ABSTRACT
A conventional whole body CT scanner equipped for electrocardiographic gating was used to evaluate regional left ventricular function and the findings were compared with a corresponding analysis by two-dimensional echocardiography and left ventriculography. Twenty-two patients between the ages of 40 and 77 years with a documented anterior or posterolateral myocardial infarction were studied together with a control group comprising 10 patients. The gated CT studies were obtained using three 1 cm levels selected through the mid, apical, and basal regions of the left ventricle. Qualitative analysis of segmental wall motion (p less than 0.0001) correlated with angiography in 82% and with two-dimensional echocardiography in 86% (p less than 0.0001). Computed tomography correctly identified the location of prior myocardial infarction in all but one patient. The results of this study suggest that gated CT may provide an accurate assessment of regional left ventricular function (for anterior and posterolateral myocardial infarction) and that this technique may prove to be clinically useful if these early results are confirmed by further experience.
Subject(s)
Electrocardiography/methods , Heart/diagnostic imaging , Tomography, X-Ray Computed/methods , Adult , Aged , Angiocardiography , Echocardiography , Electrocardiography/instrumentation , Evaluation Studies as Topic , Female , Heart/physiopathology , Heart Ventricles/diagnostic imaging , Heart Ventricles/physiopathology , Humans , Hypertension/diagnosis , Male , Middle Aged , Myocardial Infarction/diagnosis , Tomography, X-Ray Computed/instrumentationSubject(s)
Heart Septal Defects, Ventricular/diagnosis , Adult , Angiography , Aortic Valve Insufficiency/etiology , Cardiomyopathies/diagnostic imaging , Echocardiography , Eisenmenger Complex/diagnostic imaging , Heart Septal Defects, Ventricular/complications , Heart Septal Defects, Ventricular/diagnostic imaging , Heart Septum/anatomy & histology , Humans , Infant , Infant, Newborn , MaleABSTRACT
Fifteen patients with an isolated ventricular chamber were studied using angiography. These patients constitute 7% of the 218 patients with single ventricle who were examined at our institution over a 10-year period. The atrial situs was solitus in 6 and isomeric in 9. The ventricular chamber showed 3 varieties based on trabecular pattern: right type, mixed and indeterminate. The atrioventricular (AV) connection was through 2 valves in 4 hearts, through a common AV valve in 8 and through a single valve in 3. The morphologic features of the ventricular chamber and the AV valves are considered the most important factors for planning surgical management.
