10 July 2013 Pilot study assessment of dynamic vascular changes in breast cancer with near-infrared tomography from prospectively targeted manipulations of inspired end-tidal partial pressure of oxygen and carbon dioxide
Author Affiliations +
Abstract
The dynamic vascular changes in the breast resulting from manipulation of both inspired end-tidal partial pressure of oxygen and carbon dioxide were imaged using a 30 s per frame frequency-domain near-infrared spectral (NIRS) tomography system. By analyzing the images from five subjects with asymptomatic mammography under different inspired gas stimulation sequences, the mixture that maximized tissue vascular and oxygenation changes was established. These results indicate maximum changes in deoxy-hemoglobin, oxygen saturation, and total hemoglobin of 21, 9, and 3%, respectively. Using this inspired gas manipulation sequence, an individual case study of a subject with locally advanced breast cancer undergoing neoadjuvant chemotherapy (NAC) was analyzed. Dynamic NIRS imaging was performed at different time points during treatment. The maximum tumor dynamic changes in deoxy-hemoglobin increased from less than 7% at cycle 1, day 5 (C1, D5) to 17% at (C1, D28), which indicated a complete response to NAC early during treatment and was subsequently confirmed pathologically at the time of surgery.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Shudong Jiang, Shudong Jiang, Brian W. Pogue, Brian W. Pogue, Kelly E. Michaelsen, Kelly E. Michaelsen, Michael Jermyn, Michael Jermyn, Michael A. Mastanduno, Michael A. Mastanduno, Tracy E. Frazee, Tracy E. Frazee, Peter A. Kaufman, Peter A. Kaufman, Keith D. Paulsen, Keith D. Paulsen, } "Pilot study assessment of dynamic vascular changes in breast cancer with near-infrared tomography from prospectively targeted manipulations of inspired end-tidal partial pressure of oxygen and carbon dioxide," Journal of Biomedical Optics 18(7), 076011 (10 July 2013). https://doi.org/10.1117/1.JBO.18.7.076011 . Submission:
JOURNAL ARTICLE
8 PAGES


SHARE
Back to Top