Automated image fusion during endovascular aneurysm repair: a feasibility and accuracy study
ConclusionAutomated image fusion was feasible when all vertebral edges were visible. Accuracy was non-inferior to manual image fusion regarding bone alignment. Future developments should focus on intraoperative image-based correction of vascular alignment. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - August 1, 2023 Category: Intensive Care Source Type: research

Reconstruction of dental roots for implant planning purposes: a retrospective computational and radiographic assessment of single-implant cases
ConclusionThe RTA estimated by the SSM revealed to be a viable implant axis for most of the posterior implant cases. As there are natural differences between the anatomical tooth axis and a desirable implant axis, modifications were necessary to correct the deviations which occurred in anterior implant cases. However, the presented approach is not applicable for clinical use and always requires manual optimization by the planning surgeon. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 31, 2023 Category: Intensive Care Source Type: research

Enhancing electromagnetic tracking accuracy in medical applications using pre-trained witness sensor distortion models
ConclusionsThe distortion profile associated with medical equipment was pre-characterised and used in applications such as object tracking and error compensation map selection. In the current study, the movement was limited to one degree of freedom (1  DOF) and simple analytical functions were used to model the magnetic distortion. Future work will explore advanced AI models to extend the method to 6 DOF tracking using multiple witness sensors. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 27, 2023 Category: Intensive Care Source Type: research

Toward a novel soft robotic system for minimally invasive interventions
ConclusionThis soft robotic system enables its user to simultaneously insert and bend the pneumatically actuated catheter tip with high accuracy and in a short amount of time. These results show promise concerning the development of a soft robotic system that can improve outcomes in minimally invasive interventions. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 24, 2023 Category: Intensive Care Source Type: research

Automated image fusion during endovascular aneurysm repair: a feasibility and accuracy study
ConclusionAutomated image fusion was feasible when all vertebral edges were visible. Accuracy was non-inferior to manual image fusion regarding bone alignment. Future developments should focus on intraoperative image-based correction of vascular alignment. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 23, 2023 Category: Intensive Care Source Type: research

Impact of cardiac and respiratory motion on the 3D accuracy of image-guided interventions on monoplane systems
ConclusionsIn the presented work, the accuracy of the IGI system could be assessed based on in vivo data. Motion consideration clearly showed the potential to increase the accuracy in IGI systems. Where the general decrease in accuracy in non-motion-synchronized data did not come unexpected, a clear difference between cardiac and respiratory motion-induced errors was observed for LAAc data. Since sedation and intervention location close to the large vessels likely impacts the respiratory motion contribution, an intervention-specific accuracy analysis may be useful for other interventions. (Source: International Journal of ...
Source: International Journal of Computer Assisted Radiology and Surgery - July 21, 2023 Category: Intensive Care Source Type: research

Multiple instance ensembling for paranasal anomaly classification in the maxillary sinus
ConclusionSampling and MIE can be effective techniques to improve the generalizability of CNNs for paranasal anomaly classification. We demonstrate the feasibility of classifying anomalies in the MS. We propose a data enlarging strategy through sampling alongside a novel MIE strategy that proves to be beneficial for paranasal anomaly classification in the MS. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 21, 2023 Category: Intensive Care Source Type: research

Diameters of lingual, facial, and maxillary arteries measured according to an objective protocol on 3D computed tomography angiography images
ConclusionThe findings of this study will be beneficial in determining the need of a new catheter navigation system and diameter of catheters to be used in the clinical practice. From the viewpoint of measurement automation and reproducibility, 3DCTA vessel measurement taken according to the proposed protocol was considered to be effective. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 19, 2023 Category: Intensive Care Source Type: research

Comparative verification of control methodology for robotic interventional neuroradiology procedures
ConclusionOf the four metrics used to compare and contrast the human –robot interfaces, three conclusively showed that a device-mimicking controller was better suited for controlling interventional neuroradiology robotics. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 17, 2023 Category: Intensive Care Source Type: research

Automated image registration of cerebral digital subtraction angiography
ConclusionWe developed and assessed an automated image registration approach for cerebral DSA sequences, recorded before and after endovascular thrombectomy. Accurate results were obtained for approximately 85% of our image pairs. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 17, 2023 Category: Intensive Care Source Type: research

Accuracy of on-site teleoperated milling with haptic assistance
ConclusionFor optimal guidance and milling parameters, the combined error of 0.23  mm is in the range of the dura mater thickness (<  0.27 mm) or mandibular canal wall (~ 0.85 mm). This corresponds to safety margins in high-demand surgical procedures like craniotomies, laminectomies, or decortication of the jaw. However, for further clinical translation, the performance and usability of on-site teleoperated milling must be further evaluated for real-life clinical application examples with consideration of all error sources in a computer-assisted surgery workflow. (Source: International Journal of Computer Assiste...
Source: International Journal of Computer Assisted Radiology and Surgery - July 16, 2023 Category: Intensive Care Source Type: research

Automated quantification of glenoid bone loss in CT scans for shoulder dislocation surgery planning
ConclusionOur pipeline is the first fully automatic method for the quantitative analysis of glenoid bone loss in CT scans. The computed glenoid bone loss report may assist orthopedists in selecting and planning surgical shoulder dislocation procedures. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 14, 2023 Category: Intensive Care Source Type: research

Stereoscopic calibration for augmented reality visualization in microscopic surgery
ConclusionWe present the calibration of an electromagnetically tracked surgical stereo microscope for augmented reality visualization. The calibration method achieved accuracy within a range suitable for otologic procedures. The AR process introduces enhanced visualization of the surgical field while allowing depth perception. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 14, 2023 Category: Intensive Care Source Type: research

Validation of real-time inside-out tracking and depth realization technologies for augmented reality-based neuronavigation
ConclusionsThe results validate the efficacy of the real-time inside-out tracking and depth realization technology. With these novel technologies developed for continuous tracking and depth perception in augmented reality environments, we are able to overcome the critical obstacles in the development of clinically applicable augmented reality neuronavigation. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 13, 2023 Category: Intensive Care Source Type: research

Deep learning-based age estimation from chest CT scans
ConclusionFindings suggest that chest CT age captures some aspects of biological aging and may be a more accurate predictor of lung cancer risk than chronological age. Future studies with larger and more diverse patients are required for the generalization of the interpretations. (Source: International Journal of Computer Assisted Radiology and Surgery)
Source: International Journal of Computer Assisted Radiology and Surgery - July 7, 2023 Category: Intensive Care Source Type: research