Attenuation-based estimation of patient size for the purpose of size specific dose estimation in CT. Part I. Development and validation of methods using the CT image

Medical Physics

Volumn 39, Issue 11, 2012, Pages 6764-6771

  Wang, Jia ^a   Duan, Xinhui ^a   Christner, Jodie A ^a   Leng, Shuai ^a   Yu, Lifeng ^a   McCollough, Cynthia H ^a  

^a MAYO CLINIC   (United States)

Author keywords

CT dose; patient dose; patient size; size specific dose estimate; water equivalent diameter

Indexed keywords

ANALYTICAL MODELS; ATOMS; COMPUTERIZED TOMOGRAPHY; CYLINDERS (SHAPES); PEDIATRICS; PHANTOMS;

CLINICAL WORKSTATIONS; CROSS SECTIONAL AREA; DOSE ESTIMATES; PATIENT DOSE; PATIENT SIZE; QUADRATIC DEPENDENCE; WATER EQUIVALENT; WATER EQUIVALENT PHANTOMS;

MONTE CARLO METHODS;

EID: 84868553392     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.4754303     Document Type: Article

References (18)

1. C. H. McCollough, S. Leng, L. Yu, D. D. Cody, J. M. Boone, and M. F. McNitt-Gray, CT dose index and patient dose: They are not the same thing., Radiology 259, 311-316 (2011). 10.1148/radiol.11101800
2. A. C. Turner, M. Zankl, J. J. DeMarco, C. H. Cagnon, D. Zhang, E. Angel, D. D. Cody, D. M. Stevens, C. H. McCollough, and M. F. McNitt-Gray, The feasibility of a scanner-independent technique to estimate organ dose from MDCT scans: Using CTDIvol to account for differences between scanners., Med. Phys. 37, 1816-1825 (2010). 10.1118/1.3368596
3. A. Turner, D. Zhang, M. Khatonabadi, M. Zankl, J. Demarco, C. Cagnon, D. Cody, D. Stevens, C. H. McCollough, and M. F. McNitt-Gray, The feasibility of patient size-corrected, scanner-independent organ dose estimates for abdominal CT exams., Med. Phys. 38, 820-829 (2011). 10.1118/1.3533897
4. American Association of Physicists in Medicine, Size-specific dose estimates (SSDE) in pediatric and adult body CT examinations., (Task Group 204). College Park, MD, American Association of Physicists in Medicine, 2011.
5. W. Huda, E. M. Scalzetti, and M. Roskopf, Effective doses to patients undergoing thoracic computed tomography examinations., Med. Phys. 27, 838-844 (2000). 10.1118/1.598949
6. J. Menke, Comparison of different body size parameters for individual dose adaptation in body CT of adults., Radiology 236, 565-571 (2005). 10.1148/radiol.2362041327
7. T. Toth, Z. Ge, and M. P. Daly, The influence of patient centering on CT dose and image noise., Med. Phys. 34, 3093-3101 (2007). 10.1118/1.2748113
8. K. Stierstorfer, MOCASSIM: A Monte Carlo scatter simulation tool., Siemens Medical Engineering Internal Report (Siemens Medical Solutions, Forchheim, Germany, 1993).
9. M. Petersilka, Strategies for scatter correction in dual source CT., Med. Phys. 37, 5971-5992 (2010). 10.1118/1.3504606
10. S. T. Perkins and D. E. Cullen, ENDL type formats for the LLNL Evaluated Atomic Data Library, EADL, for the Evaluated Electron Data Library, EEDL, and for the Evaluated Photon Data Library, EPDL. (Lawrence Livermore National Laboratory, Livermore, CA, 1994).
11. K. Stierstorfer (personal communication, 2011).
12. R. L. Dixon, A new look at CT dose measurement: Beyond CTDI., Med. Phys. 30, 1272-1280 (2003). 10.1118/1.1576952
13. J. M. Boone, Dose spread functions in computed tomography: A Monte Carlo study., Med. Phys. 36, 4547-4554 (2009). 10.1118/1.3223634
14. W. Huda, J. V. Atherton, D. E. Ware, and W. A. Cumming, An approach for the estimation of effective radiation dose at CT in pediatric patients., Radiology 203, 417-422 (1997).
15. J. V. Atherton and W. Huda, CT doses in cylindrical phantoms., Phys. Med. Biol. 40, 891-911 (1995). 10.1088/0031-9155/40/5/012
16. B. Li, R. H. Behrman, and A. M. Norbash, Comparison of topogram-based body size indices for CT dose consideration and scan protocol optimization., Med. Phys. 39, 3456-3465 (2012). 10.1118/1.4718569
17. M. K. Kalra, M. M. Maher, T. L. Toth, B. Schmidt, B. L. Westerman, H. T. Morgan, and S. Saini, Techniques and applications of automatic tube current modulation for CT., Radiology 233, 649-657 (2004). 10.1148/radiol.2333031150
18. C. H. McCollough, M. R. Bruesewitz, and J. M. Kofler Jr., CT dose reduction and dose management tools: Overview of available options., Radiographics 26, 503-512 (2006). 10.1148/rg.262055138