DOI QR코드

DOI QR Code

Improvement of Fat Suppression and Artifact Reduction Using IDEAL Technique in Head and Neck MRI at 3T

  • Hong, Jin Ho (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Lee, Ha Young (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Kang, Young Hye (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Lim, Myung Kwan (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Kim, Yeo Ju (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Cho, Soon Gu (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Kim, Mi Young (Department of Radiology, Inha University Hospital, Inha University School of Medicine)
  • Received : 2016.03.17
  • Accepted : 2016.03.22
  • Published : 2016.03.30

Abstract

Purpose: To quantitatively and qualitatively compare fat-suppressed MRI quality using iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) with that using frequency selective fat-suppression (FSFS) T2- and postcontrast T1-weighted fast spin-echo images of the head and neck at 3T. Materials and Methods: The study was approved by our Institutional Review Board. Prospective MR image analysis was performed in 36 individuals at a single-center. Axial fat suppressed T2- and postcontrast T1-weighted images with IDEAL and FSFS were compared. Visual assessment was performed by two independent readers with respect to; 1) metallic artifacts around oral cavity, 2) susceptibility artifacts around upper airway, paranasal sinus, and head-neck junction, 3) homogeneity of fat suppression, 4) image sharpness, 5) tissue contrast of pathologies and lymph nodes. The signal-to-noise ratios (SNR) for each image sequence were assessed. Results: Both IDEAL fat suppressed T2- and T1-weighted images significantly reduced artifacts around airway, paranasal sinus, and head-neck junction, and significantly improved homogeneous fat suppression in compared to those using FSFS (P < 0.05 for all). IDEAL significantly decreased artifacts around oral cavity on T2-weighted images (P < 0.05, respectively) and improved sharpness, lesion-to-tissue, and lymph node-to-tissue contrast on T1-weighted images (P < 0.05 for all). The mean SNRs were significantly improved on both T1- and T2-weighted IDEAL images (P < 0.05 for all). Conclusion: IDEAL technique improves image quality in the head and neck by reducing artifacts with homogeneous fat suppression, while maintaining a high SNR.

