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Proceedings Paper

Preliminary data on TruviewMAG to assess the visibility of microcalcifications and image quality of mammograms: comparison with the standard magnification view
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Paper Abstract

Purpose: To compare the visibility of microcalcifications and image quality of specimen mammograms obtained with the digital magnification algorithm(TruviewMAG) view and standard magnification view

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.

Paper Details

Date Published: 16 March 2020
PDF: 6 pages
Proc. SPIE 11312, Medical Imaging 2020: Physics of Medical Imaging, 113125D (16 March 2020); doi: 10.1117/12.2549259
Show Author Affiliations
Soo-Yeon Kim, Seoul National Univ. Hospital (Korea, Republic of)
Wontaek Seo, DRTECH Corp. (Korea, Republic of)
Ann Yi, Seoul National Univ. Hospital (Korea, Republic of)
Su Hyun Lee, Seoul National Univ. Hospital (Korea, Republic of)
Su Min Ha, Seoul National Univ. Hospital (Korea, Republic of)
Eun Sil Kim, Seoul National Univ. Hospital (Korea, Republic of)
Kahee Jung, Seoul National Univ. Hospital (Korea, Republic of)
Yong Ju Na, DRTECH Corp. (Korea, Republic of)
Mijung Jo, DRTECH Corp. (Korea, Republic of)
Choul Woo Shin, DRTECH Corp. (Korea, Republic of)
Jung Min Chang, Seoul National Univ. Hospital (Korea, Republic of)


Published in SPIE Proceedings Vol. 11312:
Medical Imaging 2020: Physics of Medical Imaging
Guang-Hong Chen; Hilde Bosmans, Editor(s)

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