Fast 5DOF needle tracking in iOCT

Weiss J, Rieke N, Nasseri MA, Maier M, Eslami A, Navab N (2018)


Publication Type: Journal article

Publication year: 2018

Journal

Book Volume: 13

Pages Range: 787-796

Journal Issue: 6

DOI: 10.1007/s11548-018-1751-5

Abstract

Purpose: Intraoperative optical coherence tomography (iOCT) is an increasingly available imaging technique for ophthalmic microsurgery that provides high-resolution cross-sectional information of the surgical scene. We propose to build on its desirable qualities and present a method for tracking the orientation and location of a surgical needle. Thereby, we enable the direct analysis of instrument–tissue interaction directly in OCT space without complex multimodal calibration that would be required with traditional instrument tracking methods. Method: The intersection of the needle with the iOCT scan is detected by a peculiar multistep ellipse fitting that takes advantage of the directionality of the modality. The geometric modeling allows us to use the ellipse parameters and provide them into a latency-aware estimator to infer the 5DOF pose during needle movement. Results: Experiments on phantom data and ex vivo porcine eyes indicate that the algorithm retains angular precision especially during lateral needle movement and provides a more robust and consistent estimation than baseline methods. Conclusion: Using solely cross-sectional iOCT information, we are able to successfully and robustly estimate a 5DOF pose of the instrument in less than 5.4 ms on a CPU.

Involved external institutions

How to cite

APA:

Weiss, J., Rieke, N., Nasseri, M.A., Maier, M., Eslami, A., & Navab, N. (2018). Fast 5DOF needle tracking in iOCT. International Journal of Computer Assisted Radiology and Surgery, 13(6), 787-796. https://doi.org/10.1007/s11548-018-1751-5

MLA:

Weiss, Jakob, et al. "Fast 5DOF needle tracking in iOCT." International Journal of Computer Assisted Radiology and Surgery 13.6 (2018): 787-796.

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