There are considerable rates of pediatrics trauma referring emergency department following a traumatic event. The worried parents are requesting for the most sensitive diagnostic test, so emergency physicians ask them to underwent brain computed tomography (CT) scan. Lower threshold of decision making regarding use of brain CT scan results in huge number of normal imaging. On the other hand, ra...

post stroke dementia is one of the most common complications of stroke that is preventable and relatively treatable too. the purpose of the study is comparison between the positive findings in brain ct scan and brain perfusion spect. 15 patients who were complicated by dementia after cerebrovascular accident and also 5 patients as a control group enrolled in this study. brain ct scan and brain ...

Introduction: The selection of   optimal treatment of obstructive nephrouropathy requires information about the functional status of each kidney. Nuclear renal scanning objectively measure differential renal function, multiple studies have demonstrated the role of assessment of renal perfusion and GFR with triphasic CT. The aim of this study is to assess the role of CT based on renal parenchyma...

Introduction: One of the main steps in the optimization process in diagnostic imaging is the quality control of radiology devices. The usual method of CT scan calibration is used of a phantom. The phantom created a certain weakening for the radiation through which it passes. One of the most suitable methods for quantitative analysis of the resolution and contrast in CT scan im...

results the study consisted of 40 patients (all men, with mean age of 33.38 ± 7.4 years). ct evaluation with standard dose were positive in 22 patients (55%). only 1 (2.5%) ct scan assigned as unacceptable by each radiologist in low-dose group. noise average of low-dose protocol, was approximately 7 times greater than standard dose group, while dlp and ed are 9.7 times smaller. in comparison wi...

A 49 year old man with previous history of colectomy for colon cancer was referred to our department for further evaluation of suspicious hepatic lesions noticed during an abdominal CT scan. 99mTc-RBC scan revealed multiple hot spots in the region of the liver, correlating to the CT and liver-spleen scan. Further follow-ups of the patient revealed no remarkable change in the size or numbe...

hydatid disease is the most common infections worldwide, but it rarely involves multiple organs. herein, a 12-year-old boy is presented, who was admitted to children's medical center, tehran university of medical sciences, tehran, iran with symptoms of irritability, sleepless, and weak­ness of the extremities. patient's brain computed tomography (ct) scan with contrast media showed large multil...