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Istfan R, Gómez CA, Applegate M, Rozenberg D, Reid WD, Roblyer D. Hemodynamics of the sternocleidomastoid measured with frequency domain near-infrared spectroscopy towards non-invasive monitoring during mechanical ventilation. BIOMEDICAL OPTICS EXPRESS 2021; 12:4147-4162. [PMID: 34457405 PMCID: PMC8367268 DOI: 10.1364/boe.430423] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/05/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
Mechanical ventilation (MV) is used to assist spontaneous breathing in critically ill patients in the intensive care unit (ICU). MV is a cornerstone of critical care medicine but it is now known that inspiratory muscle dysfunction due to injury, disuse, and/or atrophy during MV plays a major role in outcomes for these patients. For example, prolonged MV is strongly correlated with dysfunction of the sternocleidomastoid (SCM), an accessory inspiratory muscle that has been linked to weaning failure from MV. Hemodynamic monitoring of the SCM may provide an important non-invasive and real-time means to monitor MV. In this work, we first conducted multi-layer Monte Carlo simulations to confirm the ability of near infrared light to detect changes in the oxygenation of the SCM over wide ranges of skin tones and adipose layer thicknesses. We then optimized a custom digital frequency domain near-infrared spectroscopy (FD-NIRS) system for continuous 10 Hz measurements of the SCM at 730 nm and 850 nm. A healthy volunteer study was conducted (N=10); subjects performed sets of isometric neck flexions of the SCM. Substantial changes in oxyhemoglobin + oxymyoglobin (oxy[Hb + Mb]), deoxyhemoglobin + deoxymyoglobin (deoxy[Hb + Mb]), and total hemoglobin + myoglobin (total[Hb + Mb]) were observed during sustained and intermittent isometric flexions. There were notable sex differences observed in the magnitude of hemodynamic changes (∼2x larger changes in males for oxy[Hb + Mb] and deoxy[Hb + Mb]). The magnitude of hemodynamic changes when taking into account µs' changes during flexions was ∼ 2-2.5x larger as compared to assuming constant scattering (CS), which is a common assumption used for continuous wave (CW) NIRS methods. This study suggests that FD-NIRS provides improved accuracy for hemodynamic monitoring of the SCM compared to CW-NIRS, and that FD-NIRS may provide value for SCM monitoring during MV.
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Affiliation(s)
- Raeef Istfan
- Department of Biomedical Engineering, Boston University, Boston, MA 02125, USA
| | - Carlos A. Gómez
- Department of Biomedical Engineering, Boston University, Boston, MA 02125, USA
| | - Matthew Applegate
- Department of Biomedical Engineering, Boston University, Boston, MA 02125, USA
| | - Dmitry Rozenberg
- Department of Medicine, Respirology and Lung Transplantation, University Health Network, University of Toronto, Toronto, ON, Canada
| | - W. Darlene Reid
- Department of Physical Therapy, University of Toronto, Toronto ON, Canada
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
- KITE - Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada
| | - Darren Roblyer
- Department of Biomedical Engineering, Boston University, Boston, MA 02125, USA
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2
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Application and Analysis of Biomedical Imaging Technology in Early Diagnosis of Breast Cancer. Methods Mol Biol 2020; 2204:63-73. [PMID: 32710315 DOI: 10.1007/978-1-0716-0904-0_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Breast cancer is the primary malignant tumor that endangers women's health. The incidence of breast cancer is increasing rapidly in recent years. Accurate disease evaluation before treatment is the key to the selection of treatment options. Biomedical imaging technology plays an irreplaceable role in the diagnosis and staging of tumors. Various imaging methods can provide excellent temporal and spatial resolution from multiple levels and perspectives and have become one of the most commonly used means of breast cancer early detection. With the development of radiomics, it has been found that early imaging diagnosis of breast cancer plays an important guiding role in clinical decision-making. The purpose of this study is to explore the characteristics of various breast cancer imaging technologies, promote the development of individualized accurate diagnosis and treatment of imaging, and improve the clinical application value of radiomics in the early diagnosis of breast cancer.
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3
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Amelard R, Lam JH, Hill B, Durkin A, Cutler K, Tromberg BJ. Monocular 3D Probe Tracking for Generating Sub-Surface Optical Property Maps From Diffuse Optical Spectroscopic Imaging. IEEE Trans Biomed Eng 2019; 67:1872-1881. [PMID: 31670661 DOI: 10.1109/tbme.2019.2950004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Diffuse optical spectroscopic imaging (DOSI) is a promising biophotonic technology for clinical tissue assessment, but is currently hampered by difficult wide area assessment. A co-integrative optical imaging system is proposed for dense sub-surface optical property spatial assessment. METHODS The proposed system fuses a co-aligned set of camera frames and diffuse optical spectroscopy measurements to generate spatial sub-surface optical property maps. A 3D rigid body motion estimation model was developed by fitting automatically detected target features to an a priori geometric model using a single overhead camera. Point-wise optical properties were measured across the tissue using frequency domain photon migration DOSI. The 3D probe trajectory and temporal optical property data were fused to generate 2D spatial optical property maps, which were projected onto the tissue image using pre-calibrated camera parameters. RESULTS The system demonstrated sub-millimeter positional accuracy (error 0.24 ± 0.35 mm) across different probe speeds (1.0-3.8 cm/s), and displacement accuracy in overhead ([Formula: see text] mm) and tilted (0.51 ± 0.51 mm) camera orientations. Unstructured scans on a tumor inclusion phantom showed strong contrast under different probe paths, and significant ( ) changes in optical properties in an in vivo leg cuff occlusion protocol with spatial anatomy localization. CONCLUSION The proposed co-integrative optical imaging system generated dense sub-surface optical property distributions across wide tissue areas with sub-millimeter accuracy at different probe speeds and trajectories, and does not require pre-planned probe route for tissue assessment. SIGNIFICANCE This system provides a valuable tool for real-time non-invasive tissue health and cancer screening, and enables longitudinal disease progression assessment through unstructured probe-based optical tissue assessment.
