scholarly journals Modern imaging of cholangitis

2021 ◽  
pp. 20210417
Author(s):  
Sarah Pötter-Lang ◽  
Ahmed Ba-Ssalamah ◽  
Nina Bastati ◽  
Alina Messner ◽  
Antonia Kristic ◽  
...  
Keyword(s):  
Bile Duct ◽  
Imaging Modality ◽  
Acute Cholangitis ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Percutaneous Transhepatic Cholangiography ◽  
Cross Sectional ◽  
Hepatobiliary System ◽  
Persistent Inflammation ◽  
Charcot’S Triad ◽  
Work Up

Cholangitis refers to inflammation of the bile ducts with or without accompanying infection. When intermittent or persistent inflammation lasts six months or more, the condition is classified as chronic cholangitis. Otherwise, it is considered an acute cholangitis. Cholangitis can also be classified according to the inciting agent, e.g., complete mechanical obstruction, which is the leading cause of acute cholangitis, longstanding partial mechanical blockage, or immune-mediated bile duct obliteration damage that results in chronic cholangitis. The work-up for cholangitis is based upon medical history, clinical presentation, and initial laboratory tests. Whereas ultrasound is the first-line imaging modality used to identify bile duct dilatation in patients with colicky abdominal pain, cross-sectional imaging is preferable when symptoms cannot be primarily localized to the hepatobiliary system. Computed tomography (CT) is very useful in oncologic, trauma, or postoperative patients. Otherwise, magnetic resonance cholangiopancreatography (MRCP) is the method of choice to diagnose acute and chronic biliary disorders, providing an excellent anatomic overview and, if gadoxetic acid is injected, simultaneously delivering morphological and functional information about the hepatobiliary system. If brush cytology, biopsy, assessment of the prepapillary common bile duct (CBD), stricture dilatation, or stenting is necessary, then endoscopic ultrasound (EUS) and/or retrograde cholangiography (ERC) are performed. Finally, when the pathologic duct is inaccessible from the duodenum or stomach, percutaneous transhepatic cholangiography (PTC) is an option. The pace of the work-up depends upon the severity of cholestasis on presentation. Whereas sepsis, hypotension, and/or Charcot’s triad warrant immediate investigation and management, chronic cholestasis can be electively evaluated. This overview article will cover the common cholangitides, emphasizing our clinical experience with the chronic cholestatic liver diseases.

scholarly journals Imaging of common bile duct stones

2016 ◽  
Vol 28 (1) ◽  
pp. 59-68
Author(s):  
A Nurman A Nurman
Keyword(s):  
Bile Duct ◽  
Magnetic Resonance ◽  
Common Bile Duct ◽  
Mr Imaging ◽  
Imaging Techniques ◽  
Gallbladder Disease ◽  
Acute Cholangitis ◽  
Common Bile Duct Stones ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Gastrointestinal Diseases

The gallbladder serves as the repository for bile produced in the liver. However, bile within the gallbladder may become supersaturated with cholesterol, leading to crystal precipitation and subsequent gallstone formation. Gallstone is one of the most common gastrointestinal diseases in clinical practice. Common bile duct stone may be silent and symptomless; alternatively the stone can cause acute cholangitis with jaundice, pain and fever and acute pancreatitis. Imaging of the gallbladder is typically requested for evaluation of right upper quadrant pain in patients with or without fever and jaundice. Hence,imaging is central to the investigation and diagnoses of choledocholithiasis. There are many options in the field of imaging of choledocholithiasis from a simple to more sophisticated examinations. Ultrasonography (US) has been the traditional modality for evaluating gallbladder disease, primarily owing to its high sensitivity and specificity for both stone disease and gallbladder inflammation. However, US is limited by patient body habitus, with degradation of image quality and anatomic detail in obese individuals. With the advent of faster and more efficient imaging techniques, magnetic resonance (MR) imaging has assumed an increasing role as an adjunct modality for gallbladder imaging. MR imaging allows simultaneous anatomic and physiologic assessment of the gallbladder and biliary tract. Magnetic resonance cholangiopancreatography is excellent for identifying the presence and the level of biliary obstruction. With newer diagnostic imaging technologies emerging, endoscopic retrograde cholangiopancreatography is evolving into a predominantly therapeutic procedure.

