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Utilization of relative evaluation of pancreatic perfusion CT parameters to support appropriate pancreatic adenocarcinoma diagnosis

  • 0Department of Diagnostic Radiology, Faculty of Medicine, Yamagata University, 2-2-2 Iida-Nishi, Yamagata-shi, Yamagata, 990-9585, Japan.
Pancreatology : Official Journal of the International Association of Pancreatology (iap) ... [et Al.] +

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November 17, 2024

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November 17, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Relative evaluation of perfusion computed tomography (PCT) parameters improves pancreatic adenocarcinoma (PAC) diagnosis. Key parameters like blood volume (BV) and blood flow (BF) showed significant differences, enhancing diagnostic accuracy.

Area Of Science

  • Radiology
  • Medical Imaging
  • Oncology

Background

  • Pancreatic adenocarcinoma (PAC) diagnosis can be challenging.
  • Perfusion computed tomography (PCT) offers quantitative imaging parameters.
  • Relative evaluation of PCT parameters may enhance diagnostic performance.

Purpose Of The Study

  • To investigate the diagnostic utility of relative evaluation of perfusion computed tomography (PCT) parameters for pancreatic adenocarcinoma (PAC).

Main Methods

  • Retrospective analysis of 117 patients undergoing PCT (May 2019 - June 2023).
  • Inclusion of patients with mass lesions (MLs) and main pancreatic duct (MPD) abnormalities.
  • Evaluation of blood flow (BF), blood volume (BV), and mean transit time (MTT) using receiver operating characteristic (ROC) analysis for absolute and relative values.

Main Results

  • Relative PCT parameters, particularly blood volume ratios (BVML/Pancreas, BVML/Spleen), demonstrated superior diagnostic performance for PAC compared to absolute values.
  • Blood flow (BFML/Spleen) and blood volume (BVML/Spleen) showed significant differences between PAC and mass-forming pancreatitis (MFP).
  • BVAMP/Spleen and MTTAMP/Spleen achieved high diagnostic accuracy (AUCs of 1 and 0.91, respectively) in differentiating PAC from no diagnosis of malignancy (NDM).

Conclusions

  • Relative evaluation of PCT parameters significantly improves the diagnostic accuracy for pancreatic adenocarcinoma (PAC).
  • PCT parameters, assessed relatively against spleen or pancreas, are valuable tools for differentiating PAC from other pancreatic pathologies.

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