Imaging of benign biliary pathologies.

Pathologies of the biliary tree include a wide-spectrum of benign and malignant processes. The differential for benign disease includes congenital and acquired disease with variable prognosis and management pathways. Given the ability to mimic malignancy, benign processes are difficult to diagnose by imaging. Direct cholangiography techniques with tissue sampling are the gold standards for the diagnosis of benign and malignant biliary pathologies. Non-invasive imaging with ultrasound offers a first-line diagnostic tool while MRI/MRCP offers higher specificity for identifying underlying pathology and distinguishing from malignant disease. In this review, we focus on the imaging appearance of dilatation, cystic anomalies obstruction, inflammation, ischemia, strictures, pneumobilia, and hemobilia to help construct a differential for benign processes.

Magnetic resonance cholangiopancreatography: pitfalls in interpretation.

Magnetic resonance cholangiopancreatography (MRCP) has become a widely accepted noninvasive diagnostic tool in the assessment of pancreatic and biliary disease. MRCP essentially exploits extended T2 relaxation times of slow-moving fluid and delineates the outline of biliary and pancreatic ducts on T2-weighted images. In order to maximize the clinical implication of MRCP, it is of utmost importance for radiologists to optimize the acquisition technique, be aware of patient-related factors and physiologic changes than can affect its performance and interpretation. It is critical to understand the most common artifacts and pitfalls encountered during acquisition and interpretation of MRCP. We provide a general overview of the different pitfalls encountered in MRCP and pearls on how to manage them in real-world practice.

Use of MR in Pancreaticobiliary Emergencies.

This article presents the MR protocols, imaging features, diagnostic criteria, and complications of commonly encountered emergencies in pancreaticobiliary imaging, which include pancreatic trauma, bile leak, acute cholecystitis, biliary obstruction, and pancreatitis. Various classifications and complications that can arise with these conditions, as well as artifacts that may mimic pathology, are also included. Finally, the emerging utility of abbreviated MR protocols is discussed.

Efficacy and safety of direct peroral cholangioscopy using a new multibending ultra-slim endoscope for the management of biliary diseases.

BACKGROUND/PURPOSE: Compared with currently available duodenoscopy-assisted systems, direct peroral cholangioscopy (DPOC) using an ultra-slim endoscope is limited by technical difficulties. The multibending (MB) ultra-slim endoscope was introduced as a dedicated cholangioscope for DPOC to challenge the technical problem. We retrospectively analyzed the clinical utility of DPOC using an MB endoscope with free-hand insertion into the bile duct in patients with biliary diseases. METHODS: A total of 145 patients who underwent DPOC using an MB endoscope were analyzed. The primary outcome was the technical success rate of DPOC using the free-hand insertion of the MB endoscope. The secondary outcomes were the technical success rates of DPOC-guided diagnostic and therapeutic interventions, the diagnostic accuracy of DPOC-guided target biopsy, and adverse events related to DPOC. RESULTS: Free-hand biliary insertion of a MB endoscope for DPOC was technically successful in 133 patients (91.7%). DPOC-guided target biopsy was successful in 36 of 38 patients (94.7%) and had a diagnostic accuracy of 91.7% (95% confidence interval, 82.6-100). Sixty-nine therapeutic interventions were performed; technical success was achieved in 65 (94.2%). No severe adverse events were observed. CONCLUSIONS: The MB ultra-slim endoscope was technically effective to perform a DPOC including various diagnosis and therapeutic interventions without device assistance. MB endoscope is considered to contribute to expanding a role of DPOC in diagnosis and treatment of diverse biliary tract diseases.

ERCP in critically ill patients is safe and does not increase mortality.

