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Ren J, Wang X, Liu C, Sun H, Tong J, Lin M, Li J, Liang L, Yin F, Xie M, Liu Y. 3D Ultrasonic Brain Imaging with Deep Learning Based on Fully Convolutional Networks. SENSORS (BASEL, SWITZERLAND) 2023; 23:8341. [PMID: 37837171 PMCID: PMC10575417 DOI: 10.3390/s23198341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/16/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023]
Abstract
Compared to magnetic resonance imaging (MRI) and X-ray computed tomography (CT), ultrasound imaging is safer, faster, and more widely applicable. However, the use of conventional ultrasound in transcranial brain imaging for adults is predominantly hindered by the high acoustic impedance contrast between the skull and soft tissue. This study introduces a 3D AI algorithm, Brain Imaging Full Convolution Network (BIFCN), combining waveform modeling and deep learning for precise brain ultrasound reconstruction. We constructed a network comprising one input layer, four convolution layers, and one pooling layer to train our algorithm. In the simulation experiment, the Pearson correlation coefficient between the reconstructed and true images was exceptionally high. In the laboratory, the results showed a slightly lower but still impressive coincidence degree for 3D reconstruction, with pure water serving as the initial model and no prior information required. The 3D network can be trained in 8 h, and 10 samples can be reconstructed in just 12.67 s. The proposed 3D BIFCN algorithm provides a highly accurate and efficient solution for mapping wavefield frequency domain data to 3D brain models, enabling fast and precise brain tissue imaging. Moreover, the frequency shift phenomenon of blood may become a hallmark of BIFCN learning, offering valuable quantitative information for whole-brain blood imaging.
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Affiliation(s)
- Jiahao Ren
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
| | - Xiaocen Wang
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
| | - Chang Liu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
| | - He Sun
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
| | - Junkai Tong
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
| | - Min Lin
- Department of Mechanical Engineering, University of Wyoming, Laramie, WY 82071, USA;
| | - Jian Li
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
| | - Lin Liang
- Schlumberger-Doll Research, Cambridge, MA 02139, USA;
| | - Feng Yin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;
| | - Mengying Xie
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
| | - Yang Liu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; (J.R.); (X.W.); (C.L.); (H.S.); (J.T.); (J.L.)
- International Institute for Innovative Design and Intelligent Manufacturing of Tianjin University in Zhejiang, Shaoxing 330100, China
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Park S, Beom DG, Bae EH, Kim SW, Kim DJ, Kim CS. Model-Based Needle Identification Using Image Analysis and Needle Library Matching for Ultrasound-Guided Kidney Biopsy: A Feasibility Study. ULTRASOUND IN MEDICINE & BIOLOGY 2023; 49:1699-1708. [PMID: 37137741 DOI: 10.1016/j.ultrasmedbio.2023.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 05/05/2023]
Abstract
OBJECTIVE The aim of the work described here was to determine the feasibility of using a novel biopsy needle detection technique that achieves high sensitivity and specificity in a trade-off of resolution, detectability and depth of imaging. METHODS The proposed needle detection method consists of a model-based image analysis, temporal needle projection and needle library matching: (i) Image analysis was formulated under the signal decomposition framework; (ii) temporal projection converted the time-resolved needle dynamics into a single image of the desired needle; and (iii) the enhanced needle structure was spatially refined by matching a long, straight linear object in the needle library. The efficacy was examined with respect to different needle visibility. RESULTS Our method effectively eliminated confounding effects of the background tissue artifacts more robustly than conventional methods, thus improving needle visibility even with the low contrast between the needle and tissue. The improvement in needle structure further resulted in an improvement in estimation performance for the trajectory angle and tip position. CONCLUSION Our three-step needle detection method can reliably detect needle position without the need for external devices, increasing the needle conspicuity and reducing motion sensitivity.
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Affiliation(s)
- Suhyung Park
- Department of Computer Engineering, Chonnam National University, Gwangju, Republic of Korea; Department of ICT Convergence System Engineering, Chonnam National University, Gwangju, Republic of Korea
| | - Dong Gyu Beom
- Department of Computer Engineering, Chonnam National University, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Dong Joon Kim
- Department of Anesthesiology and Pain Medicine, Chosun University Medical School, Gwangju, Republic of Korea; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea.
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Yan Y, Tang L, Huang H, Yu Q, Xu H, Chen Y, Chen M, Zhang Q. Four-quadrant fast compressive tracking of breast ultrasound videos for computer-aided response evaluation of neoadjuvant chemotherapy in mice. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 217:106698. [PMID: 35217304 DOI: 10.1016/j.cmpb.2022.106698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 01/26/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND AND OBJECTIVE Neoadjuvant chemotherapy (NAC) is a valuable treatment approach for locally advanced breast cancer. Contrast-enhanced ultrasound (CEUS) potentially enables the assessment of therapeutic response to NAC. In order to evaluate the response accurately, quantitatively and objectively, a method that can effectively compensate motions of breast cancer in CEUS videos is urgently needed. METHODS We proposed the four-quadrant fast compressive tracking (FQFCT) approach to automatically perform CEUS video tracking and compensation for mice undergoing NAC. The FQFCT divided a tracking window into four smaller windows at four quadrants of a breast lesion and formulated the tracking at each quadrant as a binary classification task. After the FQFCT of breast cancer videos, the quantitative features of CEUS including the mean transit time (MTT) were computed. All mice showed a pathological response to NAC. The features between pre- (day 1) and post-treatment (day 3 and day 5) in these responders were statistically compared. RESULTS When we tracked the CEUS videos of mice with the FQFCT, the average tracking error of FQFCT was 0.65 mm, reduced by 46.72% compared with the classic fast compressive tracking method (1.22 mm). After compensation with the FQFCT, the MTT on day 5 of the NAC was significantly different from the MTT before NAC (day 1) (p = 0.013). CONCLUSIONS The FQFCT improves the accuracy of CEUS video tracking and contributes to the computer-aided response evaluation of NAC for breast cancer in mice.
