The power of an ultrasound can increase detection from approx. 48% to 97% in dense breasts. Ultrasound is capable of detecting cancers that cannot be found by mammography and physical exams. Sometimes mammograms and physical exams just aren't enough, particularly in women with dense breasts. Breast Ultrasound Screenings are Painless, No Compression, No Radiation, Implant Safe, Radiologist Read, No Prescription Required and is Critical for Women with Dense Breasts. -$195 & $235 in California.