The authors examined the lenticulostriate (perforating) arteries in vascular casts of 48 middle cerebral (MCA), as well MRI or CT scans 32 patients with infarcts MCA territory. ranged between two and 12 number, from 80 microm to 1,400 size. They originated main trunk, terminal trunks, bifurcation site, and/or leptomeningeal branches MCA, either separately common trunks (70.8%). extreme variations supplying region perforators were noted seven anatomic specimens. In addition basal ganglia,...

Perforating branches of the middle cerebral arteries (MCA) were examined on forebrain hemispheres fourteen human brains. It was noticed that their intracerebral segments arose from MCA main trunk, and its terminal collateral (cortical) branches. They terminated in certain parts basal ganglia internal capsule. The course, direction, shape, diameters these detail. Classification all vessels made according to caliber. concluded size lacunar infarcts depends caliber ramification zone extent...

Perforating branches of the middle cerebral artery (MCA) were examined under magnification in 50 formalin-fixed brain hemispheres. vessels varied number from three to 18, with an average nine. The greater vessels, smaller was their diameter. In this study, perforating arteries divided into medial, middle, and lateral groupings. Those medial group usually arose directly MCA main trunk close carotid bifurcation. There group, which originated not only trunk, but also collateral (cortical)...

The perforating branches of the basilar artery were examined in 14 brain stems injected with india ink or methylmethacrylate. Three groups perforators distinguished: caudal, middle, and rostral. caudal varied number from two to five diameter 80 600 microns. In addition their terminal branches, which entered foramen cecum, occasionally branched off pontomedullary artery, pyramidal vessels, hypoglossal branches. middle arose either separately along collateral They ranged nine 210 940 gave rise...

<h3>BACKGROUND AND PURPOSE:</h3> During surgery to treat an aneurysm in the anterior communicating artery, injury subcallosal a perforator of may lead infarction that produces basal forebrain amnesia after surgery. Our purpose was examine whether 3D MR imaging can detect artery patients with for aneurysm. <h3>MATERIALS METHODS:</h3> We evaluated 3D–T2-weighted images obtained median 4 months treatment presence infarcted foci 10 consecutive postoperative amnesia. Because and its neighboring...

The most reliable data about arterial variations, which are very important in surgery and radiology, can be obtained from a large series of patients.We examined angiographic multislice computerised tomography (MSCT) images group 1,265 patients 1 dissected specimen.While 946 (74.72%) the normal vascular pattern (type I) was noticed, remaining 320 (25.28%) variations branches aortic arch were found, classified into types II through VIII few subtypes. Type (2.84%) comprised common origin left...

Twenty-eight abducent nerves were examined after injecting india ink and gelatin into the vertebrobasilar arterial system. All found to be crossed and/or penetrated by surrounding vessels. The ventral surface of was anterior inferior cerebellar artery (AICA) (75.0%), posterior (17.85%), common trunk AICA (7.14%), internal auditory (14.28%), anterolateral (46.43%), pontomedullary (92.86%), corresponding veins (46.43%). dorsal cisternal segment (35.71%), inferolateral pontine (10.71%),...

The thalamogeniculate (TG) arteries of 30 forebrain hemispheres were examined. These vessels varied from 2 to 12 in number (mean, 5.7), and 70 580 microns caliber 345.8 microns). average all the TG per posterior cerebral artery ranged 700 3400 1972 most often originated as individual vessels; however, 26.67% examined they shared a common site origin, 33.33% arose stems. stems 320 800 diameter 583 branches crural or ambient (P2) segment 80% hemispheres, P2 quadrigeminal (P3) 20%, both distal...

The microanatomical examination of the uncal and parahippocampal arteries was performed in 17 brain hemispheres injected with India ink gelatin. mentioned may originate from anterior choroidal artery, internal carotid middle cerebral posterior artery. or unco-parahippocampal branches artery were divided into rostral caudal; former present 70.6%, latter 94.1%. which originated 1.4 to 4.2 mm its bifurcation site, existed 58.8%. same most often arose temporopolar 64.7%. Finally, these usually...

Despite detailed studies of the perforating arteries, their relationships with leptomeningeal arteries are almost unknown. These can be great significance during neurosurgical operations.The hemispheres, which ranged in number from 17 to 36, were injected india ink or methylmethacrylate.The vessels noted arise following arteries: subcallosal branch anterior communicating artery (26.6%); median corpus callosum (6.6%); medial orbitofrontal (6.6%) and olfactory (3.3%) cerebral artery; accessory...

The authors examined 31 patients with moyamoya disease in Yugoslavia. Among them four intracranial aneurysms were disclosed, two males and others females. aneurysms, which present adult only, diagnosed angiographically. Three of died several days or weeks after onset hemorrhage. located within the basal abnormal vascular network, on a distal branch posterior cerebral artery, top basilar middle meningeal artery. side individual was most often stage III IV.

Background and Aim: In the present study, we have hypothesized that volume changes of caudate nucleus, putamen, globus pallidus, hippocampus, thalamus, lateral ventricle in newly-diagnosed, male PTSD patients without therapy are more pronounced those with headaches. To confirm or reject our hypothesis, undertaken an extensive study forty-nine patients.

The occipital branches of the posterior cerebral artery were examined in 31 human brains. authors determined origin, course, and region supply each branch: parieto-occipital, calcarine, temporal, common temporal arteries, as well lingual gyrus artery. These vessels found all brains except artery, which was present only 8.3%. noted to variable cortical regions. In addition, they sometimes took part irrigation deep forebrain structures. It concluded that occlusion a certain may cause varying...

Thirty-three injected human brains were examined, and anastomotic vessels found in 26 (79%) of them. Anastomoses varied number from one to six. The mean diameter was 148 microns, the length 3.3 mm. observed among following: branches single thalamoperforating vessel posterior cerebral artery (PCA), individual arteries same PCA, basilar superior cerebellar on side, peduncular PCA ipsilateral arteries, side various contralateral vessels. could be important components collateral circulation...