Correction: Ultrasound J (2020) 12:49 https://doi.org/10.1186/s13089-020-00197-0

After publication of this article [1], the authors reported that in this article the affiliation details of affiliations 1 and 3 were incorrectly given as 'King Abdulaziz International Medical Research Center' but should have been 'King Abdullah International Medical Research Center'.

The original article [1] has been corrected.