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Your search keyword '"Ka-Wai Kwok"' showing total 4 results
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4 results on '"Ka-Wai Kwok"'

1. List of Contributors

Author

Jake J. Abbott, Mohammad H. Abedin-Nasab, Ahmad Abiri, Elnaz Afshari, Alireza Alamdar, Ali Alazmani, Oliver Anderson, Axel Andres, Maria Antico, Tan Arulampalam, Mahdi Azizian, Christos Bergeles, Per Bergman, James Bisley, Steven J. Blacker, Andrea Boni, Nicolas Christian Buchs, Turgut Bora Cengiz, Danny Tat-Ming Chan, Philip Wai Yan Chiu, Hyouk Ryeol Choi, Darko Chudy, Giovanni Cochetti, Ross Crawford, William Cross, Peter Culmer, Simon Daimios, Michel De Mathelin, Elena De Momi, Jacopo Adolfo Rossi De Vermandois, Domagoj Dlaka, John R. Dooley, Luka Drobilo, Erik Dutson, Thomas Erchinger, Zhencheng Fan, Richard Fanson, Farzam Farahmand, Zahra Faraji-Dana, Koorosh Faridpooya, Anthony Fernando, Davide Fontanarosa, Chee Wee Gan, Mathieu Garayt, Gianluca Gaudio, Emre Gorgun, Jon C. Gould, Vincent Groenhuis, Warren Grundfest, Ziyan Guo, Anjuli M. Gupta, Monika Hagen, Rana M. Higgins, Andre Hladio, Joe Hobeika, Iulian Iordachita, Anjali Jaiprakash, Branislav Jaramaz, David Jayne, Bojan Jerbić, Alexander H. Jinnah, Riyaz H. Jinnah, Kelly R. Johnson, Yaqub Jonmohamadi, Yen-Yi Juo, Marin Kajtazi, Jin U. Kang, John M. Keggi, Iman Khalaji, Warren Kilby, Uikyum Kim, Yong Bum Kim, Sujith Konan, Nicholas Kottenstette, Ka-Wai Kwok, Ka Chun Lau, Jeffrey M. Lawrence, Martin Chun-Wing Leong, Michael K.K. Leung, Yun Yee Leung, Changsheng Li, Wenyu Liang, Hongen Liao, Zhuxiu Liao, Chwee Ming Lim, Hsueh Yee Lim, May Liu, Longfei Ma, Carla Maden, Michael J. Maggitti, Adrian L.D. Mariampillai, Leonardo S. Mattos, Calvin R. Maurer, Ettore Mearini, Jamie Milas, Alireza Mirbagheri, Riddhit Mitra, Sara Moccia, Mehdi Moradi, Philippe Morel, George Moustris, Jeffrey Muir, Faisal Mushtaq, Florent Nageotte, M. Ali Nasseri, Mohan Nathan, Michael Naylor, Gordian U. Ndubizu, Cailin Ng, Daniel Oh, Yasushi Ohmura, Elena Oriot, Ajay K. Pandey, Theodore Pappas, Andrea Peloso, Jake Pensa, Veronica Penza, Christopher Plaskos, Wai-Sang Poon, Bogdan Protyniak, Liang Qiu, Andrew Razjigaev, Hongliang Ren, Cameron N. Riviere, Jonathan Roberts, Sheila Russo, Omid Saber, Marzieh S. Saeedi-Hosseiny, Dominique Saragaglia, Saeed Sarkar, Fumio Sasazawa, Sohail Sayeh, Bojan Šekoranja, William J. Sellers, Dong-Yeop Seok, Sami Shalhoub, Françoise J. Siepel, Saeed Sokhanvar, Jonathan Sorger, Beau A. Standish, Scott R. Steele, Ivan Stiperski, Stefano Stramigioli, Mario Strydom, Hao Su, Filip Šuligoj, Songping Sun, Marko Švaco, Raphael Sznitman, Masahiro Takahashi, Kok Kiong Tan, Anna Tao, Alex Todorov, Christian Toso, Morena Turco, Marija Turković, Costas Tzafestas, Emmanuel Vander Poorten, Josip Vidaković, Nikola Vitez, Andrea Volpin, Liao Wu, Yeung Yam, Victor X.D. Yang, Philippe Zanne, Adrian Žgaljić, Xinran Zhang, Lucile Zorn, and Ivan Župančić

