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Cao X, Muller KE, Chamberlin MD, Gui J, Kaufman PA, Schwartz GN, diFlorio-Alexander RM, Pogue BW, Paulsen KD, Jiang S. Near-Infrared Spectral Tomography for Predicting Residual Cancer Burden during Early-Stage Neoadjuvant Chemotherapy for Breast Cancer. Clin Cancer Res 2023; 29:4822-4829. [PMID: 37733788 DOI: 10.1158/1078-0432.ccr-23-1593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/19/2023] [Accepted: 09/20/2023] [Indexed: 09/23/2023]
Abstract
PURPOSE The aim of this study is to investigate whether near-infrared spectral tomography (NIRST) might serve as a reliable prognostic tool to predict residual cancer burden (RCB) in patients with breast cancer undergoing neoadjuvant chemotherapy (NAC) based upon early treatment response measurements. EXPERIMENTAL DESIGN A total of thirty-five patients with breast cancer receiving NAC were included in this study. NIRST imaging was performed at multiple time points, including: before treatment, at end of the first cycle, at the mid-point, and post-NAC treatments. From reconstructed NIRST images, average values of total hemoglobin (HbT) were obtained for both the tumor region and contralateral breast at each time point. RCB scores/classes were assessed by a pathologist using histologic slides of the surgical specimen obtained after completing NAC. Logistic regression of the normalized early percentage change of HbT in the tumor region (ΔHbT%) was used to predict RCB and determine its significance as an indicator for differentiating cases within each RCB class. RESULTS The ΔHbT% at the end of the first cycle, as compared with pretreatment levels, showed excellent prognostic capability in differentiating RCB-0 from RCB-I/II/III or RCB-II from RCB-0/I/III (P < 0.001). Corresponding area under the curve (AUC) values for these comparisons were 0.97 and 0.94, and accuracy values were 0.90 and 0.83, respectively. CONCLUSIONS NIRST holds promise as a potential clinical tool that can be seamlessly integrated into existing clinical workflow within the infusion suite. By providing early assessment of RCB, NIRST has potential to improve breast cancer patient management strategies.
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Affiliation(s)
- Xu Cao
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | | | | | - Jiang Gui
- Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire
| | | | | | | | - Brian W Pogue
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Keith D Paulsen
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Shudong Jiang
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
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Liu Y, Kang Y, Li J, Zhang Y, Jia S, Sun Q, Ma Y, Zhang J, Wang Z, Cao Y, Shen Y. Estrogen Receptor and Claudin-6 Might Play Vital Roles for Long-Term Prognosis in Patients With Luminal A Breast Cancer Who Underwent Neoadjuvant Chemotherapy. Front Oncol 2022; 12:630065. [PMID: 35847894 PMCID: PMC9280129 DOI: 10.3389/fonc.2022.630065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 05/26/2022] [Indexed: 12/04/2022] Open
Abstract
Purpose It is well-known that the pathological complete response (pCR) rate in patients with luminal A cancer (LAC) is lower than those of other subtypes of breast cancer. The phenotype of cancer often alters after neoadjuvant chemotherapy (NAC) which may be related to hypoxia, and the latter might induce the drift of the estrogen receptor (ER). The phenotype drift in local advanced LAC after NAC might influence the long-term prognosis. Methods The oxygen concentration of cancer tissues during NAC was recorded and analyzed (n = 43). The expression of ER and claudin-6 was detected in pre- and post-NAC specimens. Results NAC might induce the cycling intracanceral hypoxia, and the pattern was related to NAC response. The median follow-up time was 61 months. Most of the patients (67%) with stable or increased ER and claudin-6 expression exhibited perfect prognosis (DFS = 100%, 61 months). About 20% of patients with decreased claudin-6 would undergo the poor prognosis (DFS = 22.2%, 61 months). The contrasting prognosis (100% vs. 22.2%) had nothing to do with the response of NAC in the above patients. Only 13% patients had stable claudin-6 and decreased ER, whose prognosis might relate to the response of NAC. Conclusion NAC might induce cycling intracanceral hypoxia to promote the phenotype drift in local advanced LAC, and the changes in ER and claudin-6 after NAC would determine the long-term prognosis.
