Shear wave versus strain elastography of breast lesions—The value of incorporating boundary tissue assessment

This prospective study compares the diagnostic performance of strain elastography (SE) based on the elastogram to B-mode (E/B) size ratio to shear-wave elastography (SWE) incorporating assessment of boundary tissue stiffness. In this prospective study, 81 women consented to undergo ultrasound (US) e...

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Bibliographic Details
Published in:Clinical imaging 2022-02, Vol.82, p.228-233
Main Authors: Tay, Ian Wei Ming, Sim, Llewellyn Shao-jen, Moey, Tammy Hui Lin, Tan, Karen Pei Pei, Lai, Lily Mei San, Leong, Lester Chee Hao
Format: Article
Language:English
Subjects:
Area Under Curve
Biopsy
Boundary tissue
Breast
Breast - diagnostic imaging
Breast cancer
Breast Neoplasms - diagnostic imaging
Cancer
Diagnosis, Differential
Diagnostic systems
Elasticity Imaging Techniques
Elastogram
Female
Histology
Histopathology
Humans
Prospective Studies
Reproducibility of Results
Sensitivity
Sensitivity and Specificity
Shear wave elastography
Stiff-rim sign
Stiffness
Strain elastography
Tumors
Ultrasonic imaging
Ultrasonography, Mammary
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Summary:This prospective study compares the diagnostic performance of strain elastography (SE) based on the elastogram to B-mode (E/B) size ratio to shear-wave elastography (SWE) incorporating assessment of boundary tissue stiffness. In this prospective study, 81 women consented to undergo ultrasound (US) elastographic assessment prior to biopsy of their mass(es). A total of 101 masses were evaluated with SE and SWE using a single machine (Siemens Acuson S2000). The histopathologic diagnosis was used as the reference standard. The sensitivity, specificity and area under curve (AUC) were obtained for SE and SWE. The sensitivity and specificity of SE using the E/B ratio was 94.7% (95% CI: 87.6 100) and 81.0% (95% CI: 71.3 90.1) respectively. For SWE the sensitivity and specificity was 73.7% (95% CI: 59.7 87.7) and 82.5% (95% CI: 73.2 91.9) respectively. The AUC for SE was higher (0.878) compared to SWE (0.697). SE elastography using the E/B ratio yields diagnostic performance which is superior to SWE incorporating assessment of peripheral stiffness. •Strain elastography (SE) with the E/B ratio has a high cancer detection sensitivity.•The diagnostic performance of SE is superior to shear wave elastography (SWE).•Assessing peripheral tissue stiffness in SWE improves its accuracy.
ISSN:0899-7071
1873-4499
DOI:10.1016/j.clinimag.2021.11.030