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Biomedical subjects

H Vogelsang

Publications and source records attributed to H Vogelsang.

At least 163 records · Page 9Linked to original sources
PubMed1983

[Radiological findings in Recklinghausen's neurofibromatosis].

The basic abnormality of neurofibromatosis consists not only of a maldevelopment of the neuroectoderm but also of the mesoderm. Therefore any organ or system of the body may be involved. Following a short clinical review of the central (acoustic) and peripheral type the well known and the more unusual radiographic findings are summarized. They include cranial and intracranial manifestations (orbitosphenoid dysplasia, bone defects of the skull, acoustic neuroma, glioma of the optic nerve and chiasm, meningioma), spinal lesions (scoliosis, vertebral scalloping, meningocele, neuroma, ependymoma), skeletal abnormalities (pseudarthrosis), cardiovascular manifestations, pulmonary fibrosis, tumors of the gastrointestinal and urinary tract and different endocrinopathies. Some of the roentgenologic symptoms are very characteristic and allow definitive diagnosis.

Bone Neoplasms↗
PubMed1982

[Stereo magnification angiography--its application in neuroradiology (author's transl)].

The article discusses the stereo magnification technique using the Stereolix system and explains its clinical application in neuroradiology. The special advantage of the Stereolix tube is that it can be used in routine procedure, since it is suitable both for normal serial angiography and--by pressing a button--for stereo magnification angiography. The emphasis of trials was on the applicability for spinal angiography and in the diagnosis of cerebral aneurysms and arteriovenous angiomas.

Angiography↗
PubMed1982

[Lumbar spinal stenosis].

Lumbar spinal stenosis is a condition of polyetiologic origin. It is defined as narrowing of the spinal canal, the nerve root canals or the intervertebral canals. For clinical, diagnostic and therapeutic reasons it may be divided into two main types: central and lateral stenosis with obstruction of the lateral recesses. Plain radiographs may be suggestive in central or generalized narrowing only. Diagnosis is confirmed by additional investigations, i.e. myelography and CT. Lumbar myelography allows definitive diagnosis of central spinal stenosis. However, validity regarding visualization of the lateral recesses is limited and a decision on the nature of the obstruction, bony or soft tissue, cannot be made. In contrast, CT does support information on the bony outline of the lateral recess as related to the facet and soft tissue structures in particular. Treatment of choice should be conservative-supportive if clinical symptoms permit. Surgery is indicated when there is intolerable pain, progressive muscle weakness or sphincter dysfunction. Surgery seeks to attain complete decompression of neural elements, if instability is present or imminent spinal fusion has to be considered. Shape, size and configuration of the spinal canal have to be determined prior to any surgical approach. CT fulfills these requirements most admirably.

Aged↗
PubMed1981

[Myelography with amipaque in infants and children (author's transl)].

The non-ionic water-soluble contrast medium Amipaque (metrizamide) shows a lowered neurotoxicity, and therefore it may be used in the entire spinal canal. The better visibility of fine structures compared with oily and gaseous contrast media allows an excellent diagnostic approach to all spinal affections. Our technique of myelography is described and typical examples are given.

Adolescent↗
PubMed1979

[Spinal irritation after myelography with Amipaque in patients with kyphoscoliosis (author's transl)].

Two patients with severe kyphoscoliosis developed marked spinal irritation following myelography with the new non-ionising contrast medium Amipaque. The authors raise the possibility that the spinal deformity may result in reduced flow of cerebro-spinal fluid; this may prolong the contact of the contrast medium with the (previously damaged?) spinal cord. Patients with this type of spinal deformity require particularly stringent indications for the performance of myelography, even when using Amipaque.

Aged↗
PubMed1978

The effect of position of patient on the passage of metrizamide (Amipaque), meglumine locarmate (Dimer X) and ioserinate (Myelografin) into the blood after lumbar myelography.

Lumbar myelography was carried out with the contrast media Amipaque, Dimer X and Myelografin in 10 patients each. Five of the patients treated with each contrast medium were kept in a sitting position after the examination, the others lay flat. Blood levels and excretion were measured up to 24 h. The results are interpreted as follows: 1. After lumbar injection of the contrast media there is a short phase of distribution in the subarachnoid space (lag time) and they then are transferred into the blood with a half-life of 3.9 +/- 2.4 h. The transport from the CSF is almost completed approximately after 24 h. The velocity of transport varies greatly between the individual patients. Watersoluble contrast media presumably flow passively with the CSF through the arachnoid villi into the venous blood. 2. The horizontal position of the patient reduces the lag time until the beginning of the actual transfer of the contrast medium. 3. The transfer of Dimer X begins somewhat later compared with Amipaque and Myelografin.

Contrast Media↗
PubMed1978

[Myelography with metrizamide in children (author's transl)].

The non-ionic water-soluble contrast medium metrizamide (Amipaque) allows the examination of all regions of the spinal canal. Excellent visualization, the low toxicity for nervous tissue, and small side effects make metrizamide the best contrast medium for myelography, even in infants and children. The technique used is described and results are demonstrated.

Adolescent↗