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4
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Schmidt M, Aguénounon E, Nahas A, Torregrossa M, Tromberg BJ, Uhring W, Gioux S. Real-time, wide-field, and quantitative oxygenation imaging using spatiotemporal modulation of light. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-7. [PMID: 30868804 PMCID: PMC6995963 DOI: 10.1117/1.jbo.24.7.071610] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 01/28/2019] [Indexed: 05/07/2023]
Abstract
Quantitative diffuse optical imaging has the potential to provide valuable functional information about tissue status, such as oxygen saturation or blood content to healthcare practitioners in real time. However, significant technical challenges have so far prevented such tools from being deployed in the clinic. Toward achieving this goal, prior research introduced methods based on spatial frequency domain imaging (SFDI) that allow real-time (within milliseconds) wide-field imaging of optical properties but at a single wavelength. However, for this technology to be useful to clinicians, images must be displayed in terms of metrics related to the physiological state of the tissue, hence interpretable to guide decision-making. For this purpose, recent developments introduced multispectral SFDI methods for rapid imaging of oxygenation parameters up to 16 frames per seconds (fps). We introduce real-time, wide-field, and quantitative blood parameters imaging using spatiotemporal modulation of light. Using this method, we are able to quantitatively obtain optical properties at 100 fps at two wavelengths (665 and 860 nm), and therefore oxygenation, oxyhemoglobin, and deoxyhemoglobin, using a single camera with, at most, 4.2% error in comparison with standard SFDI acquisitions.
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Affiliation(s)
- Manon Schmidt
- University of Strasbourg, ICube Laboratory, Strasbourg, France
| | | | - Amir Nahas
- University of Strasbourg, ICube Laboratory, Strasbourg, France
| | | | - Bruce J. Tromberg
- Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program, Irvine, California, United States
- University of California, Department of Biomedical Engineering, Irvine, California, United States
| | - Wilfried Uhring
- University of Strasbourg, ICube Laboratory, Strasbourg, France
| | - Sylvain Gioux
- University of Strasbourg, ICube Laboratory, Strasbourg, France
- Address all correspondence to Sylvain Gioux, E-mail:
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5
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Panigrahi S, Gioux S. Machine learning approach for rapid and accurate estimation of optical properties using spatial frequency domain imaging. JOURNAL OF BIOMEDICAL OPTICS 2018; 24:1-6. [PMID: 30550050 PMCID: PMC6995874 DOI: 10.1117/1.jbo.24.7.071606] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/16/2018] [Indexed: 05/03/2023]
Abstract
Fast estimation of optical properties from reflectance measurements at two spatial frequencies could pave way for real-time, wide-field and quantitative mapping of vital signs of tissues. We present a machine learning-based approach for estimating optical properties in the spatial frequency domain, where a random forest regression algorithm is trained over data obtained from Monte-Carlo photon transport simulations. The algorithm learns the nonlinear mapping between diffuse reflectance at two spatial frequencies, and the absorption and reduced scattering coefficient of the tissue under consideration. Using this method, absorption and reduced scattering properties could be obtained over a 1 megapixel image in 450 ms with errors as low as 0.556% in absorption and 0.126% in reduced scattering.
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Affiliation(s)
| | - Sylvain Gioux
- University of Strasbourg, ICube Laboratory, Strasbourg, France
- Address all correspondence to: Sylvain Gioux, E-mail:
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6
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Ohmae E, Yoshizawa N, Yoshimoto K, Hayashi M, Wada H, Mimura T, Suzuki H, Homma S, Suzuki N, Ogura H, Nasu H, Sakahara H, Yamashita Y, Ueda Y. Stable tissue-simulating phantoms with various water and lipid contents for diffuse optical spectroscopy. BIOMEDICAL OPTICS EXPRESS 2018; 9:5792-5808. [PMID: 30460162 PMCID: PMC6238899 DOI: 10.1364/boe.9.005792] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 10/12/2018] [Accepted: 10/12/2018] [Indexed: 05/17/2023]
Abstract
We introduced a method for producing solid phantoms with various water-to-lipid ratios that can simulate the absorption, and to some extent the scattering characteristics of human breast tissue. We also achieved phantom stability for a minimum of one month by solidifying the emulsion phantoms. The characteristics of the phantoms were evaluated using the six-wavelength time-domain diffuse optical spectroscopy (TD-DOS) system we developed to measure water and lipid contents and hemoglobin concentration. The TD-DOS measurements were validated with a magnetic resonance imaging system.
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Affiliation(s)
- Etsuko Ohmae
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Nobuko Yoshizawa
- Department of Diagnostic Radiology and Nuclear Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu City, Shizuoka Pref., 431-3192, Japan
| | - Kenji Yoshimoto
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Maho Hayashi
- Department of Diagnostic Radiology and Nuclear Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu City, Shizuoka Pref., 431-3192, Japan
| | - Hiroko Wada
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Tetsuya Mimura
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Hiroaki Suzuki
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Shu Homma
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Norihiro Suzuki
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Hiroyuki Ogura
- Department of Breast Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu City, Shizuoka Pref., 431-3192, Japan
| | - Hatsuko Nasu
- Department of Diagnostic Radiology and Nuclear Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu City, Shizuoka Pref., 431-3192, Japan
| | - Harumi Sakahara
- Department of Diagnostic Radiology and Nuclear Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu City, Shizuoka Pref., 431-3192, Japan
| | - Yutaka Yamashita
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
| | - Yukio Ueda
- Central Research Laboratory, Hamamatsu Photonics K. K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan
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Ahmed SR, Jia JM, Bruza P, Vinogradov S, Jiang S, Gladstone DJ, Jarvis LA, Pogue BW. Radiotherapy-induced Cherenkov luminescence imaging in a human body phantom. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-4. [PMID: 29560623 PMCID: PMC7560997 DOI: 10.1117/1.jbo.23.3.030504] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/26/2018] [Indexed: 05/25/2023]
Abstract
Radiation therapy produces Cherenkov optical emission in tissue, and this light can be utilized to activate molecular probes. The feasibility of sensing luminescence from a tissue molecular oxygen sensor from within a human body phantom was examined using the geometry of the axillary lymph node region. Detection of regions down to 30-mm deep was feasible with submillimeter spatial resolution with the total quantity of the phosphorescent sensor PtG4 near 1 nanomole. Radiation sheet scanning in an epi-illumination geometry provided optimal coverage, and maximum intensity projection images provided illustration of the concept. This work provides the preliminary information needed to attempt this type of imaging in vivo.
