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385 results on '"Tse, Zion Tsz Ho"'

1. Orimimetic Folds into Deployable Mechanisms with Potential Functionalities in Biomedical Robotics

Author

Liu, Hannah, Yeow, Bok Seng, Cai, Catherine Jiayi, Tse, Zion Tsz Ho, Ren, Hongliang, Lovell, Nigel H., Advisory Editor, Oneto, Luca, Advisory Editor, Piotto, Stefano, Advisory Editor, Rossi, Federico, Advisory Editor, Samsonovich, Alexei V., Advisory Editor, Babiloni, Fabio, Advisory Editor, Liwo, Adam, Advisory Editor, Magjarevic, Ratko, Advisory Editor, and Ren, Hongliang

Published
2023
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8. Design of a Square Rotor Driven Pneumatic Stepper Actuator for MR-Guided Therapy

Author

Liang, Haipeng, Zuo, Wanli, and Tse, Zion Tsz Ho

Abstract

Magnetic resonance (MR) imaging has been widely used in the diagnostics and treatment of soft tissues due to its ability to acquire high-resolution images with outstanding contrast. Therefore, MR-guided therapy and its supporting equipment, including MR-conditional sensors and actuators, have been developed rapidly. In this article, a nonmagnetic pneumatic stepper motor was developed. The working principle was analyzed, and the theoretical static output torque was expressed mathematically. The driven part of the proposed design is a polygon rotor derived from the Wankel engine. Besides, the outline of the inner wall of the housing was investigated. Experiments were conducted with the motor functioning at different speeds under different air pressures; by controlling the air in each chamber sequentially, the rotor can rotate continuously in dual directions with a torque of up to 38 mN·m and a maximum speed of 400 r/min. The MR test showed that no image artifact was found.

Published
2024
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20. EgoActive: Integrated Wireless Wearable Sensors for Capturing Infant Egocentric Auditory–Visual Statistics and Autonomic Nervous System Function ‘in the Wild’

Author

Geangu, Elena, primary, Smith, William A. P., additional, Mason, Harry T., additional, Martinez-Cedillo, Astrid Priscilla, additional, Hunter, David, additional, Knight, Marina I., additional, Liang, Haipeng, additional, del Carmen Garcia de Soria Bazan, Maria, additional, Tse, Zion Tsz Ho, additional, Rowland, Thomas, additional, Corpuz, Dom, additional, Hunter, Josh, additional, Singh, Nishant, additional, Vuong, Quoc C., additional, Abdelgayed, Mona Ragab Sayed, additional, Mullineaux, David R., additional, Smith, Stephen, additional, and Muller, Bruce R., additional

Published
2023
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38. MR Compatible Tactile Sensing and Noise Analysis in a 1.5 Tesla MR System

Author

Hamed, Abbi, Tse, Zion Tsz Ho, Young, Ian, Lamperth, Michael, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Dohi, Takeyoshi, editor, Sakuma, Ichiro, editor, and Liao, Hongen, editor

Published
2008
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39. A MR Compatible Mechatronic System to Facilitate Magic Angle Experiments in Vivo

Author

Elhawary, Haytham, Zivanovic, Aleksandar, Rea, Marc, Tse, Zion Tsz Ho, McRobbie, Donald, Young, Ian, Paley, Martyn, Davies, Brian, Lampérth, Michael, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ayache, Nicholas, editor, Ourselin, Sébastien, editor, and Maeder, Anthony, editor

Published
2007
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44. Monitoring Different Social Media Platforms to Report Unplanned School Closures Due to Wildfires in California, October and December 2017

Author

Buchanan, Brittany M., primary, Evans, Haley I., additional, Chukwudebe, Ngozi P., additional, Duncan, Emily A., additional, Yin, Jingjing, additional, Adhikari, Bishwa B., additional, Zhou, Xiaolu, additional, Tse, Zion Tsz Ho, additional, Chowell, Gerardo, additional, Meltzer, Martin I., additional, and Fung, Isaac Chun-Hai, additional

Published
2022
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49. Engineering functional and anthropomorphic models for surgical training in interventional radiology: A state-of-the-art review.

Author

Zhao, Zhuo, Ma, Yangmyung, Mushtaq, Adeel, Radhakrishnan, Vignesh, Hu, Yihua, Ren, Hongliang, Song, Wenzhan, and Tse, Zion Tsz Ho

Abstract

Training medical students in surgical procedures and evaluating their performance are both necessary steps to ensure the safety and efficacy of surgeries. Traditionally, trainees practiced on live patients, cadavers or animals under the supervision of skilled physicians, but realistic anatomical phantom models have provided a low-cost alternative because of the advance of material technology that mimics multi-layer tissue structures. This setup provides safer and more efficient training. Many research prototypes of phantom models allow rapid in-house prototyping for specific geometries and tissue properties. The gel-based method and 3D printing-based method are two major methods for developing phantom prototypes. This study excluded virtual reality based technologies and focused on physical phantoms, total 189 works published between 2015 and 2020 on anatomical phantom prototypes made for interventional radiology were reviewed in terms of their functions and applications. The phantom prototypes were first categorized based on fabrication methods and then subcategorized based on the organ or body part they simulated; the paper is organized accordingly. Engineering specifications and applications were analyzed and summarized for each study. Finally, current challenges in the development of phantom models and directions for future work were discussed. [ABSTRACT FROM AUTHOR]

Published
2023
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50. MR conditional prostate intervention systems and actuations review.

Author

Liang, Haipeng and Tse, Zion Tsz Ho

Abstract

Magnetic resonance imaging (MRI) has the ability to provide high-resolution images of soft tissues without the use of radiation. So much research has been focused on the development of actuators and robotic devices that can be used in the MRI environment so "real-time" images can be obtained during surgeries. With real-time guidance from MRI, robots can perform surgical procedures with high accuracy and through less invasive routes. This technique can also significantly reduce the operation time and simplify pre-surgical procedures. Therefore, research on robot-assisted MRI-guided prostate intervention has attracted a great deal of interest, and several successful clinical trials have been published in recent years, pointing to the great potential of this technology. However, the development of MRI-guided robots is still in the primary stage, and collaboration between researchers and commercial suppliers is still needed to improve such robot systems. This review presents an overview of MRI-guided prostate intervention devices and actuators. Additionally, the expected technical challenges and future advances in this field are discussed. [ABSTRACT FROM AUTHOR]

Published
2023
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