Subspecialties: Page 1210

HARM makes good on poststroke MR, exposes blood-brain barrier disruption
By Shalmali Pal
When stroke patients undergo standard FLAIR MR imaging, delayed gadolinium enhancement in the cerebral spinal fluid space -- or what researchers at the National Institute of Neurological Disorders and Stroke are calling hyperintense acute reperfusion marker (HARM) -- may indicate early blood-brain barrier disruption, reperfusion injury, hemorrhagic transformation, and poor clinical outcome. HARM also could help broaden the therapeutic window for stroke patients.
June 14, 2007
Philips reaches Brilliance milestone
By AuntMinnie.com staff writers
Philips Medical Systems of Andover, MA, has shipped its 3,000th Brilliance CT system. Philips launched the Brilliance CT line three years ago.
June 13, 2007
Lower tube voltage leads to reduced dose in pediatric CT
By Brian Casey
SAN FRANCISCO - Radiation dose can be reduced in pediatric CT imaging without compromising image quality by using lower tube voltages, according to CT pioneer Willi Kalender, Ph.D. Dose could potentially be reduced even further if manufacturers tweaked their systems to enable them to scan at lower energies than those commonly used now, he said at yesterday's sessions of Stanford University's International Symposium on Multidetector-Row CT.
June 13, 2007
Diffusion-weighted MRI: The cornerstone of neuroimaging-based stroke studies
By Shalmali Pal
A multitude of new studies published in the journal Stroke examine the increasing validity of MR in stroke imaging. The technique discussed in two papers is the diffusion-perfusion mismatch model with the goal of devising a "simple and practical means" of pinpointing the ischemic penumbra and identifying patients who are more likely to respond to reperfusion therapy. In the third, DWI results are used to create an outcome prediction model.
June 13, 2007
Toshiba adds bone subtraction software
By AuntMinnie.com staff writers
Toshiba America Medical Systems has debuted its SureSubtraction software package for its Aquilion CT line.
June 12, 2007
Viatronix, Medicsight net CE Mark
By AuntMinnie.com staff writers
Advanced visualization firm Viatronix and computer-aided detection (CAD) partner Medicsight of London have jointly released their integrated virtual colonoscopy CAD offering in Europe.
June 12, 2007
Aurora launches breast MRI hotline
By AuntMinnie.com staff writers
Breast MRI developer Aurora Imaging Technology has launched a new hotline for users to get information on reimbursement for breast MRI procedures.
June 12, 2007
NovaRad gets new orthopedic contracts
By AuntMinnie.com staff writers
RIS and PACS developer NovaRad of American Fork, UT, has increased its penetration of the orthopedic imaging market with contracts to install its PACS software at three facilities.
June 12, 2007
Breast radiotherapy studies propose shorter treatment, confirm lack of cardiac risk
By Shalmali Pal
The toxicity associated with radiation therapy for breast cancer is the focus of two new papers. In the first, Philadelphia-based researchers tightened up the radiotherapy course length, partly in an effort to reduce skin toxicity. And in the second, the authors investigated if radiation treatment increased the risk of cardiac toxicity.
June 12, 2007
Renal artery size varies widely; stent filters don't fit
By Eric Barnes
A review of abdominal multidetector-row CT (MDCT) angiograms found significant size differences between left and right renal arteries, between men and women, and between patients. These differences have serious implications for the increasingly common use of distal filtering devices to prevent distal atheroembolization after percutaneous transluminal renal angioplasty (PTRA). The devices are designed for carotid and coronary arteries, and more often than not don't fit, according to the study authors.
June 12, 2007
2007 06 12 14 56 04 706
MRI features of larger lesions predict malignancy in cirrhotic liver
By Radiology Review
(Radiology Review) MRI T1-weighted hypointense lesions on unenhanced in-phase images and T2-weighted hyperintensity or arterial hypervascularity are highly suggestive of malignancy in patients with liver cirrhosis, according to a study published in the American Journal of Roentgenology.
June 12, 2007
Virtual colonoscopy finds cancers outside the colon
By Brian Casey
June 11, 2007
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