Dual-energy MDCT in hypervascular liver tumors: effect of body size on selection of the optimal monochromatic energy level

American Journal of Roentgenology

Volumn 203, Issue 6, 2014, Pages 1257-1264

  Mileto, Achille ^a   Nelson, Rendon C ^a   Samei, Ehsan ^a   Choudhury, Kingshuk Roy ^a   Jaffe, Tracy A ^a   Wilson, Joshua M ^a   Marin, Daniele ^a  

^a DUKE UNIVERSITY MEDICAL CENTER   (United States)

Author keywords

Body size; Dual energy CT; Hypervascular liver tumors; MDCT; Virtual monochromatic imaging

Indexed keywords

IOPAMIDOL;

ADULT; AGED; ARTICLE; BODY SIZE; COMPUTED TOMOGRAPHY SCANNER; CONTRAST TO NOISE RATIO; CONTROLLED STUDY; DUAL ENERGY MULTIDETECTOR COMPUTED TOMOGRAPHY; FEMALE; HUMAN; IMAGE QUALITY; LIVER TUMOR; MAJOR CLINICAL STUDY; MALE; MULTIDETECTOR COMPUTED TOMOGRAPHY; PRIORITY JOURNAL; RADIATION ENERGY; RETROSPECTIVE STUDY; COMPLICATION; COMPUTER ASSISTED DIAGNOSIS; DEVICES; NEOVASCULARIZATION (PATHOLOGY); PATHOPHYSIOLOGY; PROCEDURES; RADIATION DOSE; RADIOGRAPHY; REPRODUCIBILITY; SENSITIVITY AND SPECIFICITY; SIGNAL NOISE RATIO;

BODY SIZE; HUMANS; LIVER NEOPLASMS; MULTIDETECTOR COMPUTED TOMOGRAPHY; NEOVASCULARIZATION, PATHOLOGIC; PHANTOMS, IMAGING; RADIATION DOSAGE; RADIOGRAPHIC IMAGE ENHANCEMENT; RADIOGRAPHIC IMAGE INTERPRETATION, COMPUTER-ASSISTED; RADIOGRAPHY, DUAL-ENERGY SCANNED PROJECTION; REPRODUCIBILITY OF RESULTS; SENSITIVITY AND SPECIFICITY; SIGNAL-TO-NOISE RATIO;

EID: 84925231339     PISSN: 0361803X     EISSN: 15463141     Source Type: Journal    
DOI: 10.2214/AJR.13.12229     Document Type: Article

References (22)

1. Matsumoto K, Jinzaki M, Tanami Y, Ueno A, Yamada M, Kuribayashi S. Virtual monochromatic spectral imaging with fast kilovoltage switching: improved image quality as compared with that obtained with conventional 120-kVp CT. Radiology 2011; 259:257-262
2. Lv P, Lin XZ, Chen K, Gao J. Spectral CT in patients with small HCC: investigation of image quality and diagnostic accuracy. Eur Radiol 2012; 22:2117-2124
3. Yu L, Leng S, McCollough CH. Dual-energy CTbased monochromatic imaging. AJR 2012; 199(suppl 5): S9-S15
4. Wu X, Langan DA, Xu D, et al. Monochromatic CT image representation via fast switching dual kVp. Proc SPIE 2009; 7258:1-9
5. Goodsitt MM, Christodoulou EG, Larson SC. Accuracies of the synthesized monochromatic CT numbers and effective atomic numbers obtained with a rapid kVp switching dual energy CT scanner. Med Phys 2011; 38:2222-2232
6. Venema HW. Virtual monochromatic spectral imaging with fast kilovoltage switching should not be used as standard CT imaging modality. Radiology 2011; 260:916-917
7. Kalender WA, Deak P, Kellermeier M, van Straten M, Vollmar SV. Application-and patient size-dependent optimization of x-ray spectra for CT. Med Phys 2009; 36:993-1007
8. Yu L, Christner JA, Leng S, Wang J, Fletcher JG, McCollough CH. Virtual monochromatic imaging in dual-source dual-energy CT: radiation dose and image quality. Med Phys 2011; 38:6371-6379
9. Husarik DB, Marin D, Samei E, et al. Radiation dose reduction in abdominal computed tomography during the late hepatic arterial phase using a modelbased iterative reconstruction algorithm: how low can we go? Invest Radiol 2012; 47:468-474
10. Chen B, Marin D, Richard S, Husarik D, Nelson R, Samei E. Precision of iodine quantification in hepatic CT: effects of iterative reconstruction with various imaging parameters. AJR 2013; 200:[web]W475-W482
11. Marin D, Nelson RC, Samei E, et al. Hypervascular liver tumors: low tube voltage, high tube current multidetector CT during late hepatic arterial phase for detection-initial clinical experience. Radiology 2009; 251:771-779
12. 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
13. Brady SL, Kaufman RA. Investigation of American Association of Physicists in Medicine report 204 Size-specific dose estimates for pediatric CT implementation. Radiology 2012; 265: 832-840
14. Bossuyt PM, Reitsma JB, Bruns DE, et al. Towards complete and accurate reporting of studies of diagnostic accuracy: the STARD Initiative. Radiology 2003; 226:24-28
15. Sica GT. Bias in research studies. Radiology 2006; 238:780-789
16. Schindera ST, Tock I, Marin D, et al. Effect of beam-hardening on arterial enhancement in thoracoabdominal CT angiography with increasing patient size: an in vitro and in vivo study. Radiology 2010; 256:528-535
17. Marin D, Nelson RC, Schindera ST, et al. Lowtube-voltage, high-tube-current multidetector abdominal CT: improved image quality and decreased radiation dose with adaptive statistical iterative reconstruction algorithm-initial clinical experience. Radiology 2010; 254:145-153
18. Samei E. Performance of digital radiography detectors: factors affecting sharpness and noise. In: Samei E, Flynn MJ, eds. RSNA 2003. Oak Brook, IL: Radiological Society of North America, 2003; 49-61
19. Boedeker KL, McNitt-Gray MF. Application of the noise power spectrum in modern diagnostic MDCT. Part II. Noise power spectra and signal to noise. Phys Med Biol 2007; 52:4047-4061
20. Samei E, Ranger NT, MacKenzie A, Honey ID, Dobbins JT, Ravin CE. Detector or system? Extending the concept of detective quantum efficiency to characterize the performance of digital radiographic imaging systems. Radiology 2008; 249:926-937
21. Richard S, Husarik DB, Yadava G, Murphy SN, Samei E. Towards task-based assessment of CT performance: system and object MTF across different reconstruction algorithms. Med Phys 2012; 39:4115-4122
22. Solomon JB, Li X, Samei E. Relating noise to image quality indicators in CT examinations with tube current modulation. AJR 2013; 200:592-600