Ultrasound screening finds more breast cancer, false positives may outweigh that benefit
Adding ultrasound exams to annual breast cancer
screening can detect more cancers in women who have
dense breasts and are at a higher risk of breast cancer, according to a
three-year, multi-center trial appearing this week in the Journal of the American Medical Association. But the scans carry risks that may outweigh their benefits.
Visual nudge improves accuracy of mammogram readings
False negatives and positives plague the reading of mammograms, limiting their usefulness. Cindy Grimm, a computer scientist at Washington University in St. Louis, and colleagues have shown the accuracy of novice readers can be improved by nudging them visually to follow the scanpath of an expert radiologist. The “nudge” is a brief change in the brightness or warmth in the image in the peripheral field of view.