ABSTRACT: Endoscopic retrograde cholangiopancreatography (ERCP) is the gold standard for minimally-invasive treatment of biliary or pancreatic tract disease. When treating patients on intensive care units (ICU) with ERCP, interventionalists are faced with considerably higher morbidity compared to patients in ambulatory settings. However, data on complications and outcome of critical ill patients undergoing emergency ERCP are limited.A retrospective analysis of 102 patients treated on ICUs undergoing 121 ERCP procedures at the University Hospital of Essen, Germany between 2002 and 2016 was performed. Indications, interventional success, outcome including survival and procedure-related complications were analyzed. Patients' condition pre-ERCP was categorized by using the "Simplified Acute Physiology Score" (SAPS 3).66/102 patients (64.7%) were referred to ERCP from surgical ICU, 36/102 (35.3%) from nonsurgical ICU. The majority of patients were male (63.7%), the mean age was 54.1 ±â€Š14.9 [21-88] years. Indications for ERCP were biliary complications after liver transplantation (n = 34, 33.3%), biliary leakage after hepatobiliary surgery (n = 32, 31.4%), and cholangitis/biliary sepsis (n = 36; 35.3%), respectively. 117/121 (96.7%) ERCPs were successful, 1 patient (1.0%) died during ERCP. Post-ERCP pancreatitis occurred in 11.8% of interventions. The median simplified acute physiology score 3 was 65 points, predicting a risk-adjusted estimated mortality of 48.8%, corresponding to an observed mortality of 52.2% (P = n.s.).ERCP is safe in critically ill patients on ICU, it does not increase overall mortality rate and has a relatively low rate of procedure-associated complications.

Short Term Outcome of Therapeutic ERCP in the Management of Biliary Ascariasis in a Tertiary Care Hospital of Bangladesh.

The history of ascariasis is very old. It is endemic in various parts of Bangladesh. Hepatobiliary ascariasis is a well-known complication of the intestinal ascariasis. Although cosmopolitan, it predominantly affects people in Asia, Africa, and South America. This was a prospective observational study conducted from July to December 2014 to explore the short term outcome of therapeutic ERCP in the treatment of biliary ascariasis in a tertiary care hospital of Bangladesh. A total of 60 cases of biliary ascariasis were selected conveniently in this study. Data were collected by face-to-face interviews and observation with the help of data sheet. Data were checked for quality control and analyzed by computer using SPSS software. The mean±SD age of the patients was 30.96±7.66 years. All the patients were aged between 17 and 55 years and predominantly affect women in the 3rd and 4th decades. The most common presentation was upper abdominal pain in 47(83.32%) of the patients. Ultrasound was the diagnostic tool of choice, where biliary ascariasis was found in 40(66.7%) of patients. ERCP is reserved mainly for therapeutic purposes and found successful in 57(95%) of the patients.

The Diagnostic Yield of Magnetic Resonance Cholangiopancreatography in the Setting of Acute Pancreaticobiliary Disease - A Single Center Experience.

PURPOSE: To discern whether preceding ultrasound (US) results, patient demographics and biochemical markers can be implemented as predictors of an abnormal Magnetic Resonance Cholangiopancreatography (MRCP) study in the context of acute pancreaticobiliary disease. METHODS: A retrospective study was performed assessing US results, age, gender, elevated lipase and biliary enzymes for consecutive patients who underwent an urgent MRCP following an initial US for acute pancreaticobiliary disease between January 2017-December 2018. Multivariable binary logistic regression models were constructed to assess for predictors of clinically significant MRCPs, and discrepant US/MRCP results. RESULTS: A total of 155 patients (mean age 56, 111 females) were included. Age (OR 1.03, P < 0.05), hyperlipasemia (OR 5.33, P < 0.05) and a positive US (OR 40.75, P < 0.05) were found to be independent predictors for a subsequent abnormal MRCP. Contrarily, gender and elevated biliary enzymes were not reliable predictors of an abnormal MRCP, or significant MRCP/US discrepancies. Of 66 cases (43%) of discordant US/MRCPs, half had clinically significant discrepant findings such as newly discovered choledocholithiasis and pancreaticobiliary neoplasia. Age was the sole predictor for a significant US/MRCP discrepancy, with 2% increase in the odds of a significant discrepancy per year of increase in age. CONCLUSION: An abnormal US, hyperlipasemia and increased age serve as predictors for a subsequent abnormal MRCP, as opposed to gender and biliary enzyme elevation. Age was the sole predictor of a significant US/MRCP discrepancy that provided new information which significantly impacted subsequent management. In the remaining cases, however, MRCP proved useful in reaffirming the clinical diagnosis and avoiding further investigations.

The role of interventional radiology in the management of refractory bile leaks.

