Diagnostic Accuracy of Transabdominal Ultrasound and Computed
                    Tomography in Chronic Pancreatitis: A Head-to-Head Comparison

Ingrid Kvåle Nordaas; Trond Engjom; Odd Helge Gilja; Roald Flesland Havre; Dag André Sangnes; Ingfrid S. Haldorsen; Georg Dimcevski

doi:10.1055/a-1542-9146

Ultrasound International Open, Inhaltsverzeichnis

CC BY-NC-ND 4.0 · Ultrasound Int Open 2021; 07(01): E35-E44
DOI: 10.1055/a-1542-9146

Original Article

Diagnostic Accuracy of Transabdominal Ultrasound and Computed Tomography in Chronic Pancreatitis: A Head-to-Head Comparison

Authors

Ingrid Kvåle Nordaas

¹National Centre for Ultrasound in Gastroenterology, Department of Medicine, Helse Bergen HF, Haukeland University Hospital, Bergen, Norway

²Department of Clinical Medicine, University of Bergen, Bergen, Norway
Trond Engjom

¹National Centre for Ultrasound in Gastroenterology, Department of Medicine, Helse Bergen HF, Haukeland University Hospital, Bergen, Norway

²Department of Clinical Medicine, University of Bergen, Bergen, Norway
Odd Helge Gilja

¹National Centre for Ultrasound in Gastroenterology, Department of Medicine, Helse Bergen HF, Haukeland University Hospital, Bergen, Norway

²Department of Clinical Medicine, University of Bergen, Bergen, Norway
Roald Flesland Havre

¹National Centre for Ultrasound in Gastroenterology, Department of Medicine, Helse Bergen HF, Haukeland University Hospital, Bergen, Norway

²Department of Clinical Medicine, University of Bergen, Bergen, Norway
Dag André Sangnes

¹National Centre for Ultrasound in Gastroenterology, Department of Medicine, Helse Bergen HF, Haukeland University Hospital, Bergen, Norway

²Department of Clinical Medicine, University of Bergen, Bergen, Norway
Ingfrid S. Haldorsen

²Department of Clinical Medicine, University of Bergen, Bergen, Norway

³Mohn Medical Imaging and Visualization Centre, Department of Radiology, Helse Bergen HF, Haukeland University Hospital, Bergen, Norway
Georg Dimcevski

¹National Centre for Ultrasound in Gastroenterology, Department of Medicine, Helse Bergen HF, Haukeland University Hospital, Bergen, Norway

²Department of Clinical Medicine, University of Bergen, Bergen, Norway

Abstract

Purpose Computed tomography (CT) is the most used imaging modality for diagnosing chronic pancreatitis (CP), but advances in transabdominal ultrasound (US) technology have given US a position as a viable alternative. We aimed to evaluate the diagnostic accuracy of abdominal CT and pancreatic US compared to the reference standard, a modified Mayo score.

Materials and Methods CT, US, and endoscopic ultrasound (EUS) were performed in patients referred due to suspected CP. The modified Mayo score included EUS results, clinical presentation, and results from exocrine and endocrine pancreatic function tests. We scored CT findings according to the modified Cambridge classification and US findings according to the Rosemont classification.

Results In total, 73 patients were included. 53 patients (73%) were categorized as CP and 20 (27%) as non-CP. CT and US yielded similar sensitivities (68% and 64%, respectively) and specificities (75 and 85%, respectively) and similar areas under the receiver operating characteristic curves for diagnosing CP. We found no significant differences between the areas under the receiver operating characteristic curves (AUROCs) for CT (AUROC 0.75, 95% CI 0.63–0.87) and US (AUROC 0.81, 95% CI 0.71–0.91).

Conclusion We conclude that CT and US had comparable, moderate accuracy in diagnosing CP. Neither modality had high enough sensitivity to exclude the diagnosis as a standalone method.

Key words

chronic pancreatitis - CT - pancreas - pancreatitis - ultrasound

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Referenzen

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