PMID- 37453910 OWN - NLM STAT- MEDLINE DCOM- 20230731 LR - 20230802 IS - 1879-291X (Electronic) IS - 0301-5629 (Linking) VI - 49 IP - 9 DP - 2023 Sep TI - Reliability of Ultrasound Imaging in Examining Integrity and Inflammation in the Dorsalis Pedis Artery. PG - 2199-2202 LID - S0301-5629(23)00211-9 [pii] LID - 10.1016/j.ultrasmedbio.2023.06.017 [doi] AB - OBJECTIVE: Assessment of small vessel inflammatory diseases such as rheumatoid vasculitis is challenging. Small arteries such as the dorsalis pedis artery (DPA) are difficult to assess for changes in the arterial wall with medical imaging. Ultrasound imaging is a viable tool for examining the integrity and inflammatory changes in the arterial wall; however, no empirical data on its reliability have been described. METHODS: We measured the intra- and inter-rater reliability of ultrasound measurements across five parameters evaluating arterial integrity of the proximal DPA in participants with and without small vessel disease. We recruited 10 participants with rheumatoid arthritis and 10 healthy controls. Two sonographers using ultrasound independently measured DPA lumen diameter, artery diameter, lumen-to-arterial diameter ratio, arterial Doppler velocity and inflammatory changes in the proximal wall of the DPA. The intraclass correlation coefficient (ICC) was used to evaluate 95% confidence intervals within and between raters. Bland-Altman analyses were used to assess limits of agreement and were compared with minimal clinically important differences (MCID). RESULTS: Four of five selected parameters were found to have excellent intra- and inter-rater reliability within and between raters (ICC = 0.903-0.996). Acceptable reliability was found for measurement of arterial blood flow velocity within raters (ICC = 0.815-0.909), but not between raters (ICC = 0.634). Standard mean errors in all parameters were within minimal clinically important differences. CONCLUSION: Ultrasound imaging has been found to be a reliable method of assessment of arterial integrity and inflammation of the proximal DPA in people with small vessel disease. Evaluation of arterial blood flow velocity requires cautious interpretation. CI - Copyright (c) 2023 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved. FAU - Boman, Robyn AU - Boman R AD - School of Health Sciences, Western Sydney University, NSW, Australia. FAU - Penkala, Stefania AU - Penkala S AD - School of Health Sciences, Western Sydney University, NSW, Australia; Translational Health Research Institute, Western Sydney University, NSW, Australia. FAU - Chan, Rosa H M AU - Chan RHM AD - Department of Electrical Engineering, City University of Hong Kong, Hong Kong. FAU - Joshua, Fredrick AU - Joshua F AD - Faculty of Medicine and Health Sciences, Macquarie University, NSW, Australia. FAU - Cheung, Roy T H AU - Cheung RTH AD - School of Health Sciences, Western Sydney University, NSW, Australia; Translational Health Research Institute, Western Sydney University, NSW, Australia. Electronic address: Roy.Cheung@westernsydney.edu.au. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230713 PL - England TA - Ultrasound Med Biol JT - Ultrasound in medicine & biology JID - 0410553 SB - IM MH - Humans MH - Reproducibility of Results MH - Ultrasonography/methods MH - *Ultrasonography, Doppler MH - Arteries MH - *Vascular Diseases MH - Inflammation/diagnostic imaging OTO - NOTNLM OT - Autoimmune disease OT - Blood vessel OT - Measurement agreement COIS- Conflict of interest The authors declare no competing interests. EDAT- 2023/07/16 01:07 MHDA- 2023/07/31 06:43 CRDT- 2023/07/15 22:02 PHST- 2023/05/11 00:00 [received] PHST- 2023/06/06 00:00 [revised] PHST- 2023/06/26 00:00 [accepted] PHST- 2023/07/31 06:43 [medline] PHST- 2023/07/16 01:07 [pubmed] PHST- 2023/07/15 22:02 [entrez] AID - S0301-5629(23)00211-9 [pii] AID - 10.1016/j.ultrasmedbio.2023.06.017 [doi] PST - ppublish SO - Ultrasound Med Biol. 2023 Sep;49(9):2199-2202. doi: 10.1016/j.ultrasmedbio.2023.06.017. Epub 2023 Jul 13.