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Related Concept Videos

Acute Pancreatitis I: Introduction01:27

Acute Pancreatitis I: Introduction

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Pancreatitis is inflammation of the pancreas, an organ located behind the stomach. It can be either acute or chronic.
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:
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Acute Pancreatitis II: Clinical Manifestations and Management01:30

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Acute pancreatitis presents a complex medical emergency characterized by rapid onset inflammation of the pancreas, demanding timely diagnosis and management to prevent complications. The condition primarily manifests through severe upper abdominal pain that often radiates to the back. This pain intensifies following the consumption of fatty foods. Accompanying symptoms such as nausea, vomiting, abdominal distention, fever, dyspnea, cyanosis, and jaundice can vary in intensity but significantly...
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Correlations02:20

Correlations

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Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
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Correlation and Causation01:27

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Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
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Correlation01:09

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In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
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Correlation and Regression00:53

Correlation and Regression

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In statistics, correlation describes the degree of association between two variables. In the subfield of linear regression, correlation is mathematically expressed by the correlation coefficient, which describes the strength and direction of the relationship between two variables. The coefficient is symbolically represented by 'r' and ranges from -1 to +1. A positive value indicates a positive correlation where the two variables move in the same direction. A negative value suggests a...
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Related Experiment Video

Updated: Jan 28, 2026

Posterior Approach for Debridement of the Psoas Abscess
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Correlation between acute pancreatitis and total psoas area.

Xiangbo Liu1, Yuling Zhang1, Guangming Yang1

  • 1Department of Radiology, Xiamen Chang Gung Hospital, Hua Qiao University, Quanzhou, Fujian, China.

Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
|January 27, 2026
PubMed
Summary

Measuring the psoas major muscle cross-sectional area (TPA) can predict acute pancreatitis progression. A smaller TPA indicates a higher risk of developing moderate to severe acute pancreatitis, enabling earlier interventions.

Keywords:
acute pancreatitisacute pancreatitis outcomeslumbar vertebrapsoas muscle sizetotal psoas area

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Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Clinical Diagnostics

Background:

  • Acute pancreatitis poses significant mortality risks, particularly in moderate to severe cases.
  • Predictive markers are crucial for timely clinical interventions.
  • The psoas major muscle's cross-sectional area (TPA) is explored as a novel predictive indicator.

Purpose of the Study:

  • To evaluate the efficacy of TPA measurement in predicting acute pancreatitis progression.
  • To establish a TPA threshold for differentiating mild from moderate-to-severe acute pancreatitis.
  • To correlate TPA with disease severity for proactive management.

Main Methods:

  • Analysis of data from 112 acute pancreatitis patients categorized by the 2012 Atlanta criteria.
  • Measurement of TPA at the L3 vertebral level and calculation of TPA/normal TPA ratios.
  • Application of Chi-square tests and ROC curve analysis to TPA ratio data.

Main Results:

  • Significant differences in TPA ratios were observed between mild and moderate-to-severe pancreatitis groups.
  • An optimal TPA/normal TPA ratio threshold of 1.056 was identified via ROC analysis.
  • This threshold demonstrated 62.2% sensitivity and 80% specificity (AUC=0.761) for predicting progression.

Conclusions:

  • A reduced TPA is a significant risk factor for acute pancreatitis progression to moderate or severe stages.
  • TPA measurement offers a potential tool for early risk stratification in acute pancreatitis.
  • This finding supports proactive clinical interventions to improve outcomes in at-risk patients.