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Affiliation(s)
- Syed Rakin Ahmed
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Jeremy Mengyu Jia
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Petr Bruza
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Sergei Vinogradov
- University of Pennsylvania, Departments of Biophysics and Biochemistry and of Chemistry, Philadelphia, Pennsylvania, United States
| | - Shudong Jiang
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - David J. Gladstone
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
- Geisel School of Medicine at Dartmouth, Department of Medicine, Hanover, New Hampshire, United States
- Dartmouth–Hitchcock Medical Center, Norris Cotton Cancer Center, Lebanon, New Hampshire, United States
| | - Lesley A. Jarvis
- Geisel School of Medicine at Dartmouth, Department of Medicine, Hanover, New Hampshire, United States
- Dartmouth–Hitchcock Medical Center, Norris Cotton Cancer Center, Lebanon, New Hampshire, United States
| | - Brian W. Pogue
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
- Dartmouth–Hitchcock Medical Center, Norris Cotton Cancer Center, Lebanon, New Hampshire, United States
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8
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Anderson PG, Kalli S, Sassaroli A, Krishnamurthy N, Makim SS, Graham RA, Fantini S. Optical Mammography in Patients with Breast Cancer Undergoing Neoadjuvant Chemotherapy: Individual Clinical Response Index. Acad Radiol 2017; 24:1240-1255. [PMID: 28532642 DOI: 10.1016/j.acra.2017.03.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 12/28/2022]
Abstract
RATIONALE AND OBJECTIVES We present an optical mammography study that aims to develop quantitative measures of pathologic response to neoadjuvant chemotherapy (NAC) in patients with breast cancer. Such quantitative measures are based on the concentrations of oxyhemoglobin ([HbO2]), deoxyhemoglobin ([Hb]), total hemoglobin ([HbT]), and hemoglobin saturation (SO2) in breast tissue at the tumor location and at sequential time points during chemotherapy. MATERIALS AND METHODS Continuous-wave, spectrally resolved optical mammography was performed in transmission and parallel-plate geometry on 10 patients before treatment initiation and at each NAC administration (mean number of optical mammography sessions: 12, range: 7-18). Data on two patients were discarded for technical reasons. The patients were categorized as responders (R, >50% decrease in tumor size), or nonresponders (NR, <50% decrease in tumor size) based on imaging and histopathology results. RESULTS At 50% completion of the NAC regimen (therapy midpoint), R (6/8) demonstrated significant decreases in SO2 (-27% ± 4%) and [HbT] (-35 ± 4 µM) at the tumor location with respect to baseline values. By contrast, NR (2/8) showed nonsignificant changes in SO2 and [HbT] at therapy midpoint. We introduce a cumulative response index as a quantitative measure of the individual patient's response to therapy. At therapy midpoint, the SO2-based cumulative response index had a sensitivity of 100% and a specificity of 100% for the identification of R. CONCLUSIONS These results show that optical mammography is a promising tool to assess individual response to NAC at therapy midpoint to guide further decision making for neoadjuvant therapy.
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Affiliation(s)
- Pamela G Anderson
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155
| | - Sirishma Kalli
- Department of Radiology, Tufts Medical Center, Boston, Massachusetts
| | - Angelo Sassaroli
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155
| | - Nishanth Krishnamurthy
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155
| | - Shital S Makim
- Department of Radiology, Tufts Medical Center, Boston, Massachusetts
| | - Roger A Graham
- Department of Surgery, Tufts Medical Center, Boston, Massachusetts
| | - Sergio Fantini
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155.
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9
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Yazdi HS, O’Sullivan TD, Leproux A, Hill B, Durkin A, Telep S, Lam J, Yazdi SS, Police AM, Carroll RM, Combs FJ, Strömberg T, Yodh AG, Tromberg BJ. Mapping breast cancer blood flow index, composition, and metabolism in a human subject using combined diffuse optical spectroscopic imaging and diffuse correlation spectroscopy. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:45003. [PMID: 28384703 PMCID: PMC5381696 DOI: 10.1117/1.jbo.22.4.045003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 03/13/2017] [Indexed: 05/18/2023]
Abstract
Diffuse optical spectroscopic imaging (DOSI) and diffuse correlation spectroscopy (DCS) are model-based near-infrared (NIR) methods that measure tissue optical properties (broadband absorption, ? a , and reduced scattering, ? s ? ) and blood flow (blood flow index, BFI), respectively. DOSI-derived ? a values are used to determine composition by calculating the tissue concentration of oxy- and deoxyhemoglobin ( HbO 2 , HbR), water, and lipid. We developed and evaluated a combined, coregistered DOSI/DCS handheld probe for mapping and imaging these parameters. We show that uncertainties of 0.3 ?? mm ? 1 (37%) in ? s ? and 0.003 ?? mm ? 1 (33%) in ? a lead to ? 53 % and 9% errors in BFI, respectively. DOSI/DCS imaging of a solid tissue-simulating flow phantom and
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MESH Headings
- Adult
- Carcinoma, Ductal, Breast/blood supply
- Carcinoma, Ductal, Breast/diagnostic imaging
- Carcinoma, Ductal, Breast/drug therapy
- Diffusion
- Female
- Hemoglobins/analysis
- Humans
- Lipids/blood
- Models, Theoretical
- Neoadjuvant Therapy
- Oxyhemoglobins/analysis
- Phantoms, Imaging
- Spectrophotometry/methods
- Spectroscopy, Near-Infrared/methods
- Tomography, Optical/methods
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Affiliation(s)
- Hossein S. Yazdi
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Thomas D. O’Sullivan
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Anais Leproux
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Brian Hill
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Amanda Durkin
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Seraphim Telep
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Jesse Lam
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Siavash S. Yazdi
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
| | - Alice M. Police
- University of California, Chao Family Comprehensive Cancer Center, Orange, California, United States
| | - Robert M. Carroll
- University of California, Chao Family Comprehensive Cancer Center, Orange, California, United States
| | - Freddie J. Combs
- University of California, Chao Family Comprehensive Cancer Center, Orange, California, United States
| | - Tomas Strömberg
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
- Linköping University, Department of Biomedical Engineering, Linköping, Sweden
| | - Arjun G. Yodh
- University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, Pennsylvania, United States
| | - Bruce J. Tromberg
- University of California, Beckman Laser Institute and Medical Clinic, Irvine, California, United States
- Address all correspondence to: Bruce J. Tromberg, E-mail:
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10
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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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11
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Ramirez G, Proctor AR, Jung KW, Wu TT, Han S, Adams RR, Ren J, Byun DK, Madden KS, Brown EB, Foster TH, Farzam P, Durduran T, Choe R. Chemotherapeutic drug-specific alteration of microvascular blood flow in murine breast cancer as measured by diffuse correlation spectroscopy. BIOMEDICAL OPTICS EXPRESS 2016; 7:3610-3630. [PMID: 27699124 PMCID: PMC5030036 DOI: 10.1364/boe.7.003610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 05/08/2023]
Abstract
The non-invasive, in vivo measurement of microvascular blood flow has the potential to enhance breast cancer therapy monitoring. Here, longitudinal blood flow of 4T1 murine breast cancer (N=125) under chemotherapy was quantified with diffuse correlation spectroscopy based on layer models. Six different treatment regimens involving doxorubicin, cyclophosphamide, and paclitaxel at clinically relevant doses were investigated. Treatments with cyclophosphamide increased blood flow as early as 3 days after administration, whereas paclitaxel induced a transient blood flow decrease at 1 day after administration. Early blood flow changes correlated strongly with the treatment outcome and distinguished treated from untreated mice individually for effective treatments.
