background: magnetic resonance cholangiography (mrc) has gained popularity for diagnosing primary sclerosing cholangitis (psc). we determined the accuracy of mrc compared with endoscopic retrograde cholangiography (erc) for diagnosing psc. materials and methods: this retrospective case-control study was conducted on patients referred to an outpatient gastroenterology clinic from 2001 to 2013. p...

introduction in computed tomography (ct) technology, an optimal radiation dose can be achieved via changing radiation parameters such as ma, pitch factor, rotation time and tube voltage (kvp) for diagnostic images. materials and methods in this study, the brain, abdomen, and thorax scaning was performed using toshiba 16-slice scannerand standard aapm and ctdi phantoms. aapm phantom was used for...

Introduction In computed tomography (CT) technology, an optimal radiation dose can be achieved via changing radiation parameters such as mA, pitch factor, rotation time and tube voltage (kVp) for diagnostic images. Materials and Methods In this study, the brain, abdomen, and thorax scaning was performed using Toshiba 16-slice scannerand standard AAPM and CTDI phantoms. AAPM phantom was used for...

bietti’s crystalline dystrophy (bcd) is a rare disease presenting with the appearance of intraretinal crystalline deposits and varying degrees of chorioretinal atrophy commencing at the posterior pole. within time, intraretinal crystals gradually disappear and chorioretinal atrophy extends beyond the macula even resulting in complete chorioretinal atrophy. concomitant corneal crystals can be ...