Published
2020

2. Prospective Techniques for Magnetic Resonance Imaging–Guided Robot-Assisted Stereotactic Neurosurgery

Author

Ka-Wai Kwok, Wai Sang Poon, Martin C. W. Leong, Danny Tat Ming Chan, Ziyan Guo, and Hao Su

Subjects
medicine.medical_specialty, medicine.diagnostic_test, Computer science, business.industry, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Robotics, Magnetic resonance imaging, Imaging modalities, Workflow, medicine, Robot, Medical physics, Artificial intelligence, business, Stereotactic neurosurgery, Frameless stereotaxy
Abstract

Stereotactic neurosurgery involves a technique that can locate the brain targets using an external coordinate system. With the advancements of magnetic resonance imaging (MRI), numerous studies on frameless stereotaxy and MRI-guided/verified technique have been reported to improve the workflow and surgical outcomes. Intraoperative (intraop) MRI guidance in frameless techniques is an appealing method which could simplify workflow by reducing the coregistration errors in different imaging modalities and monitoring the surgical progress. Manually operated platforms thus emerge for MRI-guided frameless procedures. However, these procedures could still be complicated and time-consuming due to their intensive manual operation. To further simplify the procedure and enhance accuracy, robotics has been introduced. In this chapter, we review the state-of-the-art intraop MRI-guided robotic platforms for stereotactic neurosurgery. To improve surgical workflow and achieve greater clinical penetration, three key enabling techniques are discussed with emphasis on their current status, limitations, and future trends.

Published
2020

3. Introduction to robot-assisted minimally invasive surgery (MIS)

Author

Guang-Zhong Yang, Ka-Wai Kwok, and Valentina Vitiello

Subjects
Engineering, Tissue deformation, Medical robotics, business.industry, Invasive surgery, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Robot, Workspace, business, Image guidance, Simulation
Abstract

It is well recognised that the performance of minimally invasive surgery (MIS) imposes an increasing burden on surgeons’ manual dexterity and visuomotor control. Tissue deformation, restricted workspace, and a limited field-of-view make manual operation of the procedure difficult. With the advent of robot assisted MIS, manual dexterity is enhanced by microprocessor controlled mechanical wrists, allowing motion scaling and tremor removal. Further enhancement of three-dimensional (3D) vision and intra-operative image guidance permits improved clinical uptake of the technology, ensuring better operative safety and consistency. This chapter provides a detailed overview of robotic surgical systems and introduces recent developments in the integration of synergistic controls such as virtual fixtures, dynamic active constraints, and perceptual docking.

Published
2012

4. Angiopoietin-like 4 Increases Pulmonary Tissue Leakiness and Damage during Influenza Pneumonia

Author

Liang Li, Han Chung Chong, Say Yong Ng, Ka Wai Kwok, Ziqiang Teo, Eddie Han Pin Tan, Chee Chong Choo, Ju Ee Seet, Hyung Won Choi, Martin Lindsay Buist, Vincent Tak Kwong Chow, and Nguan Soon Tan

Subjects
Biology (General), QH301-705.5
Abstract

Excessive host inflammatory responses negatively impact disease outcomes in respiratory infection. Host-pathogen interactions during the infective phase of influenza are well studied, but little is known about the host’s response during the repair stage. Here, we show that influenza infection stimulated the expression of angiopoietin-like 4 (ANGPTL4) via a direct IL6-STAT3-mediated mechanism. ANGPTL4 enhanced pulmonary tissue leakiness and exacerbated inflammation-induced lung damage. Treatment of infected mice with neutralizing anti-ANGPTL4 antibodies significantly accelerated lung recovery and improved lung tissue integrity. ANGPTL4-deficient mice also showed reduced lung damage and recovered faster from influenza infection when compared to their wild-type counterparts. Retrospective examination of human lung biopsy specimens from infection-induced pneumonia with tissue damage showed elevated expression of ANGPTL4 when compared to normal lung samples. These observations underscore the important role that ANGPTL4 plays in lung infection and damage and may facilitate future therapeutic strategies for the treatment of influenza pneumonia.

Published
2015
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