Introduction: Radiological investigations form a cornerstone in the management of patients. Patient might me unware of the radiation exposure. The aim of this study is to assess patient's knowledge of radiation exposure to common diagnostic imaging procedures.

Introduction: Acute abdomen is the most common condition for patients presenting in the emergency. Ultrasound among other imaging modalities is the most common diagnostic tool employed in the diagnosis of such cases.Methods: A prospective study of consecutive patients presenting with acute abdomen fulfilling the inclusion and exclusion criteria were included in the study. Ultrasound was performed by single radiologist and findings were correlated to the clinical, pathological and surgical findings.Results: A total of 248 patients fulfilled all criteria and were included in the study. The age of patients ranged from 15-62 years with mean age of 41.3 years. There was female predominance with a male to female ratio of 1:1.8. Ultrasound accurately diagnosed 233 cases (93.9 %). Urolithiasis was the most common finding (45.16%) followed by acute appendicitis (19.35%).Conclusion: Ultrasound has pivotal role in the diagnosis and overall management of patient presenting with acute abdomen. Urolithiasis is the most common etiology for non- traumatic acute abdomen.

Objective: To investigate the incidental findings in computed tomography scans performed for mild head injury in pediatric patients at Nepalgunj Medical College and Teaching Hospital, Kohalpur, Banke, Nepal. Materials and methods: It is a cross sectional hospital based study performed on two hundred and eighteen patients of age < 18 years presenting with mild head injury with no known neurological problem, recent surgery, and time of scanning < 24 hrs of sustaining injury were included in the study between Dec 2016 and June 2017. Results: Among the 218 patients, 134 were males and 84 females, age ranged from 3 months to 18 years. 196 out of 218 patients (89.9%) had incidental findings in CT scan images with greater than 2 incidental findings present in 54 patients. Sinus opacification was the most common incidental finding noted in 86 cases (43.9 %) followed by calcified granuloma in 27 cases (13.8 %). Incidental findings unrelated to trauma which required further investigation was present in 5 cases. Conclusion: Incidental findings are being increasingly encountered in computed tomography scan performed for mild head injury in pediatric age group with sinus opacification as the most common finding. Recognition of these findings and communication with the treating physician is helpful in the overall management of such cases.