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. 2021 Jul 27;7(1):E25–E34. doi: 10.1055/a-1522-8969

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 2 — Modified CONSORT flowchart for patient recruitment of the study, including number of patients, number of lesion, and CEUS performed (including any follow-ups). The study included all patients who received a renal CEUS examination with an initially unclear lesion on another imaging modality (CT/US/MRI). In six outpatients the initial examination modality could not be determined. Patients with incomplete data (n=14) and those with lesions that remained unclear despite different imaging modalities and/or follow-ups had to be excluded (n=12). The remaining patients were classified according to the morphological lesion criterion into solid and cystic lesions, as is often done clinically. The further introduced subgroup of histologically confirmed lesions is not listed in the flowchart, as it contains both solid and cystic lesions. CONSORT = Consolidated Standards of Reporting Trials, CEUS = contrast-enhanced ultrasound, CT = computed tomography, US = ultrasound, MRI = magnetic resonance imaging.