State-of-the-art aortic imaging: Part II - applications in transcatheter aortic valve replacement and endovascular aortic aneurysm repair

VASA ◽  
2014 ◽  
Vol 43 (1) ◽  
pp. 6-26 ◽  
Author(s):  
Fabian Rengier ◽  
Philipp Geisbüsch ◽  
Paul Schoenhagen ◽  
Matthias Müller-Eschner ◽  
Rolf Vosshenrich ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Transcatheter Aortic Valve Replacement ◽  
Surgical Repair ◽  
Imaging Modality ◽  
Open Surgical Repair ◽  
Cross Sectional ◽  
Transcatheter Aortic Valve ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

Transcatheter aortic valve replacement (TAVR) as well as thoracic and abdominal endovascular aortic repair (TEVAR and EVAR) rely on accurate pre- and postprocedural imaging. This review article discusses the application of imaging, including preprocedural assessment and measurements as well as postprocedural imaging of complications. Furthermore, the exciting perspective of computational fluid dynamics (CFD) based on cross-sectional imaging is presented. TAVR is a minimally invasive alternative for treatment of aortic valve stenosis in patients with high age and multiple comorbidities who cannot undergo traditional open surgical repair. Given the lack of direct visualization during the procedure, pre- and peri-procedural imaging forms an essential part of the intervention. Computed tomography angiography (CTA) is the imaging modality of choice for preprocedural planning. Routine postprocedural follow-up is performed by echocardiography to confirm treatment success and detect complications. EVAR and TEVAR are minimally invasive alternatives to open surgical repair of aortic pathologies. CTA constitutes the preferred imaging modality for both preoperative planning and postoperative follow-up including detection of endoleaks. Magnetic resonance imaging is an excellent alternative to CT for postoperative follow-up, and is especially beneficial for younger patients given the lack of radiation. Ultrasound is applied in screening and postoperative follow-up of abdominal aortic aneurysms, but cross-sectional imaging is required once abnormalities are detected. Contrast-enhanced ultrasound may be as sensitive as CTA in detecting endoleaks.

Comparative study of ultrasonographic findings with the operative findings of biliary surgery

2020 ◽  
Vol 22 (1) ◽  
pp. 25-29
Author(s):  
Zubayer Ahmad ◽  
Mohammad Ali ◽  
Kazi lsrat Jahan ◽  
ABM Khurshid Alam ◽  
G M Morshed
Keyword(s):  
Bile Duct ◽  
Common Bile Duct ◽  
Imaging Modality ◽  
False Positive Rate ◽  
Gallstone Disease ◽  
False Negative ◽  
False Negative Rate ◽  
Biliary Disease ◽  
Biliary Surgery ◽  
Operative Findings

Background: Biliary disease is one of the most common surgical problems encountered all over the world. Ultrasound is widely accepted for the diagnosis of biliary system disease. However, it is a highly operator dependent imaging modality and its diagnostic success is also influenced by the situation, such as non-fasting, obesity, intestinal gas. Objective: To compare the ultrasonographic findings with the peroperative findings in biliary surgery. Methods: This prospective study was conducted in General Hospital, comilla between the periods of July 2006 to June 2008 among 300 patients with biliary diseases for which operative treatment is planned. Comparison between sonographic findings with operative findings was performed. Results: Right hypochondriac pain and jaundice were two significant symptoms (93% and 15%). Right hypochondriac tenderness, jaundice and palpable gallbladder were most valuable physical findings (respectively, 40%, 15% and 5%). Out of 252 ultrasonically positive gallbladder, stone were confirmed in 249 cases preoperatively. Sensitivity of USG in diagnosis of gallstone disease was 100%. There was, however, 25% false positive rate detection. Specificity was, however, 75% in this case. USG could demonstrate stone in common bile duct in only 12 out of 30 cases. Sensitivity of the test in diagnosing common bile duct stone was 40%, false negative rate 60%. In the series, ultrasonography sensitivity was 100% in diagnosing stone in cystic duct. USG could detect with relatively good but less sensitivity the presence of chronic cholecystitis (92.3%) and worm inside gallbladder (50%). Conclusion: Ultrasonography is the most important investigation in the diagnosis of biliary disease and a useful test for patients undergoing operative management for planning and anticipating technical difficulties. Journal of Surgical Sciences (2018) Vol. 22 (1): 25-29

