Search Results - "Orrison Jr, William W."

The role of magnetoencephalography in “nonlesional” epilepsy by Funke, Michael E., Moore, Kevin, Orrison Jr, William W., Lewine, Jeffrey David

“…Summary The surgical management of neocortical epilepsy is challenging because many patients are without obvious structural lesions, or lesions are small and…”
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Traumatic brain injury: a review and high-field MRI findings in 100 unarmed combatants using a literature-based checklist approach by Orrison, William W, Hanson, Eric H, Alamo, Tony, Watson, David, Sharma, Mythri, Perkins, Thomas G, Tandy, Richard D

“…This study reviewed the literature for the extent of neuroimaging findings in boxers, indicative of traumatic brain injury (TBI) as identified in magnetic…”
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Use of a Sterile, Disposable, Radiation-Absorbing Shield Reduces Occupational Exposure to Scatter Radiation During Pectoral Device Implantation by SIMONS, GRANT R., ORRISON JR, WILLIAM W.

“…The aim of this study was to demonstrate the effectiveness of a radiation‐absorbing shield in reducing physicians' occupational radiation exposure during…”
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A prospective trial of hyperbaric oxygen for chronic sequelae after brain injury (HYBOBI) by Churchill, Susan, Weaver, Lindell K, Deru, Kayla, Russo, Antonietta A, Handrahan, Diana, Orrison, Jr, William W, Foley, John F, Elwell, Heather A

“…Some practitioners advocate hyperbaric oxygen (HBO2) for sequelae following brain injury. This study assessed recruitment, tolerance and safety in preparation…”
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Quantification of the human cerebrovasculature: a 7Tesla and 320-row CT in vivo study by Nowinski, Wieslaw Lucjan, Puspitasari, Fiftarina, Volkau, Ihar, Orrison, Jr, William W, Knopp, Michael V

“…Human cerebrovasculature has not been quantified in volume, length, and vascular-brain relationships. We investigated this using imaging. From 0.5-mm 7T and…”
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Developmental venous anomalies: appearance on whole-brain CT digital subtraction angiography and CT perfusion by Hanson, Eric H., Roach, Cayce J., Ringdahl, Erik N., Wynn, Brad L., DeChancie, Sean M., Mann, Nathan D., Diamond, Alan S., Orrison, William W.

“…Introduction Developmental venous anomalies (DVA) consist of dilated intramedullary veins that converge into a large collecting vein. The appearance of these…”
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Appearance and impact of post-operative intracranial clips and coils on whole-brain CT angiography and perfusion by Roach, Cayce J, Russell, Cheryl L, Hanson, Eric H, Bluett, Brent, Orrison, William W

“…Abstract Background To evaluate the effect of vascular clips and endovascular coils placed for intracranial aneurysms and arteriovenous malformations on…”
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Magnetoencephalographic Patterns of Epileptiform Activity in Children With Regressive Autism Spectrum Disorders by Lewine, Jeffrey D, Andrews, Richard, Chez, Michael, Patil, Arun-Angelo, Devinsky, Orrin, Smith, Michael, Kanner, Andres, Davis, John T, Funke, Michael, Jones, Greg, Chong, Brian, Provencal, Sherri, Weisend, Michael, Lee, Roland R, Orrison, William W, MD, Jr

“…One-third of children diagnosed with autism spectrum disorders (ASDs) are reported to have had normal early development followed by an autistic regression…”
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Assessment of the tracer delay effect in whole-brain computed tomography perfusion: results in patients without known neuroanatomic abnormalities by Hanson, Eric H, Roach, Cayce J, Day, Kirtly J, Peters, Keith R, Bradley, Jr, William G, Ghosh, Kaushik, Patton, Phillip W, McMurray, Robert C, Orrison, Jr, William W

