By Gabor Szikla M.D., Guy Bouvier M.D., Tomokatsu Hori M.D., Vassil Petrov M.D. (auth.)
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Additional info for Angiography of the Human Brain Cortex: Atlas of Vascular Patterns and Stereotactic Cortical Localization
By following different sulci as they appear in the different projections of the same hemisphere, the importance of perspective foreshortening is strongly emphasized. This in turn should remind us that in the usual radiographic summation pictures, anatomic understanding of the peripheral parts of the images can only be obtained by taking into account the same foreshortening effect. Comparison of the photographs and the diagrams of the different hemispheres shown in this chapter will at the same time bring out the constant elements and trends of folding, that is, the basic surface pattern, as it emerges through the individual variability of secondary features.
Anatomic and physiologic data gathered from 20 specimens and 30 epileptic patients reported on the standard grid show a fairly good correlation in localizing motor responses between precentral gyrus and internal capsule (3) Statistical localization of lateral projection of some sulci on the proportional grid. _ ..... E F G H Chapter II The Basic Surface Pattern of the Human Brain Cortex, Seen in Orthogonal Projections 27 Chapter II As mentioned in the Introduction, one of the major obstacles to the anatomic understanding of cortical angiograms seems to be difficulty in conceiving the three-dimensional anatomy of the brain surface as it really is - and as it appears in radiographic projections.
Depression of sylvian fissure only is present. Fanlike distribution of arteries. (2) Late fifth month. Deepening of sylvian fissure and appearence of central sulcus. (3) Middle of sixth month. Progressing formation of sylvian fissure with parallel folds (Superior tem- 34 coil 9 poral, inferior frontal sulci). On both sides of the still straight central sulcus, parallel precentral and postcentral sulci begin to appear. 75. Diagram of sulci in an eighth-month fetal brain (after RETZIUS: Das Menschenhirn, Plate XXIX, 1896) Plate II-4 Plate II-4 (1)- (6) Basic pattern of the cortex is already present in the eigth intrauterine month.
Angiography of the Human Brain Cortex: Atlas of Vascular Patterns and Stereotactic Cortical Localization by Gabor Szikla M.D., Guy Bouvier M.D., Tomokatsu Hori M.D., Vassil Petrov M.D. (auth.)