Refractory bile leaks represent a damaging sequela of hepatobiliary surgery and direct trauma. Management of bile leaks represents a challenging clinical problem. Despite advances in endoscopic techniques, interventional radiology continues to play a vital role in the diagnosis and management of refractory bile leaks. This article reviews strategies for optimizing the diagnosis and management of bile leaks and provides an overview of management strategies, including the management of complicated biliary leaks.

Incidence and computed tomography findings of lenvatinib-induced pancreatobiliary inflammation: A single-center, retrospective study.

ABSTRACT: In this single-center retrospective study, we intended to evaluate the frequencies and characteristics of computed tomography findings of pancreatobiliary inflammation (PBI) in patients treated with lenvatinib and the relationship of these findings with treatment-planning changes.We included 78 patients (mean ±â€Šstandard deviation, 69.8 ±â€Š9.4 years, range: 39-84 years, 62 men) with hepatocellular carcinoma (n = 62) or thyroid carcinoma (n = 16) who received lenvatinib (June 2016-September 2020). Two radiologists interpreted the posttreatment computed tomography images and assessed the radiological findings of PBI (symptomatic pancreatitis, cholecystitis, or cholangitis). The PBI effect on treatment was statistically evaluated.PBI (pancreatitis, n = 1; cholecystitis, n = 7; and cholangitis, n = 2) was diagnosed in 11.5% (9/78) of the patients at a median of 35 days after treatment initiation; 6 of 9 patients discontinued treatment because of PBI. Three cases of cholecystitis and 1 of cholangitis were accompanied by gallstones, while the other 5 were acalculous. The treatment duration was significantly shorter in patients with PBI than in those without (median: 44 days vs. 201 days, P = .02). Overall, 9 of 69 patients without PBI showed asymptomatic gallbladder subserosal edema.Lenvatinib-induced PBI developed in 11.5% of patients, leading to a significantly shorter treatment duration. Approximately 55.6% of the PBI cases were acalculous. The recognition of this phenomenon would aid physicians during treatment planning in the future.

Diagnostic Applications of Point-of-Care Ultrasound in Pediatric Emergency Medicine.

Point-of-care ultrasound has become an essential part of pediatric emergency medicine training and practice. It can have significant clinical benefits, including improving diagnostic accuracy and decreasing length of stay, and does not require radiation exposure for patients. In this review, we summarize the current diagnostic point-of-care ultrasound applications in pediatric emergency medicine, their evidence, and techniques.

Improved management of grade B biliary leaks after complex liver resections using gadoxetic acid disodium-enhanced magnetic resonance cholangiography.

BACKGROUND: Bile leaks occurring after complex liver resection and lasting >1 week (grade B) usually are managed by means of invasive cholangiography either endoscopic or percutaneous, with a substantial risk of procedure-related complications. The aim of this study was to investigate the ability of gadoxetic acid disodium-enhanced magnetic resonance cholangiography to detect postoperative biliary leaks and avoid invasive cholangiography in case of peripheral location of the fistula. METHODS: Patients with grade B biliary leak after complex liver resection from January 2018 to March 2020 underwent magnetic resonance cholangiography to guide the management of the leak (study group). The primary endpoint was the ability of magnetic resonance cholangiography to reduce the need for invasive cholangiography with respect to similar posthepatectomy leaks collected in the previous 2 years and approached with upfront invasive cholangiography (controls). A series of in-hospital outcomes also were compared. RESULTS: Out of 533 liver resections, 11 study patients versus 11 control patients with grade B leaks were compared. Magnetic resonance cholangiography achieved 100% accuracy in detection and location of the leak. Five out of 6 peripheral leaks healed without invasive cholangiography. Overall, 50% reduction in the use of invasive cholangiography was observed in the study versus control patients. Median healing time and hospital stay were 38 and 40 days in patients undergoing invasive cholangiography versus 10 and 11 days in patients treated conservatively (P = .007 and 0.012, respectively). Infection rate and other complications rate were 82% vs 20% (P = .01) and 35% vs 40% (P = .5), respectively. CONCLUSION: Magnetic resonance cholangiography is a safe, precise, noninvasive tool to detect posthepatectomy bile leaks that can help clinicians in decision-making on conservative versus invasive treatment of fistulas.