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Abstract
Malignant tumors rank as a leading cause of death worldwide. Accurate diagnosis and advanced treatment options are crucial to win battle against tumors. In recent years, Cherenkov luminescence (CL) has shown its technical advantages and clinical transformation potential in many important fields, particularly in tumor diagnosis and treatment, such as tumor detection in vivo, surgical navigation, radiotherapy, photodynamic therapy, and the evaluation of therapeutic effect. In this review, we summarize the advances in CL for tumor diagnosis and treatment. We first describe the physical principles of CL and discuss the imaging techniques used in tumor diagnosis, including CL imaging, CL endoscope, and CL tomography. Then we present a broad overview of the current status of surgical resection, radiotherapy, photodynamic therapy, and tumor microenvironment monitoring using CL. Finally, we shed light on the challenges and possible solutions for tumor diagnosis and therapy using CL.
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Cai M, Zhang Z, Shi X, Yang J, Hu Z, Tian J. Non-Negative Iterative Convex Refinement Approach for Accurate and Robust Reconstruction in Cerenkov Luminescence Tomography. IEEE TRANSACTIONS ON MEDICAL IMAGING 2020; 39:3207-3217. [PMID: 32324543 DOI: 10.1109/tmi.2020.2987640] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cerenkov luminescence tomography (CLT) is a promising imaging tool for obtaining three-dimensional (3D) non-invasive visualization of the in vivo distribution of radiopharmaceuticals. However, the reconstruction performance remains unsatisfactory for biomedical applications because the inverse problem of CLT is severely ill-conditioned and intractable. In this study, therefore, a novel non-negative iterative convex refinement (NNICR) approach was utilized to improve the CLT reconstruction accuracy, robustness as well as the shape recovery capability. The spike and slab prior information was employed to capture the sparsity of Cerenkov source, which could be formalized as a non-convex optimization problem. The NNICR approach solved this non-convex problem by refining the solutions of the convex sub-problems. To evaluate the performance of the NNICR approach, numerical simulations and in vivo tumor-bearing mice models experiments were conducted. Conjugated gradient based Tikhonov regularization approach (CG-Tikhonov), fast iterative shrinkage-thresholding algorithm based Lasso approach (Fista-Lasso) and Elastic-Net regularization approach were used for the comparison of the reconstruction performance. The results of these experiments demonstrated that the NNICR approach obtained superior reconstruction performance in terms of location accuracy, shape recovery capability, robustness and in vivo practicability. It was believed that this study would facilitate the preclinical and clinical applications of CLT in the future.
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Zhang Z, Qu Y, Cao Y, Shi X, Guo H, Zhang X, Zheng S, Liu H, Hu Z, Tian J. A novel in vivo Cerenkov luminescence image-guided surgery on primary and metastatic colorectal cancer. JOURNAL OF BIOPHOTONICS 2020; 13:e201960152. [PMID: 31800171 DOI: 10.1002/jbio.201960152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/01/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Intraoperative Cerenkov luminescence imaging (CLI) can effectively improve the performance of tumor surgery. Nevertheless, the existing approaches are still unsatisfying to the clinical demands of open surgery. This study develops a novel intraoperative in vivo CLI approach to investigate the potential and value of Cerenkov luminescence (CL) image-guided surgery. A system characterized with high sensitivity (19.61 kBq mL-1 18 F-FDG) and desirable spatial resolution (88.34 μm) is developed. CL image-guided surgery is performed on colorectal cancer (CRC) models of mice and swine. Tumor surgery is guided by the static CL images, and the resection quality is evaluated quantitatively and contrasted with other imaging modalities exemplified by bioluminescence imaging (BLI). The in vivo results demonstrated the effectiveness of the proposed intraoperative CLI approach for removing primary and metastatic CRC. Safety of performing in vivo CL image-guided surgery is verified as well through radiation measurements of related staffs. Overall, the developed intraoperative in vivo CLI approach can efficiently improve the cancer treatment.
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Affiliation(s)
- Zeyu Zhang
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Yawei Qu
- Department of Gastroenterology, the Third Medical Centre, Chinese PLA General Hospital, Beijing, China
- Department of Control Science and Engineering, Harbin Institute of Technology, Harbin, China
| | - Yu Cao
- Department of Anorectal, the Third medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xiaojing Shi
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Hongbo Guo
- School of Information Sciences and Technology, Northwest University, Xi'an, China
| | - Xiaojun Zhang
- Department of Nuclear Medicine, Chinese PLA General Hospital, Beijing, China
| | - Sheng Zheng
- Department of Gastroenterology, the Third Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Haifeng Liu
- Department of Gastroenterology, the Third Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Zhenhua Hu
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jie Tian
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Medicine, Beihang University, Beijing, China
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Zhang Z, Cai M, Gao Y, Shi X, Zhang X, Hu Z, Tian J. A novel Cerenkov luminescence tomography approach using multilayer fully connected neural network. Phys Med Biol 2019; 64:245010. [PMID: 31770734 DOI: 10.1088/1361-6560/ab5bb4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cerenkov luminescence tomography (CLT) has been proved as an effective tool for various biomedical applications. Because of the severe scattering of Cerenkov luminescence, the performance of CLT remains unsatisfied. This paper proposed a novel CLT reconstruction approach based on a multilayer fully connected neural network (MFCNN). Monte Carlo simulation data was employed to train the MFCNN, and the complex relationship between the surface signals and the true sources was effectively learned by the network. Both simulation and in vivo experiments were performed to validate the performance of MFCNN CLT, and it was further compared with the typical radiative transfer equation (RTE) based method. The experimental data showed the superiority of MFCNN CLT in terms of accuracy and stability. This promising approach for CLT is expected to improve the performance of optical tomography, and to promote the exploration of machine learning in biomedical applications.
