Determination of the weighted CT dose index in modern multi-detector CT scanners

Physics in Medicine and Biology

Volumn 52, Issue 21, 2007, Pages 6485-6495

  Perisinakis, K ^a   Damilakis, J ^a   Tzedakis, A ^a   Papadakis, A ^a   Theocharopoulos, N ^a,b   Gourtsoyiannis, N ^a  

^a UNIVERSITY OF CRETE   (Greece)

^b TECHNOLOGICAL EDUCATIONAL INSTITUTE OF CRETE   (Greece)

Author keywords

[No Author keywords available]

Indexed keywords

DOSIMETERS; MONTE CARLO METHODS; OPTICAL COLLIMATORS; POLYMETHYL METHACRYLATES; RADIATION; SCANNING; THERMOLUMINESCENCE;

CT DOSE INDEX; OPTIMUM PENCIL-CHAMBER LENGTH; PENCIL IONIZATION CHAMBER; PHANTOMS;

COMPUTERIZED TOMOGRAPHY;

ARTICLE; COLLIMATOR; COMPUTER ASSISTED TOMOGRAPHY; DIAGNOSTIC ACCURACY; IONIZATION CHAMBER; MONTE CARLO METHOD; MULTIDETECTOR COMPUTED TOMOGRAPHY; PHANTOM; PRIORITY JOURNAL; RADIATION DOSE; RADIATION DOSE DISTRIBUTION; THERMOLUMINESCENCE; ULTRASOUND SCANNER;

EID: 36048934442     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/52/21/010     Document Type: Article

References (24)

1. AAPM 1990 Standardized methods for measuring diagnostic x-ray exposures AAPM Report No 31 (New York: American Association of Physicists in Medicine)
2. 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
3. 100 Med. Phys. 34 1364-71
4. Bozkurt A and Bor D 2007 Simultaneous determination of equivalent dose to organs and tissues of the patient and of the physician in interventional radiology using the Monte Carlo method Phys. Med. Biol. 52 317-30
5. Brenner D J 2005 Is it time to retire the CTDI for quality assurance and dose optimization? Med. Phys. 32 3225-6
6. Brenner D J, McCollough C H and Orton C G 2006 It is time to retire the computed tomography dose index (CTDI) for quality assurance and dose optimization Med. Phys. 33 1189-91
7. CEC 1999 Quality criteria for computed tomography, European guidelines EUR 16262 (Luxemburg: Commission of the European Communities)
8. Damilakis J, Tzedakis A, Sideri L, Perisinakis K and Gourtsoyiannis N 2002 Normalized conceptus doses for abdominal radiographic examinations calculated using a Monte Carlo technique Med. Phys. 29 2641-8
9. Dixon R L 2003 A new look at CT dose measurement: Beyond CTDI Med. Phys. 30 1272-80
10. ImPACT 2002 CT Patient Dosimetry Calculator, version 0.99m Imaging performance assessment of CT available at http://www.impactscan.org/ctdosimetry. htm
11. IEC 1999 Medical electrical equipment-part 2: particular requirements for the safety of x-ray equipment for computed tomography IEC International Standard 60601-2-44
12. Jessen K A, Shrimpton P C, Geleijns J, Panzer W and Tosi G 1999 Dosimetry for optimization of patient protection in computed tomography Appl. Radiat. Isot. 50 165-72
13. Jones D G and Shrimpton P C 1993 Normalized organ doses for x-ray computed tomography calculated using Monte Carlo techniques NRPB SR250 (Chilton: HMSO) (software)
14. Kalender W A, Schmidt B, Zankl M and Schmidt M 1999 A PC program for estimating organ dose and effective dose values in computed tomography Eur. Radiol. 9 555-62
15. Khursheed A, Hillier M C, Shrimpton P C and Wall B F 2002 Influence of patient age on normalized effective dose calculated for CT examinations Br. J. Radiol. 75 819-30
16. McNitt-Gray M F 2002 AAPM/RSNA physics tutorial for residents: topics in CT. Radiation dose in CT Radiographics 22 1541-53
17. Metzger R L and Van Riper K A 1999 Fetal dose assessment from invasive procedures by Monte Carlo methods Med. Phys. 26 1714-20
18. 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
19. Nakonechny K, 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
20. Perisinakis K, Raissaki M, Tzedakis A, Theocharopoulos N, Damilakis J and Gourtsoyiannis N 2005 Reduction of eye lens radiation dose by orbital bismuth shielding in pediatric patients undergoing CT of the head: a Monte Carlo study Med. Phys. 32 1024-30
21. Shope T, Gagne R and Johnson G 1981 A method for describing the doses delivered by transmission x-ray computed tomography Med. Phys. 8 488-95
22. Staton R J, Lee C, Lee C, Williams M D, Hintenlang D E, Arreola M M, Williams J L and Bolch W E 2006 Organ and effective doses in newborn patients during helical multislice computed tomography examination Phys. Med. Biol. 51 5151-66
23. Tzedakis A, Damilakis J, Perisinakis K, Stratakis J and Gourtsoyiannis N 2005 The effect of z-overscanning on patient effective dose from multi-detector spiral computed tomography examinations Med. Phys. 32 1621-9
24. Tzedakis A, Damilakis J, Perisinakis K, Karantanas A, Karabekios S and Gourtsoyiannis N 2005 Influence of z overscanning on normalized effective doses calculated for pediatric patients undergoing multidetector CT examinations Med. Phys. 34 1163-75