Determination of point spread function in computed tomography accompanied with verification

Medical Physics

Volumn 36, Issue 6, 2009, Pages 2089-2097

  Ohkubo, Masaki ^a   Wada, Shinichi ^a   Ida, Satoshi ^a   Kunii, Masayuki ^a   Kayugawa, Akihiro ^a   Matsumoto, Toru ^b   Nishizawa, Kanae ^b   Murao, Kohei ^c  

^a NIIGATA UNIVERSITY   (Japan)

^b NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES   (Japan)

^c FUJITSU LABORATORIES LTD   (Japan)

Author keywords

Computed tomography (CT); Line spread function (LSF); Modulation transfer function (MTF); Point spread function (PSF); Spatial resolution

Indexed keywords

COMPUTERIZED TOMOGRAPHY; DECONVOLUTION; IMAGE RECONSTRUCTION; INVERSE PROBLEMS; PHANTOMS;

INVERSE FILTERING; LINE SPREAD FUNCTIONS; NORMALIZED STANDARD DEVIATIONS; OPTIMAL PARAMETER SETTINGS; RECONSTRUCTION KERNEL; SPATIAL FREQUENCY; SPATIAL RESOLUTION; VERIFICATION METHOD;

OPTICAL TRANSFER FUNCTION;

ACCURACY; ANALYTIC METHOD; ANALYTICAL PARAMETERS; ARTICLE; COMPUTER ASSISTED TOMOGRAPHY; CONTROLLED STUDY; IMAGE RECONSTRUCTION; KERNEL METHOD; PHANTOM; PRIORITY JOURNAL;

EID: 66449134495     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.3123762     Document Type: Article

References (25)

