Evaluation of state-of-the-art hardware architectures for fast cone-beam CT reconstruction

Journal article
(Original article)

Publication Details

Author(s): Scherl H, Kowarschik M, Hofmann H, Keck B, Hornegger J
Journal: Parallel Computing
Publisher: Elsevier
Publication year: 2012
Volume: 38
Journal issue: 3
Pages range: 111-124
ISSN: 0167-8191


We present an evaluation of state-of-the-art computer hardware architectures for implementing the FDK method, which solves the 3-D image reconstruction task in cone-beam computed tomography (CT). The computational complexity of the FDK method prohibits its use for many clinical applications unless appropriate hardware acceleration is employed. Today's most powerful hardware architectures for high-performance computing applications are based on standard multi-core processors, off-the-shelf graphics boards, the Cell Broadband Engine Architecture (CBEA), or customized accelerator platforms (e.g., FPGA-based computer components). For each hardware platform under consideration, we describe a thoroughly optimized implementation of the most time-consuming parts of the FDK algorithm; the filtering step as well as the subsequent back-projection step. We further explain the required code transformations to parallelize the algorithm for the respective target architecture. We compare both the implementation complexity and the resulting performance of all architectures under consideration using the same two medical datasets which have been acquired using a standard C-arm device. Our optimized back-projection implementations achieve at least a speedup of 6.5 (CBEA, two processors), 22.0 (GPU, single board), and 35.8 (FPGA, 9 chips) compared to a standard workstation equipped with a quad-core processor. © 2011 Elsevier B.V. All rights reserved.

FAU Authors / FAU Editors

Hofmann, Hannes
Lehrstuhl für Informatik 5 (Mustererkennung)
Hornegger, Joachim Prof. Dr.-Ing.
Lehrstuhl für Informatik 5 (Mustererkennung)
Keck, Benjamin
Lehrstuhl für Informatik 5 (Mustererkennung)

External institutions with authors

Siemens AG

How to cite

Scherl, H., Kowarschik, M., Hofmann, H., Keck, B., & Hornegger, J. (2012). Evaluation of state-of-the-art hardware architectures for fast cone-beam CT reconstruction. Parallel Computing, 38(3), 111-124. https://dx.doi.org/10.1016/j.parco.2011.10.004

Scherl, Holger, et al. "Evaluation of state-of-the-art hardware architectures for fast cone-beam CT reconstruction." Parallel Computing 38.3 (2012): 111-124.


Last updated on 2019-09-04 at 16:23