MR cholangiopancreatography

Abstract

Although MRCP is still an evolving technique, it has established itself as clinically useful and comparable with ERCP for the evaluation of various biliary or pancreatic ductal diseases. MRCP is not only comparable with ERCP in its diagnostic ability, but it has the tremendous advantage of being noninvasive. Furthermore, MR imaging is useful in patients with incomplete or failed ERCP, and in patients with certain biliary or gastrointestinal surgical procedures it is the imaging modality of choice. ERCP will remain an extremely important modality because of the great clinical importance for interventional biliary procedures with this technique. Nonetheless, MRCP may in the near future replace most of the diagnostic imaging of the biliary tree, with diagnostic results even more improved with further developments of hardware and technique.

Impact of magnetic resonance cholangiography in managing liver-transplanted patients: preliminary results of a clinical decision-making study

“…A possible explanation lies in the fact that MRC tends to overestimate the degree and extent of strictures [31]. Consequently, mild nonfibrotic strictures may have been unapparent at ERC, as they were distended by contrast-medium injection [4,32]. It is questionable whether liver biopsy or imaging follow-up may represent a valid reference standard in the nine patients in whom direct cholangiography was not performed.…”

“…Overall, the use of MRC led to a change in pretest diagmappa pre-intervento [4,34] Consequently, in clinical practice, imaging is required to assess biliary findings requiring interventional or surgical procedures and to provide a preoperative road map [4,34]. However, our study was performed by expert physicians of a tertiary referral centre, who showed -except for few cases -a high level of confidence in presumptive diagnosis (mean rating of 80%).…”

“…Nevertheless, direct cholangiography procedures may be technically challenging and associated with nonnegligible morbidity and mortality rates [3,4]. In recent years, magnetic resonance cholangiography (MRC) has been advocated as an ideal noninvasive alternative to direct cholangiography [5], as this highly fluid-sensitive technique allows panoramic and detailed representation of the biliary tree with no need for i.v.…”

“…Parole chiave Trapianto di fegato · Risonanza magnetica · Colangiografia in risonanza magnetica · Complicanze biliari · Diagnosi Introduzione Ad oggi, la colangiografia retrograda endoscopica (CRE) e la colangiografia transepatica percutanea (CTP) rimangono gli standard di riferimento nella valutazione della patologia biliare [1, 2]. Tuttavia, le procedure di colangiografia diretta possono essere tecnicamente impegnative ed associate a morbilità e mortalità non trascurabili [3,4]. Negli ultimi anni, la colangiografia in risonanza magnetica (CRM) è stata proposta come alternativa ideale non invasiva alla colangiografia diretta [5], dal momento che questa tecnica, altamente sensibile ai liquidi, permette una rappresentazione panoramica e dettagliata dell'albero biliare senza bisogno dell'iniezione endovenosa di mezzo di contrasto.…”

Diagnostik des Gallenwegskarzinoms

“…Sie ermöglicht die Kombination einer Schnittbildgebung mit einer der ERC vergleichbaren Darstellung des Gallengangs [5]. Die technische Weiterentwicklung der Methode erlaubt eine zunehmend bessere Detailauflösung [15].Direkte vergleichende Studien von ERC (ohne Zytologie/Histologie) vs. Magnetresonanzcholangiographie (MRC) bei Vorliegen einer Gallengangsobstruktion zeigen für beide Methoden einen vergleichbaren Informationsgewinn [1,3].…”