Perform calculation of recorded examination data, using complex mathematical formulae to determine patient physiologic parameters such as blood flow velocity, volume indices and embryo/fetal development or gestational age; Determine provisional working diagnosis; analyze examination data to define accurate representation of patient anatomy and hemodynamics; generate examination findings. Perform or assist with ultrasound procedures in such areas as the operating room, angiography, catheterization or special procedure suite, using appropriate sterile technique, in conjunction with invasive patient procedures; apply ultrasound instrument to surgically exposed surface of internal organ, under physician direction, for intraoperative examination.