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Pilot Study to Evaluate High Resolution PET Image-Guidance for Sampling of Breast Abnormalities (PEM-BX)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00606931
Recruitment Status : Completed
First Posted : February 5, 2008
Results First Posted : July 7, 2009
Last Update Posted : July 7, 2009
American Radiology Services, Inc
Boca Raton community Hospital, FL
Diversified Specialty Institutes, Bensalem, PA
Advanced Breast Care Imaging
Epic Imaging
Information provided by:
Naviscan PET Systems

Brief Summary:
The purpose of this pilot clinical study is to test a methodology for using high-resolution Positron Emission Tomography (PET) imaging to guide vacuum-assisted core biopsy of breast abnormalities identified on PET. In order to implement the PET guidance, the study uses the Stereo Navigator accessory to the high-resolution organ-specific PET scanner (PEM Flex™ PET Scanner, Naviscan PET Systems, Inc., San Diego, CA). The Stereo Navigator is an investigational device intended for guiding biopsy needles toward lesions in breasts identified by a physician on a high resolution PET image. The study will evaluate the clinical utility of the Stereo Navigator in guiding the vacuum-assisted core biopsy of breast abnormalities, following the example of prior studies of breast biopsy guided by magnetic resonance imaging (MRI)

Condition or disease Intervention/treatment Phase
Breast Cancer Device: Stereo Navigator Accessory to PEM Flex PET Scanner Not Applicable

Detailed Description:
The study will invite participation from human subjects with newly diagnosed or suspected breast cancer who have one or more breast abnormalities moderately suspicious or highly suggestive of malignancy on breast imaging and requiring biopsy (the lesion(s) of interest). Prospective subjects will be asked to sign IRB-approved consent forms, explaining the use of PET imaging for guiding biopsy of suspicious lesion(s). Up to 30 patients will be recruited in the study. The study will be terminated after approximately 20 subjects undergo PET-guided interventional procedures. In the course of the study, a subject will be injected with 18F-FDG and imaged using the PEM Flex PET scanner. Once an abnormality requiring biopsy is identified on the PET scan, the physician conducting the procedure will use the PET image to plan the biopsy trajectory using the Stereo Navigator Software Module, and use the Stereo Navigator Needle Guide Holder to guide insertion of the introducing stylet toward the lesion. The sampling will be performed using commercially available core biopsy tools routinely used for MRI-guided biopsy.Immediately after the PET-guided biopsy, conventional biopsy markers will be inserted at the biopsy site(s) for correlation with other imaging modalities. Placement of the biopsy marker will be documented using mammography, as per standard clinical practice. Histopathologic results will be correlated with imaging findings. The procedure may be repeated for additional lesions identified on PET at the investigator's discretion.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 22 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Pilot Clinical Study to Evaluate High Resolution PET Imaging- Guidance for Sampling of Breast Abnormalities in Patients With Known or Suspected Breast Cancer
Study Start Date : January 2008
Actual Primary Completion Date : July 2008
Actual Study Completion Date : August 2008

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Biopsy

Arm Intervention/treatment
Experimental: one arm Device: Stereo Navigator Accessory to PEM Flex PET Scanner
For patients with suspicious breast abnormalities seen on high resolution PET image, the patients will be biopsied using commercial vacuum biopsy devices (pre-validated to work with Stereo Navigator) using Naviscan's Stereo Navigator (interventional device) for PET image guidance.

Primary Outcome Measures :
  1. Number of Lesions That Were Successfully Biopsied Using the PET-guided Biopsy Method. [ Time Frame: within two days of obtaining histopathology of the lesion biopsied ]

    Success in completion of the PET guided biopsy of a suspicious lesion was determined by

    1. Alteration in lesion morphology (no change in vs change in lesion morphology) after sampling AND/OR
    2. Visualization of regions with high radioactive uptake within the biopsy specimen consistent with target lesion (focal uptake present vs absent).