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Affiliation(s)
- Yushi Liu
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
| | - Ye Kang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jianyi Li
- Department of Breast Surgery, Liaoning Cancer Hospital, Shenyang, China
- *Correspondence: Jianyi Li,
| | - Yang Zhang
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
| | - Shi Jia
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
| | - Qiang Sun
- Department of Breast Surgery, Benxi Iron and Steel Co. General Hospital, Benxi, China
| | - Yan Ma
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
| | - Jing Zhang
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
| | - Zhenrong Wang
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
| | - Yanan Cao
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
| | - Yang Shen
- Department of Breast Surgery, ShengJing Hospital of China Medical University, Shenyang, China
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Evaluation of Intraoperative End-Tidal Carbon Dioxide Change Relates to Length Hospitalisation in Peridiaphragmatic Surgery: A Pilot Study. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1395:95-98. [PMID: 36527620 DOI: 10.1007/978-3-031-14190-4_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Intraoperative evaluation is deeply changed using many new tools, both invasive and non-invasive. Peripheral oxygen saturation percentage (SpO2) is the more reliable method for a non-invasive monitoring of patient's blood oxygen concentration. Capnography (using end-tidal CO2 (EtCO2)) evaluation is an immediate and continuous non-invasive monitoring of carbon dioxide (CO2) in the breathing that provides important information on circulatory status and ventilation.Aim of this study is to perform a preliminary analysis of oxygen change during surgery exploring its possible influence on post-operative evolution. METHODS AND RESULTS Intraoperative evaluation of SpO2 and EtCO2 was performed. Change in each parameter was categorised as 1 point for each five-point variation from baseline value (∆SpO2 as 1 point for each 5%, ∆EtCO2 as 1 point for each 5 mmHg). For each patient, the length of stay (LOS) in the intensive care unit (ICU), total hospitalisation, duration of intervention, surgical risk and complications were recorded. RESULTS We analysed 93 consecutive patients (43 males and 40 females, aged 66.35 ± 9.79 years) that underwent peridiaphragmatic surgery. Forty patients (48.19%) presented complications after surgery. There was no statistically significant difference in age, duration of intervention and length of stay in ICU between complicated and non-complicated patients. As expected, patients with complications present an increased hospitalisation time compared to uncomplicated cases (14.69 ± 11.41 days vs 10.70 ± 6.28 days; p < 0.05). ∆EtCO2 was significantly increased (p < 0.05) in complicated compared to non-complicated. No differences were found in ∆SpO2 between the two groups. Considering the whole population, ∆EtCO2 presents a significant direct correlation to surgical risk, hospitalisation and duration of intervention. CONCLUSION ∆EtCO2 may be related to possible complications after surgery and hospitalisation. An important comparison between SpO2 and EtCO2 and strict monitoring with an intraoperative arterial blood gas (ABG) sample during the main steps of surgery could bring some essential information to understand oxygen changes in intra- and post-operative evolution. However, a further validation analysis is needed before the approach can be used extensively in daily clinical settings.
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Yokoyama T, Taguchi A, Kubota H, Stewart NJ, Matsumoto S, Kirilyuk IA, Hirata H. Simultaneous T 2* mapping of 14N- and 15N-labeled dicarboxy-PROXYLs using CW-EPR-based single-point imaging. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2019; 305:122-130. [PMID: 31271927 DOI: 10.1016/j.jmr.2019.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/21/2019] [Accepted: 06/24/2019] [Indexed: 06/09/2023]
Abstract
This article reports a method of simultaneous T2* mapping of 14N- and 15N-labeled dicarboxy-PROXYLs using 750-MHz continuous-wave electron paramagnetic resonance (CW-EPR) imaging. To separate the spectra of 14N- and 15N-labeled dicarboxy-PROXYLs under magnetic field gradients, an optimization problem for spectral projections was formulated with the spatial total variation as a regularization term and solved using a local search based on the gradient descent algorithm. Using the single-point imaging (SPI) method with spectral projections of each radical, simultaneous T2* mapping was performed for solution samples. Simultaneous T2* mapping enabled visualization of the response of T2* values to the level of dissolved oxygen in the solution. Simultaneous T2* mapping applied to a mouse tumor model demonstrated the feasibility of the reported method for potential application to in vivo oxygenation imaging.
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Affiliation(s)
- Takahito Yokoyama
- Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo 060-0814, Japan
| | - Akihiro Taguchi
- Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo 060-0814, Japan
| | - Harue Kubota
- Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo 060-0814, Japan
| | - Neil J Stewart
- Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo 060-0814, Japan
| | - Shingo Matsumoto
- Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo 060-0814, Japan
| | - Igor A Kirilyuk
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9, Ac. Lavrentieva Ave., Novosibirsk 630090, Russia
| | - Hiroshi Hirata
- Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo 060-0814, Japan.
