Biomedical subjects
Publications and source records attributed to C G Coin.
A technique for internal auditory cisternography is described. A small volume of Iophendylate is used and coronal hypocycloid tomographic sections of the dependent internal auditory canal and adjacent cerebellopontine angle cistern performed.
A catheter technique for encephalography utilizing a polyethylene catheter is described. The advantages are principally that it reduces the possibility of needle displacement during examination and thus the danger of extra-arachnoid injection of air.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
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We report here a new technique, computerized radiology of the colon. This technique consists of digital radiography of the colon combined with colon CT utilizing only air as a contrast agent. This technique is capable of detection of very small polyps. It is also useful in the study of diverticulitis of the colon. Comparison between CT and radiographic air contrast barium enema is demonstrated. In one case, a 13-yr-old girl who underwent total colectomy for familial polyposis, the surgical pathologic findings are also shown. Future potential of the technique is discussed including use as a mass screening method.
Progressive visual loss is the most common neurologic finding in osteopetrosis. Several mechanisms may explain this phenomenon, including compression of the optic nerves caused by bony overgrowth of the optic canals and retinal degeneration. We report a child with osteopetrosis and progressive visual loss, even though patent optic canals were demonstrated by computed tomography and digital holography. This patient's visual loss was caused by increased intracranial pressure secondary, to obstruction of cerebral venous outflow at the jugular foramen. This case points to the importance of a full evaluation of the skull base foramina in the diagnostic workup of visual loss in patients with osteopetrosis.