Secondary Outcome Measures :
  1. Number of Participants Who Reported Serious Adverse Events After the PET-Guided Biopsy [ Time Frame: Within one week of completing PET-guided biopsy ]

    Serious Adverse Events are defined as events that

    • Are fatal or life-threatening
    • Require in-patient hospitalization or prolong hospitalization
    • Result in permanent or significant disability/incapacity
    • Result in congenital abnormality/birth defect

Other Outcome Measures:
  1. Number of Participants Who Tolerated the PET-Guided Biopsy Procedure [ Time Frame: Within one week of completing PET-guided biopsy ]
    Participants who could tolerate the procedure and complete it. This was ascertained by patient feedback questionnaire asking for overall discomfort rating from 0 to 5, where 0 is no discomfort and 5 was assigned to acute discomfort that prevented subject from completing the procedure.

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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Ages Eligible for Study:   25 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Individuals aged 25 years or older

  • Individuals who have at least one breast imaging finding requiring biopsy, specifically:

    • Individuals who have a breast abnormality(ies) moderately suspicious for or highly suggestive of malignancy on imaging with mammography, ultrasound, or MRI (as per ACR BIRADS™ 4C or 5) and requiring biopsy confirmation OR o Individuals with known breast cancer who have additional imaging abnormality(ies) suspicious for malignancy detected on a high-resolution FDG PET scan
    • Individuals who had recent conventional imaging work-up including x-ray mammography of the breast containing the abnormality of interest.
  • Individuals with suspected tumor size measuring one cm or less on mammography and/or ultrasound and/or MRI if the lesion is visible on any of these modalities, except that each site may enroll up to three patients each where the lesion of interest as measured on mammography (or ultrasound and/or MRI if not detectable on mammography) is more than 1 cm. (Note: The study will target patient enrollment such that at least 50% of the lesions to undergo biopsy across all sites will be less than 1 cm in diameter as measured on mammography, or as measured by other modalities, such as ultrasound, CT, or MRI, if the lesion is not detectable or measurable on mammography.)
  • Individuals who have agreed to participate in the study and who have signed study-specific informed consent

Exclusion Criteria:

  • Women who are or may be pregnant
  • Women who are currently lactating or discontinued breastfeeding < 2 months prior to the study
  • Age less than 25 years
  • Individuals with breast implant(s) in the breast containing the lesion of interest
  • Individuals who are scheduled for a sentinel node procedure using radioactive Tc-99m within 24 hours of PET-guided biopsy
  • Patients with contraindications for core biopsy and other invasive procedures such as blood coagulation disorders, infection, or who are unwilling to discontinue use of anticoagulant medication prior to the procedure
  • Individuals with Type I or poorly controlled Type II diabetes mellitus
  • Individuals with a blood glucose level that is above 140 mg/dl at the time of PEM imaging
  • Inability to provide informed consent
  • Individuals who have had surgery on the study breast(s) within the past 12 months

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00606931

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United States, Florida
Boca Raton Community Hospital
Boca Raton, Florida, United States, 33486
United States, Maryland
American Radiology Services, Greenspring
Timonium, Maryland, United States, 21093
United States, Oregon
Epic Imaging
Portland, Oregon, United States, 97220
United States, Pennsylvania
Advanced Breast Care Imaging
Allentown, Pennsylvania, United States, 18104
Diversified Specialty Institutes
Bensalem, Pennsylvania, United States, 37219
Sponsors and Collaborators
Naviscan PET Systems
American Radiology Services, Inc
Boca Raton community Hospital, FL
Diversified Specialty Institutes, Bensalem, PA
Advanced Breast Care Imaging
Epic Imaging
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Principal Investigator: Judith E Kalinyak, MD, Ph.D Naviscan PET Systems, Inc
Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Judith Kalinyak, MD. Ph.D, Medical Director, Naviscan PET Systems, Inc Identifier: NCT00606931    
Other Study ID Numbers: PEM-07-02
NIH/NCI 5 R44 CA082042-03
First Posted: February 5, 2008    Key Record Dates
Results First Posted: July 7, 2009
Last Update Posted: July 7, 2009
Last Verified: May 2009
Keywords provided by Naviscan PET Systems:
breast cancer
Additional relevant MeSH terms:
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Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases