Reducing computed tomography radiation dose in diagnosing pulmonary embolism
نویسندگان
چکیده
BACKGROUND AND OBJECTIVE Computed tomography angiography plays a major role in the diagnosis of pulmonary embolism. Radiation dose associated with it is a major concern; therefore it is important to optimize protocols and techniques to ensure minimum radiation dose. METHODS The study compares two protocols i. Conventional Timing Bolus CT protocol and Delayed Timing Bolus protocol used to assist suspected pulmonary embolism patients. RESULTS A significant reduction in the average effective dose (39%) was noticed when using the delayed timing bolus protocol. CONCLUSION Delayed timing bolus protocol has a good impact on radiation dose without affecting the value of the computed tomography angiography study.
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