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Journal of Scientific Research and  Studies

Journal of Scientific Research and Studies Vol. 6(2), pp. 11-14, May, 2019

ISSN 2375-8791

Copyright 2019

Author(s) retain the copyright of this article


Full Length Research Paper

Assessment of gallbladder polyps using point shear-wave elastography: a preliminary observation


Daniel Doykov1,2* and Vladimir Andonov2

1Clinic of Gastroenterology, University Hospital Kaspela, Plovdiv, Bulgaria.
2Department of Internal Diseases, Medical University of Plovdiv, Bulgaria.


*Corresponding author. E-mail:

Accepted 14 May, 2019




Gallbladder polyps are rarely found, but their malignant potential is 5%. Current guidelines recommend cholecystectomy if the size of the polyp exceeds 10 mm. Unfortunately, neoplasia can be found in even smaller lesions. This study aims at evaluating the point shear-wave elastography for the assessment of gallbladder polyps, collecting data from this kind of diagnostics, аnd pointing out the difference in wave propagation between the two types of lesions: benign and malignant. 25 polypoid lesions of the gallbladder were examined with pSWE. Two of them were considered malignant according to the clinical picture and imaging diagnostics, including computed tomography (CT) scan, B-mode ultrasonography and pSWE showing the velocity of a propagating ultrasound wave in meters per second (m/s). Nine patients underwent cholecystectomy, including two cases with malignant polyps. The mean size of the benign gallbladder polyps was 6.5 mm 2.5 mm (range, 517 mm). Meanwhile, the mean size of the malignant polyps was 11.5 mm 2.5 mm (range, 914 mm), showing that one of them was less than 10 mm. The mean velocity of pSWE was 1.45 m/s 0.24 m/s for benign and 2.87 m/s 0.52 m/s for malignant polyps. All benign polyps showed a lower propagation velocity in comparison with the malignant ones. This study demonstrates that pSWE of gallbladder lesions is feasible and may be useful for the differential diagnosis of this disease.

Key words: Elastography, gallbladder, polyp, pSWE.

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Vol. 6 Issue 2

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