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Affiliation(s)
- Zeyu Zhang
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an 710126, People's Republic of China. CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, People's Republic of China. These authors contributed equally to this study
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Geng C, Ai Y, Tang X, Shu D, Gong C, Guan F. A Monte Carlo study of pinhole collimated Cerenkov luminescence imaging integrated with radionuclide treatment. AUSTRALASIAN PHYSICAL & ENGINEERING SCIENCES IN MEDICINE 2019; 42:481-487. [PMID: 30830649 DOI: 10.1007/s13246-019-00744-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 02/26/2019] [Indexed: 12/20/2022]
Abstract
Cerenkov luminescence imaging (CLI) is an emerging optical imaging technique, which has been widely investigated for biological imaging. In this study, we proposed to integrate the CLI technique with the radionuclide treatment as a "see-and-treat" approach, and evaluated the performance of the pinhole collimator-based CLI technique. The detection of Cerenkov luminescence during radionuclide therapy was simulated using the Monte Carlo technique for breast cancer treatment as an example. Our results show that with the pinhole collimator-based configuration, the location, size and shape of the tumors can be clearly visualized on the Cerenkov luminescence images of the breast phantom. In addition, the CLI of multiple tumors can reflect the relative density of radioactivity among tumors, indicating that the intensity of Cerenkov luminescence is independent of the size and shape of a tumor. The current study has demonstrated the high-quality performance of the pinhole collimator-based CLI in breast tumor imaging for the "see-and-treat" multi-modality treatment.
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Affiliation(s)
- Changran Geng
- Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Nanjing, 210016, China
| | - Yao Ai
- Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Nanjing, 210016, China
| | - Xiaobin Tang
- Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Nanjing, 210016, China.
| | - Diyun Shu
- Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Nanjing, 210016, China
| | - Chunhui Gong
- Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Nanjing, 210016, China
| | - Fada Guan
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
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Gao Y, Ma X, Kang F, Yang W, Liu Y, Wang Z, Ma W, Wang Z, Li G, Cao X, Wang J. Enhanced Cerenkov luminescence tomography analysis based on Y 2O 3:Eu 3+ rare earth oxide nanoparticles. BIOMEDICAL OPTICS EXPRESS 2018; 9:6091-6102. [PMID: 31065415 PMCID: PMC6491000 DOI: 10.1364/boe.9.006091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/21/2018] [Accepted: 09/26/2018] [Indexed: 06/09/2023]
Abstract
Cerenkov luminescence imaging offers a new diagnostic alternative to radiation imaging, but lacks intensity and penetration. In this study, a Cerenkov luminescence signal and its image quality were enhanced using rare earth oxide nanoparticles as a basis for Cerenkov luminescence excited fluorescence imaging and Cerenkov luminescence excited fluorescence tomography. The results also provided 3D-imaging and quantitative information. The approach was evaluated using phantom and mice models and 3D reconstruction and quantitative studies were performed in vitro, showing improved optical signal intensity, similarity, accuracy, signal-to-noise ratio, and spatial distribution information. The method offers benefits for both optical imaging research and radiopharmaceutical development.
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Affiliation(s)
- Yongheng Gao
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
- These authors contributed equally to this work
| | - Xiaowei Ma
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
- These authors contributed equally to this work
| | - Fei Kang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
| | - Weidong Yang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
| | - Yi Liu
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
| | - Zhengjie Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
| | - Wenhui Ma
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
| | - Zhe Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
| | - Guoquan Li
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
| | - Xu Cao
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xiâan, Shaanxi 710071, China
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xiâan 710032, China
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Zhang X, Zhu S, Li Y, Zhan Y, Chen X, Kang F, Wang J, Cao X. Gamma rays excited radioluminescence tomographic imaging. Biomed Eng Online 2018; 17:45. [PMID: 29690883 PMCID: PMC5916826 DOI: 10.1186/s12938-018-0480-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 04/18/2018] [Indexed: 11/26/2022] Open
Abstract
Background Radionuclide-excited luminescence imaging is an optical radionuclide imaging strategy to reveal the distributions of radioluminescent nanophosphors (RLNPs) inside small animals, which uses radioluminescence emitted from RLNPs when excited by high energy rays such as gamma rays generated during the decay of radiotracers used in clinical nuclear medicine imaging. Currently, there is no report of tomographic imaging based on radioluminescence. Methods In this paper, we proposed a gamma rays excited radioluminescence tomography (GRLT) to reveal three-dimensional distributions of RLNPs inside a small animal using radioluminescence through image reconstruction from surface measurements of radioluminescent photons using an inverse algorithm. The diffusion equation was employed to model propagations of radioluminescent photons in biological tissues with highly scattering and low absorption characteristics. Results Phantom and artificial source-implanted mouse model experiments were employed to test the feasibility of GRLT, and the results demonstrated that the ability of GRLT to reveal the distribution of RLNPs such as Gd2O2S:Tb using the radioluminescent signals when excited by gamma rays produced from 99mTc. Conclusions With the emerging of targeted RLNPs, GRLT can provide new possibilities for in vivo and noninvasive examination of biological processes at cellular levels. Especially, combining with Cerenkov luminescence imaging, GRLT can achieve dual molecular information of RLNPs and nuclides using single optical imaging technology.