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Affiliation(s)
- Yifei Yan
- The SMART (Smart Medicine and AI-Based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai, China; School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
| | - Lei Tang
- Department of Ultrasound, Tongren Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200050, China
| | - Haibo Huang
- The SMART (Smart Medicine and AI-Based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai, China; School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
| | - Qihui Yu
- The SMART (Smart Medicine and AI-Based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai, China; School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
| | - Haohao Xu
- The SMART (Smart Medicine and AI-Based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai, China; School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
| | - Ying Chen
- The SMART (Smart Medicine and AI-Based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai, China; School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
| | - Man Chen
- Department of Ultrasound, Tongren Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200050, China.
| | - Qi Zhang
- The SMART (Smart Medicine and AI-Based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai, China; School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China.
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Allan RB, Delaney CL. Identification of micro-channels within chronic total occlusions using contrast-enhanced ultrasound. J Vasc Surg 2021; 74:606-614.e1. [PMID: 33548424 DOI: 10.1016/j.jvs.2020.12.108] [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] [Received: 08/18/2020] [Accepted: 12/23/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Vascular micro-channels within chronic total occlusions (CTO) have been identified in histopathology and animal studies. They have been proposed as a potential path for achieving endovascular crossing via the lumen. There are currently no noninvasive means of imaging these structures. The aim of this study was to investigate whether contrast-enhanced ultrasound (CEUS) examination can identify micro-channels within CTO in humans. METHODS CTO within the femoropopliteal arteries were imaged with CEUS examination in 38 patients. Segments containing micro-channels were identified and their length measured. The proportion of occlusion length containing micro-channels was assessed for each case. Micro-channel appearances including linear or tortuous configuration, crossing of occlusion caps, and connections to vasa vasorum were recorded. RESULTS The median CTO length was 17.0 cm (interquartile range [IQR], 6.9-27.9 cm) and median age of CTO was 12 months (IQR, 6-16 months). Micro-channels were identified in 92.1% of cases (35/38). The median length within a lesion containing micro-channels was 6.4 cm (IQR, 2.4-14.3 cm) and median proportion of CTO containing micro-channels was 47.9% (IQR, 1.7%-28.5%). A linear micro-channel configuration was seen in 84.2% of cases and a tortuous configuration was seen in 57.9% of cases. Micro-channel connections through the cap were seen in 50% (19/38 cases) and connections to the vasa vasorum in 71.1% (27/38 cases). No association was found between the proportion of each lesion containing micro-channels and CTO age, lesion length or calcification severity. There were no adverse effects related to contrast use. CONCLUSIONS CEUS can be used to detect micro-channels in CTO in human femoropopliteal arteries. This imaging technique is safe and minimally invasive and may represent a practical method for selection of occlusion crossing method. Further work is required to determine whether identification of micro-channels can be used to improve treatment decision-making and provide a better understanding of the natural history of femoropopliteal CTO.
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Affiliation(s)
- Richard B Allan
- Department of Vascular and Endovascular Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia; College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia.
| | - Christopher L Delaney
- Department of Vascular and Endovascular Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia; College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
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Oezdemir I, Wessner CE, Shaw C, Eisenbrey JR, Hoyt K. Tumor Vascular Networks Depicted in Contrast-Enhanced Ultrasound Images as a Predictor for Transarterial Chemoembolization Treatment Response. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:2276-2286. [PMID: 32561069 PMCID: PMC7725382 DOI: 10.1016/j.ultrasmedbio.2020.05.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/14/2020] [Accepted: 05/12/2020] [Indexed: 05/25/2023]
Abstract
Hepatocellular carcinoma (HCC) is prevalent worldwide. Among the various therapeutic options, transarterial chemoembolization (TACE) can be applied to the tumor vascular network by restricting the nutrients and oxygen supply to the tumor. Unique morphologic properties of this network may provide information predictive of future therapeutic responses, which would be significant for decision making during treatment planning. The extraction of morphologic features from the tumor vascular network depicted in abdominal contrast-enhanced ultrasound (CEUS) images faces several challenges, such as organ motion, limited resolution caused by clutter signal and segmentation of the vascular structures at multiple scales. In this study, we present an image processing and analysis approach for the prediction of HCC response to TACE treatment using clinical CEUS images and known pathologic responses. This method focuses on addressing the challenges of CEUS by incorporating a two-stage motion correction strategy, clutter signal removal, vessel enhancement at multiple scales and machine learning for predictive modeling. The morphologic features, namely, number of vessels (NV), number of bifurcations (NB), vessel to tissue ratio (VR), mean vessel length, tortuosity and diameter, from tumor architecture were quantified from CEUS images of 36 HCC patients before TACE treatment. Our analysis revealed that NV, NB and VR are the dominant features for the prediction of long-term TACE response. The model had an accuracy of 86% with a sensitivity and specificity of 89% and 82%, respectively. Reliable prediction of the TACE therapy response using CEUS-derived image features may help to provide personalized therapy planning, which will ultimately improve patient outcomes.
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Affiliation(s)
- Ipek Oezdemir
- Department of Bioengineering, University of Texas at Dallas, Richardson, Texas, USA
| | - Corrine E Wessner
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Colette Shaw
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Kenneth Hoyt
- Department of Bioengineering, University of Texas at Dallas, Richardson, Texas, USA.
