الفهرس 
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Abstract
Traumatic abdominal injury is the leading cause of death among individuals younger than 45 years old. Eighty percent of traumatic injury is blunt with the majority of deaths secondary to hypovolemic shock. In fact, intraperitoneal bleeds occur in 12% of blunt trauma therefore, it is essential to identify trauma quickly. The optimal test should be rapid, accurate, and non-invasive The focused assessment with sonography in trauma is an ultrasound protocol developed to assess for hemoperitoneum and hemopericardium. Numerous studies have demonstrated sensitivities between 85– 96% and specificities exceeding 98%. At present, it would seem that focused assessment with sonography in trauma has the greatest utility in circumstances in which detection of free fluid would affect initial management directly, while avoiding diagnostic duplication and optimizing sensitivity and specificity In the current study we aim to evaluate the diagnostic accuracy of focused assessment with sonography in trauma as an initial assessment for patients with abdominal trauma compared to that of the gold standard multidetector computed tomography scan of the abdomen. A total of 100 patients with abdominal we recruited in the study. Mean age of patients was 33.36 years with range between 18 and 67 years old. Out of the studied patients; 85 (85%) patients were males and 15 (15%) patients were females The most frequent modes of trauma were motor car accidents (42%), fall from height (18%) and motor bike accidents (16%). Fifteen (15%) patients had firearm injuries and another 9 (9%) patients had stab wound.There were 11 (11%) patients had abdominal injuries without other associated injuries. The most frequent associated injuries were upper limb fracture (37%), fracture spine (22%) and hemothorax (13%). Associated lower limb fractures present in 10 (10%) patients and 7 (7%) patients had pelvic fracture. Based on computed tomography assessment; it was found that 100 (100%), 79 (79%), 51 (51%), 29 (29%), 5 (5%) and 3 (3%) patients had intraperitoneal free collection, hepatic injuries, splenic injuries, renal injuries, pancreatic injuries and retroperitoneal hematoma Based on the current study, FAST has 98% accuracy for detection of hemoperitoneum while it fails to detect any case with pancreatic injury or retroperitoneal hematoma. For detection of hepatic injuries; FAST has 96.3% overall accuracy while it has 95.9% overall accuracy with for detection of splenic injuries. Meanwhile for detection of renal injuries, focused assessment with sonography in trauma scan has 81.2% overall accuracy Limitations: The main limitations of the current study included; the sample size was small to correctly evaluate role of FAST in detection and grading abdominal injuries in trauma. Ultrasonography cannot differentiate between blood, urine, bile or ascites. That is why the sonographic findings have to be correlated with the clinical findings to make critical decisions. FAST has to be used within a diagnostic algorithm to have a proper role. Ultrasound is limited mainly by its low sensitivity in directly demonstrating solid organs injuries in particularly pancreas and kidney. Yet, this study was considered that first one that discussed such issue in our locality.