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Affiliation(s)
- Xuanxuan Zhang
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China
| | - Shouping Zhu
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China
| | - Yang Li
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China
| | - Yonghua Zhan
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China
| | - Xueli Chen
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China
| | - Fei Kang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Xu Cao
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
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Practical Guidelines for Cerenkov Luminescence Imaging with Clinically Relevant Isotopes. Methods Mol Biol 2018; 1790:197-208. [PMID: 29858793 DOI: 10.1007/978-1-4939-7860-1_15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cerenkov luminescence imaging (CLI) is a relatively new imaging modality that utilizes conventional optical imaging instrumentation to detect Cerenkov radiation derived from standard and often clinically approved radiotracers. Its research versatility, low cost, and ease of use have increased its popularity within the molecular imaging community and at institutions that are interested in conducting radiotracer-based molecular imaging research, but that lack the necessary resources and infrastructure. Here, we provide a description of the materials and procedures necessary to conduct a Cerenkov luminescence imaging experiment using a variety of imaging instrumentation, radionuclides, and animal models.
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Quantitative Measurement of the Thyroid Uptake Function of Mouse by Cerenkov Luminescence Imaging. Sci Rep 2017; 7:5717. [PMID: 28720762 PMCID: PMC5515839 DOI: 10.1038/s41598-017-05516-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 05/30/2017] [Indexed: 12/18/2022] Open
Abstract
Cerenkov luminescence imaging (CLI) has been an evolutional and alternative approach of nuclear imaging in basic research. This study aimed to measure the 131I thyroid uptake of mouse using CLI for assessment of thyroid function. Quantification of 131I thyroid uptake of mice in euthyroid, hypothyroid and hyperthyroid status was performed by CLI and γ-scintigraphy at 24 hours after injection of 131I. The 131I thyroid uptake was calculated using the equation: (thyroid counts − background counts)/(counts of injected dose of 131I) × 100%. Serum T4 concentration was determined to evaluate the thyroid function. The radioactivity of 131I was linearly correlated with the CL signals in both in vitro and in vivo measurements. CLI showed a significant decrease and increase of 131I thyroid uptake in the mice in hypo- and hyperfunctioning status, respectively, and highly correlated with that measured by γ-scintigraphy. However, the percent thyroid uptake measured by CLI were one-fifth of those measured by γ-scintigraphy due to insufficient tissue penetration of CL. These results indicate that CLI, in addition to nuclear imaging, is able to image and evaluate the 131I thyroid uptake function in mice in preclinical and research settings.
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Forward-backward pursuit algorithm for Cerenkov luminescence tomography. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2016:2889-2892. [PMID: 28268918 DOI: 10.1109/embc.2016.7591333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cerenkov luminescence tomography (CLT) is a powerful imaging technique that allows dynamically and three-dimensionally resolving the metabolic process of radiopharmaceuticals. It uses optical method to detect radiopharmaceuticals with low cost and high sensitivity. However, because of the strong absorption and scatter of biological tissues, the reconstruction of CLT is always converted to an ill-posed linear system which is hard to solve. An accurate and fast reconstruct algorithm becomes a current issue. The traditional reconstruction algorithm based on l2 norm regularization is too smooth and with low accuracy. Some novel sparse reconstruction algorithm has satisfying accuracy and convergence rate, but lose its accuracy for multi-source situation. In this work, a novel CLT method based on forward-backward greedy algorithm is proposed to solve the ill-posed problem. Digital simulations and in vivo experiment were conducted to test the algorithm. The reconstruct results were compared with traditional orthogonal matching pursuit (OMP) algorithm and Tikhonov algorithm. Both the Digital simulations and in vivo experiment show that this approach can reconstruct the distribution of radiopharmaceuticals effectively and accurately.
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Guo H, He X, Liu M, Zhang Z, Hu Z, Tian J. Weight Multispectral Reconstruction Strategy for Enhanced Reconstruction Accuracy and Stability With Cerenkov Luminescence Tomography. IEEE TRANSACTIONS ON MEDICAL IMAGING 2017; 36:1337-1346. [PMID: 28182554 DOI: 10.1109/tmi.2017.2658661] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Cerenkov luminescence tomography (CLT) provides a novel technique for 3-D noninvasive detection of radiopharmaceuticals in living subjects. However, because of the severe scattering of Cerenkov light, the reconstruction accuracy and stability of CLT is still unsatisfied. In this paper, a modified weight multispectral CLT (wmCLT) reconstruction strategy was developed which split the Cerenkov radiation spectrum into several sub-spectral bands and weighted the sub-spectral results to obtain the final result. To better evaluate the property of the wmCLT reconstruction strategy in terms of accuracy, stability and practicability, several numerical simulation experiments and in vivo experiments were conducted and the results obtained were compared with the traditional multispectral CLT (mCLT) and hybrid-spectral CLT (hCLT) reconstruction strategies. The numerical simulation results indicated that wmCLT strategy significantly improved the accuracy of Cerenkov source localization and intensity quantitation and exhibited good stability in suppressing noise in numerical simulation experiments. And the comparison of the results achieved from different in vivo experiments further indicated significant improvement of the wmCLT strategy in terms of the shape recovery of the bladder and the spatial resolution of imaging xenograft tumors. Overall the strategy reported here will facilitate the development of nuclear and optical molecular tomography in theoretical study.
