Optical imaging as an adjunct to sonograph in differentiating benign from malignant breast lesions

Quing Zhu; Emily F. Conant; Britton Chance

doi:10.1117/1.429991

1 April 2000 Optical imaging as an adjunct to sonograph in differentiating benign from malignant breast lesions

Quing Zhu, Emily F. Conant, Britton Chance

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Journal of Biomedical Optics, Vol. 5, Issue 2, (April 2000). https://doi.org/10.1117/1.429991

The role of near infrared (NIR) diffusive light imaging as an adjunct to ultrasound in differentiating benign from malignant lesions was evaluated in 27 mammography patients with infiltrating ductal carcinomas, apocrine metaplasia, fibroadenomas, radial scar and ductal hyperplasia, cysts, and normal tissues. Conventional ultrasound/mammography images were graded based on BI-RADS assessment categories. The spatial NIR measurements were made at wavelengths of 750 and 830 nm. Functional images, such as relative changes of deoxyhemoglobin (deoxyHb) and total blood concentration, were estimated from the dual wavelength measurements. Maximum relative deoxyHb and blood concentration changes were measured, and spatial correlation of masses in relative deoxyHb and blood concentration images for each breast were calculated. For the five biopsy proven benign lesions, ultrasound/mammography diagnoses were suspicious for malignancy (four cases) and highly suspicious for malignancy (one case). Four lesions showed less than 1.0 V maximum deoxyHb and less than 1.5 V maximum blood concentration levels on average and spatial image correlation showed no correlated masses in both deoxyHb and blood concentration images. For the four biopsy proven malignant lesions, ultrasound/mammography diagnoses were highly suspicious for malignancy. Maximum deoxyHb and blood concentration changes were greater than 2.9 V on average except one lesion which showed smaller deoxyHb signal (maximum 0.85 V) but the deoxyHb mass and blood concentration mass were highly correlated.

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Quing Zhu, Emily F. Conant, and Britton Chance "Optical imaging as an adjunct to sonograph in differentiating benign from malignant breast lesions," Journal of Biomedical Optics 5(2), (1 April 2000). https://doi.org/10.1117/1.429991

Published: 1 April 2000

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KEYWORDS

Blood

Ultrasonography

Near infrared

Biopsy

Breast

Tissues

Optical imaging

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