Optical imaging of breast cancer oxyhemoglobin flare correlates with neoadjuvant chemotherapy response one day after starting treatment
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- Darren Roblyer
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA 92617;
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- Shigeto Ueda
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA 92617;
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- Albert Cerussi
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA 92617;
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- Wendy Tanamai
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA 92617;
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- Amanda Durkin
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA 92617;
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- Rita Mehta
- Chao Family Comprehensive Cancer Center, University of California, Irvine Medical Center, Orange, CA 92697; and
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- David Hsiang
- Chao Family Comprehensive Cancer Center, University of California, Irvine Medical Center, Orange, CA 92697; and
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- John A. Butler
- Chao Family Comprehensive Cancer Center, University of California, Irvine Medical Center, Orange, CA 92697; and
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- Christine McLaren
- Chao Family Comprehensive Cancer Center, University of California, Irvine Medical Center, Orange, CA 92697; and
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- Wen-Pin Chen
- Chao Family Comprehensive Cancer Center, University of California, Irvine Medical Center, Orange, CA 92697; and
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- Bruce Tromberg
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA 92617;
説明
<jats:p> 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 ( <jats:italic>n</jats:italic> = 11) and pathologic complete responding tumors ( <jats:italic>n</jats:italic> = 8) on day 1, whereas nonresponders ( <jats:italic>n</jats:italic> = 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. </jats:p>
収録刊行物
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- Proceedings of the National Academy of Sciences
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Proceedings of the National Academy of Sciences 108 (35), 14626-14631, 2011-08-18
Proceedings of the National Academy of Sciences