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Materials and Methods: Nineteen women (median age, 49 years; ranges, 38-71 years) who underwent stereotactic biopsy or ultrasound-guided vacuum-assisted biopsy for suspicious microcalcifications detected at mammography were prospectively enrolled. After biopsy, specimen mammograms were obtained to confirm the removal of microcalcifications. A pair of specimen mammogram were obtained with both TruviewMAG view (DRTECH Corp., Seongnam, Korea) and standard magnification view. Four blinded readers independently evaluated visibility of microcalcifications, contrast and resolution of specimen mammograms using a 10-point scale (1, poor; 10, excellent), and preference. In addition to specimen mammograms, we performed pilot clinical test to evaluate the visibility of microcalcifications in two patients. Results: The visibility of microcalcifications on specimen mammograms obtained with TruviewMAG view was comparable to those obtained with standard magnification view in overall reading (mean, 8.2±1.8 vs. 8.1±1.4, P = .893). The contrast of specimen mammograms obtained with TruviewMAG view was comparable to those obtained with standard magnification view in overall reading (mean, 7.8±1.6 vs. 7.8±1.4, P = .827). The resolution of specimen mammograms obtained with TruviewMAG view was comparable to those obtained with standard magnification view in overall reading (mean, 7.7±1.7 vs. 7.5±1.3, P = .173). Four readers preferred TruviewMAG view and standard magnification view at equal rates. The mean entrance surface dose for TruviewMAG view was 2.88mGy, which was 58.3% reduction compared to 4.94 mGy in standard magnification view. The visibility of microcalcifications were similar in two patients (one with benign fibrocytic change, and the other with invasive ductal carcinoma) Conclusion: The visibility of microcalcifications and image quality of the specimen mammograms obtained with TruviewMAG view was comparable with those obtained with standard magnification view. In clinical patients data, microcalcifications were well visualized on TruviewMAG view, even though prospective study with larger study population is needed to confirm our finding. |
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Mammography
Image quality standards
Visibility
Image quality
Biopsy
Digital mammography
Breast