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Affiliation(s)
- Gabriel Ramirez
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Ashley R. Proctor
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Ki Won Jung
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Tong Tong Wu
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY 14642,
USA
| | - Songfeng Han
- The Institute of Optics, University of Rochester, Rochester, NY 14627,
USA
| | - Russell R. Adams
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Jingxuan Ren
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Daniel K. Byun
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Kelley S. Madden
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Edward B. Brown
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Thomas H. Foster
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
- The Institute of Optics, University of Rochester, Rochester, NY 14627,
USA
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY 14642,
USA
| | - Parisa Farzam
- ICFO- Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona),
Spain
| | - Turgut Durduran
- ICFO- Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona),
Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08015 Barcelona,
Spain
| | - Regine Choe
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY 14627,
USA
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12
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Czarnota GJ. Ultrasound-stimulated microbubble enhancement of radiation response. Biol Chem 2016; 396:645-57. [PMID: 25741736 DOI: 10.1515/hsz-2014-0297] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 02/10/2015] [Indexed: 01/22/2023]
Abstract
Cancer therapies result in the killing of cancer cells but remain largely ineffective, with most patients dying of their disease. The methodology described here is a new image-guided cancer treatment under development that relies on physical methods to alter tumour biology. It enhances tumour responses to radiation significantly by synergistically destroying tumour blood vessels using microbubbles. It achieves tumour specificity by confining the ultrasonic fields that stimulate microbubbles to tumour location only. By perturbing tumour vasculature and activating specific genetic pathways in endothelial cells, the technique has been demonstrated to sensitise the targeted tissues to subsequent therapeutic application of radiation, resulting in significantly enhanced cell killing through a ceramide-dependent pathway initiated at the cell membrane. The treatment reviewed here destroys blood vessels, significantly enhancing the anti-vascular effect of radiation and improving tumour cure. The significant enhancement of localised tumour cell kill observed with this method means that radiation-based treatments can be potentially made more potent and lower doses of radiation utilised. The technique has the potential to have a profound impact on the practice of radiation oncology by offering a novel and safe means of reducing normal tissue toxicity while at the same time significantly increasing treatment effectiveness.
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13
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Jiang S, Pogue BW, Kaufman PA, Gui J, Jermyn M, Frazee TE, Poplack SP, DiFlorio-Alexander R, Wells WA, Paulsen KD. Predicting breast tumor response to neoadjuvant chemotherapy with diffuse optical spectroscopic tomography prior to treatment. Clin Cancer Res 2014; 20:6006-15. [PMID: 25294916 DOI: 10.1158/1078-0432.ccr-14-1415] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
PURPOSE To determine whether pretreatment biomarkers obtained from diffuse optical spectroscopic tomographic (DOST) imaging predicts breast tumor response to neoadjuvant chemotherapy (NAC), which would have value to potentially eliminate delays in prescribing definitive local regional therapy that may occur from a standard complete 6- to 8-month course of NAC. EXPERIMENTAL DESIGN Nineteen patients undergoing NAC were imaged with DOST before, during, and after treatment. The DOST images of total hemoglobin concentration (HbT), tissue oxygen saturation (StO2), and water (H2O) fraction at different time points have been used for testing the abilities of differentiating patients having pathologic complete response (pCR) versus pathologic incomplete response (pIR). RESULTS Significant differences (P < 0.001, AUC = 1.0) were found between pCR patients versus pIR in outcome, based on the percentage change in tumor HbT within the first cycle of treatment. In addition, pretreatment tumor HbT (pretreatment HbT) relative to the contralateral breast was statistically significant (P = 0.01, AUC = 0.92) in differentiating pCR from pIR. CONCLUSIONS This is the first clinical evidence that DOST HbT may differentiate the two groups with predictive significance based on data acquired before NAC even begins. The study also demonstrates the potential of accelerating the validation of optimal NAC regimens through future randomized clinical trials by reducing the number of patients required and the length of time they need to be followed by using a validated imaging surrogate as an outcome measure.
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Affiliation(s)
- Shudong Jiang
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire.
| | - Brian W Pogue
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Peter A Kaufman
- Department of Medicine, Giesel School of Medicine, Hanover, New Hampshire
| | - Jiang Gui
- Department of Community and Family Medicine, Giesel School of Medicine, Hanover, New Hampshire
| | - Michael Jermyn
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Tracy E Frazee
- Department of Diagnostic Radiology, Giesel School of Medicine, Hanover, New Hampshire
| | - Steven P Poplack
- Department of Diagnostic Radiology, Giesel School of Medicine, Hanover, New Hampshire
| | | | - Wendy A Wells
- Department of Pathology, Giesel School of Medicine, Hanover, New Hampshire
| | - Keith D Paulsen
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire. Department of Diagnostic Radiology, Giesel School of Medicine, Hanover, New Hampshire
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14
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Liao D, Tlsty TD. Evolutionary game theory for physical and biological scientists. II. Population dynamics equations can be associated with interpretations. Interface Focus 2014; 4:20140038. [PMID: 25097752 PMCID: PMC4071514 DOI: 10.1098/rsfs.2014.0038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The use of mathematical equations to analyse population dynamics measurements is being increasingly applied to elucidate complex dynamic processes in biological systems, including cancer. Purely 'empirical' equations may provide sufficient accuracy to support predictions and therapy design. Nevertheless, interpretation of fitting equations in terms of physical and biological propositions can provide additional insights that can be used both to refine models that prove inconsistent with data and to understand the scope of applicability of models that validate. The purpose of this tutorial is to assist readers in mathematically associating interpretations with equations and to provide guidance in choosing interpretations and experimental systems to investigate based on currently available biological knowledge, techniques in mathematical and computational analysis and methods for in vitro and in vivo experiments.