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Zhang J, Li N, Dong F, Liang S, Wang D, An J, Long Y, Wang Y, Luo Y, Zhang J. Ultrasound Microvascular Imaging Based on Super-Resolution Radial Fluctuations. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2020; 39:1507-1516. [PMID: 32064662 DOI: 10.1002/jum.15238] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 01/02/2020] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Super-resolution ultrasound (SRUS) has become a tool for in vivo microvascular imaging. Most of the SRUS methods are based on microbubble localization: namely, ultrasound localization microscopy (ULM). The aim of this study was to develop a nonlocalization SRUS method and verify its feasibility in microvascular imaging. METHODS We introduce a new super-resolution strategy based on the postprocessing of contrast-enhanced ultrasound. The proposed method, which is termed ultrasound diffraction attenuation microscopy (UDAM), uses super-resolution radial fluctuations instead of microbubble localization to overcome acoustic diffraction limits. Biceps of Japanese long-ear white rabbits were adopted to validate its feasibility on muscle vascular imaging, using a clinical accessible ultrasound system at a frame rate of 30 Hz under a single bolus injection of SonoVue (Bracco SpA, Milan, Italy). The super-resolution image was compared with the maximum-intensity projection and ULM. RESULTS The animal study illustrates that the proposed UDAM can obtain super-resolution microvascular images of rabbits' muscles under a single bolus injection of SonoVue with a 150-second contrast-enhanced ultrasound video. Both ULM and UDAM can achieve a very similar vascular structure with the maximum-intensity projection but much higher spatial resolution. The measurement of 1-dimensional signals shows that UDAM can distinguish the subwavelength structures and substantial reduce the full width at half-maximum of microvessels. CONCLUSIONS We conclude UDAM provides a noninvasive tool for in vivo super-resolution microvascular imaging.
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Affiliation(s)
- Jiabin Zhang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
- Institute of Molecular Medicine, Peking University, Beijing, China
| | - Nan Li
- Department of Ultrasound, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Feihong Dong
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Shuyuan Liang
- Department of Ultrasound, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Di Wang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Jian An
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Yunfei Long
- College of Engineering, Peking University, Beijing, China
| | - Yuexiang Wang
- Department of Ultrasound, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yukun Luo
- Department of Ultrasound, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Jue Zhang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
- College of Engineering, Peking University, Beijing, China
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Averkiou MA, Bruce MF, Powers JE, Sheeran PS, Burns PN. Imaging Methods for Ultrasound Contrast Agents. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:498-517. [PMID: 31813583 DOI: 10.1016/j.ultrasmedbio.2019.11.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/05/2019] [Accepted: 11/08/2019] [Indexed: 05/23/2023]
Abstract
Microbubble contrast agents were introduced more than 25 years ago with the objective of enhancing blood echoes and enabling diagnostic ultrasound to image the microcirculation. Cardiology and oncology waited anxiously for the fulfillment of that objective with one clinical application each: myocardial perfusion, tumor perfusion and angiogenesis imaging. What was necessary though at first was the scientific understanding of microbubble behavior in vivo and the development of imaging technology to deliver the original objective. And indeed, for more than 25 years bubble science and imaging technology have evolved methodically to deliver contrast-enhanced ultrasound. Realization of the basic bubbles properties, non-linear response and ultrasound-induced destruction, has led to a plethora of methods; algorithms and techniques for contrast-enhanced ultrasound (CEUS) and imaging modes such as harmonic imaging, harmonic power Doppler, pulse inversion, amplitude modulation, maximum intensity projection and many others were invented, developed and validated. Today, CEUS is used everywhere in the world with clinical indications both in cardiology and in radiology, and it continues to mature and evolve and has become a basic clinical tool that transforms diagnostic ultrasound into a functional imaging modality. In this review article, we present and explain in detail bubble imaging methods and associated artifacts, perfusion quantification approaches, and implementation considerations and regulatory aspects.
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Affiliation(s)
| | - Matthew F Bruce
- Applied Physics Laboratory, University of Washington, Seattle, Washington, USA
| | | | - Paul S Sheeran
- Philips Ultrasound, Bothell, Washington, USA; Knight Cardiovascular Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Peter N Burns
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Research Institute, Toronto, Ontario, Canada
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Gupta I, Freid B, Masarapu V, Machado P, Trabulsi E, Wallace K, Halpern E, Forsberg F. Transrectal Subharmonic Ultrasound Imaging for Prostate Cancer Detection. Urology 2019; 138:106-112. [PMID: 31899231 DOI: 10.1016/j.urology.2019.12.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 12/21/2019] [Accepted: 12/23/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To assess the prostate cancer (CaP) detection rates of contrast-enhanced, transrectal subharmonic ultrasound imaging (SHI). MATERIALS AND METHODS This IRB-approved study enrolled 55 subjects. The initial 5 subjects were studied for SHI optimization, while the remaining 50 were evaluated with contrast-enhanced sonography using continuous SHI, color, and power Doppler as well as conventional grayscale, continuous color, and power Doppler and SHI combined with maximum flash replenishment. A maximum of 6 directed biopsy cores were obtained from sites of greatest asymmetrical enhancement, followed by spatially distributed cores in a double sextant distribution. Subharmonic time-intensity parameters, including time to peak intensity, peak intensity, and estimated perfusion were also evaluated for each directed biopsy core. Receiver operating characteristic curve analysis and conditional logistic regression were employed to assess the benefit of each modality and the quantitative SHI parameters. RESULTS Cancer was detected in 22 of 50 subjects. Among subjects with clinically significant CaP (n = 11), targeted cores were more likely to be positive (odds ratio 1.39, P = .02). The majority of patients detected by SHI demonstrated significant CaP (5/8); SHI remained an independent marker of malignancy in a multivariate logistic regression model (P = .027). Receiver operating characteristic curve analysis of imaging findings compared to biopsy results yielded diagnostic accuracies ranging from 0.59 to 0.80 for all imaging modalities with the highest being for quantitative subharmonic perfusion estimates. CONCLUSION This first-in-humans study provides a preliminary estimate of the diagnostic accuracy of SHI for detection of clinically significant CaP (up to 80%).