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Wood V, Ackerman NL. Cherenkov light production from the α-emitting decay chains of 223Ra, 212Pb, and 149Tb for Cherenkov Luminescence Imaging. Appl Radiat Isot 2016; 118:354-360. [PMID: 27771446 DOI: 10.1016/j.apradiso.2016.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 09/24/2016] [Accepted: 10/11/2016] [Indexed: 01/12/2023]
Abstract
Cherenkov Luminescence Imaging (CLI) is a new method to image radioactive therapeutic and diagnostic agents, primarily in preclinical studies. This study used Geant4 and Python to generate the predicted Cherenkov light production as a function of time for a set of isotopic chains of interest for targeted alpha therapy: 223Ra, 212Pb, and 149Tb. All are shown to produce substantial Cherenkov light, though time delays between initial decays and the production of Cherenkov light requires caution in interpreting CLI.
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Affiliation(s)
- V Wood
- Department of Physics and Astronomy, Agnes Scott College, 141 E College Ave, Decatur, GA, 30030 United States
| | - N L Ackerman
- Department of Physics and Astronomy, Agnes Scott College, 141 E College Ave, Decatur, GA, 30030 United States.
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Hu Z, Zhao M, Qu Y, Zhang X, Zhang M, Liu M, Guo H, Zhang Z, Wang J, Yang W, Tian J. In Vivo 3-Dimensional Radiopharmaceutical-Excited Fluorescence Tomography. J Nucl Med 2016; 58:169-174. [DOI: 10.2967/jnumed.116.180596] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 08/03/2016] [Indexed: 12/16/2022] Open
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Removing Noises Induced by Gamma Radiation in Cerenkov Luminescence Imaging Using a Temporal Median Filter. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7948432. [PMID: 27648450 PMCID: PMC5015013 DOI: 10.1155/2016/7948432] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/19/2016] [Accepted: 08/03/2016] [Indexed: 11/18/2022]
Abstract
Cerenkov luminescence imaging (CLI) can provide information of medical radionuclides used in nuclear imaging based on Cerenkov radiation, which makes it possible for optical means to image clinical radionuclide labeled probes. However, the exceptionally weak Cerenkov luminescence (CL) from Cerenkov radiation is susceptible to lots of impulse noises introduced by high energy gamma rays generating from the decays of radionuclides. In this work, a temporal median filter is proposed to remove this kind of impulse noises. Unlike traditional CLI collecting a single CL image with long exposure time and smoothing it using median filter, the proposed method captures a temporal sequence of CL images with shorter exposure time and employs a temporal median filter to smooth a temporal sequence of pixels. Results of in vivo experiments demonstrated that the proposed temporal median method can effectively remove random pulse noises induced by gamma radiation and achieve a robust CLI image.
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Reconstruction Method for Optical Tomography Based on the Linearized Bregman Iteration with Sparse Regularization. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2015; 2015:304191. [PMID: 26421055 PMCID: PMC4570181 DOI: 10.1155/2015/304191] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 07/28/2015] [Accepted: 08/06/2015] [Indexed: 12/21/2022]
Abstract
Optical molecular imaging is a promising technique and has been widely used in physiology, and pathology at cellular and molecular levels, which includes different modalities such as bioluminescence tomography, fluorescence molecular tomography and Cerenkov luminescence tomography. The inverse problem is ill-posed for the above modalities, which cause a nonunique solution. In this paper, we propose an effective reconstruction method based on the linearized Bregman iterative algorithm with sparse regularization (LBSR) for reconstruction. Considering the sparsity characteristics of the reconstructed sources, the sparsity can be regarded as a kind of a priori information and sparse regularization is incorporated, which can accurately locate the position of the source. The linearized Bregman iteration method is exploited to minimize the sparse regularization problem so as to further achieve fast and accurate reconstruction results. Experimental results in a numerical simulation and in vivo mouse demonstrate the effectiveness and potential of the proposed method.
