RESUMO
@#Angiography is the gold standard for the diagnosis and treatment of vascular and related diseases. However, the challenges and peculiarities of the procedure may result in increased fluoroscopy time and number of acquired images, which increased personnel and patients‟ radiation exposure. This study determines the dose area product readings following diagnostic and interventional angiographic procedures in an attempt to establish reference values for patient radiation dose optimization. This retrospective study reviewed the cases of 25 patients that were managed at the teaching hospital. Types of angiographic procedure, exposure parameters as well as radiation dose parameters were documented. Fluoroscopy time, number of frames acquired for each examination, fluoroscopy and frame radiation doses were equally recorded. Of the 25 patients, 6 were for 4-vessel cerebral Digital Subtraction Angiography (DSA), 3 for both lower limbs DSA, 4 for both lower limbs DSA and angioplasty, 3 for Inferior Vena Cava (IVC) filter placement, 2 for pulmonary arteriography, 2 for renal artery embolisation, and 5 for unilateral lower limb DSA and angioplasty. Renal artery embolization had the highest fluoroscopy and frame radiation doses (73764 cGy.cm2 and 4090 mGy) compared to others. Measured Dose Area Product (DAP) doses were above the Diagnostic Reference levels (DRLs) available in the literature thereby necessitating the need for radiation dose optimization through, continuous dose management.