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Sajjadi AY, Isakoff SJ, Deng B, Singh B, Wanyo CM, Fang Q, Specht MC, Schapira L, Moy B, Bardia A, Boas DA, Carp SA. Normalization of compression-induced hemodynamics in patients responding to neoadjuvant chemotherapy monitored by dynamic tomographic optical breast imaging (DTOBI). BIOMEDICAL OPTICS EXPRESS 2017; 8:555-569. [PMID: 28270967 PMCID: PMC5330555 DOI: 10.1364/boe.8.000555] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/04/2016] [Accepted: 12/05/2016] [Indexed: 05/03/2023]
Abstract
We characterize novel breast cancer imaging biomarkers for monitoring neoadjuvant chemotherapy (NACT) and predicting outcome. Specifically, we recruited 30 patients for a pilot study in which NACT patients were imaged using dynamic tomographic optical breast imaging (DTOBI) to quantify the hemodynamic changes due to partial mammographic compression. DTOBI scans were obtained pre-treatment (referred to as day 0), as well as 7 and 30 days into therapy on female patients undergoing NACT. We present data for the 13 patients who participated in both day 0 and 7 measurements and had evaluable data, of which 7 also returned for day 30 measurements. We acquired optical images over 2 minutes following 4-8 lbs (18-36 N) of compression. The timecourses of tissue-volume averaged total hemoglobin (HbT), as well as hemoglobin oxygen saturation (SO2) in the tumor vs. surrounding tissues were compared. Outcome prediction metrics based on the differential behavior in tumor vs. normal areas for responders (>50% reduction in maximum diameter) vs. non-responders were analyzed for statistical significance. At baseline, all patients exhibit an initial decrease followed by delayed recovery in HbT, and SO2 in the tumor area, in contrast to almost immediate recovery in surrounding tissue. At day 7 and 30, this contrast is maintained in non-responders; however, in responders, the contrast in hemodynamic time-courses between tumor and normal tissue starts decreasing at day 7 and substantially disappears at day 30. At day 30 into NACT, responding tumors demonstrate "normalization" of compression induced hemodynamics vs. surrounding normal tissue whereas non-responding tumors did not. This data suggests that DTOBI imaging biomarkers, which are governed by the interplay between tissue biomechanics and oxygen metabolism, may be suitable for guiding NACT by offering early predictions of treatment outcome.
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Affiliation(s)
- Amir Y Sajjadi
- Optics Division, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA; Department of Radiology, Harvard Medical School, Charlestown, MA 02129, USA; These authors contributed equally to this work;
| | - Steven J Isakoff
- Massachusetts General Hospital Cancer Center, Boston, MA 02114, USA; Department of Medicine, Harvard Medical School, Boston, MA 02114, USA; These authors contributed equally to this work;
| | - Bin Deng
- Optics Division, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA; Department of Radiology, Harvard Medical School, Charlestown, MA 02129, USA
| | - Bhawana Singh
- Optics Division, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA; Department of Radiology, Harvard Medical School, Charlestown, MA 02129, USA
| | - Christy M Wanyo
- Optics Division, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA
| | - Qianqian Fang
- Department of Bioengineering, Northeastern University, Boston, MA 0211, USA
| | - Michelle C Specht
- Massachusetts General Hospital Cancer Center, Boston, MA 02114, USA; Department of Surgery, Harvard Medical School, Boston, MA 02114, USA
| | - Lidia Schapira
- Massachusetts General Hospital Cancer Center, Boston, MA 02114, USA; Department of Medicine, Harvard Medical School, Boston, MA 02114, USA
| | - Beverly Moy
- Massachusetts General Hospital Cancer Center, Boston, MA 02114, USA; Department of Medicine, Harvard Medical School, Boston, MA 02114, USA
| | - Aditya Bardia
- Massachusetts General Hospital Cancer Center, Boston, MA 02114, USA; Department of Medicine, Harvard Medical School, Boston, MA 02114, USA
| | - David A Boas
- Optics Division, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA; Department of Radiology, Harvard Medical School, Charlestown, MA 02129, USA
| | - Stefan A Carp
- Optics Division, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA; Department of Radiology, Harvard Medical School, Charlestown, MA 02129, USA
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Teng F, Cormier T, Sauer-Budge A, Chaudhury R, Pera V, Istfan R, Chargin D, Brookfield S, Ko NY, Roblyer DM. Wearable near-infrared optical probe for continuous monitoring during breast cancer neoadjuvant chemotherapy infusions. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:14001. [PMID: 28114449 PMCID: PMC5289133 DOI: 10.1117/1.jbo.22.1.014001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 12/21/2016] [Indexed: 05/04/2023]
Abstract
We present a new continuous-wave wearable diffuse optical probe aimed at investigating the hemodynamic response of locally advanced breast cancer patients during neoadjuvant chemotherapy infusions. The system consists of a flexible printed circuit board that supports an array of six dual wavelength surface-mount LED and photodiode pairs. The probe is encased in a soft silicone housing that conforms to natural breast shape. Probe performance was evaluated using tissue-simulating phantoms and in vivo normal volunteer measurements. High SNR (71 dB), low source-detector crosstalk ( ? 60 ?? dB ), high measurement precision (0.17%), and good thermal stability (0.22% V rms / ° C ) were achieved in phantom studies. A cuff occlusion experiment was performed on the forearm of a healthy volunteer to demonstrate the ability to track rapid hemodynamic changes. Proof-of-principle normal volunteer measurements were taken to demonstrate the ability to collect continuous in vivo breast measurements. This wearable probe is a first of its kind tool to explore prognostic hemodynamic changes during chemotherapy in breast cancer patients.