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Tanha K, Pashazadeh AM, Pogue BW. Review of biomedical Čerenkov luminescence imaging applications. BIOMEDICAL OPTICS EXPRESS 2015; 6:3053-65. [PMID: 26309766 PMCID: PMC4541530 DOI: 10.1364/boe.6.003053] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 07/15/2015] [Accepted: 07/16/2015] [Indexed: 05/04/2023]
Abstract
Čerenkov radiation is a fascinating optical signal, which has been exploited for unique diagnostic biological sensing and imaging, with significantly expanded use just in the last half decade. Čerenkov Luminescence Imaging (CLI) has desirable capabilities for niche applications, using specially designed measurement systems that report on radiation distributions, radiotracer and nanoparticle concentrations, and are directly applied to procedures such as medicine assessment, endoscopy, surgery, quality assurance and dosimetry. When compared to the other imaging tools such as PET and SPECT, CLI can have the key advantage of lower cost, higher throughput and lower imaging time. CLI can also provide imaging and dosimetry information from both radioisotopes and linear accelerator irradiation. The relatively short range of optical photon transport in tissue means that direct Čerenkov luminescence imaging is restricted to small animals or near surface human use. Use of Čerenkov-excitation for additional molecular probes, is now emerging as a key tool for biosensing or radiosensitization. This review evaluates these new improvements in CLI for both medical value and biological insight.
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Affiliation(s)
- Kaveh Tanha
- Persian Gulf Nuclear Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Ali Mahmoud Pashazadeh
- Persian Gulf Nuclear Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Brian W Pogue
- Thayer School of Engineering, Department of Surgery in the Geisel School of Medicine, Dartmouth College, Hanover NH 03755 USA
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Hu Z, Qu Y, Wang K, Zhang X, Zha J, Song T, Bao C, Liu H, Wang Z, Wang J, Liu Z, Liu H, Tian J. In vivo nanoparticle-mediated radiopharmaceutical-excited fluorescence molecular imaging. Nat Commun 2015; 6:7560. [PMID: 26123615 PMCID: PMC4491820 DOI: 10.1038/ncomms8560] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 05/19/2015] [Indexed: 02/08/2023] Open
Abstract
Cerenkov luminescence imaging utilizes visible photons emitted from radiopharmaceuticals to achieve in vivo optical molecular-derived signals. Since Cerenkov radiation is weak, non-optimum for tissue penetration and continuous regardless of biological interactions, it is challenging to detect this signal with a diagnostic dose. Therefore, it is challenging to achieve useful activated optical imaging for the acquisition of direct molecular information. Here we introduce a novel imaging strategy, which converts γ and Cerenkov radiation from radioisotopes into fluorescence through europium oxide nanoparticles. After a series of imaging studies, we demonstrate that this approach provides strong optical signals with high signal-to-background ratios, an ideal tissue penetration spectrum and activatable imaging ability. In comparison with present imaging techniques, it detects tumour lesions with low radioactive tracer uptake or small tumour lesions more effectively. We believe it will facilitate the development of nuclear and optical molecular imaging for new, highly sensitive imaging applications. Insufficient imaging sensitivity can make it challenging to assess early stage tumour lesions in vivo. Here, the authors present the radiopharmaceutical-excited fluorescence imaging technique that can detect tumour lesions less than 2 mm in size in living mice.
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Affiliation(s)
- Zhenhua Hu
- 1] Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China [2] Beijing Key Laboratory of Molecular Imaging, Beijing 100190, China
| | - Yawei Qu
- Department of Gastroenterology, General Hospital of Chinese People's Armed Police Forces, Beijing, 100039, China
| | - Kun Wang
- 1] Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China [2] Beijing Key Laboratory of Molecular Imaging, Beijing 100190, China
| | - Xiaojun Zhang
- Department of Nuclear Medicine, Chinese PLA General Hospital, Beijing, 100853 China
| | - Jiali Zha
- Department of Gastroenterology, General Hospital of Chinese People's Armed Police Forces, Beijing, 100039, China
| | - Tianming Song
- Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Chengpeng Bao
- Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Haixiao Liu
- Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhongliang Wang
- School of Life Science and Technology, Xidian University, Xi'an 710071, China
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Zhongyu Liu
- Anal-colorectal Surgery Institute, No. 150 Central Hospital of PLA, Luoyang 471031, China
| | - Haifeng Liu
- Department of Gastroenterology, General Hospital of Chinese People's Armed Police Forces, Beijing, 100039, China
| | - Jie Tian
- 1] Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China [2] Beijing Key Laboratory of Molecular Imaging, Beijing 100190, China [3] The State Key Laboratory of Management and Control for Complex Systems, Chinese Academy of Sciences, Beijing 100190, China
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18
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Abstract
Cerenkov luminescence (CL) has been used recently in a plethora of medical applications like imaging and therapy with clinically relevant medical isotopes. The range of medical isotopes used is fairly large and expanding. The generation of in vivo light is useful since it circumvents depth limitations for excitation light. Cerenkov luminescence imaging (CLI) is much cheaper in terms of infrastructure than positron emission tomography (PET) and is particularly useful for imaging of superficial structures. Imaging can basically be done using a sensitive camera optimized for low-light conditions, and it has a better resolution than any other nuclear imaging modality. CLI has been shown to effectively diagnose disease with regularly used PET isotope ((18)F-FDG) in clinical setting. Cerenkov luminescence tomography, Cerenkov luminescence endoscopy, and intraoperative Cerenkov imaging have also been explored with positive conclusions expanding the current range of applications. Cerenkov has also been used to improve PET imaging resolution since the source of both is the radioisotope being used. Smart imaging agents have been designed based on modulation of the Cerenkov signal using small molecules and nanoparticles giving better insight of the tumor biology.