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Affiliation(s)
- David Liao
- Department of Pathology , University of California San Francisco , San Francisco, CA 94143 , USA
| | - Thea D Tlsty
- Department of Pathology , University of California San Francisco , San Francisco, CA 94143 , USA
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15
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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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16
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Spliethoff JW, Evers DJ, Jaspers JE, Hendriks BHW, Rottenberg S, Ruers TJM. Monitoring of tumor response to Cisplatin using optical spectroscopy. Transl Oncol 2014; 7:230-9. [PMID: 24726234 PMCID: PMC4101345 DOI: 10.1016/j.tranon.2014.02.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/07/2013] [Accepted: 01/02/2014] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Anatomic imaging alone is often inadequate for tuning systemic treatment for individual tumor response. Optically based techniques could potentially contribute to fast and objective response monitoring in personalized cancer therapy. In the present study, we evaluated the feasibility of dual-modality diffuse reflectance spectroscopy-autofluorescence spectroscopy (DRS-AFS) to monitor the effects of systemic treatment in a mouse model for hereditary breast cancer. METHODS Brca1(-/-); p53(-/-) mammary tumors were grown in 36 mice, half of which were treated with a single dose of cisplatin. Changes in the tumor physiology and morphology were measured for a period of 1 week using dual-modality DRS-AFS. Liver and muscle tissues were also measured to distinguish tumor-specific alterations from systemic changes. Model-based analyses were used to derive different optical parameters like the scattering and absorption coefficients, as well as sources of intrinsic fluorescence. Histopathologic analysis was performed for cross-validation with trends in optically based parameters. RESULTS Treated tumors showed a significant decrease in Mie-scattering slope and Mie-to-total scattering fraction and an increase in both fat volume fraction and tissue oxygenation after 2 days of follow-up. Additionally, significant tumor-specific changes in the fluorescence spectra were seen. These longitudinal trends were consistent with changes observed in the histopathologic analysis, such as vital tumor content and formation of fibrosis. CONCLUSIONS This study demonstrates that dual-modality DRS-AFS provides quantitative functional information that corresponds well with the degree of pathologic response. DRS-AFS, in conjunction with other imaging modalities, could be used to optimize systemic cancer treatment on the basis of early individual tumor response.
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Affiliation(s)
- Jarich W Spliethoff
- Department of Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Daniel J Evers
- Department of Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Janneke E Jaspers
- Division of Molecular Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Benno H W Hendriks
- Department of Minimally Invasive Healthcare, Philips Research, Eindhoven, The Netherlands
| | - Sven Rottenberg
- Division of Molecular Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Theo J M Ruers
- Department of Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands; MIRA Institute, Technical University Twente, Enschede, The Netherlands
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17
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Busch DR, Choe R, Durduran T, Yodh AG. Towards non-invasive characterization of breast cancer and cancer metabolism with diffuse optics. PET Clin 2013; 8. [PMID: 24244206 DOI: 10.1016/j.cpet.2013.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
We review recent developments in diffuse optical imaging and monitoring of breast cancer, i.e. optical mammography. Optical mammography permits non-invasive, safe and frequent measurement of tissue hemodynamics oxygen metabolism and components (lipids, water, etc.), the development of new compound indices indicative of the risk and malignancy, and holds potential for frequent non-invasive longitudinal monitoring of therapy progression.
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18
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19
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Liao D, Estévez-Salmerón L, Tlsty TD. Generalized principles of stochasticity can be used to control dynamic heterogeneity. Phys Biol 2012; 9:065006. [PMID: 23197162 PMCID: PMC3618713 DOI: 10.1088/1478-3975/9/6/065006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
It is increasingly appreciated that phenotypic stochasticity plays fundamental roles in biological systems at the cellular level and that a variety of mechanisms generates phenotypic interconversion over a broad range of time scales. The ensuing dynamic heterogeneity can be used to understand biological and clinical processes involving diverse phenotypes in different cell populations. The same principles can be applied, not only to populations composed of cells, but also to populations composed of molecules, tissues, and multicellular organisms. Stochastic units generating dynamic heterogeneity can be integrated across various length scales. We propose that a graphical tool we have developed, called a metronomogram, will allow us to identify factors that suitably influence the restoration of homeostatic heterogeneity so as to modulate the consequences of dynamic heterogeneity for desired outcomes.
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Affiliation(s)
- David Liao
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Luis Estévez-Salmerón
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Thea D. Tlsty
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
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20
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Abstract
Complex biological systems often display a randomness paralleled in processes studied in fundamental physics. This simple stochasticity emerges owing to the complexity of the system and underlies a fundamental aspect of biology called phenotypic stochasticity. Ongoing stochastic fluctuations in phenotype at the single-unit level can contribute to two emergent population phenotypes. Phenotypic stochasticity not only generates heterogeneity within a cell population, but also allows reversible transitions back and forth between multiple states. This phenotypic interconversion tends to restore a population to a previous composition after that population has been depleted of specific members. We call this tendency homeostatic heterogeneity. These concepts of dynamic heterogeneity can be applied to populations composed of molecules, cells, individuals, etc. Here we discuss the concept that phenotypic stochasticity both underlies the generation of heterogeneity within a cell population and can be used to control population composition, contributing, in particular, to both the ongoing emergence of drug resistance and an opportunity for depleting drug-resistant cells. Using notions of both 'large' and 'small' numbers of biomolecular components, we rationalize our use of Markov processes to model the generation and eradication of drug-resistant cells. Using these insights, we have developed a graphical tool, called a metronomogram, that we propose will allow us to optimize dosing frequencies and total course durations for clinical benefit.
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Affiliation(s)
- David Liao
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Luis Estévez-Salmerón
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Thea D. Tlsty
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
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21
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Ultrasound-guided diffuse optical tomography (DOT) of invasive breast carcinoma: Does tumour total haemoglobin concentration contribute to the prediction of axillary lymph node status? Eur J Radiol 2012; 81:3185-9. [DOI: 10.1016/j.ejrad.2012.01.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 11/04/2011] [Accepted: 01/23/2012] [Indexed: 01/08/2023]
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22
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Mastanduno MA, Jiang S, DiFlorio-Alexander R, Pogue BW, Paulsen KD. Automatic and robust calibration of optical detector arrays for biomedical diffuse optical spectroscopy. BIOMEDICAL OPTICS EXPRESS 2012; 3:2339-52. [PMID: 23082277 PMCID: PMC3470001 DOI: 10.1364/boe.3.002339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 08/18/2012] [Indexed: 05/20/2023]
Abstract
The design and testing of a new, fully automated, calibration approach is described. The process was used to calibrate an image-guided diffuse optical spectroscopy system with 16 photomultiplier tubes (PMTs), but can be extended to any large array of optical detectors and associated imaging geometry. The design goals were accomplished by developing a routine for robust automated calibration of the multi-detector array within 45 minutes. Our process was able to characterize individual detectors to a median norm of the residuals of 0.03 V for amplitude and 4.4 degrees in phase and achieved less than 5% variation between all the detectors at the 95% confidence interval for equivalent measurements. Repeatability of the calibrated data from the imaging system was found to be within 0.05 V for amplitude and 0.2 degrees for phase, and was used to evaluate tissue-simulating phantoms in two separate imaging geometries. Spectroscopic imaging of total hemoglobin concentration was recovered to within 5% of the true value in both cases. Future work will focus on streamlining the technology for use in a clinical setting with expectations of achieving accurate quantification of suspicious lesions in the breast.
