RAD-AID International is a 501c3 nonprofit organization dedicated to improving and expanding radiology services in the developing world and poor areas. The World Health Organization (WHO) reports that half of the world's population has no access to medical imaging (radiology), such as x-ray, ultrasound and mammography. This disparity has contributed to inadequate health care among poor populations, such as for women's health (breast cancer screening and maternal infant health), HIV-related disease, Tuberculosis, cancer, heart disease, and trauma, because these diseases often require radiology for diagnosis and care. To address this worldwide problem, RAD-AID uses a multidisciplinary approach involving economic development, health care system evaluation, technology innovation, clinical education, and technical training to improve global radiology for delivering vital health services.