About this trial
The main purpose of the study is to train a convolutional neural network (CNN) to predict difficult biliary canulation (DBC) following the European Society of Gastrointestinal Endoscopy Society (ESGE). Consecutive patients undergoing an endoscopic retrograde cholangiopancreatography (ERCP) will be included in the study. Several pictures of the second portion of the duodenum including the ampulla will be taken, along with several pictures of the radiological image. Pictures prospectively collected from the study PRECABIDO (NCT06591364), a multicenter study whith the purpose of evaluating the prevalence of difficult biliary cannulation and predictive factors for difficult cannulation and cannulation failure using ESGE criteria were also used for the training of the CNN.
We will also assess:
A validation of the CNN assessing the agreement between ESGE criteria and the CNN prediction.
To design a novel application based on the use of a convolutional neural network (CNN) to detect difficult biliary cannulation.
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Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age >18 years
Signed informed consent
Patients indicated for ERCP
Disqualifiers
INR > 1.5
Platelets < 50,000/mm³
Patients with a prior endoscopic sphincterotomy
Papilla of Vater not accessible via duodenoscope (gastric or duodenal stenosis due to neoplasm) or gastric surgery (Billroth II, Roux-en-Y)
Trial population
All consecutive patients who meet the inclusion criteria and none of the exclusion criteria will be offered participation in the study.
Trial design
Other
Cross-sectional
Treatments tested in this trial
Endoscopic retrograde cholangiopancreatography (ERCP)
Procedure/SurgeryPatients with a clinical indication of Endoscopic retrograde cholangiopancreatography (ERCP) will be included in the study for malignant or benign conditions as in routine clinical practice. Endoscopic and radiological images of the second portion of the duodenum will be captured for each patient. In patients undergoing endoscopic ultrasound (EUS), additional images of the second portion of the duodenum at the level of the pancreatic head and common bile duct (CBD) will be obtained
Treatment groups
Trial outcomes
Primary outcomes
To train a convolutional neural network to predict difficult biliary canulation
To train a convolutional neural network to predict difficult biliary canulation following the European Society of Gastrointestinal Endoscopy Society (ESGE): Assessment of difficult biliary cannulation defined by ESGE criteria (\> 5 minutes duration until cannulation, \> 5 cannulation attempts, \> 1 passage of the guidewire into the main pancreatic duct). Based on these criteria pictures will be labelled as difficult biliary cannulation or not
Secondary outcomes
A validation of the CNN
A validation of the CNN assessing the agreement between ESGE criteria and the CNN prediction
Locations
Sponsors and contacts
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