Intraductal ultrasonography (IDUS) for the diagnosis of biliopancreatic diseases

Fujita, Naotaka; Noda, Yutaka; Kobayashi, Go; Ito, Kei; Horaguchi, Jun; Koshita, Shinsuke; Kanno, Yoshihide

doi:10.1016/j.bpg.2009.05.007

Cited by 19 publications

(10 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The over‐the‐wire model has enabled insertion of the probe into the bile duct via the papilla without EST or balloon dilation 3 . Thus far, the usefulness of IDUS in the diagnosis of biliary diseases such as differentiation of malignant biliary strictures from benign ones has been reported 1,6,8 . Application of IDUS as an adjunct to ERCP in cases with BDS reportedly improves diagnostic accuracy 2,4,5,7,10 .…”

Section: Discussionmentioning

confidence: 99%

“…Intraductal ultrasonography (IDUS) has high spatial resolution, due to the use of high-frequency ultrasound in close proximity to the object, and high diagnostic yield is expected in the detection of BDS. [1][2][3][4][5][6][7][8][9][10] Although IDUS is an excellent tool for the visualization of BDS, indications for its use in patients with suspected BDS have not been established. We conducted a study on cases that had undergone ERCP with suspicion of BDS retrospectively and investigated the indications for IDUS in such a patient group.…”

Section: Introductionmentioning

confidence: 99%

“…Intraductal ultrasonography (IDUS) has high spatial resolution, due to the use of high‐frequency ultrasound in close proximity to the object, and high diagnostic yield is expected in the detection of BDS 1–10 . Although IDUS is an excellent tool for the visualization of BDS, indications for its use in patients with suspected BDS have not been established.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Intraductal Ultrasonography in the Diagnosis of Bile Duct Stones: When and Whom?

Endo

Ito

Fujita

et al. 2010

Digestive Endoscopy

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Intraductal Ultrasonography in the Diagnosis of Bile Duct Stones: When and Whom?

Endo

Ito

Fujita

et al. 2010

Digestive Endoscopy

Self Cite

View full text Add to dashboard Cite

show abstract

“…A sufficiently large tumor sample can discriminate between benign and malignant lesions in selected cases. Studies on intraductal endoscopic ultrasound (IEUS) took the EUS approach to dCC and PDAC identification a step further, and demonstrated that the diagnosis of bile duct strictures and lesions of the pancreatic head can be improved by the assessment of the ductal wall and its surrounding structures . In comparison to IH‐CCs and lesions of the caudal pancreas, PDACs and dCCs can be easily assessed via ERCP, EUS, and IEUS.…”

Section: Assigning a Diagnosis: Imaging Strategies For Pdacs And Dccsmentioning

confidence: 99%

Distal bile duct carcinomas and pancreatic ductal adenocarcinomas: postulating a common tumor entity

et al. 2015

View full text Add to dashboard Cite

The set definition of distal cholangiocarcinomas and adenocarcinomas of the pancreatic head is challenged by their close anatomical relation, similar growth pattern, and corresponding therapeutic outcome. They show a mutual development during embryologic organ formation and share phenotypic characteristics. This review will highlight the similarities with regard to the common origin of their primary organs, histopathological similarities, and modern clinical management. Thus, we propose to subsume those entities under a common superfamily.

show abstract

“…Intraductal ultrasonography (IDUS) performed using a 20‐MHz miniprobe through the working channel of a duodenoscope can be easily executed during ERCP [3,4] and can afford visualization of ductal cavities to provide information on intraluminal lesions, biliary walls, and periductal structures [5]. Such information is helpful and can further be combined with clinical information to guide the subsequent management of patients.…”

Section: Introductionmentioning

confidence: 99%

Proposal of a diagnostic algorithm for intraductal ultrasonography to distinguish between benign and malignant biliary strictures

Wang

Chuang

et al. 2017

The Kaohsiung J of Med Scie

View full text Add to dashboard Cite

To reexamine the recognizability of intraductal ultrasonography (IDUS) findings from an imaging database and propose a novel algorithm for clinical application. IDUS images of 102 patients who had undergone IDUS examinations for indeterminate causes of common bile duct dilation were independently reviewed by two endoscopists. The strength of the inter-rater agreement between the endoscopists was analyzed using Cohen's kappa (κ). An algorithm was implemented by arranging the IDUS characteristics according to their recognizability. The proposed algorithm was evaluated by examining the inter-rater agreement and diagnostic accuracy before and after the use of the algorithm. The strength of the inter-rater agreement was good for common bile duct stones with or without acoustic shadowing; intraluminal tumors; or bile duct wall thicknesses of more than or equal to 9 mm (κ > 0.8); followed by intraluminal hypoechoic nodules without common bile duct stone characteristics (κ = 0.771); and finally eccentric wall thickening, outer layer disruption, irregular mucosa, and destructed mural layers (κ: 0.595-0.419). Our algorithm improved the strength of inter-rater agreement with a diagnostic accuracy of 81.4%. We proposed an algorithm according to the recognizability of IDUS characteristics, and it can be used by endoscopists to evaluate such characteristics and determine the cause of biliary obstruction.

show abstract

Intraductal ultrasonography (IDUS) for the diagnosis of biliopancreatic diseases

Cited by 19 publications

References 69 publications

Intraductal Ultrasonography in the Diagnosis of Bile Duct Stones: When and Whom?

Intraductal Ultrasonography in the Diagnosis of Bile Duct Stones: When and Whom?

Distal bile duct carcinomas and pancreatic ductal adenocarcinomas: postulating a common tumor entity

Proposal of a diagnostic algorithm for intraductal ultrasonography to distinguish between benign and malignant biliary strictures

Contact Info

Product

Resources

About