Out of every 10 women whose mammogram or physical exam reveals potentially cancerous cells in their breasts, approximately three of them will have additional dangerous clusters the examinations missed, according to a recent study presented at the RSNA conference Wednesday.

A new kind of self-mutilation is creeping into the teenage population, one that involves inserting objects into the body, according to radiologist Dr. William E. Shiels, II, who presented the first study of the adolescent phenomenon at the RSNA conference Wednesday.

With the help of new robotic training, victims of stroke may be able to extend the narrow six-month window to regain their mobility, according to a recent study presented at the RSNA conference Wednesday.

Breast-specific gamma imaging demonstrates better specificity and sensitivity than mammography, ultrasound, and MRI, according to several studies presented at the RSNA meeting.

In response to demands for evidence that cardiac CT will positively affect patient outcomes, researchers presented results at the RSNA conference Wednesday attesting to its value for identifying which intermediate risk patients are most likely to suffer future catastrophic coronary events.

The news was mixed for CT in the emergency department in research presented Wednesday at the RSNA meeting. CT was found to be better than ultrasound for diagnosing ER patients with abdominal pain, but radiation dose can be drastically reduced for patients suspected of appendicitis, according to authors of several studies.

A new 3D, fast spin-echo MR sequence at 3T could one day help musculoskeletal radiologists perform a comprehensive evaluation of articular cartilage of the knee in only five minutes, according to researchers from Wisconsin and California.

Rates of diagnostic imaging utilization varied by more than 56% across the 10 Medicare regions of the U.S., according to a study presented Wednesday. The regions with the highest utilization had the lowest percentage of imaging services provided by radiologists.

Automated breast ultrasound should not replace handheld ultrasound in a diagnostic breast center but rather should be used in conjunction with it or play a role in screening breast ultrasound, according to a study presented at the 2008 RSNA meeting.

Siemens Healthcare showcased at RSNA 2008 a PET/CT designed with radiologists in mind. It emphasizes CT performance and casts PET as the “smart contrast” that enhances the dynamic information delivered by CT. Siemens is pitching the CT component of its new Biograph mCT (molecular CT) as the most important part of the scanner and the PET component as delivering complementary information.