Related Experiment Video
Updated: May 8, 2026

Robotic-assisted Lateral Pancreaticojejunostomy for Chronic Pancreatitis
Published on: September 5, 2025
Pancreatic duct patterns in acute pancreatitis: a MRI study
Rong Peng1, Xiao Ming Zhang, Yi Fan Ji
1Sichuan Key Laboratory of Medical Imaging, Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, the People's Republic of China.
Objectives:
To study the MRI findings of the pancreatic duct in patients with acute pancreatitis.
Materials And Methods:
A total of 239 patients with acute pancreatitis and 125 controls were analyzed in this study. The severity of acute pancreatitis was graded using the MR severity index (MRSI) and the Acute Physiology And Chronic Healthy Evaluation II(APACHE II) scoring systems. The number of main pancreatic duct (MPD) segments visualized, and both MPD diameter and pancreatic duct disruption were noted and compared with the severity of acute pancreatitis.
Results:
The frequency of MPD segment visualization in the control group was higher than that in the acute pancreatitis group (p<0.05). The number of MPD segments visualized was negatively correlated with the MRSI score (p<0.05) and the APACHE II score (p<0.05). There was no difference in the MPD diameter between the acute pancreatitis and control groups or among the patients with different severities of acute pancreatitis (p>0.05). The prevalence of pancreatic duct disruption was 7.9% in the acute pancreatitis group. The prevalences of pancreatic duct disruption were 4.8% and 15.3% in the mild and severe acute pancreatitis groups based on the APACHE II score, respectively, and were 0%, 5.7% and 43.5% in the mild, moderate and severe acute pancreatitis groups according the MRSI score, respectively. The prevalence of pancreatic duct disruption was correlated with the severity of acute pancreatitis based on the APACHE II score (p<0.05) and MRSI score (p<0.05).
Conclusion:
The pancreatic duct in acute pancreatitis patients was of normal diameter. The number of MPD segments visualized and visible pancreatic duct disruption on MRI may be supplementary indicators for determining the severity of acute pancreatitis.
Insights
MRI shows that the number of visible main pancreatic duct segments and pancreatic duct disruption can help determine acute pancreatitis severity. Pancreatic duct diameter remains normal in patients with acute pancreatitis.
Area of Science:
- Radiology
- Gastroenterology
- Medical Imaging
Background:
- Acute pancreatitis is a common gastrointestinal emergency.
- Accurate assessment of acute pancreatitis severity is crucial for patient management and prognosis.
- Magnetic Resonance Imaging (MRI) is a valuable tool for evaluating pancreatic diseases.
Purpose of the Study:
- To investigate the MRI characteristics of the main pancreatic duct (MPD) in patients diagnosed with acute pancreatitis.
- To correlate MPD findings with the severity of acute pancreatitis using established scoring systems.
Main Methods:
- A retrospective analysis of 239 acute pancreatitis patients and 125 controls using MRI.
- Severity grading was performed using the MR Severity Index (MRSI) and APACHE II score.
- Evaluation of MPD visualization, diameter, and duct disruption in relation to pancreatitis severity.
Main Results:
- Fewer MPD segments were visualized in acute pancreatitis patients compared to controls (p<0.05).
- MPD visualization negatively correlated with MRSI and APACHE II scores (p<0.05).
- Pancreatic duct disruption prevalence increased with pancreatitis severity, correlating with both MRSI and APACHE II scores (p<0.05).
Conclusions:
- MPD diameter is not significantly altered in acute pancreatitis.
- The number of visualized MPD segments and the presence of duct disruption on MRI serve as supplementary indicators for assessing acute pancreatitis severity.
Related Concept Videos
Acute Pancreatitis I: Introduction
Acute Pancreatitis I: Introduction
Acute pancreatitis is characterized by rapid inflammation of the pancreas, often caused by factors like gallstone blockage or excessive alcohol consumption. Chronic pancreatitis, on the other hand, is a slow, progressive inflammation that may result from long-term alcohol abuse, obstructions in the pancreatic duct, or genetic factors.
The causes of acute pancreatitis include:
Acute Pancreatitis II: Pathophysiology
Chronic Pancreatitis I: Introduction
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Chronic Pancreatitis I: Introduction
Acute Pancreatitis II: Clinical Manifestations and Management

