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153785

Endoscopic Ultrasound (EUS) Elastography and Contrast EnhancedEUS for Discrimination of Pancreatic Masses

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Last updated: 22 Jan 2023

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Abstract

AbstractBackground: Investigate the clinical utility of contrast-enhanced endoscopic ultrasound (CEEUS) and endoscopicultrasound elastography (EUS-E) in diagnosis of pancreaticmasses.Patients and Methods: 30 patients with solid pancreaticfocal lesions were included. All patients were subjected tolaboratory investigations, conventional ultrasound, triphasiccomputed tomography (CT) scan, EUS-E, CEEUS, and EUSFNA. Diagnostic accuracy of EUS-E and CEEUS were com-pared and correlated to the pathology for pancreatic lesions.Results: Malignant lesions were larger in size (32.2±10.3), and had greater SR-E-EUS and more hypovascular pattern. The mean strain ratio was 16.4±8.14 for benign and 67.76 ± 72.45 for malignant lesions (p=0.001). Hypovascular pattern after contrast injection was present in 76% of malignant and 60% of benign lesions (p=0.66). ROC analysis for the mean SR-E-EUS of the region of interest yielded an optimal cutoff of 74.4 with an AUC of 0.91 (95% CI: 0.74-0.98) for the best power distinction for malignancy. It provided a sensitivity and specificity of 75% and 80%, respectively.Conclusion: EUS based novel modalities (CE-EUS andEUS-E) could distinguish between benign and malignantlesions and improve the identification of the vascular patternrespectively. Both techniques could be considered a comple-mentary imaging modality in the characterization of pancreatictumors.

DOI

10.21608/mjcu.2021.153785

Keywords

Contrast-enhanced ultrasound, Endoscopicultrasound elastography

Authors

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MOSTAFA IBRAHIM, M.D.;

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DINA HAMZAWY, M.Sc.

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AYMAN ABD EL-RAHIM, M.D.;

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AHMED ABDEL FATTAH, M.D.

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NAGLAA

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ZAYED, M.D.

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Theodor Bilharz Research Institute* and Tropical Medicine Department, Faculty of Medicine, Cairo University**, Cairo, Egypt

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Volume

89

Article Issue

March

Related Issue

22429

Issue Date

2021-03-01

Receive Date

2020-12-05

Publish Date

2021-03-01

Page Start

181

Page End

187

Print ISSN

0045-3803

Online ISSN

2536-9806

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https://mjcu.journals.ekb.eg/article_153785.html

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https://mjcu.journals.ekb.eg/service?article_code=153785

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22

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Journal

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The Medical Journal of Cairo University

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https://mjcu.journals.ekb.eg/

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Created At

22 Jan 2023