2D shear wave elastography for the assessment of quadriceps entheses-a methodological study

Leong SS 1 , Wong JHD 2 , Rozalli FI 2 , Yahya F 3 , Tee YC 3 , Yamin LSM 4 Show all authors , Razalli MM 5 , Baharuddin H 6

Affiliations 

  • 1 Centre for Medical Imaging Studies, Faculty of Health Sciences, Universiti Teknologi MARA, 42300, Selangor, Malaysia. [email protected]
  • 2 Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
  • 3 Department of Medicine, Faculty of Medicine, Rheumatology Unit, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
  • 4 Centre for Medical Imaging Studies, Faculty of Health Sciences, Universiti Teknologi MARA, 42300, Selangor, Malaysia
  • 5 Department of Radiology, Faculty of Medicine, Universiti Teknologi MARA, 47000, Sungai Buloh, Malaysia
  • 6 Department of Internal Medicine, Faculty of Medicine, Rheumatology Unit, UniversitiTeknologi MARA, 47000, Sungai Buloh, Malaysia
Skeletal Radiol, 2024 Mar;53(3):455-463.
PMID: 37594519 DOI: 10.1007/s00256-023-04425-1

Abstract

OBJECTIVE: To establish the scanning protocol for 2-dimensional shear wave elastography (SWE) on normal entheses by investigating the possible confounding factors that may increase the variability of measured elasticity.

MATERIAL AND METHODS: 30 normal quadriceps entheses were scanned using SWE to compare the stiffness and coefficient variation by changing the ultrasonic coupling gel thickness, knee position, region of interest size, and scanning plane.

RESULTS: No significant difference in median shear wave velocity (SWV) was observed in different coupling gel thicknesses. The median SWV was higher in the knee flexion position than in the extended position (p  0.05). For interobserver reliability for the proposed protocol, the intraclass correlation coefficients was 0.763.

CONCLUSION: In this study, we determined supine position with the knee extended; using 2.0 mm diameter region of interest and image acquisition at the longitudinal plane with thicker layer coupling gel seems most appropriate to reliably image healthy quadriceps entheses with SWE.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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