Some cardiologists and radiologists are asking whether guidelines for the use of coronary CT angiography need an update to improve consistency and outcomes. The ACCURACY trial supported the efficacy of CCTA, but experts suggest more rigorous training is necessary to ensure those benefits are realized across practices and patients. "The technique has great potential, but if you don't do it properly, it will not live up to anywhere near that potential," said Dr. John Lesser, president of the Society of Cardiovascular Computed Tomography. "It will look like it is not any good."