Contrast-Enhanced Ultrasound: a Simple and Effective Tool in Defining a Rapid Diagnostic Work-up for Small Nodules Detected in Cirrhotic Patients during Surveillance

2016 ◽  
Vol 25 (2) ◽  
pp. 205-211 ◽  
Author(s):  
Antonio Giorgio ◽  
Luca Montesarchio ◽  
Piero Gatti ◽  
Ferdinando Amendola ◽  
Paolo Matteucci ◽  
...  
Keyword(s):  
Predictive Value ◽  
Imaging Modality ◽  
Dynamic Imaging ◽  
Contrast Enhanced Ultrasound ◽  
Histologic Diagnosis ◽  
Therapeutic Work ◽  
Contrast Enhanced ◽  
Arterial Vascularization ◽  
Cirrhotic Patients ◽  
Work Up

  Background & Aims: Disappearance of portal blood flow and arterial vascularization is the hallmark of hepatocarcinogenesis. The capability of a dynamic imaging modality detecting arterial hypervascularization of small nodules is crucial to promote a rapid diagnostic and therapeutic work-up improving survival. We aimed to evaluate the capability of CEUS to detect arterial vascularization of ≤ 2 cm HCC nodules arising during surveillance so as to shorten the diagnostic and therapeutic work-up. Methods: From October 2009 to September 2014, among 1757 consecutive cirrhotic patients under surveillance with ultrasound (US), 243 patients had new single nodules 7-20 mm; 229/243 had a conclusive histologic diagnosis and comprised the study group. All patients underwent CEUS followed by enhanced MRI and US guided percutaneous 18G needle core biopsy of the nodules. Of the 229 nodules, 27 were hyperechoic, 171 hypoechoic and 31 isoechoic lesions. Results: The histology results revealed that 199/229 nodules were HCC and 30 were benign. Of 199 HCC, CEUS evidenced arterial hypervascularity in 190 nodules (95.5%) (sensitivity 94.48 %, specificity 100%, PPV 100%, NPV 76.92 %). Of the 39 CEUS arterial-unenhanced nodules, 30 were benign and 9 (23%) were well-differentiated HCC. eMRI showed arterial hypervascularity in 199 nodules (86,9%). Of these, only 193 (97%) were histologically HCCs while 6 were benign (sensitivity: 97%, specificity: 80%, PPV: 97%, NPV: 80%). Conclusions: CEUS has a great capability to detect arterial hypervascularity of small HCC. Because only 4.5% of new nodules escape the demonstration of arterial hyervascularity, CEUS must be performed immediately after conventional US to contrast the malignant fate of small lesions arising in a cirrhotic liver.. Abbreviations: CEUS: contrast-enhanced ultrasound; CT: computed tomography; HCC: hepatocellular carcinoma;MRI: magnetic resonance; NPV: negative predictive value; PPV: positive predictive value; US: ultrasonography.

A case of bile duct diverticulum with repeated acute cholangitis due to diverticular stone fall

2021 ◽  
Author(s):  
Tetsushi Azami ◽  
Yuichi Takano ◽  
Takahiro Kobayashi ◽  
Fumitaka Niiya ◽  
Naotaka Maruoka ◽  
...  
Keyword(s):  
Bile Duct ◽  
Acute Cholangitis

scholarly journals An incidental case of biliary fascioliasis with subtle clinical findings: US and MRCP findings

2013 ◽  
Vol 47 (2) ◽  
pp. 125-127
Author(s):  
Hakan Önder ◽  
Faysal Ekici ◽  
Emin Adin ◽  
Suzan Kuday ◽  
Hatice Gümüş ◽  
...  
Keyword(s):  
Case Report ◽  
Bile Duct ◽  
Magnetic Resonance ◽  
Biliary Obstruction ◽  
Fasciola Hepatica ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Clinical Findings ◽  
Imaging Studies ◽  
Laboratory Findings ◽  
Acoustic Shadow

