Augmented Reality for Assistance of Total Knee Replacement

Castillo, Daniel; Ramos, Olga

doi:10.1155/2016/9358369

Cited by 10 publications

(10 citation statements)

References 19 publications

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“…Fluoroscopy has been used and considered the standard technique for percutaneous visualization 1 . However, the consistent advancement of three‐dimensional (3D) imaging and modelling, combined with visualization, has altogether improved the exactness of percutaneous knee surgery 2 . The traditional method based on CT slides does not allow surgeons for the mobility of handling surgical tools in terms of the vision of the internal organs.…”

Section: Introductionmentioning

confidence: 99%

A novel visualization system of using augmented reality in knee replacement surgery: Enhanced bidirectional maximum correntropy algorithm

Maharjan

Alsadoon

Prasad

et al. 2021

Robotics Computer Surgery

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Background and Aim Image registration and alignment are the main limitations of augmented reality (AR)‐based knee replacement surgery. This research aims to decrease the registration error, eliminate outcomes that are trapped in local minima to improve the alignment problems, handle the occlusion and maximize the overlapping parts. Methodology Markerless image registration method was used for AR‐based knee replacement surgery to guide and visualize the surgical operation. While weight least square algorithm was used to enhance stereo camera‐based tracking by filling border occlusion in right‐to‐left direction and non‐border occlusion from left‐to‐right direction. Results This study has improved video precision to 0.57–0.61 mm alignment error. Furthermore, with the use of bidirectional points, that is, forward and backward directional cloud point, the iteration on image registration was decreased. This has led to improve the processing time as well. The processing time of video frames was improved to 7.4–11.74 frames per second. Conclusions It seems clear that this proposed system has focused on overcoming the misalignment difficulty caused by the movement of patient and enhancing the AR visualization during knee replacement surgery. The proposed system was reliable and favourable which helps in eliminating alignment error by ascertaining the optimal rigid transformation between two cloud points and removing the outliers and non‐Gaussian noise. The proposed AR system helps in accurate visualization and navigation of anatomy of knee such as femur, tibia, cartilage, blood vessels and so forth.

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Section: Introductionmentioning

confidence: 99%

A novel visualization system of using augmented reality in knee replacement surgery: Enhanced bidirectional maximum correntropy algorithm

Maharjan

Alsadoon

Prasad

et al. 2021

Robotics Computer Surgery

View full text Add to dashboard Cite

show abstract

“…Fluoroscopy has been used and considered the standard technique for percutaneous visualization [1]. However, the consistent advancement of 3D imaging and modelling, combined with visualization, has altogether improved the exactness of percutaneous knee surgery [2]. The traditional method based on Computed Tomography (CT) slides does not allow surgeons for the mobility of handling surgical tools in terms of a vision of the internal organs.…”

Section: Introductionmentioning

confidence: 99%

A Novel Visualization System of Using Augmented Reality in Knee Replacement Surgery: Enhanced Bidirectional Maximum CorrentropyAlgorithm

Maharjan

Alsadoon

Prasad

et al. 2020

Robotics Computer Surgery

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Background and aim: Image registration and alignment are the main limitations of augmented realitybased knee replacement surgery. This research aims to decrease the registration error, eliminate outcomes that are trapped in local minima to improve the alignment problems, handle the occlusion and maximize the overlapping parts. Methodology: markerless image registration method was used for Augmented reality-based knee replacement surgery to guide and visualize the surgical operation. While weight least square algorithm was used to enhance stereo camera-based tracking by filling border occlusion in right to left direction and non-border occlusion from the left to right direction. Results: This study has improved video precision to 0.57 mm ~ 0.61 mm alignment error. Furthermore, with the use of bidirectional points, i.e. Forwards and backward directional cloud points, the iteration on image registration was decreased. This has led to the improved processing time as well. The processing time of video frames was improved to 7.4 ~11.74 fps. Conclusions: It seems clear that this proposed system has focused on overcoming the misalignment difficulty caused by the movement of the patient and enhancing the AR visualization during knee replacement surgery. The proposed system was reliable and favorable which helps in eliminating alignment error by ascertaining the optimal rigid transformation between two cloud points and removing the outliers and non-Gaussian noise. The proposed augmented reality system helps in accurate visualization and navigation of anatomy of the knee such as femur, tibia, cartilage, blood vessels, etc.

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“…For example, in a driving scenario, virtual arrows and warnings can be presented onto a road in the real world to navigate users and to avoid traffic accidents (Rusch et al, 2013; Schwarz and Fastenmeier, 2017; Uchida et al, 2017; Schömig et al, 2018). Moreover, AR can be used for supporting medical surgery (Shuhaiber, 2004; Dixon et al, 2013; Castillo and Olga, 2016), presenting historical sites (Ikeuchi, 2013), and enhancing entertainment-based applications (Joseph and Armstrong, 2016).…”

Section: Introductionmentioning

confidence: 99%

Monocular Presentation Attenuates Change Blindness During the Use of Augmented Reality

2019

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Augmented reality (AR) is an emerging technology in which information is superimposed onto the real world directly in front of observers. AR images may behave as distractors because they are inside the observer’s field of view and may cause observers to overlook important information in the real world. This kind of overlooking of events or objects is known as “change blindness.” In change blindness, a distractor may cause someone to overlook a change between an original image and a modified image. In the present study, we investigated whether change blindness occurs when AR is used and whether the AR presentation method influences change blindness. An AR image was presented binocularly or monocularly as a distractor in a typical flicker paradigm. In the binocular presentation, the AR image was presented to the both of the participants’ eyes, so, it was not different from the typical flicker paradigm. By contrast, in the monocular presentation, the AR image was presented to only one eye. Therefore, it was hypothesized that if participants could observe the real-world image through the eye to which the AR image was not presented, change blindness would be avoided because the moment of change itself could be observed. In addition, the luminance of the AR image was expected to influence the ease to observe the real world because the AR image is somewhat translucent. Hence, the AR distractor had three luminance conditions (high, medium, and low), and we compared how many alternations were needed to detect changes among the conditions. Result revealed that more alternations were needed in the binocular presentation and in the high luminance condition. However, in all luminance conditions in the monocular presentation, the number of alternations needed to detect the change was not significantly different from that when the AR distractor was not presented. This result indicates that the monocular presentation could attenuate change blindness, and this might be because the observers’ visual attention is attracted to the location where the change has occurred automatically.

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Augmented Reality for Assistance of Total Knee Replacement

Cited by 10 publications

References 19 publications

A novel visualization system of using augmented reality in knee replacement surgery: Enhanced bidirectional maximum correntropy algorithm

A novel visualization system of using augmented reality in knee replacement surgery: Enhanced bidirectional maximum correntropy algorithm

A Novel Visualization System of Using Augmented Reality in Knee Replacement Surgery: Enhanced Bidirectional Maximum CorrentropyAlgorithm

Monocular Presentation Attenuates Change Blindness During the Use of Augmented Reality

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