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Affiliation(s)
- Fei Teng
- Boston University, Department of Electrical and Computer Engineering and Photonics Center, 8 Saint Mary’s Street, Boston, Massachusetts 02215, United States
| | - Timothy Cormier
- Boston University, Fraunhofer Center for Manufacturing Innovation, 15 Saint Mary’s Street, Brookline, Massachusetts 02446, United States
| | - Alexis Sauer-Budge
- Boston University, Fraunhofer Center for Manufacturing Innovation, 15 Saint Mary’s Street, Brookline, Massachusetts 02446, United States
| | - Rachita Chaudhury
- Boston University, Department of Biomedical Engineering, 44 Cummington Mall, Boston, Massachusetts 02215, United States
| | - Vivian Pera
- Boston University, Department of Biomedical Engineering, 44 Cummington Mall, Boston, Massachusetts 02215, United States
| | - Raeef Istfan
- Boston University, Department of Biomedical Engineering, 44 Cummington Mall, Boston, Massachusetts 02215, United States
| | - David Chargin
- Boston University, Fraunhofer Center for Manufacturing Innovation, 15 Saint Mary’s Street, Brookline, Massachusetts 02446, United States
| | - Samuel Brookfield
- Boston University, Fraunhofer Center for Manufacturing Innovation, 15 Saint Mary’s Street, Brookline, Massachusetts 02446, United States
| | - Naomi Yu Ko
- Boston Medical Center, Section of Hematology and Oncology, Women’s Health Unit, 801 Massachusetts Avenue, First Floor, Boston, Massachusetts 02118, United States
| | - Darren M. Roblyer
- Boston University, Department of Biomedical Engineering, 44 Cummington Mall, Boston, Massachusetts 02215, United States
- Address all correspondence to: Darren M. Roblyer, E-mail:
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Interplay between up-regulation of cytochrome-c-oxidase and hemoglobin oxygenation induced by near-infrared laser. Sci Rep 2016; 6:30540. [PMID: 27484673 PMCID: PMC4971496 DOI: 10.1038/srep30540] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 07/06/2016] [Indexed: 01/11/2023] Open
Abstract
Photobiomodulation, also known as low-level laser/light therapy (LLLT), refers to the use of red-to-near-infrared light to stimulate cellular functions for physiological or clinical benefits. The mechanism of LLLT is assumed to rely on photon absorption by cytochrome c oxidase (CCO), the terminal enzyme in the mitochondrial respiratory chain that catalyzes the reduction of oxygen for energy metabolism. In this study, we used broadband near-infrared spectroscopy (NIRS) to measure the LLLT-induced changes in CCO and hemoglobin concentrations in human forearms in vivo. Eleven healthy participants were administered with 1064-nm laser and placebo treatments on their right forearms. The spectroscopic data were analyzed and fitted with wavelength-dependent, modified Beer-Lambert Law. We found that LLLT induced significant increases of CCO concentration (Δ[CCO]) and oxygenated hemoglobin concentration (Δ[HbO]) on the treated site as the laser energy dose accumulated over time. A strong linear interplay between Δ[CCO] and Δ[HbO] was observed for the first time during LLLT, indicating a hemodynamic response of oxygen supply and blood volume closely coupled to the up-regulation of CCO induced by photobiomodulation. These results demonstrate the tremendous potential of broadband NIRS as a non-invasive, in vivo means to study mechanisms of photobiomodulation and perform treatment evaluations of LLLT.
