Lonnie B. Wright

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The popliteal artery is a relatively short vascular segment but is affected by a unique set of pathologic conditions. These conditions, which may be common throughout the arterial system or exclusive to the popliteal artery, include atherosclerosis, popliteal artery aneurysm, arterial embolus, trauma, popliteal artery entrapment syndrome, and cystic(More)
PURPOSE To objectively compare the echogenicity of several types of needles at clinically important angles of insonation. MATERIALS AND METHODS Four commercial needles (Echotip, Mini-Stick, Echo-Coat, Surflo) and a prototype dimpled needle were tested in a liver phantom at angles of insonation ranging from 90 degrees to 15 degrees. Photodensity(More)
Percutaneous transhepatic biliary drainage remains a painful procedure in many cases despite the routine use of large amounts of intravenous sedation. We present a feasibility study of thoracic paravertebral blocks in an effort to reduce pain during and following the procedure and reduce requirements for intravenous sedation. Ten consecutive patients(More)
PURPOSE To analyze the operative benefit of preoperative sclerotherapy of facial venous malformations and assess long-term patient outcome. MATERIALS AND METHODS Preoperative sclerotherapy was performed in 24 consecutive patients referred before resection of facial venous malformation. Pretreatment imaging was reviewed for malformation dimensions (length,(More)
Invasive pneumococcal disease (IPD), caused by infection with Streptococcus pneumoniae, has a substantial global burden. There are over 90 known serotypes of S. pneumoniae with a considerable body of evidence supporting serotype-specific mortality rates immediately following IPD. This is the first study to consider the association between serotype and(More)
High-resolution CT angiogram (CTA) has replaced traditional diagnostic angiography as the main preoperative imaging modality for vascular surgery patients. Although the use of CTA is increasing for arterial imaging, it has not been used routinely for vein mapping. The goal of this study was to evaluate the accuracy of CTA for venous anatomy and compare it(More)
Publication of 28 data-based articles in peer-reviewed journals over a 4-year period is the result of a commitment to conducting and publishing research at a 383-bed Magnet®-redesignated community hospital. The research-intensive environment in nursing at this institution supports publication as the desired outcome of all projects. The provision of(More)
PURPOSE To compare venous access complication rates associated with procedures performed by radiology practitioner assistants (RPAs) versus interventional radiology (IR) faculty members, IR fellows, and radiology residents. MATERIALS AND METHODS A retrospective review of venous access procedures in the IR department for 12 consecutive months at a single(More)
Magnetic resonance is the imaging modality of choice for the evaluation of infants and children with known or suspected cerebral and cerebrovascular abnormalities. Entities described include cephaloceles, holoprosencephaly, dysgenesis of corpus callosum, and anomalies of neuronal migration. Congenital vascular lesions described include aneurysm,(More)
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