- 15% vs 55 +/- 3% in control; p < 0.001), increased diameter (ratio of right to left diameters = 1.2 +/- 0.3 vs 0.9 +/- 0.1; p < 0.01), global delayed contraction versus that of the left ventricle (22 +/- 20 degrees vs -2 +/- 6%; p < 0.01), increased dispersion of contraction (32 +/- 16 degrees vs 13 +/- 4 degrees; p < 0.01) and presence of segments with decreased and/or delayed contraction. Right ventricular disease was observed in all the patients: localized form (56%), diffused form (44%). This method provides accurate functional data for diagnosis and follow-up of patients. In future, this wall motion evaluation method may replace planar nuclear angiography as myocardial SPECT have replaced myocardial planar scintigraphy.