论文信息 - A Fast Algorithm to Calculate the Exact Radiological Path through a Pixel or Voxel Space

A Fast Algorithm to Calculate the Exact Radiological Path through a Pixel or Voxel Space

Calculating the exact radiological path through a pixel or voxel space is a frequently encountered problem in medical image reconstruction from projections and greatly influences the reconstruction time. Currently, one of the fastest algorithms designed for this purpose was published in 1985 by Robert L. Siddon [1]. In this paper, we propose an improved version of Siddon's algorithm, resulting in a considerable speedup.

[1] L. Shepp,et al. Maximum Likelihood Reconstruction for Emission Tomography , 1983, IEEE Transactions on Medical Imaging.

[2] R. Siddon. Fast calculation of the exact radiological path for a three-dimensional CT array. , 1985, Medical physics.

[3] T. K. Narayan,et al. Evaluation of task-oriented performance of several fully 3D PET reconstruction algorithms. , 1994, Physics in medicine and biology.

[4] Ignace Lemahieu,et al. A fast, cache-aware algorithm for the calculation of radiological paths exploiting subword parallelism , 1999, J. Syst. Archit..

[5] Y. Censor. Finite series-expansion reconstruction methods , 1983, Proceedings of the IEEE.

[6] R. Lewitt. Reconstruction algorithms: Transform methods , 1983, Proceedings of the IEEE.

[7] T K Narayan,et al. A methodology for testing for statistically significant differences between fully 3D PET reconstruction algorithms. , 1994, Physics in medicine and biology.