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Affiliation(s)
| | - Shudong Jiang
- Thayer School of Engineering, Dartmouth College, Hanover, NH
03755, USA
| | | | - Brian W. Pogue
- Thayer School of Engineering, Dartmouth College, Hanover, NH
03755, USA
| | - Keith D. Paulsen
- Thayer School of Engineering, Dartmouth College, Hanover, NH
03755, USA
- Department of Diagnostic Radiology, Geisel School of Medicine,
Lebanon, NH 03756, USA
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23
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Hassan AM, El-Shenawee M. Review of electromagnetic techniques for breast cancer detection. IEEE Rev Biomed Eng 2012; 4:103-18. [PMID: 22273794 DOI: 10.1109/rbme.2011.2169780] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Breast cancer is anticipated to be responsible for almost 40,000 deaths in the USA in 2011. The current clinical detection techniques suffer from limitations which motivated researchers to investigate alternative modalities for the early detection of breast cancer. This paper focuses on reviewing the main electromagnetic techniques for breast cancer detection. More specifically, this work reviews the cutting edge research in microwave imaging, electrical impedance tomography, diffuse optical tomography, microwave radiometry, biomagnetic detection, biopotential detection, and magnetic resonance imaging (MRI). The goal of this paper is to provide biomedical researchers with an in-depth review that includes all main electromagnetic techniques in the literature and the latest progress in each of these techniques.
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Affiliation(s)
- Ahmed M Hassan
- Department of Electrical Engineering, University of Arkansas, Fayetteville, AR 72701, USA.
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24
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Pearlman PC, Adams A, Elias SG, Mali WPTM, Viergever MA, Pluim JPW. Mono- and multimodal registration of optical breast images. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:080901-1. [PMID: 23224161 DOI: 10.1117/1.jbo.17.8.080901] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Optical breast imaging offers the possibility of noninvasive, low cost, and high sensitivity imaging of breast cancers. Poor spatial resolution and a lack of anatomical landmarks in optical images of the breast make interpretation difficult and motivate registration and fusion of these data with subsequent optical images and other breast imaging modalities. Methods used for registration and fusion of optical breast images are reviewed. Imaging concerns relevant to the registration problem are first highlighted, followed by a focus on both monomodal and multimodal registration of optical breast imaging. Where relevant, methods pertaining to other imaging modalities or imaged anatomies are presented. The multimodal registration discussion concerns digital x-ray mammography, ultrasound, magnetic resonance imaging, and positron emission tomography.
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Affiliation(s)
- Paul C Pearlman
- University Medical Center Utrecht, Image Sciences Institute, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands.
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25
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Evers D, Hendriks B, Lucassen G, Ruers T. Optical spectroscopy: current advances and future applications in cancer diagnostics and therapy. Future Oncol 2012; 8:307-20. [PMID: 22409466 DOI: 10.2217/fon.12.15] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Optical spectroscopy (OS) is a tissue-sensing technique that could enhance cancer diagnosis and treatment in the near future. With OS, tissue is illuminated with a selected light spectrum. Different tissue types can be distinguished from each other based on specific changes in the reflected light spectrum that are a result of differences on a molecular level between compared tissues. Therefore, OS has the potential to become an important optical tool for cancer diagnosis and treatment monitoring. In recent years, significant progress has been made in the discriminating abilities of OS techniques between normal and cancer tissues of multiple human tissue types. This article provides an overview of the advances made with diffuse reflectance, fluorescence and Raman spectroscopy techniques in the field of clinical oncology, and focuses on the different clinical applications that OS could enhance.
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Affiliation(s)
- Dj Evers
- Department of Surgery, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
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26
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Choe R, Durduran T. Diffuse Optical Monitoring of the Neoadjuvant Breast Cancer Therapy. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS : A PUBLICATION OF THE IEEE LASERS AND ELECTRO-OPTICS SOCIETY 2012; 18:1367-1386. [PMID: 23243386 PMCID: PMC3521564 DOI: 10.1109/jstqe.2011.2177963] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Recent advances in the use of diffuse optical techniques for monitoring the hemodynamic, metabolic and physiological signatures of the neoadjuvant breast cancer therapy effectiveness is critically reviewed. An extensive discussion of the state-of-theart diffuse optical mammography is presented alongside a discussion of the current approaches to breast cancer therapies. Overall, the diffuse optics field is growing rapidly with a great deal of promise to fill an important niche in the current approaches to monitor, predict and personalize neoadjuvant breast cancer therapies.
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Affiliation(s)
- Regine Choe
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA;
| | - Turgut Durduran
- ICFO- Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860, Barcelona, Spain;
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27
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O’Sullivan TD, Cerussi AE, Cuccia DJ, Tromberg BJ. Diffuse optical imaging using spatially and temporally modulated light. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:071311. [PMID: 22894472 PMCID: PMC3607494 DOI: 10.1117/1.jbo.17.7.071311] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 06/28/2012] [Indexed: 05/18/2023]
Abstract
The authors describe the development of diffuse optical imaging (DOI) technologies, specifically the use of spatial and temporal modulation to control near infrared light propagation in thick tissues. We present theory and methods of DOI focusing on model-based techniques for quantitative, in vivo measurements of endogenous tissue absorption and scattering properties. We specifically emphasize the common conceptual framework of the scalar photon density wave for both temporal and spatial frequency-domain approaches. After presenting the history, theoretical foundation, and instrumentation related to these methods, we provide a brief review of clinical and preclinical applications from our research as well as our outlook on the future of DOI technology.
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Affiliation(s)
- Thomas D. O’Sullivan
- University of California, Irvine, Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, Irvine, California
| | - Albert E. Cerussi
- University of California, Irvine, Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, Irvine, California
| | | | - Bruce J. Tromberg
- University of California, Irvine, Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, Irvine, California
- Address all correspondence to: Bruce J. Tromberg, University of California, Irvine, Beckman Laser Institute and Medical Clinic, 1002 Health Sciences Road, Irvine, California 92612. Tel: +949 824 8705; Fax: 949 824 8413; E-mail:
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28
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Enfield LC, Cantanhede G, Westbroek D, Douek M, Purushotham AD, Hebden JC, Gibson AP. Monitoring the response to primary medical therapy for breast cancer using three- dimensional time-resolved optical mammography. Technol Cancer Res Treat 2012; 10:533-47. [PMID: 22066594 DOI: 10.1177/153303461101000604] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Primary medical therapy is used to reduce tumour size prior to surgery in women with locally advanced breast cancer. Optical tomography is a functional imaging technique using near- infrared light to produce three-dimensional breast images of tissue oxygen saturation and haemoglobin concentration. Its advantages include the ability to display quantitative physiological information, and to allow repeated scans without the hazards associated with exposure to ionising radiation. There is a need for a non-invasive functional imaging tool to evaluate response to treatment, so that non-responders can be given the opportunity to change their treatment regimen. Here, we evaluate the use of optical tomography for this purpose. Four women with newly diagnosed breast cancer who were about to undergo primary medical therapy gave informed and voluntary consent to take part in the study. Changes in physiological and optical properties within the tumour were evaluated during the course of neoadjuvant chemotherapy. Optical imaging was performed prior to treatment, after the first cycle of chemotherapy, halfway through, and on completion of chemotherapy. Images of light absorption and scatter at two wavelengths were produced, from which images of total haemoglobin concentration and oxygen saturation were derived. All patients that showed a good or complete response to treatment on MRI showed a corresponding recovery in the haemoglobin concentration images. Changes in mean tumour total haemoglobin concentration could be seen four weeks into treatment. The tumour oxygen saturation was low compared to background in three out of four patients, and also showed a return to baseline over treatment. Optical imaging of the breast is feasible during primary medical therapy and can be used to assess response to treatment over six months.
