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Biomedical subjects

M T Margolis

Publications and source records attributed to M T Margolis.

At least 19 recordsLinked to original sources
PubMed1977

Impact of computed tomography on utilization of cerebral angiograms.

In order to assess the effects of computed tomography (CT) of the brain on utilization of cerebral angiography, a retrospective analysis of three cohorts of patients was undertaken. Each cohort consisted of 50 consecutive patients receiving angiography either before a CT scanner was available, after installation of CT, or 1 year after CT. Since availability of CT, a progressive decrease in the proportion of angiograms that are normal has occurred (from 36% to 16%). Patients being evaluated for mass lesions account for the decrease. We conclude that CT is making neurodiagnostic evaluation more efficient and less invasive for patients with suspected mass lesions.

Adolescent↗
PubMed1976

A simple myelographic maneuver for the detection of mass lesions at the foramen magnum.

Popular belief and teaching has emphasized the necessity for supine myelography to avoid missing lesions on the dorsal aspect of the foramen magnum; however, this required not only additional time but also considerable discomfort for the patient. A simple maneuver added to the prone myelogram, requiring little additional time and no discomfort, virtually assures the detection of lesions at or near the foramen magnum. This technique has been used in 40 patients suspected of having either a demyelinating process or a mass lesion involving the high cervical cord. Eight Chiari malformations and 1 meningioma were demonstrated.

Adolescent↗
PubMed1975

Clinical, arteriographic, and cisternographic observations after removal of acute subdural hematoma.

The authors review 47 patients with closed-head injuries requiring treatment for acute subdural hematoma and report that 21 (45%) survived for 5 days or more. Follow-up study of these 21 survivors led to the following observations: that clinical evaluation of these patients is the most reliable index of their postoperative progress; that the diagnostic usefulness of postoperative cerebral arteriograms is limited because immediate postoperative changes tend to persist; that craniotomy is preferable to burr holes for removal of an acute hematoma; and that the value of cisternography, unless done serially, is limited since posttraumatic hydrocephalus develops rapidly and may persist indefinitely.

Acute Disease↗