Ethical considerations in CT angiography.

The rapid development and clinical deployment of CT angiography raises several important issues, including assurance of professional competence and technical quality, self-referral, the relative role of radiologists and cardiologists, appropriateness and proper indications, the detection and disposition of unexpected or incidental findings and the concern for the rapidly increasing costs of health care and imaging. These questions are properly addressed within the framework of medical ethics, including principles of beneficence, autonomy and justice.