Article
Computer Science, Artificial Intelligence
Yinran Chen, Zichen Zhuang, Jianwen Luo, Xiongbiao Luo
Summary: In this study, we propose a new 3D motion compensation (MoCo) framework that combines 3D velocity field estimation and a two-step compensation strategy for 3D diverging wave compounding imaging. Our framework formulates the estimation of 3D velocity fields as a global optimization problem by exploring the constraints of a round-trip scan sequence of 3D diverging waves, i.e., Doppler and pair-wise optical flow, and further regularization by divergence-free and first-order smoothness. The two-step compensation strategy compensates for 1D and 2D displacements, resulting in higher image contrast, higher structural similarity, and better speckle patterns compared to the corresponding 1D-MoCo method.
IEEE TRANSACTIONS ON IMAGE PROCESSING
(2023)
Article
Multidisciplinary Sciences
Samantha J. Paulsen, Trevor M. Mitcham, Charlene S. Pan, James Long, Bagrat Grigoryan, Daniel W. Sazer, Collin J. Harlan, Kevin D. Janson, Mark D. Pagel, Jordan S. Miller, Richard R. Bouchard
Summary: Modern ultrasound imaging is becoming increasingly clinically impactful, especially with the introduction of US-based quantitative imaging biomarkers. Researchers have successfully fabricated US phantoms using 3D printing technology, allowing for customizable models with different hardness, structure, and fluid transport functions, which will enhance the customization and complexity of ultrasound imaging models.
Article
Engineering, Multidisciplinary
Felipe Galarce, Jean-Frederic Gerbeau, Damiano Lombardi, Olga Mula
Summary: This paper discusses the problem of reconstructing blood flows using Doppler ultrasound measurements and introduces a fast and reliable method. The study found that constructing reduced spaces better adapted to the reconstruction task can improve the performance of the algorithm.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2021)
Article
Endocrinology & Metabolism
Zhenyan Han, Yuan Zhang, Xuelan Li, Wei-Hsiu Chiu, Yuzhu Yin, Hongying Hou
Summary: This study compared placental volume (PV) and vascular indices between pregnant women with and without gestational diabetes mellitus (GDM) using three-dimensional (3D) Power Doppler ultrasound. Results showed significant differences in PV, vascularization index (VI), flow index (FI), and vascularization flow index (VFI) between the two groups. Combining maternal age, gravida, PV, and VFI may be a more accurate marker for detecting GDM.
FRONTIERS IN ENDOCRINOLOGY
(2021)
Article
Engineering, Biomedical
Adrian J. Y. Chee, Takuro Ishii, Billy Y. S. Yiu, Alfred C. H. Yu
Summary: A new omnidirectional, three-component flow phantom was designed to evaluate the performance of 3D flow imaging techniques, with its accuracy and reliability confirmed through the flow trajectory within the helical toroid structure and various experimental methods. The phantom showed good agreement with computational fluid dynamics results in terms of flow rate measurements and three-component velocity vectors.
PHYSICS IN MEDICINE AND BIOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Nagyum Kim, Cheolpyo Hong, Changwoo Lee, Hyo-Min Cho
Summary: The aim of this study was to create a Doppler ultrasound training phantom to help beginners understand and effectively use critical parameters. The training phantom designed does not require a water pump or automated injector. Agarose gel was used to fabricate the vessel-mimicking phantom, with LEGO blocks introducing a height difference to simulate blood flow. The fabricated phantom offers the advantage of adjusting vessel diameter during the fabrication process and modifying vascular components for specific conditions.
APPLIED SCIENCES-BASEL
(2023)
Article
Multidisciplinary Sciences
Daniel P. G. Nilsson, Madelene Holmgren, Petter Holmlund, Anders Wahlin, Anders Eklund, Tobias Dahlberg, Krister Wiklund, Magnus Andersson
Summary: In this study, a cost- and time-efficient method for creating patient-specific 3D phantom models using a low-cost 3D printer and water-soluble resin is proposed. The method was validated by comparing the created models with patient data using MRI, showing good agreement and smooth surfaces for the arteries. However, there are limitations in reproducing sharp features.
SCIENTIFIC REPORTS
(2022)
Article
Acoustics
Fatmah Alablani, Justyna Janus, Edward Pallett, Toni M. Mullins, Alanoud Almudayni, Emma M. L. Chung
Summary: Recent evidence suggests that there may be differences in velocity estimates between transcranial Doppler (TCD) systems when measuring high velocities near the threshold for sickle cell disease stroke prevention. A study developed a middle cerebral artery (MCA) flow phantom to evaluate velocity estimates from different devices. The results showed that the DWL system consistently gave higher readings than the Spencer system, especially at high velocities.
