Author: C. Balleyguier M.D.
Institute Gustave Roussy, France
Authored date: 2006-10-12
A screening mammogram on a 66-year-old female patient with no family history of breast cancer demonstrated an architectural distortion and dense micro-calcifications at the inferior right breast. An initial ultrasound confirmed a 19-mm, irregular, hypo echoic and hyper vascular nodule in that breast. A contrast enhanced ultrasound (CEUS) was ordered to help stage and characterize the cancer. Contrast enhancement can improve detection of angiogenesis by overcoming visualization difficulties created by poor blood vessel density in the periphery of breast-cancer lesions.
The screening mammogram detects architectural distortion and micro-calcifications; 2D ultrasound confirms an irregular, hypo echoic and hyper vascular nodule.
Contrast enhanced ultrasound demonstrates an irregular nodule with spiculated enhanced areas, indicative of malignancy.
Pathology studies on a fine-needle aspiration indicated adenocarcinoma. The patient had a lumpectomy, followed by chemotherapy, radiation and hormone therapy. Early detection, plus superior characterization methods like CEUS, can help improve the probability of recovery.
The study was enhanced by employing Cadence™ contrast pulse sequencing (CPS) technology. CPS improves sensitivity at high ultrasound frequencies (>7 MHz needed for breast imaging) by overcoming the challenges associated with the native resonant frequencies of the contrast agents (1.5 MHz – 7 MHz). The technology provides excellent special resolution; mix and live dual modes increase confidence when evaluating breast lesions for angiogenesis. Auto-tracking contrast quantification, performed on the syngo® US Workplace software platform, improves online and offline evaluation accuracy. CEUS in breast exams can be considered for same indications as a breast MRI, including characterization, BIRADS (Breast Imaging Reporting and Data System) coding, staging, and tracking of treatment response, recurrence and fibrosis. No ionizing radiation is involved, and patients tolerate the contrast agents well.*
* At the time of publication, the US Food and Drug Administration cleared ultrasound contrast agents only for use in LVD. Check the current regulation for the country in which you are using the system for contrast agent clearance.