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Choe R, Putt ME, Carlile PM, Durduran T, Giammarco JM, Busch DR, Jung KW, Czerniecki BJ, Tchou J, Feldman MD, Mies C, Rosen MA, Schnall MD, DeMichele A, Yodh AG. Optically measured microvascular blood flow contrast of malignant breast tumors. PLoS One 2014; 9:e99683. [PMID: 24967878 PMCID: PMC4072684 DOI: 10.1371/journal.pone.0099683] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 05/16/2014] [Indexed: 02/03/2023] Open
Abstract
Microvascular blood flow contrast is an important hemodynamic and metabolic parameter with potential to enhance in vivo breast cancer detection and therapy monitoring. Here we report on non-invasive line-scan measurements of malignant breast tumors with a hand-held optical probe in the remission geometry. The probe employs diffuse correlation spectroscopy (DCS), a near-infrared optical method that quantifies deep tissue microvascular blood flow. Tumor-to-normal perfusion ratios are derived from thirty-two human subjects. Mean (95% confidence interval) tumor-to-normal ratio using surrounding normal tissue was 2.25 (1.92–2.63); tumor-to-normal ratio using normal tissues at the corresponding tumor location in the contralateral breast was 2.27 (1.94–2.66), and using normal tissue in the contralateral breast was 2.27 (1.90–2.70). Thus, the mean tumor-to-normal ratios were significantly different from unity irrespective of the normal tissue chosen, implying that tumors have significantly higher blood flow than normal tissues. Therefore, the study demonstrates existence of breast cancer contrast in blood flow measured by DCS. The new, optically accessible cancer contrast holds potential for cancer detection and therapy monitoring applications, and it is likely to be especially useful when combined with diffuse optical spectroscopy/tomography.
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Affiliation(s)
- Regine Choe
- Department of Biomedical Engineering, University of Rochester, Rochester, New York, United States of America
- * E-mail:
| | - Mary E. Putt
- Department of Biostatistics & Epidemiology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Peter M. Carlile
- Department of Biomedical Engineering, University of Rochester, Rochester, New York, United States of America
| | - Turgut Durduran
- ICFO- Institut de Ciències Fotòniques, Castelldefels (Barcelona), Spain
| | - Joseph M. Giammarco
- Department of Astronomy & Physics, Eastern University, St. Davids, Pennsylvania, United States of America
| | - David R. Busch
- Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Ki Won Jung
- Department of Biomedical Engineering, University of Rochester, Rochester, New York, United States of America
| | - Brian J. Czerniecki
- Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Julia Tchou
- Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Michael D. Feldman
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Carolyn Mies
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Mark A. Rosen
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Mitchell D. Schnall
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Angela DeMichele
- Department of Medicine (Hematology/Oncology), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Arjun G. Yodh
- Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
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Wu B, Gayen SK. Fluorescence tomography of targets in a turbid medium using non-negative matrix factorization. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 89:042708. [PMID: 24827279 DOI: 10.1103/physreve.89.042708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Indexed: 06/03/2023]
Abstract
A near-infrared optical tomography approach for detection, three-dimensional localization, and cross-section imaging of fluorescent targets in a turbid medium is introduced. The approach uses multisource probing of targets, multidetector acquisition of diffusely transmitted fluorescence signal, and a non-negative matrix factorization based blind source separation scheme to obtain three-dimensional location of the targets. A Fourier transform back-projection algorithm provides an estimate of target cross section. The efficacy of the approach is demonstrated in an experiment involving two laterally separated small fluorescent targets embedded in a human breast tissue-simulating sample of thickness 60 times the transport mean free path. The approach could locate the targets within ∼1 mm of their known positions, and provide estimates of their cross sections. The high spatial resolution, fast reconstruction speed, noise tolerance, and ability to detect small targets are indicative of the potential of the approach for detecting and locating fluorescence contrast-enhanced breast tumors in early growth stages, when they are more amenable to treatment.
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Affiliation(s)
- Binlin Wu
- Physics Department, The City College and the Graduate Center of the City University of New York, 160 Convent Avenue, New York, New York 10031, USA
| | - S K Gayen
- Physics Department, The City College and the Graduate Center of the City University of New York, 160 Convent Avenue, New York, New York 10031, USA
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