X-Ray, CT, Nuclear Medicine Abbreviations - A • AI Acceleration Index • ALARA As Low As Reasonably Achievable (5 database hits) • ALEF Area Length Ejection Fraction • ALI Annual Limit of Intake • AMA American Medical Association • AMU Atomic Mass Unit (3 database hits) • Ao Aorta • AoD Aortic Root Diameter • AP Anterior Posterior (1 database hit) • APTD Anteroposterior Trunk Diameter • AR Arrhythmia Rejection (2 database hits) • AR Aortic Regurgitation • ARS Acute Radiation Syndrome (1 database hit) • ARSAC Administration of Radioactive Substances Advisory Committee • AS Aortic Stenosis • ASRT American Society of Radiologic Technologists • AT Acceleration Time • ATP Adenosine Triphosphate • AUA Average Ultrasound Age • AUC Area Under Curve What is a cynic? A man who knows the price of everything and the value of nothing. - Oscar Wilde |