Ultrasound Based Viscoelasticity Imaging Tool for Differentiation of Breast Lesions.
Nearly 90% of women called back after a suspicious mammogram do not have breast cancer, yet false positives lead to unnecessary biopsies, psychological distress, additional healthcare visits, and significant financial costs. The authors present an in-clinic compression device compatible with commercial ultrasound systems, utilizing Sub-Hertz Analysis of Visco-Elasticity (SAVE) to assess tissue viscoelasticity as a biomarker for malignancy. SAVE combines ultrasound imaging with a computer-controlled axial compression device to measure viscoelastic parameters, improving diagnostic accuracy and reducing subjectivity. The device integrates mechanical, electrical, and software components into a user-friendly tool, automating the SAVE method. Initial tests with breast phantoms showed strong agreement with a standard mechanical testing instrument, demonstrating high accuracy in key parameters such as the primary time constant, T1 (mean absolute error: 5.78%). These results underscore the device's potential for accurate measurement of viscoelastic parameters of tissue with the goal of characterizing breast masses in vivo.Clinical Relevance- This novel compression device, facilitates the accurate application of SAVE method for in-clinic breast lesion assessment, aiming to improve specificity and reduces false positives. Its integration with standard ultrasound systems provides a cost-effective, non-invasive method to distinguish benign from malignant lesions, reducing unnecessary biopsies and patient anxiety. This advancement has the potential to enhance diagnostic workflows and patient care.
Authors
Lundstrom Lundstrom, Krumholz Krumholz, Hedin Hedin, Rosen Rosen, Alizad Alizad, Fatemi Fatemi
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