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J L Weintraub

Publications and source records attributed to J L Weintraub.

5 recordsLinked to original sources
PubMed1995

Bilateral lower extremity US in the patient with bilateral symptoms of deep venous thrombosis: assessment of need.

PURPOSE: To assess the frequency of lower extremity deep venous thrombosis (DVT) detected with ultrasound (US) in patients with bilateral symptoms suggestive of DVT. MATERIALS AND METHODS: Fifty patients with bilateral lower extremity symptoms suggestive of DVT were examined prospectively for predisposing factors and type of symptoms. Charts were reviewed for previous lower extremity disease or chronic illness that could explain the patient's symptoms. The frequency of DVT diagnosed with US in this patient group was determined. RESULTS: No DVT was identified in the patients with bilateral symptoms suggestive of DVT. Retrospective review demonstrated that 34 (68%) of the patients had a preexisting condition (cardiac disease, venous insufficiency, chronic swelling, cellulitis or thrombophlebitis, peripheral arterial disease). Because compression US has a greater than 90% sensitivity and specificity for the diagnosis of DVT, these results were statistically significant (P < .001). CONCLUSION: The likelihood of DVT in patients with bilateral lower extremity symptoms is extremely low. Alternative causes should be carefully explored before lower extremity US is considered.

Aged↗
PubMed1994

CT angiography: expanded clinical applications.

In this essay, the potential of vascular imaging with helical CT is explored. The speed and ease with which volumes of interest can be depicted with high resolution and the ability of CT to resolve small differences in electron density allow imaging of vascular territories with IV injection of iodinated contrast materials. Vascular and combined vascular/soft-tissue/bone imaging make CT a powerful clinical tool. The technique is predominantly used for evaluation of atherosclerotic disease of the carotid bifurcation, the renal arteries, and the major abdominal vessels. A variety of display options, such as surface rendering and maximum intensity projection (MIP), have different advantages and are often complementary. The time taken to produce clinically acceptable images has been markedly reduced to between 15 and 30 min. Some of the limitations are related to the length of vascular coverage, the contrast load, and the need for exact timing. On the other hand, the technique is not affected by flow artifacts. CT angiography is now a reliable and practical clinical test that may be a useful adjunct to conventional CT.

Angiography↗