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Affiliation(s)
- L C Enfield
- Department of Medical Physics and Bioengineering, University College London, Malet Place, London, UK.
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29
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Ueda Y, Yoshimoto K, Ohmae E, Suzuki T, Yamanaka T, Yamashita D, Ogura H, Teruya C, Nasu H, Ima E, Sakahara H, Oda M, Yamashita Y. Time-resolved optical mammography and its preliminary clinical results. Technol Cancer Res Treat 2012; 10:393-401. [PMID: 21895025 DOI: 10.7785/tcrt.2012.500217] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have been developing an optical mammography prototype consisting of a multi-channel time-resolved spectroscopy system for breast cancer screening. The system utilizes the time-correlated single photon counting method, and the detector modules and the signal processing circuits were custom-made to obtain a high signal to noise ratio and high temperature stability with a high temporal resolution. Pulsed light generated by a Ti: Sapphire laser was irradiated to the breast, and the transmitted light was collected by optical fibers placed on the surface of a hemispherical gantry filled with an optical matching fluid. To reconstruct a 3D image of the breast, we employed a method using a time-resolved photon path distribution based on the assumption that scattering and absorption are independent of each other. We verified the possibility of human breast imaging by using a three-dimensional phantom model, which provides a simulation of human breast cancer, in the gantry. The clinical study was also started in January 2007. In a comparative study with conventional modalities, the breast cancers were detected as regions of optically higher absorption. Moreover, the results suggest that optical mammography is useful in monitoring the effects of chemotherapy.
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Affiliation(s)
- Y Ueda
- Central Research Laboratory, Hamamatsu Photonics K.K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu City, Shizuoka Pref., 434-8601, Japan.
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Krucker T, Sandanaraj BS. Optical imaging for the new grammar of drug discovery. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2011; 369:4651-4665. [PMID: 22006912 DOI: 10.1098/rsta.2011.0300] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Optical technologies used in biomedical research have undergone tremendous development in the last decade and enabled important insight into biochemical, cellular and physiological phenomena at the microscopic and macroscopic level. Historically in drug discovery, to increase throughput in screening, or increase efficiency through automation of image acquisition and analysis in pathology, efforts in imaging were focused on the reengineering of established microscopy solutions. However, with the emergence of the new grammar for drug discovery, other requirements and expectations have created unique opportunities for optical imaging. The new grammar of drug discovery provides rules for translating the wealth of genomic and proteomic information into targeted medicines with a focus on complex interactions of proteins. This paradigm shift requires highly specific and quantitative imaging at the molecular level with tools that can be used in cellular assays, animals and finally translated into patients. The development of fluorescent targeted and activatable 'smart' probes, fluorescent proteins and new reporter gene systems as functional and dynamic markers of molecular events in vitro and in vivo is therefore playing a pivotal role. An enabling optical imaging platform will combine optical hardware refinement with a strong emphasis on creating and validating highly specific chemical and biological tools.
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Affiliation(s)
- Thomas Krucker
- Global Imaging Group, Novartis Institutes for BioMedical Research, Cambridge, MA 02139, USA.
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Cerussi AE, Tanamai VW, Hsiang D, Butler J, Mehta RS, Tromberg BJ. Diffuse optical spectroscopic imaging correlates with final pathological response in breast cancer neoadjuvant chemotherapy. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2011; 369:4512-30. [PMID: 22006904 PMCID: PMC3263790 DOI: 10.1098/rsta.2011.0279] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Diffuse optical spectroscopic imaging (DOSI) non-invasively and quantitatively measures tissue haemoglobin, water and lipid. Pilot studies in small groups of patients demonstrate that DOSI may be useful for longitudinal monitoring and predicting breast cancer neoadjuvant chemotherapy pathological response. This study evaluates the performance of a bedside DOSI platform in 34 breast cancer patients followed for several months. DOSI optical endpoints obtained at multiple timepoints are compared with final pathological response. Thirty-six stage II/III breast cancers (34 patients) were measured in vivo with DOSI prior to, in the middle of and after the completion of pre-surgical neoadjuvant chemotherapy. Cancer therapies ranged from standard anthracyclines to targeted therapies. Changes in DOSI-measured parameters at each timepoint were compared against final surgical pathology. Absolute changes in the tumour-to-normal (T/N) ratio of tissue deoxyhaemoglobin concentration (ctHHb) and relative changes in the T/N ratio of a tissue optical index (TOI) were most sensitive and correlate to pathological response. Changes in ctHHb and TOI were significantly different between tumours that achieved pathological complete response (pCR) versus non-pCR. By therapy midpoint, mean TOI-T/N changes were 47±8 versus 20±5 per cent for pCR versus non-pCR subjects, respectively (Z=0.011). Changes in ctHHb and TOI scaled significantly with the degree of pathological response (non-, partial and complete). DOSI measurements of TOI separated pCR from non-pCR by therapy midpoint regardless of drug or dosing strategy. This approach is well suited to monitoring breast tumour response and may provide feedback for optimizing therapeutic outcomes and minimizing side-effects.
