Neuroradiology: Page 199

Part I: Stroke imaging hones in on preventable infarction

By Eric Barnes

Our two-part series on acute stroke imaging presents current controversies in the field and the views of leading stroke researchers in neurology and radiology. Part I looks at image-guided treatment of at-risk brain tissue, patient selection, and study design.

February 20, 2008

Interventionalists: Proceed with caution for mechanical blood clot removal

By Edward Susman

The best predictor of a good recovery after an ischemic stroke is how successfully the patient can be revascularized, according to the results of a multicenter trial that looked at the correlation between restoration of blood flow and outcomes. Neurointerventionalist Dr. Christopher Zylak recently offered his take on the trial, and discussed how to get the best treatment outcomes for the patient.

February 18, 2008

MRI highlights hippocampal abnormalities in sickle cell disease patients

By Edward Susman

Adults with sickle cell disease (SCD) scored worse on neurological tests and showed a prevalence of MRI abnormalities, which included neuropsychological dysfunction and silent central nervous system infarction, in a recent study by California researchers.

February 4, 2008

Kyron changes name to Prism

By AuntMinnie.com staff writers

Brain imaging software developer Kyron Clinical Imaging has changed its name to Prism Clinical Imaging.

February 4, 2008

Flat-panel CT falls short in cerebral bleed assessment

By Eric Barnes

Flat-panel CT has a big advantage in the interventional suite, where it can potentially detect cerebral microbleeds without having to stop the procedure and send the patient to a conventional CT scanner. But according to two new studies, flat-panel images still can't match those of conventional CT for detecting cerebral hemorrhage.

January 31, 2008

IMRIS wins Chinese contract for MR suite

By AuntMinnie.com staff writers

Canadian intraoperative MRI developer IMRIS has placed its IMRIS intraoperative MRI system in a Beijing hospital, the Winnipeg, Manitoba-based firm reported.

January 31, 2008

SUVs need adjusting for high-resolution PET/CT

By Wayne Forrest

Radiologists and clinicians working with high-resolution PET/CT should adjust standardized uptake values (SUVs) accordingly to reduce the chance of errors in classifying head and neck tumors, according to researchers from the University of Minnesota in Minneapolis. In a recent study, the team found that maximum SUVs for head and neck lesions are significantly higher with high-resolution PET/CT than with conventional or lower-resolution systems.

January 31, 2008

SWI MR reveals microarchitecture of neurovascular diseases

By E. Mark Haacke, Ph.D.

In 2004 E. Mark Haacke, Ph.D., from Detroit's Wayne State University, discussed his work with susceptibility-weighted imaging (SWI) during a lecture at the San Francisco VA Medical Center. Haacke returns with an update on the applications of SWI in neuroimaging, including exciting advances in understanding Alzheimer's disease, stroke, and trauma. Haacke and colleagues have also launched a new database to showcase exceptional SWI cases.

January 31, 2008

PDAs may be suitable for viewing trauma head CT

By Erik L. Ridley

A personal digital assistant (PDA) with a high-resolution display offers similar performance compared to a diagnostic workstation for reporting the presence of an acute intracranial hemorrhage, according to a study by researchers in Ireland. The study included 30 noncontrast cranial CT cases, with images viewed on a PDA and a 3-megapixel display.

January 24, 2008

Varian, BrainLab win Novalis Tx orders

By AuntMinnie.com staff writers

Radiation therapy vendor Varian Medical Systems of Palo Alto, CA, and its partner BrainLab of Munich have booked 14 orders for the Novalis Tx radiosurgical platform, the companies reported.

January 23, 2008

'Uniquely higher' relaxivity rates give gadobenate an edge

By Shalmali Pal

Not all gadolinium-based agents are created equal, and those agents with a higher relaxivity point offer a number of advantages in clinical MRI, according to a study in the American Journal of Neuroradiology. In this in vitro study, the investigators from the University of Pittsburgh in Pennsylvania demonstrated differences among various gadolinium-based contrast agents.

January 22, 2008

Headgear: Is radiosurgery the right treatment for trigeminal neuralgia?

By Sydney Schuster

The nerve disorder trigeminal neuralgia (TN) is not that common, but with the median age of 67 at diagnosis it has the potential to be a widespread health issue among aging baby boomers. Radiosurgery has gained popularity as a way to manage TN, but will it become the gold standard treatment? Neurosurgeons who work with radiosurgery praise it as being faster, safer, and just as effective as traditional management methods.

December 30, 2007

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