Abstract
Intravenous angiocardiography in a series of 11 patients with arteriosclerotic (post-myocardial infarction) left ventricular aneurysms permitted evaluation of the size and shape of the aneurysm, thickness of the myocardial wall, and thrombus. Assessment of the hemodynamic effect of the aneurysm was also obtained from study of the emptying and contraction states of the opacified aneurysm and ventricle. Conventional roentgenography and roentgenoscopy in all positions, by demonstrating unusual bulging, calcification, and pulsation of the ventricule, suggested the diagnosis of ventricular aneurysm in 10 cases; angiocardiography confirmed it. In 1 patient, a ventricular septal aneurysm, undetected by conventional roentgenographic techniques, was revealed by angiocardiography. Selective left ventricular angiography and coronary arteriography are particularly recommended for securing significant indications for operative treatment (aneurys-mectomy) because these techniques permit both the recording of pressures in the ventricle and aneurysm and the evaluation of the state of the coronary arterial circulation. Finally, angiocardioggraphy allows differentiation of myocardial aneurysms from cardiac tumors, adjacent medias tinal tumors, and pericardia! cysts and effusions.

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