Optical imaging of breast cancer oxyhemoglobin flare correlates with neoadjuvant chemotherapy response one day after starting treatment
| Autor: | Wen-Pin Chen, Bruce J. Tromberg, Shigeto Ueda, Rita S. Mehta, John Butler, Amanda Durkin, David Hsiang, Christine E. McLaren, Wendy Tanamai, Darren Roblyer, Albert E. Cerussi |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
Chemotherapy Multidisciplinary business.industry medicine.medical_treatment Hemodynamics Breast Neoplasms Biological Sciences medicine.disease Neoadjuvant Therapy Optical imaging Breast cancer Chemotherapy Adjuvant Oxyhemoglobins medicine Humans Female Radiology business Adjuvant Neoadjuvant therapy Chemotherapy response Normal breast |
| Zdroj: | Roblyer, D; Ueda, S; Cerussi, A; Tanamai, W; Durkin, A; Mehta, R; et al.(2011). Optical imaging of breast cancer oxyhemoglobin flare correlates with neoadjuvant chemotherapy response one day after starting treatment. Proceedings of the National Academy of Sciences of the United States of America, 108(35), 14626-14631. doi: 10.1073/pnas.1013103108. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/88r977k5 |
| DOI: | 10.1073/pnas.1013103108. |
| Popis: | Approximately 8–20% of breast cancer patients receiving neoadjuvant chemotherapy fail to achieve a measurable response and endure toxic side effects without benefit. Most clinical and imaging measures of response are obtained several weeks after the start of therapy. Here, we report that functional hemodynamic and metabolic information acquired using a noninvasive optical imaging method on the first day after neoadjuvant chemotherapy treatment can discriminate nonresponding from responding patients. Diffuse optical spectroscopic imaging was used to measure absolute concentrations of oxyhemoglobin, deoxyhemoglobin, water, and lipid in tumor and normal breast tissue of 24 tumors in 23 patients with untreated primary breast cancer. Measurements were made before chemotherapy, on day 1 after the first infusion, and frequently during the first week of therapy. Various multidrug, multicycle regimens were used to treat patients. Diffuse optical spectroscopic imaging measurements were compared with final postsurgical pathologic response. A statistically significant increase, or flare, in oxyhemoglobin was observed in partial responding ( n = 11) and pathologic complete responding tumors ( n = 8) on day 1, whereas nonresponders ( n = 5) showed no flare and a subsequent decrease in oxyhemoglobin on day 1. Oxyhemoglobin flare on day 1 was adequate to discriminate nonresponding tumors from responding tumors. Very early measures of chemotherapy response are clinically convenient and offer the potential to alter treatment strategies, resulting in improved patient outcomes. |
| Databáze: | OpenAIRE |
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