Clinical Significance of Magnetic Resonance Cholangiopancreatography (MRCP) Compared to Endoscopic Retrograde Cholangiopancreatography (ERCP)

Abstract

MRCP is capable of providing diagnostic information equivalent to ERCP in many patients, and should be applied whenever established techniques provide no results, or inadequate results.

Functional magnetic resonance cholangiography (fMRC) of the gallbladder and biliary tree with contrast‐enhanced magnetic resonance cholangiography

“…Our results are comparable to those obtained in the literature for conventional MRC (5-9) and fMRC (17). Particularly, conventional MRC sensitivity has been reported as ranging between 81 and 100%, with specificity between 85 and 100% for choledocholithiasis (6 -8) and sensitivites between 85% and 100% for strictures (8,9).…”

The Qualitative Analysis of Single Shot Fast Spin Echo (SSFSE) and Maximum Intensity Projection (MIP) on Magnetic Resonance Cholangiopancreatography

“…In addition, in a range of pancreatobiliary diseases, the diagnostic utility and accuracy of MRCP have been reported. Some studies suggested that MRCP can replace ERCP [5]. In regard to previous MRI images of the liver and biliary system, the image quality is low, the test takes a long time, breathing must be held for a long time during the test, and it is difficult to acquire satisfactory images.…”

“…In regard to previous MRI images of the liver and biliary system, the image quality is low, the test takes a long time, breathing must be held for a long time during the test, and it is difficult to acquire satisfactory images. Recently, images could be acquired within a short time with the application of a single shot fast spin echo (SSFSE) [5,6]. On the other hand, in previous MRCP, it was difficult to assess simultaneously the presence or absence of stenosis of the pancreatobiliary system, and whether the biliary duct is dilated or not, etc..…”

A colangiopancreatografia por ressonância magnética deve substituir a colangiopancreatografia endoscópica retrógrada no algoritmo diagnóstico das doenças biliopancreáticas?

“…Como os próprios autores admitem, este achado não ocorre em outras séries. Ao contrário, SOTO et al (13) No estudo de PISANI et al (11) , a CPRM apresentou a mesma acurácia da CPER no diagnóstico dos cálculos biliares, dado este amplamente comprovado na literatura (1,3,13) . De fato, em algumas situações, os métodos poderiam ser considerados complementares.…”

“…A acurácia da CPRM na detecção de estenoses biliares benignas pós-operatórias, pós-transplante hepático ou daquelas malignas, está bem documentada (1,3,13) . Neste sentido, não se deve esquecer de que a CPRM é derivada de ressonância magnética.…”