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Affiliation(s)
- Sudeep Das
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Daniel L J Thorek
- Division of Nuclear Medicine, Department of Radiology and Radiological Sciences, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Jan Grimm
- Molecular Pharmacology and Chemistry Program and Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA.
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19
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Hu H, Cao X, Kang F, Wang M, Lin Y, Liu M, Li S, Yao L, Liang J, Liang J, Nie Y, Chen X, Wang J, Wu K. Feasibility study of novel endoscopic Cerenkov luminescence imaging system in detecting and quantifying gastrointestinal disease: first human results. Eur Radiol 2015; 25:1814-22. [PMID: 25577521 DOI: 10.1007/s00330-014-3574-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 12/08/2014] [Accepted: 12/17/2014] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Cerenkov luminescence imaging (CLI) provides potential to use clinical radiotracers for optical imaging. The goal of this study was to present a newly developed endoscopic CLI (ECLI) system and illustrate its feasibility and potential in distinguishing and quantifying cancerous lesions of the GI tract. METHODS The ECLI system was established by integrating an electron-multiplying charge-coupled device camera with a flexible fibre endoscope. Phantom experiments and animal studies were conducted to test and illustrate the system in detecting and quantifying the presence of radionuclide in vitro and in vivo. A pilot clinical study was performed to evaluate our system in clinical settings. RESULTS Phantom and mice experiments demonstrated its ability to acquire both the luminescent and photographic images with high accuracy. Linear quantitative relationships were also obtained when comparing the ECLI radiance with the radiotracer activity (r (2) = 0.9779) and traditional CLI values (r (2) = 0.9025). Imaging of patients revealed the potential of ECLI in the identification and quantification of cancerous tissue from normal, which showed good consistence with the clinical PET examination. CONCLUSIONS The new ECLI system shows good consistence with the clinical PET examination and has great potential for clinical translation and in aiding detection of the GI tract disease. KEY POINTS • CLI preserves the characteristics of both optical and radionuclide imaging. • CLI provides great potential for clinical translation of optical imaging. • The newly developed endoscopic CLI (ECLI) has quantification and imaging capacities. • GI tract has accessible open surfaces, making ECLI a potentially suitable technique. • Cerenkov endoscopy has great clinical potential in detecting GI disease.
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Affiliation(s)
- Hao Hu
- State Key Laboratory of Cancer Biology, Department of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
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20
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Holt RW, Zhang R, Esipova TV, Vinogradov SA, Glaser AK, Gladstone DJ, Pogue BW. Cherenkov excited phosphorescence-based pO2 estimation during multi-beam radiation therapy: phantom and simulation studies. Phys Med Biol 2014; 59:5317-5328. [PMID: 25146556 DOI: 10.1088/0031-9155/59/18/5317] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Megavoltage radiation beams used in External Beam Radiotherapy (EBRT) generate Cherenkov light emission in tissues and equivalent phantoms. This optical emission was utilized to excite an oxygen-sensitive phosphorescent probe, PtG4, which has been developed specifically for NIR lifetime-based sensing of the partial pressure of oxygen (pO2). Phosphorescence emission, at different time points with respect to the excitation pulse, was acquired by an intensifier-gated CCD camera synchronized with radiation pulses delivered by a medical linear accelerator. The pO2 distribution was tomographically recovered in a tissue-equivalent phantom during EBRT with multiple beams targeted from different angles at a tumor-like anomaly. The reconstructions were tested in two different phantoms that have fully oxygenated background, to compare a fully oxygenated and a fully deoxygenated inclusion. To simulate a realistic situation of EBRT, where the size and location of the tumor is well known, spatial information of a prescribed region was utilized in the recovery estimation. The phantom results show that region-averaged pO2 values were recovered successfully, differentiating aerated and deoxygenated inclusions. Finally, a simulation study was performed showing that pO2 in human brain tumors can be measured to within 15 mmHg for edge depths less than 10-20 mm using the Cherenkov Excited Phosphorescence Oxygen imaging (CEPhOx) method and PtG4 as a probe. This technique could allow non-invasive monitoring of pO2 in tumors during the normal process of EBRT, where beams are generally delivered from multiple angles or arcs during each treatment fraction.