ULTRASOUND IN MEDICINE AND BIOLOGY
(2022)
Article
Physics, Multidisciplinary
Muhammad Shiddiq Sayyid Hashuro, Kotaro Daibo, Takuro Ishii, Yoshifumi Saijo, Makoto Ohta
Summary: Abnormal blood flow can be detected through transcranial Doppler (TCD) ultrasound by measuring blood velocity in cerebral arteries. This study quantitatively demonstrates the impact of angular mismatch on velocity measurements in TCD, compared with optical particle image velocimetry (PIV) as control. The results indicate that angular mismatch leads to inaccurate velocity measurements in TCD.
FRONTIERS IN PHYSICS
(2023)
Article
Acoustics
Eun Young Chae, Ga Young Yoon, Joo Hee Cha, Hee Jung Shin, Woo Jung Choi, Hak Hee Kim
Summary: The vascular index (VI) on Superb Microvascular Imaging (SMI) was found to be significantly higher for malignant breast masses compared to benign lesions, with high interobserver agreement. Therefore, the combination of grayscale US and SMI with VI may improve the characterization of breast masses.
JOURNAL OF ULTRASOUND IN MEDICINE
(2021)
Article
Medicine, General & Internal
Gabor Baksa, Kalman Czeibert, Veronika Sharp, Stephan Handschuh, Janos Gyebnar, Laszlo Barany, Szabolcs Benis, Gabor Nyiri, Peter Mandl, Ors Petnehazy, Peter Vince Balint
Summary: This study provides a detailed description and comparison of the arterial vasculature of metacarpophalangeal joints 2-5 in healthy individuals using cadaver specimens and ultrasound imaging. The results show the arterial supply pattern and the exact anatomical location of normal vessels. Doppler signals were detected at a lower frequency in healthy joints, except MCP 2-3 joints which had more intraarticular vessels. Measurements using ultrasound were larger than those on cadaver vessels. This study provides important reference data for future high-resolution imaging techniques.
FRONTIERS IN MEDICINE
(2022)
Article
Dentistry, Oral Surgery & Medicine
M. J. Yoon, D. H. Kim, I. Y. Jung, S. H. Park
Summary: A laboratory-based tooth model was developed to simulate blood flow in teeth and evaluated using ultrasound Doppler flowmetry. Results showed that simulated blood flow could be detected below the CEJ level, but not at the mid-root level.
INTERNATIONAL ENDODONTIC JOURNAL
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Ankit Sangwan, Ankur Goyal, Atin Kumar, Raju Sharma, Ashu Seith Bhalla, Devasenathipathy Kandasamy, Sudheer Arava, Maneesh Singhal, Sujay Khandpur
Summary: CEUS is useful in characterizing different types of soft-tissue vascular anomalies, increasing the diagnostic accuracy and confidence over Doppler-ultrasound.
EUROPEAN JOURNAL OF RADIOLOGY
(2022)
Article
Automation & Control Systems
Dario Russo, Stefano Ricci
Summary: This article introduces an innovative flow emulator board (FEB) that can simulate programmable velocity profiles with known characteristics. It can replace traditional flow rigs for testing pulsed wave Doppler methods and electronic systems.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Maciej Sabiniok, Krzysztof J. Opielinski
Summary: This paper explores the implementation of a universal attachment for conventional ultrasound scanners, allowing for rapid, safe, and automatic three-dimensional ultrasound imaging of the female breast. The study shows that tilted and shifted probes can improve image quality and scanning area, highlighting the advantages of a relatively simple convex probe over more advanced devices.