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Affiliation(s)
- I Gupta
- Thomas Jefferson University, Philadelphia, PA
| | - B Freid
- Thomas Jefferson University, Philadelphia, PA
| | - V Masarapu
- Thomas Jefferson University, Philadelphia, PA
| | - P Machado
- Thomas Jefferson University, Philadelphia, PA
| | - E Trabulsi
- Thomas Jefferson University, Philadelphia, PA
| | | | - E Halpern
- Thomas Jefferson University, Philadelphia, PA
| | - F Forsberg
- Thomas Jefferson University, Philadelphia, PA.
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Butler M, Perperidis A, Zahra JLM, Silva N, Averkiou M, Duncan WC, McNeilly A, Sboros V. Differentiation of Vascular Characteristics Using Contrast-Enhanced Ultrasound Imaging. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:2444-2455. [PMID: 31208880 DOI: 10.1016/j.ultrasmedbio.2019.05.015] [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: 08/21/2018] [Revised: 05/02/2019] [Accepted: 05/10/2019] [Indexed: 05/09/2023]
Abstract
Ultrasound contrast imaging has been used to assess tumour growth and regression by assessing the flow through the macro- and micro-vasculature. Our aim was to differentiate the blood kinetics of vessels such as veins, arteries and microvasculature within the limits of the spatial resolution of contrast-enhanced ultrasound imaging. The highly vascularised ovine ovary was used as a biological model. Perfusion of the ovary with SonoVue was recorded with a Philips iU22 scanner in contrast imaging mode. One ewe was treated with prostaglandin to induce vascular regression. Time-intensity curves (TIC) for different regions of interest were obtained, a lognormal model was fitted and flow parameters calculated. Parametric maps of the whole imaging plane were generated for 2 × 2 pixel regions of interest. Further analysis of TICs from selected locations helped specify parameters associated with differentiation into four categories of vessels (arteries, veins, medium-sized vessels and micro-vessels). Time-dependent parameters were associated with large veins, whereas intensity-dependent parameters were associated with large arteries. Further development may enable automation of the technique as an efficient way of monitoring vessel distributions in a clinical setting using currently available scanners.
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Affiliation(s)
- Mairead Butler
- Heriot-Watt University, Institute of Biochemistry, Biological Physics and Bio Engineering, Riccarton, Edinburgh, UK.
| | - Antonios Perperidis
- Heriot-Watt University, Institute of Signals, Sensors and Systems, Riccarton, Edinburgh, UK
| | | | - Nadia Silva
- Centre for Marine Sciences, University of Algarve Faro, Portugal
| | - Michalakis Averkiou
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - W Colin Duncan
- Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
| | - Alan McNeilly
- Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
| | - Vassilis Sboros
- Heriot-Watt University, Institute of Biochemistry, Biological Physics and Bio Engineering, Riccarton, Edinburgh, UK
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Gupta A, Forsberg MA, Dulin K, Jaffe S, Dave JK, Halldorsdottir VG, Marshall A, Forsberg AI, Eisenbrey JR, Machado P, Fox TB, Liu JB, Forsberg F. Comparing Quantitative Immunohistochemical Markers of Angiogenesis to Contrast-Enhanced Subharmonic Imaging. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2016; 35:1839-1847. [PMID: 27388814 PMCID: PMC7172498 DOI: 10.7863/ultra.15.05024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 12/14/2015] [Indexed: 06/06/2023]
Abstract
OBJECTIVES Different methods for obtaining tumor neovascularity parameters based on immunohistochemical markers were compared to contrast-enhanced subharmonic imaging (SHI). METHODS Eighty-five athymic nude female rats were implanted with 5 × 10(6) breast cancer cells (MDA-MB-231) in the mammary fat pad. The contrast agent Definity (Lantheus Medical Imaging, North Billerica, MA) was injected, and SHI was performed using a modified Sonix RP scanner (Analogic Ultrasound, Richmond, British Columbia, Canada) with a L9-4 linear array (transmitting/receiving frequencies, 8/4 MHz). Afterward, specimens were stained for endothelial cells (CD31), vascular endothelial growth factor (VEGF), and cyclooxygenase 2 (COX-2). Tumor neovascularity was assessed in 4 different ways using a histomorphometry system (×100 magnification: (1) over the entire tumor; (2) in small sub-regions of interest (ROIs); (3) in the tumor periphery and centrally; and (4) in 3 regions of maximum marker expression (so-called hot spots). Results from specimens and from SHI were compared by linear regression. RESULTS Fifty-four rats (64%) showed tumor growth, and 38 were successfully imaged. Subharmonic imaging depicted the tortuous morphologic characteristics of tumor neovessels and delineated small areas of necrosis. The immunohistochemical markers did not correlate with SHI measures over the entire tumor area or over small sub-ROIs (P > .18). However, when the specimens were subdivided into central and peripheral regions, COX-2 and VEGF correlated with SHI in the periphery (r = -0.42; P = .005; and r = -0.32; P = .049, respectively). CONCLUSIONS When comparing quantitative contrast measures of tumor neovascularity to immunohistochemical markers of angiogenesis in xenograft models, ROIs corresponding to the biologically active region should be used to account for tumor heterogeneity.
