The aim of this study was to investigate the optical chemotherapy changes induced by neoadjuvant chemotherapy (NAC) in PgR-positive and PgR-negative breast cancer subtypes using a diffuse optical tomographic breast imaging system (DOTBIS). ctTHb reduction in the tumor volume was greater for patients with PgR-negative, a statistically significant difference of 48.91μM, p = .022, which suggest that PgR-negative tumors are generally less resistant to NAC. These observations indicate that PgR negativity may be combined to optically derived biomarkers for predicting pCR during neoadjuvant chemotherapy.

Date Published: 1 March 2019
PDF: 5 pages
Proc. SPIE 10874, Optical Tomography and Spectroscopy of Tissue XIII, 108741L (1 March 2019); doi: 10.1117/12.2510172

Published in SPIE Proceedings Vol. 10874:
Optical Tomography and Spectroscopy of Tissue XIII
Sergio Fantini; Bruce J. Tromberg; Eva Marie Sevick-Muraca; Paola Taroni, Editor(s)