الفهرس 
Anatomy of the biliary systemOnly 14 pages are availabe for public view
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Abstract
Computed Tomography is used as the primary imaging modality for the hepato biliary diseases as it provides important information about the extent of the disease.
Magnetic resonance cholangio pancreatography (MRCP) imaging is non-invasive technique beside that it has the advantage of detailed evaluation of the biliary tract. However, MRCP requires respiratory gating which performs well in patients who have a steady respiratory rhythm.
Recent advances in multi detector computed tomography (MDCT) technology has the advantage of faster acquisition and upgraded software techniques for image reconstruction, It is now more sensitive for determining the level and cause of biliary obstruction.
In this study, we aimed to evaluate the diagnostic value of CT cholangiography with MinIP in the work up of patients with obstructive biliary disease through correlation with PTC results.
To achieve this aim, 36 patients (mean age 58.8 years) 26 males (72.20%) and 10 females (27.80 %) with biliary obstruction whom ERCP was failed or contraindicated due to medical or surgical causes were subjected to PTC& CT cholangiography with post processing MinIP images were acquired.
By using CT cholangiography with thin-slab (15 mm) MinIP images, visualization of anatomic and pathologic details of the biliary tract and the extra biliary structures was easier. It was clear that the diagnostic value of CT cholangiography using 15-mm-thick is helpful & it directed us to the best management plan.
Summary and conclusion
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All lesions obstructing the biliary tract were correctly diagnosed by CT in comparison with PTC which which was considered as the gold standard.
Finally, depending on our study results, we found that CT cholangiography.