脳動脈加令過程のレ線学的研究 : 第1報(<特集>脳と神経の研究II)

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An attempt of the grading of the aging-process by means of angiography was made. First of all, 1) diversity of blood vessel diameter and rigidity of its wall contour, 2) coiling and kinking of the blood vessel 3) aneurysms 4) obstruction, were chosen as indicators to designate arteriosclerosis. Hence the following four types were classified. Type I : Without any of the findings mentioned above. Type II : With these findings only in internal carotid artery. Type III : With these findings in anterior, middle and posterior cerebral arteries but not in internal carotid artery. Type IV : With these findings not only in internal carotid artery but also in peripheral arteries. Angiograms of 196 subjects (without space-taking lesions and arterio-venous malfor mations) were divided into these four types to investigate the age incidence and angiographic type. With advance in age, a gradual shift from Type I to Type IV was observed with the transitional zone in fifth decade (Fig. 1), and it seemed that this classification might be satisfactory to indicate aging-process. To certify this proposition, angiograms were studied on 75 cases of general paresis, who were known to have poor life prognosis. The paretics, showing higher percentage of Type III and IV in fourth and fifth decade than those of non-paretics, had the transitional zone in fourth decade (Fig. 2). As it indicates that paretics are in far advanced stage of aging-process, these findings are remarkably consistent with clinical outcome. Therefore, it is tentatively suggested that this classification is satisfactory for a survey of aging-process by angiograms.
千葉大学の論文
1965-11-28

脳動脈加令過程のレ線学的研究 : 第1報(<特集>脳と神経の研究II)

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