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BACKGROUND AND PURPOSE Pulsed color Doppler imaging of cerebrovascular structures permits rapid visual identification of the intracranial vessels. In some patients, however, the clinical utility of transcranial ultrasound examinations is limited by poor tissue penetration and inadequate imaging of vessels. This phase-two clinical trial evaluates whether(More)
Spectral analysis was used to examine 257 carotid arteries in 227 patients who had undergone carotid endarterectomy at 1, 3, 6, and 12 months after surgery and annually thereafter. Routine intraoperative completion angiography ensured that the operations were technically satisfactory. Postoperative restenoses were identified in 38 patients (15%). In 23(More)
Subclavian steal syndrome may result from stenosis or occlusion of the subclavian artery proximal to the origin of the vertebral artery. The diagnosis can be confirmed by noninvasive vascular studies with the use of a directional Doppler probe or by time-sequence aortic arch angiography, both of which can detect retrograde flow in the vertebral artery. A(More)
In an effort to evaluate the effectiveness of the Doppler Ophthalmic Test (DOT) following carotid endarterectomy, a large group of patients was examined both pre- and postoperatively with non-invasive techniques. The DOT, which has proven to be a useful non-invasive diagnostic test for the determination of significant carotid artery stenosis, was found to(More)
Pulsed and continuous-wave Doppler examinations with spectral analysis were performed on 258 carotid arteries in 220 patients and compared with multiplane contrast angiography. Each artery was examined for stenosis and assigned to one of four groups: normal to 19%, 20% to 49%, 50% to 99%, and occlusion. The incidence of disease was 70%. Diagnostic(More)
Duplex scanning with the use of continuous wave Doppler instrumentation was used for the evaluation of carotid disease and compared to angiography. In twenty such patients 100% accuracy for diagnosis of total occlusion by Duplex scanning with continuous wave Doppler, was obtained. The sensitivity for those patients with 50%-99% stenosis was 92% and for(More)
320 Background: Technological advancements allow community oncologists to improve quality of patient care. By offering online access to treatment protocols, colleague collaboration, and clinical resources in a centralized environment, practices may realize efficiencies that can translate to better patient care. METHODS We characterized development and(More)
31 Background: Our large network of oncology practices (PRs) launched a health IT (HIT) patient portal (PP) to improve patient (PT) access to clinical information (CI) and serve as a platform to enhance PR-to-PT communication (C). METHODS A team of HIT specialists and oncologists engaged in development of the PP to develop a platform to facilitate(More)
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