Removal and effects of scatter-glare in cone-beam CT with an amorphous-silicon flat-panel detector

Physics in Medicine and Biology

Volumn 56, Issue 6, 2011, Pages 1837-1851

  Poludniowski, G ^a   Evans, P M ^a   Kavanagh, A ^a   Webb, S ^a  

^a INSTITUTE OF CANCER RESEARCH   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

CONE-BEAM CT; CT (COMPUTED TOMOGRAPHY); FLAT-PANEL DETECTORS; IMAGE DEGRADATION; LOW-SPATIAL FREQUENCY; MATERIAL DENSITY; MEASUREMENT METHODS; PROJECTION IMAGE; TISSUE-EQUIVALENT MATERIALS;

AMORPHOUS SILICON; CALIBRATION; DECONVOLUTION; DETECTORS; GLARE;

COMPUTERIZED TOMOGRAPHY;

SILICON;

ARTICLE; CALIBRATION; CHEMISTRY; CONE BEAM COMPUTED TOMOGRAPHY; IMAGE QUALITY; INSTRUMENTATION; METHODOLOGY; RADIATION SCATTERING;

CALIBRATION; CONE-BEAM COMPUTED TOMOGRAPHY; PHANTOMS, IMAGING; SCATTERING, RADIATION; SILICON;

EID: 79952935319     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/56/6/019     Document Type: Article

References (31)

