Background: Chukar partridge (Alectoris chukar) is raised for its highly nutritional and relatively expensive meat. Aims: This study evaluates selected lymphoid organs of juvenile and peripubertal Chukar partridges using a histomorphometric approach. Methods: Thirty one-day-old male and female Chukar partridges were included in the stu...

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 number of t...

background: the aim of this study was to investigate the ability of iranian medical and dental students in thinking critically and to assess their ability in using definite components of critical thinking (ct). methods: multistage cluster sampling was utilized to recruit 125 preclinical (1st, 2nd and 3rd year of study) students in yazd shaheed sadoughi university of medical sciences in yazd, ir...

The goal of this project is to investigate quantitatively the performance of different deformable image registration algorithms (DIR) with helical (HCT), axial (ACT), and cone-beam CT (CBCT). The variations in the CT-number values and lengths of well-known targets moving with controlled motion were evaluated. Four DIR algorithms: Demons, Fast-Demons, Horn-Schunck and Lucas-Kanade were used to r...

PURPOSE To investigate the variability in head computed tomographic (CT) scanning in patients with hemorrhagic stroke in U.S. hospitals, its association with mortality, and the number of different physicians consulted. MATERIALS AND METHODS The study was approved by the Committee for the Protection of Human Subjects at Dartmouth College. A retrospective analysis of the Medicare fee-for-servic...

BACKGROUND We examined trends in utilization of computed tomography (CT) among Medicaid enrollees in North Carolina, the clinical setting in which those CT scans were performed, and the number of enrollees known to have undergone 10 or more scans in a given year. METHODS North Carolina Medicaid claims were analyzed to determine the number of CT studies performed between January 1, 2007, and D...

PURPOSE With the development of RT treatment planning systems that use the relationship between CT number and Electron Density (ED), rather than the Linear Attenuation Coefficient (LAC) of a given material, a number of authors have pointed out the divergence between the linearity of CT numbers vs. LAC in the diagnostic range compared to the relationship between the CT number and ED. This paper ...