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Affiliation(s)
- Aditi Gupta
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA, School of Biomedical Engineering, Sciences, and Health Systems, Drexel University, Philadelphia, Pennsylvania USA
| | | | - Kelly Dulin
- University of Pittsburgh, Pittsburgh, Pennsylvania USA
| | | | - Jaydev K Dave
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA
| | - Valgerdur G Halldorsdottir
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA, School of Biomedical Engineering, Sciences, and Health Systems, Drexel University, Philadelphia, Pennsylvania USA
| | - Andrew Marshall
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA, School of Biomedical Engineering, Sciences, and Health Systems, Drexel University, Philadelphia, Pennsylvania USA
| | - Anya I Forsberg
- Plymouth-Whitemarsh High School, Plymouth Meeting, Pennsylvania USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA
| | - Priscilla Machado
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA
| | - Traci B Fox
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA, Department of Radiologic Sciences, College of Health Professions, Thomas Jefferson University, Philadelphia, Pennsylvania USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania USA
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Watanabe R, Munemasa T, Matsumura M. Contrast-enhanced ultrasound with perflubutane in the assessment of anti-angiogenic effects: early prediction of the anticancer activity of bevacizumab in a mouse xenografted model. ULTRASOUND IN MEDICINE & BIOLOGY 2015; 41:2497-2505. [PMID: 26022792 DOI: 10.1016/j.ultrasmedbio.2015.04.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 04/23/2015] [Accepted: 04/26/2015] [Indexed: 06/04/2023]
Abstract
To investigate the feasibility of contrast-enhanced ultrasound (CEUS) with perflubutane for evaluating anti-angiogenic effects, we assessed the contrast enhancement of mice xenograft treated with bevacizumab. SJSA-1 implanted mice were imaged before and 2, 6, 9 and 13 d after initiation of bevacizumab or saline treatment. Intra-tumoral perfusion areas were quantified by binarizing the ultrasound images and the micro-vessel density was observed by CD31 immunohistochemistry. As a result, the perfusion area and its ratio in the tumor were smaller in the bevacizumab group than the control group at 9 and 13 d, although tumor size was not significantly different. CD31-positive areas were smaller in the bevacizumab group than the control group and correlated well with the ratio of intra-tumoral perfusion areas. CEUS with perflubutane was found to have potential for early prediction of the anti-cancer activity of bevacizumab, and the perfusion area measured by binarized ultrasound images could be used as an indicator.
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Affiliation(s)
- Rira Watanabe
- Translational Medicine & Clinical Pharmacology Department, Daiichi Sankyo Co., Ltd., Tokyo, Japan.
| | - Toshiko Munemasa
- Translational Medicine & Clinical Pharmacology Department, Daiichi Sankyo Co., Ltd., Tokyo, Japan
| | - Manabu Matsumura
- Translational Medicine & Clinical Pharmacology Department, Daiichi Sankyo Co., Ltd., Tokyo, Japan
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12
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Dahibawkar M, Forsberg MA, Gupta A, Jaffe S, Dulin K, Eisenbrey JR, Halldorsdottir VG, Forsberg AI, Dave JK, Marshall A, Machado P, Fox TB, Liu JB, Forsberg F. High and low frequency subharmonic imaging of angiogenesis in a murine breast cancer model. ULTRASONICS 2015; 62:50-5. [PMID: 25979676 PMCID: PMC4504767 DOI: 10.1016/j.ultras.2015.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/21/2015] [Accepted: 04/25/2015] [Indexed: 05/04/2023]
Abstract
This project compared quantifiable measures of tumor vascularity obtained from contrast-enhanced high frequency (HF) and low frequency (LF) subharmonic ultrasound imaging (SHI) to 3 immunohistochemical markers of angiogenesis in a murine breast cancer model (since angiogenesis is an important marker of malignancy and the target of many novel cancer treatments). Nineteen athymic, nude, female rats were implanted with 5×10(6) breast cancer cells (MDA-MB-231) in the mammary fat pad. The contrast agent Definity (Lantheus Medical Imaging, N Billerica, MA) was injected in a tail vein (dose: 180μl/kg) and LF pulse-inversion SHI was performed with a modified Sonix RP scanner (Analogic Ultrasound, Richmond, BC, Canada) using a L9-4 linear array (transmitting/receiving at 8/4MHz in SHI mode) followed by HF imaging with a Vevo 2100 scanner (Visualsonics, Toronto, ON, Canada) using a MS250 linear array transmitting and receiving at 24MHz. The radiofrequency data was filtered using a 4th order IIR Butterworth bandpass filter (11-13MHz) to isolate the subharmonic signal. After the experiments, specimens were stained for endothelial cells (CD31), vascular endothelial growth factor (VEGF) and cyclooxygenase-2 (COX-2). Fractional tumor vascularity was calculated as contrast-enhanced pixels over all tumor pixels for SHI, while the relative area stained over total tumor area was calculated from specimens. Results were compared using linear regression analysis. Out of 19 rats, 16 showed tumor growth (84%) and 11 of them were successfully imaged. HF SHI demonstrated better resolution, but weaker signals than LF SHI (0.06±0.017 vs. 0.39±0.059; p<0.001). The strongest overall correlation in this breast cancer model was between HF SHI and VEGF (r=-0.38; p=0.03). In conclusion, quantifiable measures of tumor neovascularity derived from contrast-enhanced HF SHI appear to be a better method than LF SHI for monitoring angiogenesis in a murine xenograft model of breast cancer (corresponding in particular to the expression of VEGF); albeit based on a limited sample size.
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Affiliation(s)
- Manasi Dahibawkar
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA; School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | | | - Aditi Gupta
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA; School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | | | - Kelly Dulin
- University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Valgerdur G Halldorsdottir
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA; School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Anya I Forsberg
- Plymouth-Whitemarsh High School, Plymouth Meeting, PA 19462, USA
| | - Jaydev K Dave
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Andrew Marshall
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA; School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Priscilla Machado
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Traci B Fox
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA; Department of Radiologic Sciences, Jefferson College of Health Professions, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA.
