Demonstration of Ventricular Aneurysms by Radioisotope Scanning

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Abstract
Radioisotope scanning of the cardiac blood pool after the intravenous injection of I131-iabeled iodipamide was carried out in 14 patients with ventricular aneurysm. In 4, the aneurysm could be demonstrated on neither the anteroposterior chest roentgenogram nor the scan. In 5, the aneurysm was apparent on the radiograph, but the blood pool did not enter the area, suggesting a thrombus within the aneurysm. In 5, the aneurysm was detectable on the film and was also seen to be filled with radioactivity on the scan. Presumably these findings showed that a thrombus had not yet formed. Blood pool radioisotope scanning appears to be another tool in the diagnosis of ventricular aneurysm, useful also in demonstrating in some patients the presence or absence of an intraluminal clot within the aneurysm.

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