Despite challenges, ultrasound remains useful in obese trauma patients. Using the lowest frequency ultrasound probe along with tissue harmonic imaging improves image quality, according to an education exhibit presented at RSNA 2009.

A system that counts the number of CT exams by body part and date and alerts clinicians when they order more CT studies has been implemented at Brown Alpert Medical School in Rhode Island.

Findings of a study released Sunday at the 2009 RSNA meeting by researchers in Boston suggest CT angiography could help radiologists identify the factors that keep some types of lower extremity fractures from healing faster and better than other, similar lesions.

A system that required physicians, rather than support staff, to approve low-utility imaging exams was able to cut their incidence by more than half, according to a study from Massachusetts General Hospital reported Sunday at the 2009 RSNA meeting.

A retrospective single-center study involving 350 pregnant women indicates that contrast-enhanced CT to diagnose suspected pulmonary embolism poses no risk to the thyroid function of neonats.

Mild skin reactions are a not infrequent delayed adverse outcome of contrast-enhanced CT, according to a prospective study from the University of California, Davis.

Lesion size, patient age, and current ipsilateral breast cancer are statistically significant predictors of pathologic outcome for nonmasslike enhancement lesions seen on breast MRI, according to a scientific session presented on Sunday at the RSNA 2009 meeting.

A collaborative project backed by the National Cancer Institute, the cancer Biomedical Informatics Grid (caBIG) is serving as an umpire and scorekeeper of medical imaging research by setting the rules for assuring the validity of multicenter research and formatting results for easy tabulation and sharing.

Radiologists will often not biopsy small lesions because they assume the lesions are benign. But the decision to do so could mean missing malignant cases, according to a scientific session presented Sunday at the RSNA 2009 meeting.

RSNA president Dr. Gary J. Becker drew upon words of wisdom from legendary college basketball coach John Robert Wooden before a lively audience at the Arie Crown Theater on Sunday, Nov. 29.