Background. Fascioliasis is a disease caused by the trematode Fasciola hepatica. Cholangitis is a common clinical manifestation. Although fascioliasis may show various radiological and clinical features, cases without biliary dilatation are rare. Case report. We present unique ultrasound (US) and magnetic resonance cholangiopancreatography (MRCP) findings of a biliary fascioliasis case which doesn’t have biliary obstruction or cholestasis. Radiologically, curvilinear parasites compatible with juvenile and mature Fasciola hepatica within the gallbladder and common bile duct were found. The parasites appear as bright echogenic structures with no acoustic shadow on US and hypo-intense curvilinear lesions on T2 weighted MRCP images. Conclusions. Imaging studies may significantly contribute to the diagnosis of patients with subtle clinical and laboratory findings, particularly in endemic regions.

scholarly journals A Resected Case of Mucinous Adenocarcinoma of the Duodenum, Mimicking Intraductal Papillary Neoplasm of the Bile Duct

2015 ◽  
Vol 100 (11-12) ◽  
pp. 1443-1448
Author(s):  
Norio Kubo ◽  
Hideki Suzuki ◽  
Norihiro Ishii ◽  
Mariko Tsukagoshi ◽  
Akira Watanabe ◽  
...  
Keyword(s):  
Bile Duct ◽  
Common Bile Duct ◽  
Transverse Colon ◽  
Extrahepatic Bile Duct ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Mucinous Carcinoma ◽  
Villous Tumor ◽  
Intraductal Papillary Neoplasm ◽  
The Common ◽  
Papillary Neoplasm

Duodenum mucinous carcinoma is very rare, and the prognosis of the patient is very bad, especially when the tumor is invasive to other organs. In this case, duodenum carcinoma was invasive to common bile duct and transverse colon. Mucinous fluid, which was secreted from a duodenum tumor, was found in the dilatated bile duct. The intraductal papillary neoplasm of the bile duct was considered a differential diagnosis. We performed aggressive resection and had a good prognosis. A 74-year-old woman received a diagnosis of cholangitis and was treated with antibiotic drugs. Endoscopic retrograde cholangiopancreatography revealed a defect in the lower common bile duct with the mucoid fluid. We suspected intraductal papillary neoplasm of the bile duct, but no malignant cells were detected. One year later, gastrointestinal fiberscopy revealed a villous tumor in the postbulbar portion of the duodenum; adenocarcinoma was detected in biopsy specimens. Computed tomography revealed dilatation of the duodenum with an enhanced tumor, and dilatation of both the common and intrahepatic bile ducts. Magnetic resonance cholangiopancreatography revealed that the duodenum was connected with the common bile duct and ascending colon. We resected the segmental duodenum, extrahepatic bile duct, left lobe of liver, a partial of the transverse colon, and associated lymph nodes. Although the advanced duodenal carcinoma had poor prognosis, the patient was alive, without recurrence, 5 years after the operation.

Ruling out deep venous thrombosis in primary care

2005 ◽  
Vol 94 (07) ◽  
pp. 200-205 ◽  
Author(s):  
Karel G. M. Moons ◽  
Arno W. Hoes ◽  
Ruud Oudega
Keyword(s):  
Primary Care ◽  
Health Care ◽  
Decision Rule ◽  
Cross Sectional ◽  
Diagnostic Decision ◽  
Number Of Patients ◽  
Diagnostic Work ◽  
Work Up ◽  
Diagnostic Work Up ◽  
D Dimer

SummaryIn primary care, the physician has to decide which patients have to be referred for further diagnostic work-up. At present, only in 20% to 30% of the referred patients the diagnosis DVT is confirmed. This puts a burden on both patients and health care budgets. The question arises whether the diagnostic work-up and referral of patients suspected of DVT in primary care could be more efficient. A simple diagnostic decision rule developed in primary care is required to safely exclude the presence of DVT in patients suspected of DVT, without the need for referral. In a cross-sectional study, we investigated the data of 1295 consecutive patients consulting their primary care physician with symptoms suggestive of DVT, to develop and validate a simple diagnostic decision rule to safely exclude the presence of DVT. Independent diagnostic indicators of the presence of DVT were male gender, oral contraceptive use, presence of malignancy, recent surgery, absence of leg trauma, vein distension, calf difference and D-dimer test result. Application of this rule could reduce the number of referrals by at least 23% while only 0·7% of the patients with a DVT would not be referred. We conclude that by using eight simple diagnostic indicators from patient history, physical examination and the result of D-dimer testing, it is possible to safely rule out DVT in a large number of patients in primary care, reducing unnecessary patient burden and health care costs.

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