All are true regarding MRCP except
1.used in evaluation of pancreatobiliary disorder
2.depicts biliary ducts upstream and down stream from the lesion and extra ductile pathology
3.high water content of bile creates major problem in imaging
4.useful in pre-op and post - op evaluation of biliary drainage
Ans— 3
High water content in bile is exploited for imaging in MRCP.
MR cholangiopancreatography (MRCP) is a noninvasive method that is widely used in the evaluation of pancreatobiliary disorders.
MRCP depicts biliary ducts upstream and downstream from an eventual lesion, as well as extraductal diseases when combined with additional T1- and T2-weighted imaging or even the use of contrast media.
The high water content in bile composition and its relative stasis in the bile ducts are unique properties that are exploited to aid visualization with nearly all MRCP sequences
MRCP is useful in pre- and postoperative evaluation of biliary drainage, since it allows excellent visualization of the biliary ducts and possible ana- tomic variations.
MRCP also has its disadvantages. Although it is less operator de- pendent than US, it is more expensive and requires a longer period of time to perform imaging.
In comparison with ERCP, MRCP cannot be used during interventions such as biopsy since it is a noninvasive method. It also has poorer spatial resolution when compared with en- doscopic or even percutaneous cholangiography. Patients play an im- portant role in the MRCP examination since they are responsible for cooperation by holding their breath or staying still during the study
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