1. W. A. Kalender, Computed Tomography, 2nd ed. (Publicis, Erlangen, 2005).
2. K. Rossmann, " Point spread-function, line spread-function, and modulation transfer function. Tools for the study of imaging systems.," Radiology 0033-8419 93, 257-272 (1969).
3. C. McCann and H. Alasti, " Comparative evaluation of image quality from three CT simulation scanners.," J. Appl. Clin. Med. Phys. 1526-9914 5, 55-70 (2004). 10.1120/jacmp.2022.25310
4. The Phantom Laboratory, CatphanManual (The Phantom Laboratory, Inc., Salem, 2001).
5. Ge. Wang, M. W. Vannier, M. W. Skinner, M. G. Cavalcanti, and G. W. Harding, " Spiral CT image deblurring for cochlear implantation.," IEEE Trans. Med. Imaging 0278-0062 17, 251-262 (1998). 10.1109/42.700737 (Pubitemid 128747678)
6. S. Tsukagoshi, T. Ota, M. Fujii, M. Kazama, M. Okumura, and T. Johkoh, " Improvement of spatial resolution in the longitudinal direction for isotropic imaging in helical CT.," Phys. Med. Biol. 0031-9155 52, 791-801 (2007). 10.1088/0031-9155/52/3/018
7. E. Rollano-Hijarrubia, W. Niessen, H. Weinans, A. van der Lugt, and R. Stokking, " Histogram-based selective deblurring to improve computed tomography imaging of calcifications.," Invest. Radiol. 0020-9996 42, 8-22 (2007). 10.1097/01.rli.0000248894.94242.96
8. S. Prevrhal, J. C. Fox, J. A. Shepherd, and K. Genant, " Accuracy of CT-based thickness measurement of thin structures: Modeling of limited spatial resolution in all three dimensions.," Med. Phys. 0094-2405 30, 1-8 (2003). 10.1118/1.1521940
9. M. Okubo, S. Wada, and M. Saito, " Validation of the blurring of a small object on CT images calculated on the basis of three-dimensional spatial resolution.," Igaku Butsuri 25, 132-140 (2005). 1345-5354
10. E. Rollano-Hijarrubia, R. Stokking, F. van der Meer, and W. J. Niessen, " Imaging of small high-density structures in CT: A phantom study.," Acad. Radiol. 1076-6332 13, 893-908 (2006). 10.1016/j.acra.2006.03.009
11. M. Ohkubo, S. Wada, M. Kunii, T. Matsumoto, and K. Nishizawa, " Imaging of small spherical structures in CT: Simulation study using measured point spread function.," Med. Biol. Eng. Comput. 0140-0118 46, 273-282 (2008). 10.1007/s11517-007-0283-x
12. C. J. Bischof and J. C. Ehrhardt, " Modulation transfer function of the EMI CT head scanner.," Med. Phys. 0094-2405 4, 163-167 (1977). 10.1118/1.594305
13. E. L. Nickoloff and R. Riley, " A simplified approach for modulation transfer function determinations in computed tomography.," Med. Phys. 0094-2405 12, 437-442 (1985). 10.1118/1.595706
14. E. L. Nickoloff, " Measurement of the PSF for a CT scanner: Appropriate wire diameter and pixel size.," Phys. Med. Biol. 0031-9155 33, 149-155 (1988). 10.1088/0031-9155/33/1/014 (Pubitemid 18035701)
15. G. Dougherty, " Effect of sub-pixel misregistration on the determination of the point spread function of a CT imaging system.," Med. Eng. Phys. 1350-4533 22, 503-507 (2000). 10.1016/S1350-4533(00)00061-8
16. J. M. Boone, " Determination of the presampled MTF in computed tomography.," Med. Phys. 0094-2405 28, 356-360 (2001). 10.1118/1.1350438
17. Z. Chen and R. Ning, " Pitfalls in point-spread-function measurement of computed tomographic system by microphantom reconstruction.," Opt. Eng. 0091-3286 44, 017002 (2005). 10.1117/1.1827610
18. M. Ohkubo, S. Wada, T. Matsumoto, and K. Nishizawa, " An effective method to verify line and point spread functions measured in computed tomography.," Med. Phys. 0094-2405 33, 2757-2764 (2006). 10.1118/1.2214168
19. A. L. Kwan, J. M. Boone, K. Yang, and S. Y. Huang, " Evaluation of the spatial resolution characteristics of a cone-beam breast CT scanner.," Med. Phys. 0094-2405 34, 275-281 (2007). 10.1118/1.2400830
20. T. G. Flohr, K. Stierstorfer, C. Süss, B. Schmidt, A. N. Primak, and C. H. McCollough, " Novel ultrahigh resolution data acquisition and image reconstruction for multi-detector row CT.," Med. Phys. 0094-2405 34, 1712-1723 (2007). 10.1118/1.2722872
21. Z. Chen and R. Ning, " Three-dimensional point spread function measurement of cone-beam computed tomography system by iterative edge-blurring algorithm.," Phys. Med. Biol. 0031-9155 49, 1865-1880 (2004). 10.1088/0031-9155/49/10/003
22. F. J. Schlueter, G. Wang, P. S. Hsieh, J. A. Brink, D. M. Balfe, and M. W. Vannier, " Longitudinal image deblurring in spiral CT.," Radiology 0033-8419 193, 413-418 (1994). (Pubitemid 24338326)
23. G. Wang, M. W. Skinner, and M. W. Vannier, " Temporal bone volumetric image deblurring in spiral computed tomography scanning.," Acad. Radiol. 1076-6332 2, 888-895 (1995). 10.1016/S1076-6332(05)80069-8
24. O. Sakai, Y. Shen, Y. Takata, and M. Furuse, " The use of deblurring technique for improving the longitudinal resolution in helical CT of the head and neck region.," Comput. Med. Imaging Graph. 0895-6111 21, 153-164 (1997). 10.1016/S0895-6111(97)00004-9
25. G. Schwarzband and N. Kiryati, " The point spread function of spiral CT.," Phys. Med. Biol. 0031-9155 50, 5307-5322 (2005). 10.1088/0031-9155/50/22/007