A practical approach to estimate the weighted CT dose index over an infinite integration length

Physics in Medicine and Biology

Volumn 56, Issue 18, 2011, Pages 5789-5803

  Li, Xinhua ^a   Zhang, Da ^a   Liu, Bob ^a  

^a MASSACHUSETTS GENERAL HOSPITAL   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BEAM WIDTHS; CT SCAN; CT SCANNERS; LENGTH AND POSITION; LIMITING EQUILIBRIUM; MULTI-DETECTORS; PHANTOM MEASUREMENTS; RADIATION DOSE; SCAN-PLANES; SIMULATION STUDIES;

COMPUTER SIMULATION; ESTIMATION; INTEGRATION; SCANNING;

COMPUTERIZED TOMOGRAPHY;

ADULT; ARTICLE; BODY BURDEN; CHILD; COMPUTER SIMULATION; GENERAL DEVICE; HUMAN; IMAGE QUALITY; METHODOLOGY; RADIATION DOSE; RISK ASSESSMENT;

ADULT; BODY BURDEN; CHILD; COMPUTER SIMULATION; HUMANS; PHANTOMS, IMAGING; RADIATION DOSAGE; RISK ASSESSMENT; TOMOGRAPHY SCANNERS, X-RAY COMPUTED;

EID: 80052680421     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/56/18/002     Document Type: Article

References (26)

1. Agostinelli S et al 2003 Geant4 - a simulation toolkit Nucl. Instrum. Methods A 506 250-303
2. Allison J et al 2006 Geant4 developments and applications IEEE Trans. Nucl. Sci. 53 270-8
3. Amako K et al 2005 Comparison of Geant4 electromagnetic physics models against the NIST reference data IEEE Trans. Nucl. Sci. 52 910-8 (Pubitemid 41561732)
4. Berger M J et al 2011 XCOM: Photon Cross Sections Database NIST Standard Reference Database 8 (XGAM), http://www.nist.gov/pml/data/xcom/index.cfm (accessed 3 June 2011)
5. 100 Med. Phys. 34 1364-71 (Pubitemid 46555766)
6. Boone J M and Seibert J A 1997 An accurate method for computer-generating tungsten anode x-ray spectra from 30 to 140 kV Med. Phys. 24 1661-70 (Pubitemid 27495900)
7. Brenner D J and Hall E J 2007 Computed tomography - an increasing source of radiation exposure N. Engl. J. Med. 357 2277-84 (Pubitemid 350190758)
8. Brenner D J 2005 Is it time to retire the CTDI for quality assurance and dose optimization? Med. Phys. 32 3225-6 (Pubitemid 41513112)
9. Dixon R L 2003 A new look at CT dose measurement: beyond CTDI Med. Phys. 30 1272-80 (Pubitemid 36735994)
10. 100 Med. Phys. 34 3399-413 (Pubitemid 47175805)
11. Dixon R L and Boone J 2010 The CTDI paradigm: a practical explanation for medical physicists http://www.imagewisely.org/Imaging-Professionals/Medical- Physicists/Articles/The-CTDI-Paradigm.aspx (accessed 3 June 2011)
12. International Electrotechnical Commission (IEC) 2002 Medical electrical equipment part 2-44: particular requirements for the safety of x-ray equipment for computed tomography IEC Publication No 60601-2-44 Ed. 2.1 (Geneva: International Electrotechnical Commission (IEC) Central Office)
13. Jessen K A et al 2000 European guidelines on quality criteria for computed tomography EUR 16262 (Luxembourg: Office for Official Publications of the European Communities)
14. Jucius R A and Kambic G X 1977 Radiation dosimetry in computed tomography (CT) Proc. SPIE 127 286-95
15. Leitz W, Axelsson B and Szendrö G 1995 Computed tomography dose assessment - a practical approach Radiat. Prot. Dosim. 57 377-80
16. McCollough C H, Leng S, Yu L, Cody D D, Boone J M and McNitt-Gray M F 2011 CT dose index and patient dose: they are not the same thing Radiology 259 311-6
17. Mori S, Endo M, Nishizawa K, Tsunoo T, Aoyama T, Fujiwara H and Murase K 2005 Enlarged longitudinal dose profiles in cone-beam CT and the need for modified dosimetry Med. Phys. 32 1061-9 (Pubitemid 40586792)
18. Mori S, Endo M, Nishizawa K, Tsunoo T, Aoyama T, Fujiwara H and Murase K 2006 Med. Phys. 33 250 (erratum)
19. Nakonechny K D, Fallone B G and Rathee S 2005 Novel methods of measuring single scan dose profiles and cumulative dose in CT Med. Phys. 32 98-109 (Pubitemid 40165521)
20. National Council on Radiation Protection and Measurements 2009 Ionizing radiation exposure of the population of the United States National Council on Radiation Protection Report No 160 (Bethesda, MD: National Council on Radiation Protection and Measurements)
21. Nickoloff E L, Lu Z F, Dutta A K and So J C 2008 Radiation dose descriptors: BERT,COD, DAP, and other strange creatures Radio Graphics 28 1439-50
22. Perisinakis K, Damilakis J, Tzedakis A, Papadakis A, Theocharopoulos N and Gourtsoyiannis N 2007 Determination of the weighted CT dose index in modern multi-detector CT scanners Phys. Med. Biol. 52 6485-95 (Pubitemid 350093176)
23. Ruan C, Yukihara E G, Clouse W J, Gasparian P B and Ahmad S 2010 Determination of multislice computed tomography dose index (CTDI) using optically stimulated luminescence technology Med. Phys. 37 3560-8
24. Shope T B, Gagne R M and Johnson G C 1981 A method for describing the dose delivered by transmission x-ray computed tomography Med. Phys. 8 488-95 (Pubitemid 11122522)
25. Smith-Bindman R et al 2009 Radiation dose associated with common computed tomography examinations and the associated lifetime attributable risk of cancer Arch. Intern. Med. 169 2078-86
26. Suzuki A and Suzuki M N 1978 Use of a pencil-shaped ionization chamber for measurement of exposure resulting from a computed tomography scan Med. Phys. 5 536-9 (Pubitemid 9067466)