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13
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Eisenbrey JR, Merton DA, Marshall A, Liu JB, Fox TB, Sridharan A, Forsberg F. Comparison of photoacoustically derived hemoglobin and oxygenation measurements with contrast-enhanced ultrasound estimated vascularity and immunohistochemical staining in a breast cancer model. ULTRASONIC IMAGING 2015; 37:42-52. [PMID: 24652195 DOI: 10.1177/0161734614527435] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this preliminary study, we compared two noninvasive techniques for imaging intratumoral physiological conditions to immunohistochemical staining in a murine breast cancer model. MDA-MB-231 tumors were implanted in the mammary pad of 11 nude rats. Ultrasound and photoacoustic (PA) scanning were performed using a Vevo 2100 scanner (Visualsonics, Toronto, Canada). Contrast-enhanced ultrasound (CEUS) was used to create maximum intensity projections as a measure of tumor vascularity. PAs were used to determine total hemoglobin signal (HbT), oxygenation levels in detected blood (SO2 Avg), and oxygenation levels over the entire tumor area (SO2 Tot). Tumors were then stained for vascular endothelial growth factor (VEGF), cyclooxygenase-2 (Cox-2), and the platelet endothelial cell adhesion molecule CD31. Correlations between findings were analyzed using Pearson's coefficient. Significant correlation was observed between CEUS-derived vascularity measurements and both PA indicators of blood volume (r = 0.49 for HbT, r = 0.50 for SO2 Tot). Cox-2 showed significant negative correlation with SO2 Avg (r = -0.49, p = 0.020) and SO2 Tot (r = -0.43, p = 0.047), while CD31 showed significant negative correlation with CEUS-derived vascularity (r = -0.47, p = 0.036). However, no significant correlation was observed between VEGF expression and any imaging modality (p > 0.08). Photoacoustically derived HbT and SO2 Tot may be a good indicator of tumor fractional vascularity. While CEUS correlates with CD31 expression, photoacoustically derived SO2 Avg appears to be a better predictor of Cox-2 expression.
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Affiliation(s)
- John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Daniel A Merton
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Andrew Marshall
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Traci B Fox
- Department of Radiological Sciences, Jefferson School of Health Professions, Thomas Jefferson University, Philadelphia, PA, USA
| | - Anush Sridharan
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
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Forsberg F, Ro RJ, Marshall A, Liu JB, Chiou SY, Merton DA, Machado P, Dicker AP, Nazarian LN. The Antiangiogenic Effects of a Vascular Endothelial Growth Factor Decoy Receptor Can Be Monitored in Vivo Using Contrast-Enhanced Ultrasound Imaging. Mol Imaging 2014. [DOI: 10.2310/7290.2013.00073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Flemming Forsberg
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Raymond J. Ro
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Andrew Marshall
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Ji-Bin Liu
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - See-Ying Chiou
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Daniel A. Merton
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Priscilla Machado
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Adam P. Dicker
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Levon N. Nazarian
- From the Departments of Radiology and Radiation Oncology, Thomas Jefferson University, and School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
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Saini R, Hoyt K. Recent developments in dynamic contrast-enhanced ultrasound imaging of tumor angiogenesis. ACTA ACUST UNITED AC 2014; 6:41-52. [PMID: 25221623 DOI: 10.2217/iim.13.74] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Angiogenesis is a critical process for tumor growth and metastatic dissemination. There is tremendous interest in the development of noninvasive methods for imaging tumor angiogenesis, and ultrasound (US) is an emerging platform technology to address this challenge. The introduction of intravascular microbubble contrast agents not only allows real-time visualization of tumor perfusion during an US examination, but they can be functionalized with specific ligands to permit molecular US imaging of angiogenic biomarkers that are overexpressed on the tumor endothelium. In this article, we will review current concepts and developing trends for US imaging of tumor angiogenesis, including relevant preclinical and clinicsal findings.
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Affiliation(s)
- Reshu Saini
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA ; Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kenneth Hoyt
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA ; Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, USA ; Electrical & Computer Engineering, University of Alabama at Birmingham, Birmingham, AL, USA ; Comprehensive Cancer Center, University of Alabama at Birmingham, Volker Hall G082, 1670 University Boulevard, Birmingham, AL 35294, USA
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Forsberg F, Ro RJ, Marshall A, Liu JB, Chiou SY, Merton DA, Machado P, Dicker AP, Nazarian LN. The antiangiogenic effects of a vascular endothelial growth factor decoy receptor can be monitored in vivo using contrast-enhanced ultrasound imaging. Mol Imaging 2014; 13:1-9. [PMID: 24622811 PMCID: PMC4459598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
The development of antiangiogenic therapies has stimulated interest in noninvasive imaging methods to monitor response. We investigated whether the effects of a vascular endothelial growth factor decoy receptor (VEGF Trap, Regeneron Pharmaceuticals, Tarrytown, NY) could be monitored in vivo using contrast-enhanced ultrasonography (CEUS). Twenty nude mice (in two groups) were implanted with a human melanoma cell line (DB-1). The active group received VEGF Trap (4 × 25 mg/kg over 2 weeks), whereas the control group received an inactive protein. An ultrasound contrast agent was injected followed by power Doppler imaging (PDI) and pulse inversion harmonic imaging (PIHI; regular and intermittent). Specimens were sectioned in the same planes as the images and stained for endothelial cells (CD31), cyclooxygenase-2 (COX-2), VEGF, and hypoxia (Glut1). Measures of tumor vascularity obtained with the different imaging modes were compared to immunohistochemical markers of angiogenesis. Mean tumor volume was smaller in the active group than in the control group (656 ± 225 vs 1,160 ± 605 mm3). Overall, PDI and VEGF correlated (r = .34; p = .037). Vascularity decreased from control to treated mice with intermittent PIHI, as did the expression of CD31 and COX-2 (p ≤ .02), whereas VEGF increased (p = .05). CEUS appears to allow in vivo monitoring of the antiangiogenic effects of VEGF Trap in the DB-1 human melanoma xenograft model.
