CT enterography at 80 kVp with adaptive statistical iterative reconstruction versus at 120 kVp with standard reconstruction: Image quality, diagnostic adequacy, and dose reduction

American Journal of Roentgenology

Volumn 198, Issue 5, 2012, Pages 1084-1092

  Kaza, Ravi K ^a   Platt, Joel F ^a   Al Hawary, Mahmoud M ^a   Wasnik, Ashish ^a   Liu, Peter S ^a   Pandya, Amit ^a  

^a UNIVERSITY OF MICHIGAN HOSPITALS   (United States)

Author keywords

Adaptive statistical iterative reconstruction; CT enterography; Radiation dose; Small bowel

Indexed keywords

ADULT; AGED; ARTICLE; COMPUTED TOMOGRAPHIC ENTEROGRAPHY; COMPUTER ASSISTED TOMOGRAPHY; CONTROLLED STUDY; DIAGNOSTIC ACCURACY; DIAGNOSTIC IMAGING; DIAGNOSTIC VALUE; ENTERITIS; FEMALE; HUMAN; IMAGE QUALITY; IMAGE RECONSTRUCTION; MAJOR CLINICAL STUDY; MALE; MATHEMATICAL MODEL; PERFORMANCE MEASUREMENT SYSTEM; PREDICTIVE VALUE; PRIORITY JOURNAL; QUALITATIVE RESEARCH; RADIATION DOSE; RETROSPECTIVE STUDY; SCORING SYSTEM; SENSITIVITY AND SPECIFICITY; SIGNAL NOISE RATIO;

ADULT; AGED; AGED, 80 AND OVER; BODY WEIGHT; CONTRAST MEDIA; FEMALE; HUMANS; INFLAMMATORY BOWEL DISEASES; IOHEXOL; IOPAMIDOL; MALE; MIDDLE AGED; PREDICTIVE VALUE OF TESTS; RADIATION DOSAGE; RADIOGRAPHIC IMAGE INTERPRETATION, COMPUTER-ASSISTED; RADIOGRAPHY, ABDOMINAL; RADIOMETRY; RETROSPECTIVE STUDIES; SENSITIVITY AND SPECIFICITY; STATISTICS, NONPARAMETRIC; TOMOGRAPHY, X-RAY COMPUTED;

EID: 84860339698     PISSN: 0361803X     EISSN: 15463141     Source Type: Journal    
DOI: 10.2214/AJR.11.6597     Document Type: Article

References (37)

