By Professor Dr. Gianni Boris Bradač, Priv.-Doz. Dr. Roland Oberson (auth.)
Although it could actually appear a rash, even ill-conceived, project to commit a mono graph to cerebral angiography at a time while CT seems an important neuroradiologic approach, this can be certainly no longer the case. additionally, the authors are conscious of the need of taking those new recommendations into consideration. Cerebro-arterial occlusive ailments are often the reason for acute and chro nic neurologic disturbances. The authors' target in getting ready this ebook used to be to illustrate the price of neuroradiology within the analysis of those stipulations. they've got comprehensive their objective, and in particular, they've got succeeded in demonstrating how angiography and CT supplement one another. They indicate absolutely the necessity of top of the range in angiographic imaging; certainly, arterial occlusive ailments could have a really capricious and unforeseen evolution that may be followed-up by means of iterative CT examinations - for example as soon as per week - yet angiography, that's played just once, has to be as ideal and informative as attainable. either authors got a part of their education within the Neuroradiologic go away ment of the college sanatorium in Strasbourg. i'm therefore more than happy to discover during this ebook either the perfection i used to be conversant in seeing in G. B. BRADAc's iconography and the sound judgement I continuously favored in R. OBERSON. for that reason, it really is with nice delight that I write this foreword. it truly is my want that either authors in attaining the popularity they rightfully deserve within the Univer sities of Berlin and of Lausanne.
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Additional resources for Angiography in Cerebro-Arterial Occlusive Diseases: Including Computer Tomography and Radionuclide Methods
Irregularity of peripheral branches after a stroke can be a sign of recanalization. Examples are presented in Figs. 58-66. 3 A Vessel-Poor Area This finding is clearly a secondary sign in those cases where the angiogram shows the occlusion of one or more branches (see Sect. 2; Figs. 58, 59 and 62-65). A vessel-poor area can also be the only pathologic finding (6% in our material). In such a case we must assume a retrograde thrombosis extending from the point of the occlusion of the vessel to its origin, so that the angiogram showed only a vessel-poor area.
1978). , 1976). Finally, as pointed out by GADO et aI. (1976), the RBS shows only the recent lesion in patients with recent and old strokes whereas both lesions may have the same pattern on CT. 3 Characteristic Appearances Wedge Appearance. The radionuclide-uptake area often follows a vascular pattern. The characteristic image in shape, size, and location correlates with the territory of the involved artery. 41 Anterior Cerebral Artery. Infarction of this territory gives rise to a para sagittalperipheral uptake (Fig.
Comparisons with CT show that in the 1st week CT is more frequently positive than RBS. Between the 2nd and 4th week both examinations are almost equally positive. From the 5th week on RBS becomes negative, whereas CT remains positive. , 1978). , 1976). Finally, as pointed out by GADO et aI. (1976), the RBS shows only the recent lesion in patients with recent and old strokes whereas both lesions may have the same pattern on CT. 3 Characteristic Appearances Wedge Appearance. The radionuclide-uptake area often follows a vascular pattern.