VisR Ultrasound for Noninvasively Interrogating Stromal Collagen Organization in Women as a Breast Cancer Biomarker: Evaluation of Anisotropy in Cancer Patients
UNC Lineberger Comprehensive Cancer Center
Summary
Purpose: This study will evaluate how measurements of tissue stiffness, viscosity, and anisotropy using non-invasive ultrasound imaging correlate with breast tumor malignancy and response to chemotherapy. Participants: Up to 200 women with benign or malignant breast tumors for arm 1 and up to 50 women undergoing neoadjuvant chemotherapy in the breast for arm 2 will be recruited. Procedures (methods): The research team will use an ultrasound scanner to acquire non-invasive elastography data from the breast of each subject, testing a range of transducer rotation angles. Transducer position will be monitored using a position sensor during imaging.
Description
The purpose of the proposed research is to evaluate in vivo the feasibility of ultrasound-derived metrics for stiffness, elasticity, viscosity, and anisotropy for clinical diagnostic breast imaging. These biomarkers will be measured using novel, noninvasive ultrasound technologies under development in Dr. Gallippi's laboratory: 1) Acoustic Radiation Force Impulse (ARFI) ultrasound for interrogating tissue stiffness, 2) Viscoelastic Response (VisR) ultrasound for assessing tissue elasticity and viscosity, and 3) Dynamic Displacement Anisotropy Imaging (DDAI) for measuring tissue anisotropy. Thi…
Eligibility
- Age range
- 20–90 years
- Sex
- Female
- Healthy volunteers
- No
Inclusion Criteria (Arm 1): * Subjects are 20-90 years of age * Subjects are female * Breast lesion is sonographically visible with B-Mode ultrasound on diagnostic workup * Breast lesion(s) have BI-RADS 4a, 4b, 4c, or 5 rating Exclusion Criteria (Arm 1): * Inability to provide informed consent * Inability to communicate in English * Inability to remain motionless for 15 minutes * Subjects with breast implants * Breast mass is deeper than 4 cm from skin surface * Subjects who are pregnant or lactating * Subjects who have pacemakers or implanted cardioverters * Subjects with a history of mast…
Interventions
- DeviceUltrasound
Non-invasive breast imaging using VisR ultrasound
Location
- University of North Carolina at Chapel HillChapel Hill, North Carolina