• AI
  • Molecular Imaging
  • CT
  • X-Ray
  • Ultrasound
  • MRI
  • Facility Management
  • Mammography

Semiconductor-based gamma camera finds subcentimeter breast tumors

Article

CONTEXT: Dr. Deborah J. Rhodes and colleagues at the Mayo Clinic in Rochester, MN, have developed a new molecular breast imaging technique that combines a cadmium-zinc-telluride semiconductor detector with light breast compression to improve image resolution. The detector can be placed very close to the breast, eliminating dead space associated with conventional scintimammography. Earlier trials indicated that when equipped with a long-bore collimator, it was superior to conventional gamma cameras.

RESULTS: The gamma camera, equipped with an array of 2.5 x 2.5-mm solid-state detector elements producing a 20 x 20-cm field-of-view, was mounted on a modified mammography gantry. Forty women scheduled for breast biopsy were imaged after the injection of 20 millicuries of technetium-99m sestamibi. The scanner identified 33 of 36 cancerous lesions for an overall sensitivity rate of 92%. It found 19 of 22 surgery-confirmed lesions smaller than 1 cm for a sensitivity of 86%. The study was published in the January issue of Mayo Clinic Proceedings.

IMAGE: Molecular breast imaging using a modified mammography gantry detects invasive cancer in a patient's right breast. Dimensions of the lesion at surgery were 17 x 13 x 19 mm.

IMPLICATIONS: Breast imaging performed with this new technology will cost less than MRI and is not affected by breast density, as is the case with conventional mammography. The technology potentially fills a gap in the current array of breast imaging options, according to Rhodes.

"It will not replace mammograms, ultrasound, or MRI but will offer an important additional option to subgroups of women who are not served well by traditional imaging techniques," she said.

Recent Videos
Current and Emerging Insights on AI in Breast Imaging: An Interview with Mark Traill, Part 1
Addressing Cybersecurity Issues in Radiology
Computed Tomography Study Shows Emergence of Silicosis in Engineered Stone Countertop Workers
Can an Emerging AI Software for DBT Help Reduce Disparities in Breast Cancer Screening?
Skeletal Muscle Loss and Dementia: What Emerging MRI Research Reveals
Magnetoencephalopathy Study Suggests Link Between Concussions and Slower Aperiodic Activity in Adolescent Football Players
Radiology Study Finds Increasing Rates of Non-Physician Practitioner Image Interpretation in Office Settings
Assessing a Landmark Change in CMS Reimbursement for Diagnostic Radiopharmaceuticals
Addressing the Early Impact of National Breast Density Notification for Mammography Reports
2 KOLs are featured in this series.
Related Content
© 2024 MJH Life Sciences

All rights reserved.