Radiography
Volume 16, Issue 4 , Pages 304-313 , November 2010

Impact of focal spot size on radiologic image quality: A visual grading analysis

Received 17 October 2008 ,Revised 27 May 2009 ,Accepted 28 February 2010.

References 

  1. Ammann E, Kutschera W. X-ray tubes—continuous innovative technology. The British Journal of Radiology. 1997;70:S1–S9
  2. Hames SM, Flynn MJ, Reimann DA. Measurement of very small (1–10micron) X-ray focal spot intensity distributions. Nuclear Science Symposium and Medical Imaging Conference, Conference Record of the 1992 IEEE, 1993; vol. 2, p. 1331–3.
  3. Cunningham IA, Fenster A. A method for modulation transfer function determination from edge profiles with correction for finite-element differentiation. Medical Physics. 1987;14:533–537
  4. Doi K, Loo LN, Chan HP. X-ray tube focal spot sizes: comprehensive studies of their measurement and effect of measured size in angiography. Radiology. 1982;144:383–393
  5. Letang JM, Peix G. On-line X-ray focal spot assessment based on deconvolution using standard imaging devices. NDT & E International. 2003;36:303–317
  6. Ball J, Price T. Chesneys' radiographic imaging. 6th ed.. Oxford: Blackwell Scientific; 1995;
  7. Carmichael JHE, Maccia C, Moores BM, Oestmann JW, Schibilla H, Teunen D, et al. European guidelines on quality criteria for diagnostic radiographic images. Luxembourg: Office for Official Publications of the European Communities; 1996;
  8. Muntz EP, Logan WW. Focal spot size and scatter suppression in magnification mammography. American Journal of Roentgenology. 1979;133:453–459
  9. Katz MC, Nickoloff EL. Radiographic detail and variation of the nominal focal spot size: the "focal effect. Radiographics. 1992;12:753–761
  10. Platin E, Mauriello S, Ludlow JB. Effects of focal spot size on caries diagnosis with D and E speed images. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics. 1996;81:235–239
  11. Hart D, Wall BF. Radiation exposure of the UK population from medical and dental X-ray examinations. United Kingdom: National Radiological Protection Board; 2002;W4
  12. Mansson LG. Methods for the evaluation of image quality: a review. Radiation Protection Dosimetry 90:89–99.
  13. Peters SE, Brennan PC. Digital radiography: are the manufacturers' settings too high? Optimisation of the Kodak digital radiography system with aid of the computed radiography dose index. European Radiology. 2002;12:2381–2387
  14. Doyle CA, Brennan PC. Erbium filtration: a cost effective, dose-reducing filter which maintains abdominal image quality. European Radiology. 1999;9:1923–1925
  15. Grondin Y, Matthews K, McEntee M, Rainford L, Casey M, Tonra M, et al. Dose-reducing strategies in combination offers substantial potential benefits to females requiring X-ray examination. Radiation Protection Dosimetry. 2004;108:123–132
  16. Tingberg A, Båth M, Håkansson M, Medin J, Besjakov J, Sandborg M, et al. Evaluation of image quality of lumbar spine images: a comparison between FFE and VGA. Radiation Protection Dosimetry. 2005;114:53–61
  17. Sandborg M, Tingberg A, Ullman G, Dance DR, Alm Carlsson G. Comparison of clinical and physical measures of image quality in chest and pelvis computed radiography at different tube voltages. Medical Physics. 2006;33:4169–4175
  18. Sund P, Båth M, Kheddache S, Månsson LG. Comparison of visual grading analysis and determination of detective quantum efficiency for evaluating system performance in digital chest radiography. European Radiology. 2004;14:48–58
  19. Brennan PC, McEntee M, Evantoff M, Philips P, O'Connor WT, Manning DJ. Ambient lighting: effect of illumination on soft-copy viewing of radiographs of the wrist. American Journal of Roentgenology. 2007;188:W177–W180
  20. Finch A, Bury R, Davies G, Fife I, Hufton A, Workman A. Assurance of quality in the diagnostic imaging department. 2nd ed.. London: The British Institute of Radiology; 2001;
  21. Doherty P, O'Leary D, Brennan PC. Do CEC guidelines under-utilise the full potential of increasing kVp as a dose-reducing tool?. European Radiology. 2003;13:1992–1999
  22. Brennan PC, Nash M. Increasing FFD: an effective dose-reducing tool for lateral lumbar spine investigations. Radiography. 1998;4:251–259
  23. Nic an Ghearr FA, Brennan PC. The PA projection of the abdomen: a dose reducing technique. Radiography. 1998;4:195–203

PII: S1078-8174(10)00032-5

doi: 10.1016/j.radi.2010.02.007

Radiography
Volume 16, Issue 4 , Pages 304-313 , November 2010