Pseudo-Square Tomosynthesis Trajectory for Interventional Lung Procedures
Rajput JR, Preuhs A, Lauritsch G, Maier A (2021)
Publication Type: Conference contribution
Publication year: 2021
Publisher: Institute of Electrical and Electronics Engineers Inc.
Conference Proceedings Title: 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2021 and 28th International Symposium on Room-Temperature Semiconductor Detectors, RTSD 2022
Event location: Virtual, Yokohama
ISBN: 9781665421133
DOI: 10.1109/NSS/MIC44867.2021.9875725
Abstract
Digital tomosynthesis (DTS) is a 3-D imaging technique with limited depth resolution and can be used to guide a catheter during interventional lung procedures. DTS uses projection data acquired over a limited angular range to create tomographic slices with high in-plane resolution. This limited angular acquisition results in out-of-plane artifacts in the reconstructed volume. This work focused on improving the image quality of the tomosynthesis volume for lung imaging by selecting an acquisition trajectory that increases depth resolution, provides a 2-D blur response, and simplifies analytical reconstruction. We proposed a new pseudo-square acquisition geometry for DTS and performed the quantitative and qualitative comparison with arc (pseudo-linear) and circle acquisition geometries. We reconstructed DTS volumes for various angular ranges and numbers of projections for arc, circle, and pseudo-square trajectories using filtered back-projection and compared them with reference computed tomography (CT) scan using Pearson correlation coefficient (PCC). Based on simulations, we showed that pseudo-square acquisition resulted in better image quality than inbounded arc and inbounded circle geometries. It provided on average 5.5% and 26% higher PCC with reference CT than circle and arc DTS, respectively.
Authors with CRIS profile
Junaid Rasool Rajput
Lehrstuhl für Informatik 5 (Mustererkennung)
Andreas Maier
Lehrstuhl für Informatik 5 (Mustererkennung)
Involved external institutions
Germany (DE)How to cite
APA:
Rajput, J.R., Preuhs, A., Lauritsch, G., & Maier, A. (2021). Pseudo-Square Tomosynthesis Trajectory for Interventional Lung Procedures. In Hideki Tomita, Tatsuya Nakamura (Eds.), 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2021 and 28th International Symposium on Room-Temperature Semiconductor Detectors, RTSD 2022. Virtual, Yokohama, JP: Institute of Electrical and Electronics Engineers Inc..
MLA:
Rajput, Junaid Rasool, et al. "Pseudo-Square Tomosynthesis Trajectory for Interventional Lung Procedures." Proceedings of the 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2021, Virtual, Yokohama Ed. Hideki Tomita, Tatsuya Nakamura, Institute of Electrical and Electronics Engineers Inc., 2021.
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