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Affiliation(s)
- Robert W Holt
- Department of Physics & Astronomy, Dartmouth College Hanover NH 03755
| | - Rongxiao Zhang
- Department of Physics & Astronomy, Dartmouth College Hanover NH 03755
| | - Tatiana V Esipova
- Department of Biophysics & Biochemistry, Perelman School of Medicine, University of Pennsylvania, Philadelphia PA 19104
| | - Sergei A Vinogradov
- Department of Biophysics & Biochemistry, Perelman School of Medicine, University of Pennsylvania, Philadelphia PA 19104
| | - Adam K Glaser
- Thayer School of Engineering, Dartmouth College Hanover NH 03755
| | - David J Gladstone
- Department of Medicine, Geisel School of Medicine, Lebanon NH 03756.,Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
| | - Brian W Pogue
- Department of Physics & Astronomy, Dartmouth College Hanover NH 03755.,Thayer School of Engineering, Dartmouth College Hanover NH 03755
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21
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Ding X, Wang K, Jie B, Luo Y, Hu Z, Tian J. Probability method for Cerenkov luminescence tomography based on conformance error minimization. BIOMEDICAL OPTICS EXPRESS 2014; 5:2091-2112. [PMID: 25071951 PMCID: PMC4102351 DOI: 10.1364/boe.5.002091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/30/2014] [Accepted: 06/04/2014] [Indexed: 05/29/2023]
Abstract
Cerenkov luminescence tomography (CLT) was developed to reconstruct a three-dimensional (3D) distribution of radioactive probes inside a living animal. Reconstruction methods are generally performed within a unique framework by searching for the optimum solution. However, the ill-posed aspect of the inverse problem usually results in the reconstruction being non-robust. In addition, the reconstructed result may not match reality since the difference between the highest and lowest uptakes of the resulting radiotracers may be considerably large, therefore the biological significance is lost. In this paper, based on the minimization of a conformance error, a probability method is proposed that consists of qualitative and quantitative modules. The proposed method first pinpoints the organ that contains the light source. Next, we developed a 0-1 linear optimization subject to a space constraint to model the CLT inverse problem, which was transformed into a forward problem by employing a region growing method to solve the optimization. After running through all of the elements used to grow the sources, a source sequence was obtained. Finally, the probability of each discrete node being the light source inside the organ was reconstructed. One numerical study and two in vivo experiments were conducted to verify the performance of the proposed algorithm, and comparisons were carried out using the hp-finite element method (hp-FEM). The results suggested that our proposed probability method was more robust and reasonable than hp-FEM.
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Affiliation(s)
- Xintao Ding
- School of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China
- School of Mathematics and Computer Science, Anhui Normal University, Wuhu, Anhui 241003, China
| | - Kun Wang
- Key Laboratory of Molecular Imaging of Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Biao Jie
- School of Mathematics and Computer Science, Anhui Normal University, Wuhu, Anhui 241003, China
| | - Yonglong Luo
- School of Mathematics and Computer Science, Anhui Normal University, Wuhu, Anhui 241003, China
| | - Zhenhua Hu
- Key Laboratory of Molecular Imaging of Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Jie Tian
- Key Laboratory of Molecular Imaging of Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
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22
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Helo Y, Rosenberg I, D’Souza D, MacDonald L, Speller R, Royle G, Gibson A. Imaging Cerenkov emission as a quality assurance tool in electron radiotherapy. Phys Med Biol 2014; 59:1963-78. [DOI: 10.1088/0031-9155/59/8/1963] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Darne C, Lu Y, Sevick-Muraca EM. Small animal fluorescence and bioluminescence tomography: a review of approaches, algorithms and technology update. Phys Med Biol 2013; 59:R1-64. [PMID: 24334634 DOI: 10.1088/0031-9155/59/1/r1] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Emerging fluorescence and bioluminescence tomography approaches have several common, yet several distinct features from established emission tomographies of PET and SPECT. Although both nuclear and optical imaging modalities involve counting of photons, nuclear imaging techniques collect the emitted high energy (100-511 keV) photons after radioactive decay of radionuclides while optical techniques count low-energy (1.5-4.1 eV) photons that are scattered and absorbed by tissues requiring models of light transport for quantitative image reconstruction. Fluorescence imaging has been recently translated into clinic demonstrating high sensitivity, modest tissue penetration depth, and fast, millisecond image acquisition times. As a consequence, the promise of quantitative optical tomography as a complement of small animal PET and SPECT remains high. In this review, we summarize the different instrumentation, methodological approaches and schema for inverse image reconstructions for optical tomography, including luminescence and fluorescence modalities, and comment on limitations and key technological advances needed for further discovery research and translation.
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24
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Ma X, Kang F, Xu F, Feng A, Zhao Y, Lu T, Yang W, Wang Z, Lin M, Wang J. Enhancement of Cerenkov luminescence imaging by dual excitation of Er(3+),Yb(3+)-doped rare-earth microparticles. PLoS One 2013; 8:e77926. [PMID: 24205030 PMCID: PMC3808356 DOI: 10.1371/journal.pone.0077926] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Accepted: 09/06/2013] [Indexed: 12/29/2022] Open
Abstract
UNLABELLED Cerenkov luminescence imaging (CLI) has been successfully utilized in various fields of preclinical studies; however, CLI is challenging due to its weak luminescent intensity and insufficient penetration capability. Here, we report the design and synthesis of a type of rare-earth microparticles (REMPs), which can be dually excited by Cerenkov luminescence (CL) resulting from the decay of radionuclides to enhance CLI in terms of intensity and penetration. METHODS Yb(3+)- and Er(3+)- codoped hexagonal NaYF4 hollow microtubes were synthesized via a hydrothermal route. The phase, morphology, and emission spectrum were confirmed for these REMPs by power X-ray diffraction (XRD), scanning electron microscopy (SEM), and spectrophotometry, respectively. A commercial CCD camera equipped with a series of optical filters was employed to quantify the intensity and spectrum of CLI from radionuclides. The enhancement of penetration was investigated by imaging studies of nylon phantoms and nude mouse pseudotumor models. RESULTS the REMPs could be dually excited by CL at the wavelengths of 520 and 980 nm, and the emission peaks overlaid at 660 nm. This strategy approximately doubled the overall detectable intensity of CLI and extended its maximum penetration in nylon phantoms from 5 to 15 mm. The penetration study in living animals yielded similar results. CONCLUSIONS this study demonstrated that CL can dually excite REMPs and that the overlaid emissions in the range of 660 nm could significantly enhance the penetration and intensity of CL. The proposed enhanced CLI strategy may have promising applications in the future.
