{"paper_id":"6b7bcebe-58ee-4bf8-a520-ca244ad9131f","body_text":"Abstract\nPurpose\nTo investigate the feasibility of acoustic radiation force impulse imaging in differentiation of endometriomas and hemorrhagic ovarian cysts.\nMaterials and methods\nWe evaluated 84 ovarian cysts with high internal echogenicity diagnosed in 70 consecutive women. We excluded simple cysts and hemorrhagic cysts containing septations or mural nodules with detectable flow on Doppler ultrasonography. We obtained the elastographic shear wave velocity (SWV) value of the cysts that could be endometriomas or hemorrhagic ovarian cysts.\nResults\nAmong the 78 ovarian cysts in 70 women without any septation or mural nodule, there were 42 endometriomas and 36 hemorrhagic ovarian cysts. Analysis of median SWV values of the ovarian cysts showed that the endometriomas had considerably higher levels of stiffness compared to the hemorrhagic ovarian cysts [median SWV 4.20 ± 0.42 vs 2.54 ± 1.04 m/s, p < 0.001]. A SWV cutoff value greater than 3.81 m/s yielded sensitivity and specificity values of 82.1 and 79.2 % respectively, for differentiation of endometriomas from hemorrhagic ovarian cysts.\nConclusion\nSonoelastography is a novel imaging technique that enables us to evaluate the stiffness of adnexal lesions. The accurate discrimination of endometriomas and hemorrhagic ovarian cysts is important for avoiding unnecessary surgical procedures. ARFI imaging has a high sensitivity and specificity for distinguishing endometrioma from hemorrhagic ovarian cysts.\nSimilar content being viewed by others\nReferences\nPark SB, Lee JB. MRI features of ovarian cystic lesions. J Magn Reson Imaging. 2014;40:503–15.\nBalaban M, Idilman IS, Toprak H, et al. The utility of diffusion-weighted magnetic resonance imaging in differentiation of endometriomas from hemorrhagic ovarian cysts. Clin Imaging. 2015. doi:10.1016/j.clinimag.2015.05.003.\nAthey PA, Diment DD. 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A preliminary investigation of normal pancreas and acute pancreatitis elasticity using virtual touch tissue quantification (VTQ) imaging. Med Sci Monit. 2015;21:1693–9.\nAuthor information\nAuthors and Affiliations\nCorresponding author\nEthics declarations\nConflict of interest\nThe authors declare that they have no conflict of interest.\nEthical statement\nAll procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008. Informed consent was obtained from all patients for being included in the study.\nAbout this article\nCite this article\nBatur, A., Yavuz, A., Ozgokce, M. et al. The utility of ultrasound elastography in differentiation of endometriomas and hemorrhagic ovarian cysts. J Med Ultrasonics 43, 395–400 (2016). https://doi.org/10.1007/s10396-016-0701-5\nReceived:\nAccepted:\nPublished:\nIssue date:\nDOI: https://doi.org/10.1007/s10396-016-0701-5","source_license":"CC0","license_restricted":false}