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Affiliation(s)
- Albert E. Cerussi
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, 1002 Health Sciences Road, East, Irvine, CA 92612, USA
- Authors for correspondence (; )
| | - Vaya W. Tanamai
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, 1002 Health Sciences Road, East, Irvine, CA 92612, USA
| | - David Hsiang
- Chao Family Comprehensive Cancer Center, University of California, Irvine, 101 The City Drive Orange, CA 92868, USA
| | - John Butler
- Chao Family Comprehensive Cancer Center, University of California, Irvine, 101 The City Drive Orange, CA 92868, USA
| | - Rita S. Mehta
- Chao Family Comprehensive Cancer Center, University of California, Irvine, 101 The City Drive Orange, CA 92868, USA
| | - Bruce J. Tromberg
- Laser Microbeam and Medical Program (LAMMP), Beckman Laser Institute and Medical Clinic, University of California, Irvine, 1002 Health Sciences Road, East, Irvine, CA 92612, USA
- Authors for correspondence (; )
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Santoro Y, Leproux A, Cerussi A, Tromberg B, Gratton E. Breast cancer spatial heterogeneity in near-infrared spectra and the prediction of neoadjuvant chemotherapy response. JOURNAL OF BIOMEDICAL OPTICS 2011; 16:097007. [PMID: 21950942 PMCID: PMC3203125 DOI: 10.1117/1.3638135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 07/26/2011] [Accepted: 08/22/2011] [Indexed: 05/18/2023]
Abstract
We describe an algorithm to calculate an index that characterizes spatial differences in broadband near-infrared [(NIR), 650-1000 nm] absorption spectra of tumor-containing breast tissue. Patient-specific tumor spatial heterogeneities are visualized through a heterogeneity spectrum function (HS). HS is a biomarker that can be attributed to different molecular distributions within the tumor. To classify lesion heterogeneities, we built a heterogeneity index (HI) derived from the HS by weighing the HS in specific NIR absorption bands. It is shown that neoadjuvant chemotherapy (NAC) response is potentially related to the tumor heterogeneity. Therefore, we correlate the heterogeneity index obtained prior to treatment with the final response to NAC. From a pilot study of 15 cancer patients treated with NAC, pathological complete responders (pCR) were separated from non-pCR according to their HI (-44 ± 12 and 43 ± 17, p = 3 × 10(-8), respectively). We conclude that the HS function is a biomarker that can be used to visualize spatial heterogeneities in lesions, and the baseline HI prior to therapy correlates with chemotherapy pathological response.
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Affiliation(s)
- Ylenia Santoro
- University of California, Irvine, Biomedical Engineering Department, Irvine, California 92697, USA
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Optical imaging of breast cancer oxyhemoglobin flare correlates with neoadjuvant chemotherapy response one day after starting treatment. Proc Natl Acad Sci U S A 2011; 108:14626-31. [PMID: 21852577 DOI: 10.1073/pnas.1013103108] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
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.
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Gioux S, Mazhar A, Lee BT, Lin SJ, Tobias AM, Cuccia DJ, Stockdale A, Oketokoun R, Ashitate Y, Kelly E, Weinmann M, Durr NJ, Moffitt LA, Durkin AJ, Tromberg BJ, Frangioni JV. First-in-human pilot study of a spatial frequency domain oxygenation imaging system. JOURNAL OF BIOMEDICAL OPTICS 2011; 16:086015. [PMID: 21895327 PMCID: PMC3182084 DOI: 10.1117/1.3614566] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 06/30/2011] [Accepted: 07/01/2011] [Indexed: 05/18/2023]
Abstract
Oxygenation measurements are widely used in patient care. However, most clinically available instruments currently consist of contact probes that only provide global monitoring of the patient (e.g., pulse oximetry probes) or local monitoring of small areas (e.g., spectroscopy-based probes). Visualization of oxygenation over large areas of tissue, without a priori knowledge of the location of defects, has the potential to improve patient management in many surgical and critical care applications. In this study, we present a clinically compatible multispectral spatial frequency domain imaging (SFDI) system optimized for surgical oxygenation imaging. This system was used to image tissue oxygenation over a large area (16×12 cm) and was validated during preclinical studies by comparing results obtained with an FDA-approved clinical oxygenation probe. Skin flap, bowel, and liver vascular occlusion experiments were performed on Yorkshire pigs and demonstrated that over the course of the experiment, relative changes in oxygen saturation measured using SFDI had an accuracy within 10% of those made using the FDA-approved device. Finally, the new SFDI system was translated to the clinic in a first-in-human pilot study that imaged skin flap oxygenation during reconstructive breast surgery. Overall, this study lays the foundation for clinical translation of endogenous contrast imaging using SFDI.
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Affiliation(s)
- Sylvain Gioux
- Beth Israel Deaconess Medical Center, Division of Hematology∕Oncology, Department of Medicine, Boston, Massachusetts 02215, USA
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Solomon M, Liu Y, Berezin MY, Achilefu S. Optical imaging in cancer research: basic principles, tumor detection, and therapeutic monitoring. Med Princ Pract 2011; 20:397-415. [PMID: 21757928 PMCID: PMC7388590 DOI: 10.1159/000327655] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Accepted: 03/16/2011] [Indexed: 01/19/2023] Open
Abstract
Accurate and rapid detection of diseases is of great importance for assessing the molecular basis of pathogenesis, preventing the onset of complications, and implementing a tailored therapeutic regimen. The ability of optical imaging to transcend wide spatial imaging scales ranging from cells to organ systems has rejuvenated interest in using this technology for medical imaging. Moreover, optical imaging has at its disposal diverse contrast mechanisms for distinguishing normal from pathologic processes and tissues. To accommodate these signaling strategies, an array of imaging techniques has been developed. Importantly, light absorption, and emission methods, as well as hybrid optical imaging approaches are amenable to both small animal and human studies. Typically, complex methods are needed to extract quantitative data from deep tissues. This review focuses on the development of optical imaging platforms, image processing techniques, and molecular probes, as well as their applications in cancer diagnosis, staging, and monitoring therapeutic response.
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Affiliation(s)
- Metasebya Solomon
- Department of Radiology, Washington University School of Medicine, St. Louis, Mo., USA
- Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, Mo., USA
| | - Yang Liu
- Department of Radiology, Washington University School of Medicine, St. Louis, Mo., USA
- Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, Mo., USA
| | - Mikhail Y. Berezin
- Department of Radiology, Washington University School of Medicine, St. Louis, Mo., USA
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, St. Louis, Mo., USA
- Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, Mo., USA
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, Mo., USA
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Li Z, Krishnaswamy V, Jiang S, Davis SC, Srinivasan S, Paulsen KD, Pogue BW. Rapid magnetic resonance-guided near-infrared mapping to image pulsatile hemoglobin in the breast. OPTICS LETTERS 2010; 35:3964-6. [PMID: 21124580 PMCID: PMC3846271 DOI: 10.1364/ol.35.003964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A near-IR (NIR) tomography system with spectral-encoded sources was built to quantify the temporal contrast in human breast tissue using guidance from magnetic resonance imaging. The systems were integrated with a custom breast coil interface to provide simultaneous acquisition. The NIR signal was synchronized to simultaneous finger pulse oximeter plethysmogram, which offered a frequency reference. A 0.1 s temporal delay of the absorption pulse within adipose tissue relative to fibroglandular tissue was found, in an initial human study, showing the potential for novel contrast imaging of fast flow signals in deep tissue.
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Affiliation(s)
- Zhiqiu Li
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
| | | | - Shudong Jiang
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
| | - Scott C. Davis
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
| | - Subhadra Srinivasan
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
| | - Keith D. Paulsen
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
| | - Brian W. Pogue
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
- Corresponding author:
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