“…Whole-brain computed tomography perfusion (CTP) data sets generated by tracer delay-insensitive singular value decomposition plus (SVD+) and standard singular…”
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Assessment of tracer delay effect in whole-brain computed tomography perfusion: results for selected regions of interest in middle cerebral artery acute ischemic strokes by Hanson, Eric H, Roach, Cayce J, Day, Kirtly J, Ghosh, Kaushik, Peters, Keith R, Bradley, Jr, William G, Orrison, Jr, William W

“…The objective of this study was to compare the variability of computed tomography perfusion (CTP) results in identical data sets of middle cerebral artery…”
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Clinical indications and utilization of 320-detector row CT in 2500 outpatients by Tabibian, Benjamin, Roach, Cayce J, Hanson, Eric H, Wynn, Brad L, Orrison, William W

“…Abstract Clinical indications and utilization patterns for 3963 CT scans on 2500 consecutive patents on a 320-detector row CT in an outpatient setting were…”
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Neuromagnetic assessment of pathophysiologic brain activity induced by minor head trauma by LEWINE, J. D, DAVIS, J. T, SLOAN, J. H, KODITUWAKKU, P. W, ORRISON, W. W

“…Patients with mild traumatic brain injury (TBI) often show significant neuropsychological dysfunction despite the absence of abnormalities on traditional…”
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Sagittal whole-spine magnetic resonance imaging in 750 consecutive outpatients: accurate determination of the number of lumbar vertebral bodies by Hanson, Eric H, Mishra, Rahul K, Chang, David S, Perkins, Thomas G, Bonifield, Daniel R, Tandy, Richard D, Cartwright, Peter E, Peoples, Randal R, Orrison, Jr, William W

“…When the number of lumbar and sacral vertebrae is being assessed, variations from typical lumbosacral anatomy may confuse the practitioner, potentially leading…”
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Magnetic resonance venography and genetics of a female patient with pelvic venous thrombosis by Perkins, Thomas G., Mishra, Rahul K., Siddiqui, Yasmin, Hanson, Eric H., Rowley, Robb K., Ramos, Erica R., Orrison, William W.

“…A femoral vein thrombosis, originally diagnosed with conventional ultrasound, was fully elucidated and monitored utilizing serial high-resolution magnetic…”
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Turf wars in radiology: the quality of imaging facilities operated by nonradiologist physicians and of the images they produce by Levin, David C, Rao, Vijay M, Orrison, Jr, William W

“…There is considerable emphasis currently placed on the need to reduce medical errors and improve patients' safety. Because diagnostic imaging is such an…”
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Magnetic source imaging in stereotactic and functional neurosurgery by Orrison, Jr, W W

“…Magnetic source imaging (MSI) combines the unique spatial and temporal functional accuracy of magnetoencephalography (MEG) with the anatomic and pathologic…”
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An MRI study of lumbar puncture headaches by Iqbal, J, Davis, L E, Orrison, Jr, W W

“…We studied 11 patients undergoing a routine lumbar puncture to determine if there were cerebrospinal fluid leaks at the puncture site and whether the maximum…”
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Electrophysiological Abnormalities in PTSD by LEWINE, JEFFREY DAVID, CANIVE, JOSE M., ORRISON Jr, WILLIAM W., EDGAR, CHRIS J., PROVENCAL, SHERRI L., DAVIS, JOHN T., PAULSON, KIM, GRAEBER, DAVID, ROBERTS, BRIAN, ESCALONA, PATRICIO R., CALAIS, LAWRENCE

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A long letter and an even longer reply about autism magnetoencephalography and electroencephalography by Kallen, R J

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Scintigraphic Appearance of Uncommon Soft-Tissue Osteogenic Sarcoma Metastases by Arrington, Elizabeth R, Eisenberg, Brian, Orrison, William W., Jr, Williamson, Michael R

“…The advent of improved chemotherapy has changed the natural course of osteosarcoma. The role of bone scintigraphy in the workup of metastatic osteosarcoma is…”
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