Monitoring total hemoglobin concentration changes across neoadjuvant chemotherapy in PgR-positive and PgR-negative breast cancer with diffuse optical tomography

2019 ◽  
Author(s):  
Mirella L. Altoe ◽  
Alessandro Marone ◽  
Hyun K. Kim ◽  
Mariella Tejada ◽  
Hanina Hibshoosh ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Neoadjuvant Chemotherapy ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Hemoglobin Concentration ◽  
Total Hemoglobin ◽  
Concentration Changes ◽  
Total Hemoglobin Concentration

scholarly journals Effects of neoadjuvant chemotherapy on the contralateral non-tumor-bearing breast assessed by diffuse optical tomography

2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Mirella L. Altoe ◽  
Kevin Kalinsky ◽  
Alessandro Marone ◽  
Hyun K. Kim ◽  
Hua Guo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Neoadjuvant Chemotherapy ◽  
Optical Tomography ◽  
Pathologic Complete Response ◽  
Negative Relationship ◽  
Diffuse Optical Tomography ◽  
Complete Response ◽  
Normal Breast ◽  
Mixed Effect ◽  
Tumor Bearing

Abstract Background The purpose of this study is to evaluate whether the changes in optically derived parameters acquired with a diffuse optical tomography breast imager system (DOTBIS) in the contralateral non-tumor-bearing breast in patients administered neoadjuvant chemotherapy (NAC) for breast cancer are associated with pathologic complete response (pCR). Methods In this retrospective evaluation of 105 patients with stage II–III breast cancer, oxy-hemoglobin (ctO2Hb) from the contralateral non-tumor-bearing breast was collected and analyzed at different time points during NAC. The earliest monitoring imaging time point was after 2–3 weeks receiving taxane. Longitudinal data were analyzed using linear mixed-effects modeling to evaluate the contralateral breast ctO2Hb changes across chemotherapy when corrected for pCR status, age, and BMI. Results Patients who achieved pCR to NAC had an overall decrease of 3.88 μM for ctO2Hb (95% CI, 1.39 to 6.37 μM), p = .004, after 2–3 weeks. On the other hand, non-pCR subjects had a non-significant mean reduction of 0.14 μM (95% CI, − 1.30 to 1.58 μM), p > .05. Mixed-effect model results indicated a statistically significant negative relationship of ctO2Hb levels with BMI and age. Conclusions This study demonstrates that the contralateral normal breast tissue assessed by DOTBIS is modifiable after NAC, with changes associated with pCR after only 2–3 weeks of chemotherapy.

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