Acknowledgement

Supported by : Inha University Hospital

References

  1. Ross MR, Schomer DF, Chappell P, Enzmann DR. MR imaging of head and neck tumors: comparison of T1- weighted contrast-enhanced fat-suppressed images with conventional T2-weighted and fast spin-echo T2-weighted images. AJR Am J Roentgenol 1994;163:173-178 https://doi.org/10.2214/ajr.163.1.8010208
  2. Finkenzeller T, Zorger N, Kuhnel T, et al. Novel application of T1-weighted BLADE sequences with fat suppression compared to TSE in contrast-enhanced T1-weighted imaging of the neck: cutting-edge images? J Magn Reson Imaging 2013;37:660-668 https://doi.org/10.1002/jmri.23843
  3. Petersilge CA, Lewin JS, Duerk JL, Yoo JU, Ghaneyem AJ. Optimizing imaging parameters for MR evaluation of the spine with titanium pedicle screws. AJR Am J Roentgenol 1996;166:1213-1218 https://doi.org/10.2214/ajr.166.5.8615272
  4. Gerdes CM, Kijowski R, Reeder SB. IDEAL imaging of the musculoskeletal system: robust water fat separation for uniform fat suppression, marrow evaluation, and cartilage imaging. AJR Am J Roentgenol 2007;189:W284-291 https://doi.org/10.2214/AJR.07.2593
  5. Chen CA, Lu W, John CT, et al. Multiecho IDEAL gradientecho water-fat separation for rapid assessment of cartilage volume at 1.5 T: initial experience. Radiology 2009;252:561-567 https://doi.org/10.1148/radiol.2522081424
  6. Kijowski R, Woods MA, Lee KS, et al. Improved fat suppression using multipeak reconstruction for IDEAL chemical shift fat-water separation: application with fast spin echo imaging. J Magn Reson Imaging 2009;29:436-442 https://doi.org/10.1002/jmri.21664
  7. Grayev A, Shimakawa A, Cousins J, Turski P, Brittain J, Reeder S. Improved time-of-flight magnetic resonance angiography with IDEAL water-fat separation. J Magn Reson Imaging 2009;29:1367-1374 https://doi.org/10.1002/jmri.21780
  8. Murakami M, Mori H, Kunimatsu A, et al. Postsurgical spinal magnetic resonance imaging with iterative decomposition of water and fat with echo asymmetry and least-squares estimation. J Comput Assist Tomogr 2011;35:16-20 https://doi.org/10.1097/RCT.0b013e3181f8d30d
  9. Cha JG, Jin W, Lee MH, et al. Reducing metallic artifacts in postoperative spinal imaging: usefulness of IDEAL contrastenhanced T1- and T2-weighted MR imaging--phantom and clinical studies. Radiology 2011;259:885-893 https://doi.org/10.1148/radiol.11101856
  10. Ren AJ, Guo Y, Tian SP, Shi LJ, Huang MH. MR imaging of the spine at 3.0T with T2-weighted IDEAL fast recovery fast spin-echo technique. Korean J Radiol 2012;13:44-52 https://doi.org/10.3348/kjr.2012.13.1.44
  11. Lee JB, Cha JG, Lee MH, Lee YK, Lee EH, Jeon CH. Usefulness of IDEAL T2-weighted FSE and SPGR imaging in reducing metallic artifacts in the postoperative ankles with metallic hardware. Skeletal Radiol 2013;42:239-247 https://doi.org/10.1007/s00256-012-1449-7
  12. Aoki T, Yamashita Y, Oki H, et al. Iterative decomposition of water and fat with echo asymmetry and leastsquares estimation (IDEAL) of the wrist and finger at 3T: comparison with chemical shift selective fat suppression images. J Magn Reson Imaging 2013;37:733-738 https://doi.org/10.1002/jmri.23795
  13. Costa DN, Pedrosa I, McKenzie C, Reeder SB, Rofsky NM. Body MRI using IDEAL. AJR Am J Roentgenol 2008;190:1076-1084 https://doi.org/10.2214/AJR.07.3182
  14. Fuller S, Reeder S, Shimakawa A, et al. Iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) fast spin-echo imaging of the ankle: initial clinical experience. AJR Am J Roentgenol 2006;187:1442-1447 https://doi.org/10.2214/AJR.05.0930
  15. Reeder SB, Pineda AR, Wen Z, et al. Iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL): application with fast spin-echo imaging. Magn Reson Med 2005;54:636-644 https://doi.org/10.1002/mrm.20624
  16. Barger AV, DeLone DR, Bernstein MA, Welker KM. Fat signal suppression in head and neck imaging using fast spin-echo-IDEAL technique. AJNR Am J Neuroradiol 2006;27:1292-1294
  17. Ma J, Jackson EF, Kumar AJ, Ginsberg LE. Improving fatsuppressed T2-weighted imaging of the head and neck with 2 fast spin-echo dixon techniques: initial experiences. AJNR Am J Neuroradiol 2009;30:42-45 https://doi.org/10.3174/ajnr.A1132
  18. Chang HC, Juan CJ, Chiu HC, et al. Parotid fat contents in healthy subjects evaluated with iterative decomposition with echo asymmetry and least squares fat-water separation. Radiology 2013;267:918-923 https://doi.org/10.1148/radiol.12112599
  19. Dietrich O, Raya JG, Reeder SB, Reiser MF, Schoenberg SO. Measurement of signal-to-noise ratios in MR images: influence of multichannel coils, parallel imaging, and reconstruction filters. J Magn Reson Imaging 2007;26:375-385 https://doi.org/10.1002/jmri.20969
  20. Tartaglino LM, Flanders AE, Vinitski S, Friedman DP. Metallic artifacts on MR images of the postoperative spine: reduction with fast spin-echo techniques. Radiology 1994;190:565-569 https://doi.org/10.1148/radiology.190.2.8284417
  21. Laakman RW, Kaufman B, Han JS, et al. MR imaging in patients with metallic implants. Radiology 1985;157:711-714 https://doi.org/10.1148/radiology.157.3.4059558
  22. Bellon EM, Haacke EM, Coleman PE, Sacco DC, Steiger DA, Gangarosa RE. MR artifacts: a review. AJR Am J Roentgenol 1986;147:1271-1281 https://doi.org/10.2214/ajr.147.6.1271
  23. Delfaut EM, Beltran J, Johnson G, Rousseau J, Marchandise X, Cotten A. Fat suppression in MR imaging: techniques and pitfalls. Radiographics 1999;19:373-382 https://doi.org/10.1148/radiographics.19.2.g99mr03373
  24. Frahm J, Haase A, Hanicke W, Matthaei D, Bomsdorf H, Helzel T. Chemical shift selective MR imaging using a whole-body magnet. Radiology 1985;156:441-444 https://doi.org/10.1148/radiology.156.2.4011907
  25. Ma J. Dixon techniques for water and fat imaging. J Magn Reson Imaging 2008;28:543-558 https://doi.org/10.1002/jmri.21492
  26. Shellock FG. MR imaging of metallic implants and materials: a compilation of the literature. AJR Am J Roentgenol 1988;151:811-814 https://doi.org/10.2214/ajr.151.4.811
  27. New PF, Rosen BR, Brady TJ, et al. Potential hazards and artifacts of ferromagnetic and nonferromagnetic surgical and dental materials and devices in nuclear magnetic resonance imaging. Radiology 1983;147:139-148 https://doi.org/10.1148/radiology.147.1.6828719
  28. Shellock FG, Morisoli S, Kanal E. MR procedures and biomedical implants, materials, and devices: 1993 update. Radiology 1993;189:587-599 https://doi.org/10.1148/radiology.189.2.8210394
  29. Taber KH, Herrick RC, Weathers SW, Kumar AJ, Schomer DF, Hayman LA. Pitfalls and artifacts encountered in clinical MR imaging of the spine. Radiographics 1998;18:1499-1521 https://doi.org/10.1148/radiographics.18.6.9821197