Hamate fracture represents a small percentage of all carpal bone fractures [1], it is rare to the point that the incidence of its subtypes was not established. Hamate fractures with dislocation of fifth metacarpal are frequently missed by conventional x-rays, they need special views to be diagnosed, and the fracture architecture is best seen on three dimensional computed tomography (3D CT scan)...

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...

STUDY OBJECTIVE Patients receiving warfarin who experience minor head injury are at risk of intracranial hemorrhage, and optimal management after a single head computed tomography (CT) scan is unclear. We evaluate a protocol of 24-hour observation followed by a second head CT scan. METHODS In this prospective case series, we enrolled consecutive patients receiving warfarin and showing no intr...

For decades, dual-energy imaging has been used for tissue differentiation with several x-ray–based imaging modalities, exploiting the fact that the tissues in the human body show different absorption characteristics when penetrated with different x-ray spectra, spectra that are typically generated by different kV settings of the x-ray tube. Recently, dual-source computed tomography (CT) with 2 ...

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...

purpose: to report an unusual case of orbitocranial meningioma presenting in a neonate. methods: case report results: a 1-day-old neonate was presented with severe proptosis of the left eye. ct scan and mri showed an extensive mass with involvement of left orbit and brain. discrete calcification could be seen on ct scan. the patient did not have any signs of neurofibromatosis and family history...

BACKGROUND Clinical assessment of acute appendicitis can be challenging due to atypical presentation. Computed-tomography can reduce negative appendectomies but not without adverse effects. We report our experience with preoperative CT-scan in patients with suspected acute appendicitis. PATIENTS AND METHODS During 3-years, 257 adult patients underwent appendectomy. We retrospectively reviewed...