1. Barrett H H and Swindell W 1981 Radiological Imaging (New York: Academic) pp 60-1
2. Boggula R, Lorenz F, Abo-Madyan Y, Lohr F, Wolff D, Boda Heggemann J, Hesser J, Wenz F and Wertz H 2009 A new strategy for online adaptive prostate radiotherapy based on cone-beam CT Z. Med. Phys. 19 264-76
3. Carton A K, Acciavatti R, Kuo J and Maidment A D 2009 The effect of scatter and glare on image quality in contrast-enhanced breast imaging using an a-Si/CsI(TI) full-field flat panel detector Med. Phys. 36 920-8
4. Chen L, Shaw C C, Altunbas M C, Lai C J and Liu X 2008 Spatial resolution properties in cone beam CT: a simulation study Med. Phys. 35 724-34 (Pubitemid 351200419)
5. Cooper V N III, Boone J M, Seibert J A and Pellot-Barakat C J 2000 An edge spread technique for measurement of the scatter-to-primary ratio in mammography Med. Phys. 27 845-53 (Pubitemid 30349992)
6. Den R B, Doemer A, Kubicek G, Bednarz G, Galvin J M, Keane W M, Xiao Y and Machtay M 2010 Daily image guidance with cone-beam computed tomography for head-and-neck cancer intensity-modulated radiotherapy: a prospective study Int. J. Radiat. Oncol. Biol. Phys. 76 1353-9
7. Feldkamp L A, Davis L C and Kress J W 1984 Practical cone-beam algorithm J. Opt. Soc. Am. A 1 612-9
8. Freed M, Miller S, Tang K and Badano A 2009 Experimental validation of Monte Carlo (MANTIS) simulated x-ray response of columnar CsI scintillator screens Med. Phys. 36 4944-56
9. Friedman S N and Cunningham I A 2008 Normalization of the modulation transfer function: the open-field approach Med. Phys. 35 4443-9
10. Gradshteyn I S and Ryzhik I M 2000 Table of Integrals, Series, and Products 6th edn (New York: Academic)
11. Illers H, Buhr E, Günther-Kohfahl S and Neitzel U 2005 Measurement of the modulation transfer function of digital X-ray detectors with an opaque edge-test device Radiat. Prot. Dosim. 114 214-9
12. Jarry G, Graham S A, Moseley D J, Jaffray D J, Siewerdsen J H and Verhaegen F 2006 Characterization of scattered radiation in kV CBCT images using Monte Carlo simulations Med. Phys. 33 4320-9 (Pubitemid 44673122)
13. Jin J-Y, Ren L, Liu Q, Kim J, Wen N, Movsas B and Chetty I J 2010 Methods to fully generate improved CBCT images from partially-blocked projection data Proc. 16th Int. Conf. on the Use of Computers in Radiation Therapy (ICCR) (Het Nederlands Kanker Instituut- Antoni van Leeuwenhoek Ziekenhuis, Amsterdam)
14. Kak A C and Slaney M 2001 Principles of Computerized Tomographic Imaging (Philadelphia, PA: SIAM) chapter 3 (Algorithms for Reconstruction with Nondiffracting Sources) pp 49-112
15. Kirkby C and Sloboda R 2005 Comprehensive Monte Carlo calculation of the point spread function for a commercial a-Si EPID Med. Phys. 32 1115-27 (Pubitemid 40586796)
16. Lebedev N N 1972 Special Functions and Their Applications (New York: Dover) chapter 5 (Cylinder Functions: Theory) pp 108-9
17. Li H, Mohan R and Zhu X R 2008 Scatter kernel estimation with an edge-spread function method for cone-beam computed tomography imaging Phys. Med. Biol. 53 6729-48
18. Lu W, Chen M, Chen Q, Ruchala K and Olivera G 2008 Adaptive fractionation therapy: I. Basic concept and strategy Phys. Med. Biol. 53 5495-511
19. Mail N, Moseley D J, Siewerdsen J H and Jaffray D A 2008 An empirical method for lag correction in cone-beam CT Med. Phys. 35 5187-96
20. Marchant T E, Moore C J, Rowbottom C G, MacKay R I and Williams P C 2008 Shading correction algorithm for improvement of cone-beam CT images in radiotherapy Phys. Med. Biol. 53 5719-33
21. Ploeger L S, Sonke J J and van Herk M 2010 Characterization of ghosting in cone beam CT Proc. 16th Int. Conf. on the Use of Computers in Radiation Therapy (ICCR) (Het Nederlands Kanker Instituut- Antoni van Leeuwenhoek Ziekenhuis, Amsterdam)
22. Poludniowski G, Landry G, DeBlois F, Evans P M and Verhaegen F 2009b SpekCalc: a program to calculate photon spectra from tungsten anode x-ray tubes Phys. Med. Biol. 54 N433-8
23. Poludniowski G G 2007 Calculation of x-ray spectra emerging from an x-ray tube: part II. X-ray production and filtration in x-ray targets Med. Phys. 34 2175-6
24. Poludniowski G G, Evans P M and Webb S 2009a An efficient Monte Carlo-based algorithm for scatter correction in keV cone-beam CT Phys. Med. Biol. 54 3847-64
25. Richter A, Hu Q, Steglich D, Baier K, Wilbert J, Guckenberger M and Flentje M 2008 Investigation of the usability of conebeam CT data sets for dose calculation Radiat. Oncol. 16 42
26. Roberts D A, Hansen V N, Niven A C, Thompson M G, Seco J and Evans P M 2008 A low Z linac and flat panel imager: comparison with the conventional imaging approach Phys. Med. Biol. 53 6305-19
27. Seibert J A, Nalcioglu O and Roeck W W 1984 Characterization of the veiling glare PSF in x-ray image intensified fluoroscopy Med. Phys. 11 172-9 (Pubitemid 14107163)
28. Siewerdsen J H and Jaffray D A 1999 A ghost story: spatio-temporal response characteristics of an indirect-detection flat-panel imager Med. Phys. 26 1624-41 (Pubitemid 29402274)
29. Siewerdsen J H and Jaffray D A 2001 Cone-beam computed tomography with a flat-panel imager: magnitude and effects of x-ray scatter Med. Phys. 28 220-31 (Pubitemid 32165760)
30. Studholme C, Hill D L G and Hawkes D J 1999 An overlap invariant entropy measure of 3D medical image alignment Pattern Recognit. 32 71-86
31. Webb S 2008 Adapting IMRT delivery fraction-by-fraction to cater for variable intrafraction motion Phys. Med. Biol. 53 1-21