APPLIED SCIENCES-BASEL
(2022)
Article
Acoustics
M. Prior, A. Richardson, S. Asif, L. Polanski, M. Parris-Larkin, J. Chandler, L. Fogg, P. Jassal, J. G. Thornton, N. J. Raine-Fenning
ULTRASOUND IN OBSTETRICS & GYNECOLOGY
(2018)
Correction
Acoustics
A. Khalil, M. Rodgers, A. Baschat, A. Bhide, E. Gratacos, K. Hecher, M. D. Kilby, L. Lewi, K. H. Nicolaides, D. Oepkes, N. Raine-Fenning
ULTRASOUND IN OBSTETRICS & GYNECOLOGY
(2018)
Article
Obstetrics & Gynecology
Edward Coats, Hannah Carden, Lyndsey Zujovic, Walid Maalouf, James Hopkisson, Nicholas Raine-Fenning
Article
Medicine, General & Internal
Rima K. Dhillon-Smith, Lee J. Middleton, Kirandeep K. Sunner, Versha Cheed, Krys Baker, Samantha Farrell-Carver, Ruth Bender-Atik, Rina Agrawal, Kalsang Bhatia, Edmond Edi-Osagie, Tarek Ghobara, Pratima Gupta, Davor Jurkovic, Yacoub Khalaf, Marjory MacLean, Christopher McCabe, Khashia Mulbagal, Natalie Nunes, Caroline Overton, Siobhan Quenby, Raj Rai, Nick Raine-Fenning, Lynne Robinson, Jackie Ross, Andrew Sizer, Rachel Small, Alex Tan, Martyn Underwood, Mark D. Kilby, Kristien Boelaert, Jane Daniels, Shakila Thangaratinam, Shiao Y. Chan, Arri Coomarasamy
NEW ENGLAND JOURNAL OF MEDICINE
(2019)
Article
Obstetrics & Gynecology
Amal Mohammed, Kathryn J. Woad, George E. Mann, Jim Craigon, Nick Raine-Fenning, Robert S. Robinson
FERTILITY AND STERILITY
(2019)
Article
Public, Environmental & Occupational Health
Abha Maheshwari, Siladitya Bhattacharya, Ursula Bowler, Daniel Brison, Tim Child, Christina Cole, Arri Coomarasamy, Rachel Cutting, Stephen Harbottle, Pollyanna Hardy, Edmund Juszczak, Yacoub Khalaf, Jennifer J. Kurinczuk, Stuart Lavery, Clare Lewis-Jones, Nick Macklon, Nick J. Raine-Fenning, Madhurima Rajkohwa, Graham Scotland, Stephen Troup
REPRODUCTIVE HEALTH
(2019)
Article
Endocrinology & Metabolism
Rima K. Dhillon-Smith, Aurelio Tobias, Paul P. Smith, Lee J. Middleton, Kirandeep K. Sunner, Krystyna Baker, Samantha Farrell-Carver, Ruth Bender-Atik, Rina Agrawal, Kalsang Bhatia, Justin J. Chu, Edmond Edi-Osagie, Ayman Ewies, Tarek Ghobara, Pratima Gupta, Davor Jurkovic, Yacoub Khalaf, Khashia Mulbagal, Natalie Nunes, Caroline Overton, Siobhan Quenby, Raj Rai, Nick Raine-Fenning, Lynne Robinson, Jackie Ross, Andrew Sizer, Rachel Small, Martyn Underwood, Mark D. Kilby, Jane Daniels, Shakila Thangaratinam, Shiao Chan, Kristien Boelaert, Arri Coomarasamy
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2020)
Article
Public, Environmental & Occupational Health
Nicky Hudson, Caroline Law, Lorraine Culley, Helene Mitchell, Elaine Denny, Wendy Norton, Nick Raine-Fenning
SOCIOLOGY OF HEALTH & ILLNESS
(2020)
Article
Public, Environmental & Occupational Health
Nicky Hudson, Caroline Law, Lorraine Culley, Helene Mitchell, Elaine Denny, Nick Raine-Fenning
Review
Medicine, General & Internal
Laurentiu Craciunas, Nikolaos Tsampras, Nick Raine-Fenning, Arri Coomarasamy
COCHRANE DATABASE OF SYSTEMATIC REVIEWS
(2018)
Meeting Abstract
Obstetrics & Gynecology
M. Prior, J. Hopkisson, N. Raine-Fenning
HUMAN REPRODUCTION
(2018)
Meeting Abstract
Obstetrics & Gynecology
I. Sfontouris, A. Patelakis, G. Panitsa, S. Theodoratos, N. Raine-Fenning
HUMAN REPRODUCTION
(2018)
Meeting Abstract
Obstetrics & Gynecology
M. Gaudoin, P. Sim, H. Smith, R. Fleming, L. Zujovic, N. Raine-Fenning
HUMAN REPRODUCTION
(2018)
Meeting Abstract
Obstetrics & Gynecology
S. Asif, H. AlAhwany, P. Bhave Chittawar, M. P. Nigdelis, K. A. Toulis, D. G. Goulis, R. Kirubakaran, N. Raine-Fenning, S. Seshadri, T. Child, I. E. Granne
HUMAN REPRODUCTION
(2018)
Review
Medicine, General & Internal
Danielle M. Teixeira, Andre H. Miyague, Mariana A. P. Barbosa, Paula A. Navarro, Nick Raine-Fenning, Carolina O. Nastri, Wellington P. Martins
COCHRANE DATABASE OF SYSTEMATIC REVIEWS
(2020)