Real-time 3D reconstruction of multiple guidewires at dose values of conventional 2D fluoroscopy

Tim Vöth; Thomas König; Elias Eulig; Michael Knaup; Klaus Hörndler; Marc Kachelrieß

doi:10.1117/12.2606579

4 April 2022 Real-time 3D reconstruction of multiple guidewires at dose values of conventional 2D fluoroscopy

Tim Vöth, Thomas König, Elias Eulig, Michael Knaup, Klaus Hörndler, Marc Kachelrieß

Proceedings Volume 12031, Medical Imaging 2022: Physics of Medical Imaging; 120311M (2022) https://doi.org/10.1117/12.2606579
Event: SPIE Medical Imaging, 2022, San Diego, California, United States

Abstract

Today, 2D+T fluoroscopy is usually used for image guidance in interventional radiology. For challenging procedures, 4D (3D+T) image guidance would be advantageous. The difficulty in realizing X-ray-based 4D interventional guidance lies in the development of a very dose efficient reconstruction algorithm. To this end, we improve on a previously presented algorithm for the reconstruction of interventional tools. By incorporating temporal information into a 3D convolutional neural network, we reduce the number of X-ray projections that need to be acquired for the 3D reconstruction of guidewires from four to two, thereby halving dose and decreasing the demands put on imaging devices implementing the algorithm. In experiments with two moving guidewires in an anthropomorphic phantom, we observe little deviation of our 3D reconstructions from the ground truth.

Conference Presentation

Citation Download Citation

Tim Vöth, Thomas König, Elias Eulig, Michael Knaup, Klaus Hörndler, and Marc Kachelrieß "Real-time 3D reconstruction of multiple guidewires at dose values of conventional 2D fluoroscopy", Proc. SPIE 12031, Medical Imaging 2022: Physics of Medical Imaging, 120311M (4 April 2022); https://doi.org/10.1117/12.2606579

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