Search Results

You are looking at 1 - 10 of 55 items for :

  • "microangiography" x
Clear All
Restricted access

Red Cerebral Veins

A Report on Arteriovenous Shunts in Tumors and Cerebral Scars

William Feindel and Phanor Perot

. J. Anat., Lond. , 1963 , 97 : 631 – 632 . Sanders , A. G. Microcirculation in grafts of normal and malignant tissue. J. Anat., Lond. , 1963, 97: 631–632. 22. Saunders , R. L. de C. H. Microangiography of the brain and spinal cord. In: X-ray microscopy and X-ray microanalysis . A. Engström , V. Cosslett , and H. Pattee , Ed. Amsterdam : Elsevier Publishing Co. , 1960 , x , 542 pp. (see pp. 244 – 255 ). Saunders , R. L. de C. H. Microangiography of the brain and spinal cord. In: X

Restricted access

Blood Supply of Cervical Spinal Cord in Man

A Microangiographic Cadaver Study

Ian M. Turnbull, Alf Brieg and Ove Hassler

demonstrate small vessels clearly. We have thought it worthwhile to restudy the blood supply of the cervical cord using both microdissection and microangiography, and can now provide the surgeon with a more accurate description of the arteries in this region. Material and Methods Cervical spinal cord specimens were obtained from 43 unselected cadavers prior to autopsy at the South Stockholm Hospital, Stockholm, Sweden. The mean age was 70 (range: 39 to 89); there were 26 males and 17 females. An air myelogram was done as part of an associated investigation, 7 then

Restricted access

Alf Breig, Ian Turnbull and Ove Hassler

. Cervical extension, patient prone, slack cord falls towards front of spinal canal. X-rays taken by A. F. El-Nadi. 9 Reprinted courtesy of Acta Radiologica, Stockholm. The present report describes the deformations of the cervical spinal cord caused by flexion and extension of the neck in subjects with and without spondylosis. Microangiography was used to see how the blood vessels of the spinal cord might be altered and also as the basis of a separate report on the blood supply of the cervical spinal cord. 36 The pathogenesis of the myelopathy of cervical

Restricted access

Larry C. Fried, Giovanni Di Chiro and John L. Doppman

had minimal neurological deficits. TABLE 1 Arteria radicullo-medullaris magna ligations No. Location of Vessel Method of Confirmation Functional Grade 784x left L-3 root inspection 0 B590 right L-1 root microangiography 1 2264 left L-1 root microangiography 0 C618 left T-9 root inspection 1 840 right L-1 root microangiography 1 964 right T-11 root microangiography 0 B710 right L-1 root microangiography 0 C19 left T-10 root inspection 1

Restricted access

Ian M. Turnbull

✓ The regional differences in spinal microvasculature are outlined from microangiographic examination of the human spinal cord. Five to eight central arteries arise from each centimeter length of the anterior spinal artery in the cervical region, two to five in the thoracic region, and five to twelve in the lumbosacral region. The central arteries in the cervical and lumbar cord in addition to being more numerous are of larger caliber than those in the thoracic cord. Terminal arterioles do not interconnect within the spinal cord but give rise to interlocking capillary networks, which are more numerous in the gray than in the white matter. Arteries in the lateral columns are elongated with flattening of the spinal cord due to a space-occupying lesion. Correlation of the distortion of the small vessels with various types of spinal cord displacement is described.

Restricted access

William Feindel

The authors of the papers collected here have attempted to answer certain questions regarding the microcirculation, particularly along anatomical lines. The session was opened by Dr. Wilder Penfield who posed certain hypotheses based on his continuing interest in the problems of the cerebral circulation: the innervation of cerebral vessels, the role of the circulation in epilepsy and in the production of epileptogenic scar tissue. Earlier work on microangiography of the brain was extended in two well-illustrated papers. The report by Professor Saunders and

Restricted access

Richard L. de C. H. Saunders and Mary A. Bell

activity, demonstrating neurono-vascular relationships. × 530. Right: Male, 39 years. X-ray projection microradiograph of a 35 µ section of the human cortex stained for both acid and alkaline phosphatase activity showing neurono-vascular relationships. Projection microradiograph, × 215. Material and Method Injected material described in this study was drawn from a collection of approximately 100 human brains ranging in age from newborn to 90 years, on which microangiography has been performed in this laboratory. The injection medium was either Micropaque or

Restricted access

David J. Fairholm and Ian M. Turnbull

injury. Blood has extravasated into the gray matter. × 12.5. Microangiography Normal microangiographs ( Figs. 2 and 3 ) showed filling of all parts of the vascular tree. Capillaries formed denser networks in the gray matter than in the white. The microvascular pattern closely resembled that of man. 16 Fig. 2. Microangiographs of normal spinal cord of rabbit. Left: Posteroanterior view. Right: Lateral view. × 10. Fig. 3. Microangiograph of transverse section 2 mm thick of rabbit normal spinal cord. × 12. In

Restricted access

Larry C. Fried and Robert Goodkin

-centimeters (gm-cm) force was produced, all other injuries ranged from 400 to 600 gm-cm of force. These impacts were sufficient to produce irreversible paraplegia. We substituted a polyethylene impounder for the metallic impounder and saddle used by Albin, et al. Those animals not sacrificed the day of trauma were observed for recovery of motor power. Microangiography was performed on traumatized and normal spinal cords by the following method. Animals were heavily anesthetized, and both femoral arteries were exposed and ligated. A polyethylene catheter (PE 160) was

Restricted access

Sinsuke Hukuda and Charles B. Wilson

arteries was done as described above. Sacrifice Micropaque injection, removal and examination of the cords, and microangiography were done in all dogs except two CVI-I dogs (Dogs 39 and 40) in which Micropaque was not injected. Method: Establishment of Combined Maximal Tolerable Compression and Chronic Vascular Insufficiency Fifteen dogs with MTC were used. In four dogs, CVI-I was established in two-stage operations; in 11 dogs, CVI-II was established in one-stage operations. These CVI operations were not done until the dogs had recovered from the MTC