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Affiliation(s)
- Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
| | - Raymond J. Ro
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Andrew Marshall
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
| | - See-Ying Chiou
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
| | - Daniel A. Merton
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
| | - Priscilla Machado
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
| | - Adam P. Dicker
- Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, PA
| | - Levon N. Nazarian
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA
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17
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Eisenbrey JR, Wilson CC, Ro RJ, Fox TB, Liu JB, Chiou SY, Forsberg F. Correlation of ultrasound contrast agent derived blood flow parameters with immunohistochemical angiogenesis markers in murine xenograft tumor models. ULTRASONICS 2013; 53:1384-91. [PMID: 23659876 PMCID: PMC3696523 DOI: 10.1016/j.ultras.2013.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 04/04/2013] [Accepted: 04/04/2013] [Indexed: 05/08/2023]
Abstract
PURPOSE In this study we used temporal analysis of ultrasound contrast agent (UCA) estimate blood flow dynamics and demonstrate their improved correlation to angiogenesis markers relative to previously reported, non-temporal fractional vascularity estimates. MATERIALS AND METHODS Breast tumor (NMU) or glioma (C6) cells were implanted in either the abdomen or thigh of 144 rats. After 6, 8 or 10 days, rats received a bolus UCA injection of Optison (GE Healthcare, Princeton, NJ; 0.4 ml/kg) during power Doppler imaging (PDI), harmonic imaging (HI), and microflow imaging (MFI) using an Aplio ultrasound scanner with 7.5 MHz linear array (Toshiba America Medical Systems, Tustin, CA). Time-intensity curves of contrast wash-in were constructed on a pixel-by-pixel basis and averaged to calculate maximum intensity, time to peak, perfusion, and time integrated intensity (TII). Tumors were then stained for four immunohistochemical markers (bFGF, CD31, COX-2, and VEGF). Correlations between temporal parameters and the angiogenesis markers were investigated for each imaging mode. Effects of tumor model and implant location on these correlations were also investigated. RESULTS Significant correlation over the entire dataset was only observed between TII and VEGF for all three imaging modes (R=-0.35, -0.54, -0.32 for PDI, HI and MFI, respectively; p<0.0001). Tumor type and location affected these correlations, with the strongest correlation of TII to VEGF found to be with implanted C6 cells (R=-0.43, -0.54, -0.52 for PDI, HI and MFI, respectively; p<0.0002). CONCLUSIONS While UCA-derived temporal blood flow parameters were found to correlate strongly with VEGF expression, these correlations were also found to be influenced by both tumor type and implant location.
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Affiliation(s)
- John R. Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107
| | - Christian C. Wilson
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107
- College of Physicians and Surgeons, Columbia University, New York, NY 10032
| | - Raymond J. Ro
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107
- School of Biomedical Engineering, Sciences and Health Systems, Drexel University, Philadelphia, PA19104
| | - Traci B Fox
- Department of Radiological Sciences, Jefferson School of Health Professions, Thomas Jefferson University, Philadelphia, PA19107
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107
| | - See-Ying Chiou
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107
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18
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19
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Shen ZY, Shen E, Zhang JZ, Bai WK, Wang Y, Yang SL, Nan SL, Lin YD, Li Y, Hu B. Effects of low-frequency ultrasound and microbubbles on angiogenesis-associated proteins in subcutaneous tumors of nude mice. Oncol Rep 2013; 30:842-50. [PMID: 23707983 DOI: 10.3892/or.2013.2492] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 04/22/2013] [Indexed: 11/06/2022] Open
Abstract
It has been shown that 1 and 3 MHz low-intensity ultrasound was able to affect the fragile and leaky angiogenic blood vessels in a tumor. However, the biological effects of 21 kHz low-intensity ultrasound on tumors remain unclear. The aim of the present study was to explore the effects of 21 kHz ultrasound with microbubbles on the regulation of vascular endothelial growth factor (VEGF), cyclooxygenase-2 (COX-2) and apoptosis in subcutaneous prostate tumors in nude mice. The study included three parts, each with 20 tumor-bearing nude mice. Twenty nude mice were divided into four groups: control (sham treatment), microbubble ultrasound contrast agent (UCA), low-frequency ultrasound (US) and US+UCA groups. The UCA used was a microbubble contrast agent (SonoVue). The parameter of ultrasound: 21 kHz, an intensity of 26 mW/cm2, 40% duty cycle (on 2 sec, off 3 sec), 3 min, once every other day for 2 weeks. In the first study, all subcutaneous tumors were examined by contrast-enhanced ultrasonography (CEUS) at the initiation and completion of the experiments. Peak intensity (PI), time to peak intensity (TTP) and area under the curve (AUC) on the time intensity curve (TIC) were analyzed. In the second study, the intensity of VEGF and COX-2 protein expression in the vascular endothelium and cytoplasm was evaluated using immunohistochemistry and laser confocal microscopy. In the third study, terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay was used for the evaluation of cell apoptosis in tumor tissues. The tumor cells and vasculature were examined by transmission electron microscopy (TEM). Only in the US+UCA group, PI and AUC decreased. The intensity of COX-2 and VEGF in the US+UCA group in immunohistochemical staining and laser confocal microscopy was lower compared to that of the other three groups. More cell apoptosis was found in the US+UCA group compared to the other 3 groups. In the control, UCA and US groups, the tumors had intact vascular endothelium and vessel lumens in TEM. However, lumen occlusion of vessels was observed in the US+UCA group. Twenty-one kHz low-intensity ultrasound with microbubbles may have anti-angiogenic effects on subcutaneous tumors in nude mice.
