Posttraumatic syringomyelia was studied in 15 patients. Gas myelography in 12 patients showed a definite spinal cord swelling in 10 and a probable cord enlargement in two. Plain spinal computed tomography (CT) in four patients demonstrated intramedullary radiolucent zones in three. After intrathecal injection of metrizamide in 10 patients, cysts were opacified in eight. Postoperative CT in two ...

Two nonionic contrast media, iopamidol and metrizamide (Amipaque), were used for cervical myelography (C1-C2 puncture) in 95 consecutive patients. Both contrast media gave excellent radiographic results. Headache and vagal symptoms were similar in both groups, whereas metrizamide produced more electroencephalographic changes and epileptic seizures. Meningeal irritation occurred in both groups a...

To characterize spinal cord effects of needle placement using lumbar puncture myelography technique, lumbar puncture was performed in 5 dogs and computed tomography images of the spinal column were acquired in the transverse plane at the level of the puncture site after contrast injection and both before and after needle removal. The spinal cords were punctured during needle placement and paren...

Myelography of the entire spinal cord was performed in 64 consecutive patients using metrizamide via lumbar puncture. Adequate to good opacification of the cervical and thoracic subarachnoid space was obtained in 63 patients. The technical factors responsible for this success rate are patient cooperation, high iodine concentration, high iodine concentration (250 mg/ml), slow injection rate, del...

The operative findings in two very similar groups of patients after laminectomy for lumbar disc lesions were assessed. In one group of 55 patients mefrizamide radiculography was always performed before the operation but in the other historical confrol group of 65 patients Myodil myelography had only rarely been done. The results showed that the incidence of positive findings at operation was re...

A 47-year-old man with Hirayama's disease who developed cervical spondylotic amyotrophy (CSA) is presented. The patient had noted weakness and atrophy of hand and forearm muscles bilaterally at the age of 16. At the age of 40, he developed proximal muscle atrophy and weakness bilaterally after 20 years of a non-progressive state. Myelography and computed tomography (CT)-myelography revealed tha...

Iotrol, a new nonionic, water-soluble, hexiodinated dimeric contrast medium for myelography, was used in clinical trials in 29 patients. The purpose of the study was to acquire information on local and general tolerance, distribution and excretion, and image quality. Preliminary results show that iotrol is well suited for lumbar and thoracolumbar myelography. Side effects observed with the use ...

The herniation of intervertebral disk material into the dural sac is a rare occurrence; a total of 50 cases have been reported in the literature. Forty-five (90%) are reported in the lumbar spine, most at the L4-L5 interspace, three (6%) in the cervical spine [1 , 2, 3], and two (4%) in the thoracic spine [4]. The lesion is reported to have a typical , irregular intradural defect on myelography...

Conray-280 (meglumine iothalamate) can be injected safely into the cisterna magna in the human. In this series of 46 patients no complications were encountered attributable to the irritant effects of Conray. Satisfactory radiographic visualization was obtained in 87% of cases using 5 ml. 50% solution of Conray-280 enabling clear delineation of the anterior and posterior borders of the spinal co...

Bloody cerebrospinal fluid is thought to increase the risk of arachnoiditis from myelography with iophendylate, but not with aqueous media. An experimental study was undertaken of the effects of metrizamide, iocarmate, and blood, independently and in mixtures, on the production of arachnoid fibrosis. Monkeys exposed to a mixture of iocarmate or metrizamide and blood developed no more significan...