Head and Neck Radiology: Page 54

Part II: Modalities, input, and image processing see stroke differently

By Eric Barnes

Our two-part series on acute stroke imaging looks at current controversies in imaging and treating ischemic stroke patients. In the final installment, CT perfusion pioneer Dr. Max Wintermark examines differences in imaging representations of infarcted brain tissue -- and a plan for addressing the challenges.

March 2, 2008

Inversion-recovery MRI falls short in brain tumor detection

By Shalmali Pal

Inversion-recovery (IR) imaging has made significant strides in brain MR, offering higher T1-weighted contrast and improving the contrast ratio of tumor to white matter. But IR imaging still cannot best spin-echo (SE) MRI for detecting brain metastases, according to radiologists from China. They compared the two MR protocols in 31 patients treated at the First Affiliated Hospital of Anhui Medical University in Hefei.

February 26, 2008

Isotope shows promise in brain cancer treatment

By Wayne Forrest

Researchers from the Duke University Medical Center in Durham, NC, are heralding early success with the isotope astatine-211 (At-211) in destroying residual cancer cells in the brain, while sparing healthy cells, and extending the lives of cancer patients. The therapy shows promising results for treating recurrent brain tumors and other cancers.

February 21, 2008

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

MR study reveals 'novel' findings on whiplash pathophysiology

By Shalmali Pal

Two years ago physical therapist James Elliott, Ph.D., and his co-authors conducted a study that pinpointed a connection between the chronic pain associated with whiplash and MR signs of fatty infiltrate in the cervical extensor muscles. In their latest work, they investigated the presence of fatty infiltrate in patients with nonwhiplash-related neck pain, and found that not all chronic neck pain is created equal.

February 14, 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

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

False positives a concern with FDG-PET/CT for head, neck tumors

By Wayne Forrest

FDG-PET/CT is worthwhile for assessing patients with occult head and neck primary tumors, but false positives remain a shortcoming of the hybrid technology, according to a British study. The results show that FDG-PET/CT cannot replace examination under anesthesia and biopsies for assessing occult head and neck primary tumors.

January 30, 2008

MedX scores clearance for T-Quest

By AuntMinnie.com staff writers

Nuclear medicine developer MedX has received U.S. Food and Drug Administration 510(k) clearance for its T-Quest gamma camera.

January 2, 2008

Given pays royalties to Israeli government

By AuntMinnie.com staff writers

Israeli video-capsule developer Given Imaging said that it has paid its outstanding royalty obligation and accrued interest of approximately $5 million to Israel's Office of the Chief Scientist (OCS).

January 1, 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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