An Investigation Into Dielectric Testing for the Evaluation and Characterisation of Breast Tissue Using a Novel Time-Domain Bioimpedance Tool

Inclusion Criteria: * Attending a breast clinic appointment or other appointment at a participating site * Assigned female sex at time of birth * Aged 18 years or older at time of scan * Willing, able and mentally competent to read, understand, and provide informed consent in English * Patients who wish to enter the NACT sub-study, inclusion in NACT care is required. Exclusion Criteria: * Participants who have undergone biopsy less than 14 days before the TD-BIS scanner session * Participants with implanted electronics anywhere in the body * Participants with breast implants * Participants with nipple piercings (unless they are removed prior to the scan) * Participants who are lactating * Pregnant participants by verbal confirmation * Participants with pacemakers * Participants with open breast wound * Participants who had previous breast surgery (mastectomy, lumpectomy) * Participants who have breast lesion localisation device (i.e., wire, seed, Magseed) \*Patients who wish to enter the NACT sub-study, there is one additional exclusion criteria: * Participants who have any breast surgery prior to the second scan