Radiological study of arterial calcification

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Abstract
With microradiological equipment, aortic arches and the large arteries in the necks of 25 patients coming to autopsy were examined for calcifications. The advantages of the present X-ray technique over ordinary X-rays are the higher power of resolution, which enables smaller calcifications to be discovered, and the use of softer radiation, which facilitates visualization of other structures of the arterial wall so that calcifications may be localized in relation to them. The most common sites for calcification were the cavernous portion of the internal carotid artery, the aortic arch, and the carotid sinus. Other locations commonly containing calcifications were the departure of the left subclavian artery from the innominate artery, the departure of the vertebral arteries from the subclavian arteries, and the passages of the vertebral arteries through the dura. Calcifications demonstrated radiologically were classified in relation to arteriosclerotic intimal changes visible macroscopically after gross Sudan staining. The petrous and cavernous portions of the internal carotid arteries and the vertebral arteries at their passage through the dura were often calcified, although the intima did not show any changes here. In other arteries, calcifications were only demonstrated in association with fibrous plaques.

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