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DWI Shows Some Potential to Predict Post-TIA Stroke Risk

January 23, 2008 Diagnostic Imaging. DWI Shows Some Potential to Predict Post-TIA Stroke Risk Evidence of brain injury is most prevalent in patients with physical symptoms and long duration of symptoms Dee Rapposelli -------------------------------------------------------------------------------- An acute diffusion lesion is evident in one third of patients who have had a transient ischemic attack,1 and those patients may be at higher risk for stroke,2 according to a pair of studies presented… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:00pm — No Comments

Follow-up care of incidental brain findings draws criticism

January 22, 2008 Diagnostic Imaging. Follow-up care of incidental brain findings draws criticism C. P. Kaiser -------------------------------------------------------------------------------- The number of brain MR scans obtained in the clinical and research setting increases each year, as scanner equipment and scanning protocols become ever more sensitive to subtle abnormalities. Many of these incidental findings are low risk and do not need rigorous imaging follow-up. Researchers therefore… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:30pm — No Comments

FDA warning flummoxes ultrasound contrast trial

January 22, 2008 FDA warning flummoxes ultrasound contrast trial Notice catches AIUM off guard as both parties had agreed about noncardiac use of microbubble agents James Brice -------------------------------------------------------------------------------- Plans for a clinical trial designed to overcome long-standing regulatory obstacles to the general clinical use of ultrasound contrast media in the U.S. have been knocked off track by an FDA-mandated black box safety warning for two… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:30pm — No Comments

Expectations for tomosynthesis debut rise amid nagging doubts

January 22, 2008 Diagnostic Imaging. Expectations for tomosynthesis debut rise amid nagging doubts Hologic targets 2008 release, but other vendors defer, citing clinical questions, regulatory issues, and technological uncertainties Greg Freiherr -------------------------------------------------------------------------------- Not since the height of the CT slice wars have vendors said so much about products that were so far from market. They have been talking up breast tomosynthesis for years,… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

DWI breaks new ground in pelvic MR imaging, staging

January 22, 2008 Diagnostic Imaging. DWI breaks new ground in pelvic MR imaging, staging -------------------------------------------------------------------------------- Several studies released at the 2007 RSNA meeting suggest that diffusion-weighted MR imaging could one day become a routine exam for noninvasive characterization and staging of uterine tumors, replacing unnecessary catheter or surgical biopsies. Dr. Nagaraj S. Holalkere and colleagues at Massachusetts General Hospital… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

Digital breast tomosynthesis cuts callbacks, aids detection

January 22, 2008 Diagnostic Imaging. Digital breast tomosynthesis cuts callbacks, aids detection Positive study from Netherlands stands out in finding no difference between conventional and new technology Sarah Jersild -------------------------------------------------------------------------------- Digital tomosynthesis detects more breast masses, better categorizes those masses, and produces lower callback rates than conventional mammography. In a study of symptomatic patients, tomosynthesis… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

Demand skyrockets for digital mammography

January 22, 2008 Diagnostic Imaging. Demand skyrockets for digital mammography Vendors struggling to keep up with orders look for ways to boost production and beat backlogs Greg Freiherr -------------------------------------------------------------------------------- While demand for MR and CT equipment languishes, digital mammography is enjoying a heyday with no end in sight. When the final numbers are tallied, vendors expect to have shipped twice as many full-field digital mammography units… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

CTA seeks niche triage role in unstable angina patients

January 22, 2008 Diagnostic Imaging. CTA seeks niche triage role in unstable angina patients If multislice CT can rule out obstructive coronary artery disease, time and cost of care would be reduced and risk stratification improved Francesca Pugliese, M.D., and Gabriel P. Krestin, M.D., Ph.D. -------------------------------------------------------------------------------- Coronary CT angiography has been found to be a powerful tool to evaluate patients suspected of coronary artery disease who… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

CT shines for head and neck vascular trauma

January 22, 2008 Diagnostic Imaging. CT shines for head and neck vascular trauma Time-efficient whole-body CT for blunt cervical arterial injury delivers less dose than focused CT angiography Sarah Jersild -------------------------------------------------------------------------------- The use of multislice CT angiography has increased detection of vascular injury in patients suffering head and neck trauma, prompting debate on whether whole-body screening or focused attention on the head and… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

CT perfusion expands stroke care options

January 22, 2008 Diagnostic Imaging. CT perfusion expands stroke care options H. A. Abella -------------------------------------------------------------------------------- New CT perfusion scanning techniques that are safer and faster than older CT protocols could offer a practical imaging alternative to MR perfusion for stroke patients, according to two studies presented at the 2007 RSNA meeting. Findings also emphasize a new trend for widening the window for thrombolysis. A number of clinical… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

Computer illiteracy relates to age, stress, and persona

January 22, 2008 Diagnostic Imaging. Computer illiteracy relates to age, stress, and persona Smiles can help radiologists deal with technological advances, while frowns can be disadvantageous C. P. Kaiser -------------------------------------------------------------------------------- While stress and personality have a well-established relationship with one another, they were also found to have a strong relationship to computer literacy within the radiologist community. Radiologists with lower… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

Commoditization situates specialty at crossroads

January 22, 2008 Diagnostic Imaging. Commoditization situates specialty at crossroads John C. Hayes -------------------------------------------------------------------------------- Radiology is at a crossroads, according to three prominent radiologists who have followed the specialty's digital revolution and evolution of practice. Their message was characterized by the RSNA as "a warning and a challenge." The transformative impact of technology was at the heart of opening session presentations… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

Case Of The Month

January 22, 2008 Diagnostic Imaging. Case Of The Month Pooja Voria, M.D., MBA, Irini Youseff, M.D., MPH, and Robert Perone, M.D. -------------------------------------------------------------------------------- Clinical History A 13-year-old girl presents with abdominal pain, right lower quadrant tenderness, guarding, elevated lipase, and a history of gastroesophageal reflux disease. Findings On contrast-enhanced CT images, a heterogeneous low-attenuation intraluminal mass is identified in the… Continue