1. Paulsen SR, Huprich JE, Fletcher JG, et al. CT enterography as a diagnostic tool in evaluating small bowel disorders: review of clinical experience with over 700 cases. RadioGraphics 2006; 26:641-657; discussion, 657-662
2. Hara AK, Swartz PG. CT enterography of Crohn's disease. Abdom Imaging 2009; 34:289-295
3. Brenner DJ. Should computed tomography be the modality of choice for imaging Crohn's disease in children? The radiation risk perspective. Gut 2008; 57:1489-1490
4. Kalra MK, Maher MM, Toth TL, et al. Techniques and applications of automatic tube current modulation for CT. Radiology 2004; 233:649-657
5. Lee TY, Chhem RK. Impact of new technologies on dose reduction in CT. Eur J Radiol 2010; 76:28-35
6. Reid J, Gamberoni J, Dong F, Davros W. Optimization of kVp and mAs for pediatric low-dose simulated abdominal CT: is it best to base parameter selection on object circumference? AJR 2010; 195:1015-1020
7. Kalva SP, Sahani DV, Hahn PF, Saini S. Using the K-edge to improve contrast conspicuity and to lower radiation dose with a 16-MDCT: a phantom and human study. J Comput Assist Tomogr 2006; 30:391-397 (Pubitemid 43922255)
8. Nakayama Y, Awai K, Funama Y, et al. Lower tube voltage reduces contrast material and radiation doses on 16-MDCT aortography. AJR 2006; 187:1266; [web]W490-W497
9. Yanaga Y, Awai K, Funama Y, et al. Low-dose MDCT urography: feasibility study of low-tube-voltage technique and adaptive noise reduction filter. AJR 2009; 193:868; [web]W220-W229
10. Marin D, Nelson RC, Barnhart H, et al. Detection of pancreatic tumors, image quality, and radiation dose during the pancreatic parenchymal phase: effect of a low-tube-voltage, high-tube-current CT technique - preliminary results. Radiology 2010; 256:450-459
11. Marin D, Nelson RC, Schindera ST, et al. Low-tube-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
12. 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
13. Nakayama Y, Awai K, Funama Y, et al. Abdominal CT with low tube voltage: preliminary observations about radiation dose, contrast enhancement, image quality, and noise. Radiology 2005; 237:945-951 (Pubitemid 41636385)
14. Sunnegardh J, Danielsson PE. Regularized iterative weighted filtered backprojection for helical cone-beam CT. Med Phys 2008; 35:4173-4185
15. Wang J, Li T, Lu H, Liang Z. Penalized weighted least-squares approach to sinogram noise reduction and image reconstruction for low-dose X-ray computed tomography. IEEE Trans Med Imaging 2006; 25:1272-1283 (Pubitemid 46417077)
16. Hara AK, Paden RG, Silva AC, Kujak JL, Lawder HJ, Pavlicek W. Iterative reconstruction technique for reducing body radiation dose at CT: feasibility study. AJR 2009; 193:764-771
17. Prakash P, Kalra MK, Kambadakone AK, et al. Reducing abdominal CT radiation dose with adaptive statistical iterative reconstruction technique. Invest Radiol 2010; 45:202-210
18. International Commission on Radiological Protection. ICRP publication 60: 1990 Recommendations of the International Commission on Radiological Protection. Oxford, United Kingdom: Permagon, 1990
19. Nakaura T, Awai K, Oda S, et al. Low-kilovoltage, high-tube-current MDCT of liver in thin adults: pilot study evaluating radiation dose, image quality, and display settings. AJR 2011; 196:1332-1338
20. Allen BC, Baker ME, Einstein DM, et al. Effect of altering automatic exposure control settings and quality reference mAs on radiation dose, image quality, and diagnostic efficacy in MDCT enterography of active inflammatory Crohn's disease. AJR 2010; 195:89-100
21. Kambadakone AR, Prakash P, Hahn PF, Sahani DV. Low-dose CT examinations in Crohn's disease: impact on image quality, diagnostic performance, and radiation dose. AJR 2010; 195:78-88
22. McCollough CH, Primack AN, Braun N, Kofler J, Yu L, Christner J. Strategies for reducing radiation dose in CT. Radiol Clin North Am 2009; 47:27-40
23. Kambadakone AR, Chaudhary NA, Desai CG, Nguyen DD, Kulkarni NM, Sahani DV. Low-dose MDCT and CT enterography of patients with Crohn disease: feasibility of adaptive statistical iterative reconstruction. AJR 2011; 196:1340; [web]W743-W752
24. Guimarães LS, Fletcher JG, Yu L, et al. Feasibility of dose reduction using novel denoising techniques for low kV (80 kV) CT enterography: optimization and validation. Acad Radiol 2010; 17:1203-1210
25. Fletcher JG, Takahashi N, Hartman R, et al. Dual-energy and dual-source CT: is there a role in the abdomen and pelvis? Radiol Clin North Am 2009; 47:41-57
26. Yeh BM, Sheperd JA, Wang ZJ, Teh HS, Hartman RP, Prevrhal S. Dual-energy and low-kVp CT in the abdomen. AJR 2009; 193:47-54
27. Guimarães LS, Fletcher JG, Harmsen WS, et al. Appropriate patient selection at abdominal dual-energy CT using 80 kV: relationship between patient size, image noise, and image quality. Radiology 2010; 257:732-742
28. Keller MR, Kessler RM, Brooks RA, Kirkland LR. Optimum energy for performing CT iodinated contrast studies. Br J Radiol 1980; 53:576-579 (Pubitemid 10105389)
29. Watanabe H, Kanematsu M, Miyoshi T, et al. Improvement of image quality of low radiation dose abdominal CT by increasing contrast enhancement. AJR 2010; 195:986-992
30. Yanaga Y, Awai K, Nakaura T, et al. Hepatocellular carcinoma in patients weighing 70 kg or less: initial trial of compact-bolus dynamic CT with low-dose contrast material at 80 kVp. AJR 2011; 196:1324-1331
31. Silva AC, Lawder HJ, Hara A, Kujak J, Pavlicek W. Innovations in CT dose reduction strategy: application of the adaptive statistical iterative reconstruction algorithm. AJR 2010; 194:191-199
32. Sagara Y, Hara AK, Pavlicek W, Silva AC, Paden RG, Wu Q. Abdominal CT: comparison of low-dose CT with adaptive statistical iterative reconstruction and routine-dose CT with filtered back projection in 53 patients. AJR 2010; 195:713-719
33. Schindera ST, Diedrichsen L, Müller HC, et al. Iterative reconstruction algorithm for abdominal multidetector CT at different tube voltages: assessment of diagnostic accuracy, image quality, and radiation dose in a phantom study. Radiology 2011; 260:454-462
34. Yu Z, Thibault JB, Bouman CA, Sauer KD, Hsieh J. Fast model-based x-ray CT reconstruction using spatially nonhomogeneous ICD optimization. IEEE Trans Image Process 2011; 20:161-175
35. Martinsen AC, Saether HK, Olsen DR, Skaane P, Olerud HM. Reduction in dose from CT examinations of liver lesions with a new postprocessing filter: a ROC phantom study. Acta Radiol 2008; 49:303-309
36. American College of Radiology Website. ACR practice guideline for diagnostic reference levels in medical x-ray imaging. www.acr.org/ SecondaryMainMenuCategories/quality-safety/guidelines/ med-phys/reference- levels.aspx. Published 2008. Accessed February 2, 2012
37. Fletcher JG. CT enterography technique: theme and variations. Abdom Imaging 2009; 34:283-288