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. 2025 May 14;61(5):894. doi: 10.3390/medicina61050894

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© 2025 by the authors.

Published by MDPI on behalf of the Lithuanian University of Health Sciences. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Ultrasound images illustrating vascularity grading in lateral epicondylitis using Doppler imaging: (A) Grade 1: single-vessel activity; (B) Grade 2: Doppler activity ≤ 25%; (C) Grade 3: Doppler activity between 25 and 50%; and (D) Grade 4: Doppler activity ≥ 50%.

Ultrasound images illustrating vascularity grading in lateral epicondylitis using Doppler imaging: (A) Grade 1: single-vessel activity; (B) Grade 2: Doppler activity ≤ 25%; (C) Grade 3: Doppler activity between 25 and 50%; and (D) Grade 4: Doppler activity ≥ 50%.