Abstract
Thoracic aortography is a specialized and invaluable method of radiological examination which should be done only in centers equipped for specialized work, and by experienced operators who know the difficulties involved and have the knowledge and experience of dealing with them as they may, and will, arise. The prudent radiologist practicing any form of angiography should be well versed in measures to be adopted in the case of cardiac arrest as recommended by Milstein (1956) and should be capable of performing a thoracotomy and initiating cardiac massage if the occasion arises.
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