Dynamic Contrast-Enhanced Magnetic Resonance Imaging for Measuring Perfusion in Pancreatic Ductal Adenocarcinoma and Different Tumor Grade: A Preliminary Single Center Study

Author:

Zaborienė Inga1,Strakšytė Vestina1,Ignatavičius Povilas2ORCID,Barauskas Giedrius2ORCID,Dambrauskienė Rūta3,Žvinienė Kristina1

Affiliation:

1. Department of Radiology, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania

2. Department of Surgery, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania

3. Department of Oncology and Hematology, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania

Abstract

Background: Dynamic contrast-enhanced magnetic resonance imaging is a noninvasive imaging modality that can supply information regarding the tumor anatomy and physiology. The aim of the study was to analyze DCE-MRI perfusion parameters in normal pancreatic parenchymal tissue and PDAC and to evaluate the efficacy of this diagnostic modality in determining the tumor grade. Methods: A single-center retrospective study was performed. A total of 28 patients with histologically proven PDAC underwent DCE-MRI; the control group enrolled 14 patients with normal pancreatic parenchymal tissue; the radiological findings were compared with histopathological data. The study patients were further grouped according to the differentiation grade (G value): well- and moderately differentiated and poorly differentiated PDAC. Results: The median values of Ktrans, kep and iAUC were calculated lower in PDAC compared with the normal pancreatic parenchymal tissue (p < 0.05). The mean value of Ve was higher in PDAC, compared with the normal pancreatic tissue (p < 0.05). Ktrans, kep and iAUC were lower in poorly differentiated PDAC, whereas Ve showed no differences between groups. Conclusions: Ve and iAUC DCE-MRI perfusion parameters are important as independent diagnostic criteria predicting the probability of PDAC; the Ktrans and iAUC DCE-MRI perfusion parameters may serve as effective independent prognosticators preoperatively identifying poorly differentiated PDAC.

Publisher

MDPI AG

Subject

Clinical Biochemistry

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