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 There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened. - Douglas Adams |