https://scholars.lib.ntu.edu.tw/handle/123456789/611436
標題: | MRI-guided targeted needle placement during motion using hydrostatic actuators | 作者: | Mikaiel S. Simonelli J. Li X. Lee Y.-H. Lee Y.S. Sung K. Lu D.S. Tsao T.-C. Wu H.H. YU-HSIU LEE |
關鍵字: | Article;controlled study;feasibility study;hydrostatic actuator system;image guided biopsy;image quality;intermethod comparison;interventional radiology;magnetic resonance imaging guided targeted needle placement;motion;nuclear magnetic resonance imaging;process design;time;algorithm;breathing;computer assisted surgery;equipment design;human;imaging phantom;interventional magnetic resonance imaging;needle;procedures;reproducibility;robotics;signal noise ratio;Algorithms;Equipment Design;Humans;Magnetic Resonance Imaging, Interventional;Motion;Needles;Phantoms, Imaging;Reproducibility of Results;Respiration;Robotics;Signal-To-Noise Ratio;Surgery, Computer-Assisted | 公開日期: | 2020 | 卷: | 16 | 期: | 2 | 來源出版物: | International Journal of Medical Robotics and Computer Assisted Surgery | 摘要: | Background: Magnetic resonance imaging (MRI) has unique advantages for guiding interventions, but the narrow space is a major challenge. This study evaluates the feasibility of a remote-controlled hydrostatic actuator system for MRI-guided targeted needle placement. Methods: The effects of the hydrostatic actuator system on MR image quality were evaluated. Using a reference step-and-shoot method (SS) and the proposed actuator-assisted method (AA), two operators performed MRI-guided needle placement in targets (n = 12) in a motion phantom. Results: The hydrostatic actuator system exhibited negligible impact on MR image quality. In dynamic targets, AA was significantly more accurate and precise than SS, with mean ± SD needle-to-target error of 1.8 ± 1.0 mm (operator 1) and 1.3 ± 0.5 mm (operator 2). AA reduced the insertion time by 50% to 80% and total procedure time by 25%, compared to SS. Conclusions: The proposed hydrostatic actuator system may improve accuracy and reduce procedure time for MRI-guided targeted needle placement during motion. ? 2019 John Wiley & Sons, Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078721089&doi=10.1002%2frcs.2041&partnerID=40&md5=96e664993fccf6348513a2a0b8305849 https://scholars.lib.ntu.edu.tw/handle/123456789/611436 |
DOI: | 10.1002/rcs.2041 |
顯示於: | 機械工程學系 |
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