Computer‐aided porous implant design for cranio‐maxillofacial defect restoration

Wang, Enpeng; Shi, Hong; Sun, Yi; Politis, Constantinus; Liu, Lin; Chen, Xiaojun

doi:10.1002/rcs.2134

Cited by 10 publications

(1 citation statement)

References 24 publications

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“…It takes more time to transmit the data with minimum antennas, and an ideal methodology can be used to improve the antenna performance. Te abovementioned limitations can be overwhelmed by implementing multiple-input multipleoutput (MIMO) antennas [3]. Although the usage of the MIMO antenna accomplishes higher isolation standards and a common correlation efect, two crucial things have to be considered when designing a MIMO antenna [4].…”

Section: Introductionmentioning

confidence: 99%

An Isolation Improvement for Closely Spaced MIMO Antenna Using λ/4 Distance for WLAN Applications

Suganya¹,

Prabhu

Palanisamy³

et al. 2023

International Journal of Antennas and Propagation

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An isolation improvement for a closely spaced quad port multiple-input multiple-output (MIMO) antenna for WLAN applications is presented. The proposed antenna consists of four L-shaped monopole microstrip patch antennas with a rectangular slot at the center and truncated edges at the corner of each patch element. Interelement isolation is improved by more than 12 dB by considering the patch size, ground size, and distance between the patch elements. The designed antenna uses λ/4 distance between the patch elements. The slot in each patch improves the bandwidth, and truncated edges at the corner of the patch improve the impedance matching of the antenna. The proposed MIMO antenna is designed with the overall dimensions of 45.5 mm × 45.5 mm × 1.96 mm. The MIMO parameters for the proposed technique, which include envelope correlation coefficient (E.C.C.) are less than 0.5, and the diversity gain (D.G.) is 10 dB, suggesting this antenna’s suitability for MIMO operations. The average peak realized gain (A.P.R.G.) and radiation efficiency (RE) is 2.8 dBi and greater than 80% for the prescribed band of interest. The antenna element is fabricated and tested using microwave analyzer N9917A. The measured result seems to be in good contact with the simulation. The proposed MIMO antenna is well-suitable for WLAN applications.

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Section: Introductionmentioning

confidence: 99%

An Isolation Improvement for Closely Spaced MIMO Antenna Using λ/4 Distance for WLAN Applications

Suganya¹,

Prabhu

Palanisamy³

et al. 2023

International Journal of Antennas and Propagation

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What is the evidence for clinical use of advanced technology in unicompartmental knee arthroplasty?

Mittal

Meshram

Kim³

2021

Robotics Computer Surgery

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Background: With an aim of improving prosthesis survivorship of unicompartmental knee arthroplasty (UKA), use of computer-assisted technologies (CATs) such as robotics, has been on the rise to reduce intraoperative errors in surgical technique.In light of recent influx of CATs in the UKA, a review of these innovations will help providers to understand their clinical utility.Method: A systematic literature search was performed following Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines.Results: Among 19 studies comparing robot-assisted UKA with conventional UKA, only 32% were randomized control trials, 47% reported minimum mean follow-up of 2 years, and 21% evaluated prosthesis survival. Similar results were obtained for navigation-assisted UKA and UKA performed with patient-specific instrumentation. Conclusion:While CATs seem to reduce the surgical errors in UKA, the evidence on the efficacy of any of the studied CATs to improve survivorship remains limited and there are issues related to cost-effectiveness, learning curve, and increase in operating time.

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Fusion of multimodality image and point cloud for spatial surface registration for knee arthroplasty

Liu

Yao

Zhai

et al. 2022

Robotics Computer Surgery

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Background Image‐guided computer‐aided navigation system is an indispensable part of computer assisted orthopaedic surgery. However, the location and number of fiducial markers, the time required to localise fiducial markers in existing systems affect their effectiveness. Method The study proposed that spatial surface registration between the point cloud on the surface of the fusion model based on preoperative knee MRI and CT images and the point cloud on the cartilage surface captured by intraoperative laser scanner could solve the above limitations. Results The experimental results show that the registration error of the method is less than 2 mm, but the total time from scanning the point cloud on patient's cartilage surface to registering it with the point cloud in preoperative image space is less than 2 min. Conclusion The method achieves the registration accuracy similar to existing methods without selecting anatomical corresponding points, which is of great help to the clinic.

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Computer‐aided porous implant design for cranio‐maxillofacial defect restoration

Cited by 10 publications

References 24 publications

An Isolation Improvement for Closely Spaced MIMO Antenna Using λ/4 Distance for WLAN Applications

An Isolation Improvement for Closely Spaced MIMO Antenna Using λ/4 Distance for WLAN Applications

What is the evidence for clinical use of advanced technology in unicompartmental knee arthroplasty?

Fusion of multimodality image and point cloud for spatial surface registration for knee arthroplasty

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