Seno Medical Instruments, Inc. has announced positive data from PIONEER, a Phase III pivotal trial of its Imagio breast imaging system. The study found that OA/US was more specific than device gray-scale ultrasound alone (US) in differentiating malignant from benign breast lesions and was non-inferior to US with respect to sensitivity. This means that OA/US detected a similar number of malignant lesions as US but had a lower rate of false po...