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Affiliation(s)
- Xiaowei Ma
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an, PR China
| | - Fei Kang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an, PR China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, PR China
- Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Ailing Feng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, PR China
- Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Ying Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, PR China
- Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Tianjian Lu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, PR China
- Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Weidong Yang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an, PR China
| | - Zhe Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an, PR China
| | - Min Lin
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, PR China
- Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, PR China
- * E-mail: (JW); (ML)
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an, PR China
- * E-mail: (JW); (ML)
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25
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Kotagiri N, Niedzwiedzki DM, Ohara K, Achilefu S. Activatable Probes Based on Distance-Dependent Luminescence Associated with Cerenkov Radiation. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302564] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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26
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Kotagiri N, Niedzwiedzki DM, Ohara K, Achilefu S. Activatable probes based on distance-dependent luminescence associated with Cerenkov radiation. Angew Chem Int Ed Engl 2013; 52:7756-60. [PMID: 23765506 DOI: 10.1002/anie.201302564] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Indexed: 11/10/2022]
Abstract
Let me get my nanoruler: Activatable probes based on radionuclide and quantum dots (QDs) were constructed using DNA as a linker. Cerenkov radiation from (64)Cu was used to excite the QDs in a distance-dependent manner. The luminescence was lowest nearest to the QD and increased with distance.
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Affiliation(s)
- Nalinikanth Kotagiri
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, MO 63110, USA
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27
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Hu Z, Yang W, Ma X, Ma W, Qu X, Liang J, Wang J, Tian J. Cerenkov Luminescence Tomography of Aminopeptidase N (APN/CD13) Expression in Mice Bearing HT1080 Tumors. Mol Imaging 2013; 12:7290.2012.00030. [DOI: 10.2310/7290.2012.00030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Affiliation(s)
- Zhenhua Hu
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Weidong Yang
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Xiaowei Ma
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Wenhui Ma
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Xiaochao Qu
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Jimin Liang
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Jing Wang
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Jie Tian
- From the School of Life Sciences and Technology, Xidian University, Xi'an, China; Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China; and Institute of Automation, Chinese Academy of Sciences, Beijing, China
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28
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Zhang X, Kuo C, Moore A, Ran C. In vivo optical imaging of interscapular brown adipose tissue with (18)F-FDG via Cerenkov luminescence imaging. PLoS One 2013; 8:e62007. [PMID: 23637947 PMCID: PMC3634850 DOI: 10.1371/journal.pone.0062007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 03/16/2013] [Indexed: 01/21/2023] Open
Abstract
Objective Brown adipose tissue (BAT), a specialized tissue for thermogenesis, plays important roles for metabolism and energy expenditure. Recent studies validated BAT’s presence in human adults, making it an important re-emerging target for various pathologies. During this validation, PET images with 18F-FDG showed significant uptake of 18F-FDG by BAT under certain conditions. Here, we demonstrated that Cerenkov luminescence imaging (CLI) using 18F-FDG could be utilized for in vivo optical imaging of BAT in mice. Methods Mice were injected with 18F-FDG and imaged 60 minutes later with open filter and 2 minute acquisition. In vivo activation of BAT was performed by norepinephrine and cold treatment under isoflurane or ketamine anesthesia. Spectral unmixing and 3D imaging reconstruction were conducted with multiple-filter CLI images. Results 1) It was feasible to use CLI with 18F-FDG to image interscapular BAT in mice, with the majority of the signal (>85%) at the interscapular site originating from BAT; 2) The method was reliable because excellent correlations between in vivo CLI, ex vivo CLI, and ex vivo radioactivity were observed; 3) CLI could be used for monitoring BAT activation under different conditions; 4) CLI signals from the group under short-term isoflurane anesthesia were significantly higher than that from the group under long-term anesthesia; 5) The CLI spectrum of 18F-FDG with a peak at 640 nm in BAT after spectral unmixing reflected the actual context of BAT; 6) Finally 3D reconstruction images showed excellent correlation between the source of the light signal and the location and physical shape of BAT. Conclusion CLI with 18F-FDG is a feasible and reliable method for imaging BAT in mice. Compared to PET imaging, CLI is significantly cheaper, faster for 2D planar imaging and easier to use. We believe that this method could be used as an important tool for researchers investigating BAT.
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Affiliation(s)
- Xueli Zhang
- Molecular Imaging Laboratory, MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Charlestown, Massachusetts, United States of America
- Center for Drug Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Chaincy Kuo
- Caliper, a Perkin Elmer Company, Alameda, California, United States of America
| | - Anna Moore
- Molecular Imaging Laboratory, MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Charlestown, Massachusetts, United States of America
- * E-mail: (CR); (AM)
| | - Chongzhao Ran
- Molecular Imaging Laboratory, MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Charlestown, Massachusetts, United States of America
- * E-mail: (CR); (AM)
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