The group's principal activity is to provide diagnostic services. The group provides pet/ct scans, open m.r.i. , high field m.r.i. , digital mammography with computer aided diagnosis (cad) , cardiac and general nuclear medicine, computerized tomography (a.k.a. ct or cat) scans, ultrasound, general radiology (x-ray) and x-ray fluoroscopy, vascular doppler ultrasound studies, echocardiography and dexa osteoporosis scanning. The group operates from the United States.