Trocar localisation for robot-assisted vitreoretinal surgery
ConclusionsThe proposed camera-based trocar localisation presents reasonable consistency and accuracy and shows improved results compared to other current methods. Optimum accuracy for this application would necessitate a 1.4  mm absolute error margin, which corresponds to the trocar’s radius. The trocar localisation results are successfully found within this margin, yet the marker localisation would require further refinement to ensure consistency of localisation within the error margin. Further work will refine thes e position estimates and ensure the error stays consistently within this boundary. (Source: Internation...
Source: International Journal of Computer Assisted Radiology and Surgery - June 24, 2023 Category: Intensive Care Source Type: research

Fully immersive virtual reality for skull-base surgery: surgical training and beyond
ConclusionWe present FIVRS, a fully immersive VR system for skull-base surgery. FIVRS features a realistic software simulation coupled with modern hardware for improved realism. The system is completely open source and provides feature-rich data in an industry-standard format. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 22, 2023 Category: Intensive Care Source Type: research

A spatio-temporal network for video semantic segmentation in surgical videos
ConclusionsThis work demonstrates an advance in video segmentation of surgical scenes with potential applications in surgery with a view to improve patient outcomes. The proposed decoder can extend state-of-the-art static models, and it is shown that it can improve per-frame segmentation output and video temporal consistency. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 22, 2023 Category: Intensive Care Source Type: research

Fully immersive virtual reality for skull-base surgery: surgical training and beyond
ConclusionWe present FIVRS, a fully immersive VR system for skull-base surgery. FIVRS features a realistic software simulation coupled with modern hardware for improved realism. The system is completely open source and provides feature-rich data in an industry-standard format. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 22, 2023 Category: Intensive Care Source Type: research

A spatio-temporal network for video semantic segmentation in surgical videos
ConclusionsThis work demonstrates an advance in video segmentation of surgical scenes with potential applications in surgery with a view to improve patient outcomes. The proposed decoder can extend state-of-the-art static models, and it is shown that it can improve per-frame segmentation output and video temporal consistency. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 22, 2023 Category: Intensive Care Source Type: research

Self-knowledge distillation for surgical phase recognition
ConclusionWe embed a self-knowledge distillation framework for the first time in the surgical phase recognition training pipeline. Experimental results demonstrate that our simple yet powerful framework can improve performance of existing phase recognition models. Moreover, our extensive experiments show that even with 75% of the training set we still achieve performance on par with the same baseline model trained on the full set. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 20, 2023 Category: Intensive Care Source Type: research

Improved distinct bone segmentation in upper-body CT through multi-resolution networks
ConclusionThe presented multi-resolution 3D U-Nets address current shortcomings in bone segmentation from upper-body CT scans by allowing for capturing a larger field of view while avoiding the cubic growth of the input pixels and intermediate computations that quickly outgrow the computational capacities in 3D. The approach thus improves the accuracy and efficiency of distinct bone segmentation from upper-body CT. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 20, 2023 Category: Intensive Care Source Type: research

Self-knowledge distillation for surgical phase recognition
ConclusionWe embed a self-knowledge distillation framework for the first time in the surgical phase recognition training pipeline. Experimental results demonstrate that our simple yet powerful framework can improve performance of existing phase recognition models. Moreover, our extensive experiments show that even with 75% of the training set we still achieve performance on par with the same baseline model trained on the full set. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 20, 2023 Category: Intensive Care Source Type: research

Improved distinct bone segmentation in upper-body CT through multi-resolution networks
ConclusionThe presented multi-resolution 3D U-Nets address current shortcomings in bone segmentation from upper-body CT scans by allowing for capturing a larger field of view while avoiding the cubic growth of the input pixels and intermediate computations that quickly outgrow the computational capacities in 3D. The approach thus improves the accuracy and efficiency of distinct bone segmentation from upper-body CT. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 20, 2023 Category: Intensive Care Source Type: research

Unsupervised synthesis of realistic coronary artery X-ray angiogram
ConclusionWe proposed a novel fluoroscopy-based style transfer method for the enhancement of the realism of simulated coronary artery angiograms. The results show that the proposed model is capable of accurately transferring the style of X-ray angiograms to the simulations while keeping the integrity of the structures of interest (i.e., the topology of the coronary arteries). (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 19, 2023 Category: Intensive Care Source Type: research

Exhaustive matching of 3D/2D coronary artery structure based on imperfect segmentations
ConclusionThe proposed exhaustive structure matching algorithm is simple and straightforward without any impractical assumption or time-consuming computations. With this method, the influence of the imperfect segmentations is eliminated and the accurate matching could be achieved efficiently. This lays a good foundation for the subsequent 3D/2D coronary artery registration task. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 18, 2023 Category: Intensive Care Source Type: research

Non-rigid point cloud registration for middle ear diagnostics with endoscopic optical coherence tomography
ConclusionsIn this work, we aim to enable diagnosis of middle ear structures with the assistance of OCT images. We propose C2P-Net: a two-staged non-rigid registration pipeline for point clouds to support the interpretation of in vivo noisy and partial OCT images for the first time. Code is available at:https://gitlab.com/nct_tso_public/c2p-net. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - June 17, 2023 Category: Intensive Care Source Type: research