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Affiliation(s)
- Zhi-Yong Shen
- Department of Ultrasound in Medicine, Shanghai Institute of Ultrasound in Medicine, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200233, PR China
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20
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Hoyt K, Sorace A, Saini R. Volumetric contrast-enhanced ultrasound imaging to assess early response to apoptosis-inducing anti-death receptor 5 antibody therapy in a breast cancer animal model. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2012; 31:1759-66. [PMID: 23091246 PMCID: PMC3560397 DOI: 10.7863/jum.2012.31.11.1759] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
OBJECTIVES The objective of this study was to determine whether volumetric contrast-enhanced ultrasound (US) imaging could detect early tumor response to anti-death receptor 5 antibody (TRA-8) therapy alone or in combination with chemotherapy in a preclinical triple-negative breast cancer animal model. METHODS Animal experiments had Institutional Animal Care and Use Committee approval. Thirty breast tumor-bearing mice were administered Abraxane (paclitaxel; Celgene Corporation, Summit, NJ), TRA-8, TRA-8 + Abraxane, or saline as a controlon days 0, 3, 7, 10, 14, and 17. Volumetric contrast-enhanced US imaging was performedon days 0, 1, 3, and 7 before dosing. Changes in parametric maps of tumor perfusion were compared with the tumor volume and immunohistologic findings. RESULTS Therapeutic efficacy was detected within 7 days after drug administration using parametric volumetric contrast-enhanced US imaging. Decreased tumor perfusion was observed in both the TRA-8-alone- and TRA-8 + Abraxane-dosed animals compared to control tumors (P = .17; P = .001, respectively). The reduction in perfusion observed in the TRA-8 + Abraxane group was matched with a corresponding regression in tumor size over the same period. Survival curves illustrate that the combination of TRA-8 + Abraxane improves drug efficacy compared to the same drugs administered alone. Immunohistologic analysis revealed increased levels of apoptotic activity in the TRA-8-dosed tumors, confirming enhanced antitumor effects. CONCLUSIONS Preliminary results are encouraging, and volumetric contrast-enhanced US-based tumor perfusion imaging may prove clinically feasible for detecting and monitoring the early antitumor effects in response to combination TRA-8 + Abraxane therapy.
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Affiliation(s)
- Kenneth Hoyt
- Department of Radiology, University of Alabama at Birmingham, G082 Volker Hall, 1670 University Blvd, Birmingham, AL 35294, USA.
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21
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Wood SC, Antony S, Brown RP, Chen J, Gordon EA, Hitchins VM, Zhang Q, Liu Y, Maruvada S, Harris GR. Effects of ultrasound and ultrasound contrast agent on vascular tissue. Cardiovasc Ultrasound 2012; 10:29. [PMID: 22805356 PMCID: PMC3493263 DOI: 10.1186/1476-7120-10-29] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 06/25/2012] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Ultrasound (US) imaging can be enhanced using gas-filled microbubble contrast agents. Strong echo signals are induced at the tissue-gas interface following microbubble collapse. Applications include assessment of ventricular function and virtual histology. AIM While ultrasound and US contrast agents are widely used, their impact on the physiological response of vascular tissue to vasoactive agents has not been investigated in detail. METHODS AND RESULTS In the present study, rat dorsal aortas were treated with US via a clinical imaging transducer in the presence or absence of the US contrast agent, Optison. Aortas treated with both US and Optison were unable to contract in response to phenylephrine or to relax in the presence of acetylcholine. Histology of the arteries was unremarkable. When the treated aortas were stained for endothelial markers, a distinct loss of endothelium was observed. Importantly, terminal deoxynucleotidyl transferase mediated dUTP nick-end-labeling (TUNEL) staining of treated aortas demonstrated incipient apoptosis in the endothelium. CONCLUSIONS Taken together, these ex vivo results suggest that the combination of US and Optison may alter arterial integrity and promote vascular injury; however, the in vivo interaction of Optison and ultrasound remains an open question.
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Affiliation(s)
- Steven C Wood
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Sible Antony
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
- School of Medicine and Health Sciences, The George Washington University, 2300, Eye Street, NW, Washington, DC, 20037, USA
| | - Ronald P Brown
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Jin Chen
- Food and Drug Administration, Center for Drug Evaluation and Research (CDER), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Edward A Gordon
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Victoria M Hitchins
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Qin Zhang
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Yunbo Liu
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Subha Maruvada
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Gerald R Harris
- Food and Drug Administration, Center for Devices and Radiological Health (CDRH), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
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Abstract
OBJECTIVE The goal of this research project was to develop a volumetric strategy for real-time monitoring and characterization of tumor blood flow using microbubble contrast agents and ultrasound (US) imaging. MATERIALS AND METHODS Volumetric contrast-enhanced US (VCEUS) imaging was implemented on a SONIX RP US system (Ultrasonix Medical Corp, Richmond, BC) equipped with a broadband 4DL14-5/38 probe. Using a microbubble-sensitive harmonic imaging mode (transducer transmits at 5 MHz and receives at 10 MHz), acquisition of postscan-converted VCEUS data was achieved at a volume rate of 1 Hz. After microbubble infusion, custom data processing software was used to derive microbubble time-intensity curve-specific parameters, namely, blood volume (IPK), transit time (T1/2PK), flow rate (SPK), and tumor perfusion (AUC). RESULTS Using a preclinical breast cancer animal model, it is shown that millimeter-sized deviations in transducer positioning can have profound implications on US-based blood flow estimators, with errors ranging from 6.4% to 40.3% and dependent on both degree of misalignment (offset) and particular blood flow estimator. These errors indicate that VCEUS imaging should be considered in tumor analyses, because they incorporate the entire mass and not just a representative planar cross-section. After administration of an antiangiogenic therapeutic drug (bevacizumab), tumor growth was significantly retarded compared with control tumors (P > 0.03) and reflects observed changes in VCEUS-based blood flow measurements. Analysis of immunohistologic data revealed no differences in intratumoral necrosis levels (P = 0.70), but a significant difference was found when comparing microvessel density counts in control with therapy group tumors (P = 0.05). CONCLUSIONS VCEUS imaging was shown to be a promising modality for monitoring changes in tumor blood flow. Preliminary experimental results are encouraging, and this imaging modality may prove clinically feasible for detecting and monitoring the early antitumor effects in response to cancer drug therapy.
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