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Photoacoustic Imaging (PAI) of Suspicious Breast Cancers - A Clinical Feasibility Study

This study has been withdrawn prior to enrollment.
(Insufficient resources)
Information provided by (Responsible Party):
Sanjiv Sam Gambhir, Stanford University Identifier:
First received: November 14, 2011
Last updated: January 27, 2017
Last verified: January 2017
After locating the suspicious lesion/mass with standard of care mammography and/or ultrasound, a photoacoustic scan will be performed in the breast where the lesion is located. After the PA scan a biopsy will be performed, if clinically indicated (based on the mammogram and ultrasound only).

Condition Intervention
Breast Cancer Procedure: Photoacoustic Imaging (PAI)

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: No masking
Primary Purpose: Diagnostic
Official Title: Pilot Photoacoustic Imaging (PAI) of Suspicious Breast Cancers - A Clinical Feasibility Study

Resource links provided by NLM:

Further study details as provided by Sanjiv Sam Gambhir, Stanford University:

Primary Outcome Measures:
  • The lesion visibility on PAI, described using a five-level scale: 1. Not visible 2. Barely visible 3. Fair (or moderately visible) 4. Visible 5. Clearly visible. [ Time Frame: 6 months ]

Secondary Outcome Measures:
  • Measures of hypoxia in the lesion [ Time Frame: 6 months ]

Enrollment: 0
Study Start Date: September 2014
Estimated Study Completion Date: March 2016
Estimated Primary Completion Date: September 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Photo Acoustic Imaging
An exploratory, single armed, pilot study designed to evaluate the feasibility of Photo Acoustic Imaging (PAI) in a clinical setting.
Procedure: Photoacoustic Imaging (PAI)
Standard of Care
Other Name: Hand held photoacoustic probe


Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients must have a breast lesion/mass found at physical examination, mammography or ultrasound (US), that has not been surgically resected
  • Patients may have any of the following characteristics:

    • Taking hormones (e.g., contraceptives, hormone replacement therapy, post-cancer Tamoxifen)
    • Breast implants
    • Previous breast biopsy
    • Previous breast surgery
    • Previous breast cancer
    • High risk of breast cancer (e.g., breast cancer susceptibility gene (BRCA) mutations, other gynecologic cancer)
  • Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria:

  • Patients who have had primary surgical excision of the suspicious finding
  • Pregnant or lactating women
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01780532

Sponsors and Collaborators
Stanford University
Principal Investigator: Sanjiv Gambhir, MD Stanford University
  More Information

Responsible Party: Sanjiv Sam Gambhir, Chair, Dept. of Radiology, Stanford University Identifier: NCT01780532     History of Changes
Other Study ID Numbers: BRS0018
SU-09022011-8372 ( Other Identifier: Stanford University )
21623 ( Other Identifier: Stanford IRB )
Study First Received: November 14, 2011
Last Updated: January 27, 2017

Additional relevant MeSH terms:
Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases processed this record on July 25, 2017