Measuring Electrical Properties of Breast Tissues

May 31, 2024 updated by: University of Calgary
The goal of this observational study is to use a low-powered microwave imaging system to provide insight into the correlation of electrical properties of breast tissue at microwave frequencies and breast density obtained from mammograms in healthy women between the ages of 18 and 74. The main questions it aims to answer : • Is there a correlation between the electrical properties of breast tissue and breast density obtained from mammograms? Both breasts of each participant will be scanned by the microwave imaging system six times in total.

Study Overview




Intervention / Treatment

Detailed Description

A new approach to imaging that uses low-power microwaves to scan the breast has been developed. Since the imaging system uses low power, there is no risk of tissue heating. The imaging system places the sensors in contact with the breast and does not require compression. The research team at the University of Calgary has previously developed microwave imaging systems that have been tested on volunteers and patients. This included repeated scanning of a group of volunteers to evaluate the consistency of the approach. The information collected from experiences scanning volunteers and patients have been reviewed and translated into a next-generation imaging system design. Aspects of this system have been further improved by Wave View Imaging, which is a company formed by members of the University's research team.

The proposed study involves collecting electrical property measurements of breast tissues and comparing these measurements to clinical information. The investigators also aim to compare regions of interest in the microwave scans with regions of interest in the mammograms. This includes regions dominated by fibroglandular tissues, as well as regions of interest that correspond to anomalies identified in the mammograms

The plan is to scan both breasts of up to 200 volunteers. Each volunteer will participate in a single scanning session. Breast tissue composition (VOLPARA score) will be compared with the microwave properties and registration of mammograms with microwave images will be performed for a more detailed comparison.

Study Type


Enrollment (Estimated)



  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Alberta
      • Calgary, Alberta, Canada
        • Recruiting
        • University of Calgary
        • Contact:
          • Anita Garland

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers



Inclusion Criteria:

  • Must have had a previous mammogram in the last 2 years

Exclusion Criteria:

  • Participants currently undergoing chemotherapy and/or radiation treatment.
  • Participants with breast implants.
  • Participants who are breast or breastfeeding.
  • Participants with active breast infections.
  • Participants with nipple piercings (unless they can be removed prior to scanning).
  • Participants with an implanted electronic device.
  • Participants with physical limitations that prevent them from placing their breasts in the scanner.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: WVI-MIS-01-2022
Healthy volunteers
Microwave scans

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Measurement of electrical properties of breast tissue
Time Frame: 18 months
The electrical properties will be estimated for each volunteer and an image that maps these properties will be created.
18 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Correlation between the electrical properties of breast tissue and breast density
Time Frame: 18 months
Comparison of the microwave images and mammograms in 2 ways: VOLPARA scores versus average electrical properties and comparison of regions of interest in both images
18 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 27, 2024

Primary Completion (Estimated)

January 1, 2026

Study Completion (Estimated)

January 1, 2026

Study Registration Dates

First Submitted

November 6, 2023

First Submitted That Met QC Criteria

November 27, 2023

First Posted (Actual)

December 6, 2023

Study Record Updates

Last Update Posted (Estimated)

June 4, 2024

Last Update Submitted That Met QC Criteria

May 31, 2024

Last Verified

October 1, 2023

More Information

Terms related to this study


Other Study ID Numbers

  • HREBA.CC-22-0112

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?


Drug and device information, study documents

Studies a U.S. FDA-regulated drug product


Studies a U.S. FDA-regulated device product


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