George Cortas

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PURPOSE To evaluate the test performance of magnetic resonance (MR) cholangiography for help in diagnosing choledocholithiasis. MATERIALS AND METHODS Fast spin-echo MR cholangiography was performed by using a torso multicoil array in 110 patients suspected of having bile duct obstruction. Axial and coronal images were reviewed by two observers who were(More)
BACKGROUND Current recommendations for the use of standard catheters or sphincterotomes for the initial attempt at selective common bile duct cannulation have been made in the absence of prospective comparative data. METHODS A prospective study was carried out in which patients were randomized to undergo cannulation with a standard catheter or a(More)
In patients who have undergone prior Billroth-II (B-II) anastomosis, endoscopic retrograde cholangiopancreatography (ERCP) is challenging due to altered duodenal anatomy, which requires use of customized sphincterotomes. We report the use of a standard rotat-able sphincterotome for successful cannulation in 5 patients with prior B-II gastrojejunostomy and 1(More)
Colorectal cancer (CRC) has a very high incidence in the western world. Data from registries in the Middle East showed that the incidence of CRC is relatively low in these countries. However, these data also showed that CRC incidence has increased substantially over the past three decades and that a high proportion of cases are diagnosed at an early age(More)
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