X-ray spectrum estimation from transmission measurements using the expectation maximization method

IEEE Nuclear Science Symposium Conference Record

Volumn 4, Issue , 2007, Pages 3089-3093

  Zhang, Li ^a,b   Zhang, Guowei ^b   Chen, Zhiqiang ^b   Xing, Yuxiang ^b   Cheng, Jianping ^b   Xiao, Yongshun ^b  

^a IEEE

^b TSINGHUA UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; COMPUTERIZED TOMOGRAPHY; DIAGNOSTIC RADIOGRAPHY; EMISSION SPECTROSCOPY; ESTIMATION; EXPERIMENTS; IMAGE PROCESSING; IMAGE RECONSTRUCTION; IMAGE SEGMENTATION; MAXIMUM PRINCIPLE; MEDICAL IMAGING; PLASMA DIAGNOSTICS; TOMOGRAPHY; X RAY ANALYSIS; X RAY SPECTROGRAPHS;

BEAM-HARDENING CORRECTION; CT SYSTEMS; DOSE CALCULATIONS; EMISSION COMPUTED TOMOGRAPHY; EXPECTATION-MAXIMIZATION METHOD; INITIAL VALUES; MONTE-CARLO CALCULATIONS; NUCLEAR SCIENCES; NUMERICAL SIMULATIONS; RESEARCH AREA; SPECTRUM ESTIMATION; TRANSMISSION DATA; TRANSMISSION MEASUREMENTS; X-RAY SPECTRUM;

IMAGING TECHNIQUES;

EID: 48149102872     PISSN: 10957863     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/NSSMIC.2007.4436783     Document Type: Conference Paper

References (15)

1. Idris A. Elbakri and Jeffrey A. Fessier, "Statistical image reconstruction for polyenergetic x-ray computed tomography", IEEE transactions on Medical Imaging, vol. 21, no. 2, 89-99, 2002.
2. Li Zhang, Guowei Zhang, Zhiqiang Chen and Yuxiang Xing, "An approximate reconstruction method for dual energy computed tomography", in Proceedings of the 9th International Meeting on Fully ThreeDimensional Image Reconstruction in Radiology and Nuclear Medicine, 317-320, 2007.
3. Bruce R. Whiting, Parinaz Massoumzadeh and Orville A. Earl, "Properties of preprocessed sinogram data in x-ray computed tomography", Med. Phys., vol. 33, no.9. 3290-3303, 2006.
4. L. Silberstein, "Determination of the spectral composition of x-ray radiation from filtration data". J. Opt. Soc. Am., 22, 265-280, 1932.
5. Christopher Ruth and Peter M. Joseph, "Estimation of a photon energy spectrum for a computed tomography scanner", Med. Phys., vol. 24, no. 5, 695-702,1997.
6. Robert G. Waggener. Melissa M. Blough, James A. Teny, etc., "X-ray spectra estimation using attenuation measurements from 25kVp to 18MV", Med. Phys., vol. 26, no. 7, 1269-1278, 1999.
7. Akira Iwasaki, Mamoru Kubota and Junichi Hirota, "Characteristic features of a high-energy x-ray spectra estimation method based on the Waggener iterative perturbation principle", Med. Phys., vol. 33, no. 11, 4056-4063, 2006.
8. Victor Delgado, "Determination of x-ray spectra from attenuation data by imposing a priori positiveness and bounded support: Theory and experimental validation", Med. Phys., vol. 34, no. 3, 994-1006, 2007.
9. M. R. Ay. S. Sarkar, M. Shahriari, D. Sardari and H. Zaidi, "Assessment of different computational models for generation of x-ray spectra in diagnostic radiology and mammography", Med. Phys., vol. 32, no. 6, 1660-1675, 2005.
10. Kenneth Lange and Richard Carson, "EM reconstruction algorithms for emission and transmission tomography", J. Comp. Assist. Tomogr., vol. 8, no. 2, 306-316, 1984.
11. Emil Y. Sidky, Lifeng Yu, Xiaochuan Pan, Yu Zou and Michael Vannier, "A robust method of x-ray source spectrum estimation from transmission measurements: Demonstrated on computer simulated, scatter-free transmission data", J. Appl. Phys., 97, 124701, 2005.
12. Giovanni M. Lasio, Bruce R. Whiting and Jeffrey F. Williamson, "Statistical reconstruction for x-ray computed tomography using energy-integrating detectors", Phys. Med. Biol., vol. 52, no. 8, 2247-2266, 2007.
13. Jingyan Xu and Benjamin M. W. Tsui, "A compound Poisson maximum-likelihood iterative reconstruction algorithm for x-ray CT", in Proceedings of the 9th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 108-111, 2007.
14. J. H. Hubbell and S. M. Seltzer, Tables of x-ray mass attenuation coefficients and mass energy-absorption coefficients. Available online: http://physics.nist.gov/PhysRefData/XrayMassCoef/cover.html.
15. M. R. Ay, M. Shahriari, S. Sarkar, M. Adib and H. Zaidi, "Monte Carlo simulation of x-ray spectra in diagnostic radiology and mammography using MCNP4C", Phys. Med. Biol., vol. 49, no. 21, 4897-4917, 2004.