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Clinical Neuroradiology

, Volume 26, Issue 1, pp 31–37 | Cite as

Novel Metal Artifact Reduction Techniques with Use of Slice-Encoding Metal Artifact Correction and View-Angle Tilting MR Imaging for Improved Visualization of Brain Tissue near Intracranial Aneurysm Clips

  • B. FriedrichEmail author
  • M. Wostrack
  • F. Ringel
  • Y. -M. Ryang
  • A. Förschler
  • S. Waldt
  • C. Zimmer
  • M. Nittka
  • C. Preibisch
Original Article

Abstract

Purpose

The MR image quality after intracranial aneurysm clipping is often impaired because of artifacts induced by metal implants. The purpose of the present study was to evaluate the benefit of a new WARP sequence with slice-encoding metal artifact correction (SEMAC) and view-angle tilting (VAT) MR imaging as novel artifact reduction techniques.

Materials and Methods

A new WARP TSE (a work-in-progress software package provided by Siemens Healthcare) sequence was implemented for cranial applications based on a turbo spin echo (TSE) sequence. T1- and T2-weighted images with standard and WARP TSE sequences were acquired from 6 patients with 11 clipping sites, and the images were compared based on artifact size and general image quality.

Results

T2- and T1-weighted WARP TSE sequences resulted in a highly significant reduction of metal artifacts compared with standard sequences (T2w- WARP TSE: 89.8 ± 1.4 %; T1w- WARP TSE: 84.9 ± 2.9 %; p < 0.001) without a substantial loss of image quality.

Conclusion

The use of a new WARP TSE sequence after aneurysm clipping is highly beneficial for increasing the diagnostic MR image quality due to a striking reduction of metal artifacts.

Keywords

SEMAC Clip Artifact MRI WARP 

Notes

Acknowledgment

We thank Siemens Healthcare for providing a work-in-progress software package (WARP WIP for Orthopedic Implant Imaging).

Conflict of Interest

None.

References

  1. 1.
    Molyneux A, Kerr R, Stratton I, Sandercock P, Clarke M, Shrimpton J, Holman R, International Subarachnoid Aneurysm Trial (ISAT) Collaborative Group. International Subarachnoid Aneurysm Trial (ISAT) of neurosurgical clipping versus endovascular coiling in 2143 patients with ruptured intracranial aneurysms: a randomised trial. Lancet. 2002;360:1267–74.CrossRefPubMedGoogle Scholar
  2. 2.
    Majoie CB, Sprengers ME, van Rooij WJ, Lavini C, Sluzewski M, van Rijn JC, den Heeten GJ. MR angiography at 3T versus digital subtraction angiography in the follow-up of intracranial aneurysms treated with detachable coils. AJNR Am J Neuroradiol. 2005;26:1349–56.PubMedGoogle Scholar
  3. 3.
    Romner B, Olsson M, Ljunggren B, Holtas S, Säveland H, Brandt L, Persson B. Magnetic resonance imaging and aneurysm clips. Magnetic properties and image artifacts. J Neurosurg. 1989;70:426–31.CrossRefPubMedGoogle Scholar
  4. 4.
    Olsrud J, Lätt J, Brockstedt S, Romner B, Björkman-Burtscher IM. Magnetic resonance imaging artifacts caused by aneurysm clips and shunt valves: dependence on field strength (1.5 and 3 T) and imaging parameters. J Magn Reson Imaging. 2005;22:433–7.CrossRefPubMedGoogle Scholar
  5. 5.
    Lüdeke KM, Röschmann P, Tischler R. Susceptibility artefacts in NMR imaging. Magn Reson Imaging. 1985;3:329–43.CrossRefPubMedGoogle Scholar
  6. 6.
    Graf H, Steidle G, Martirosian P, Lauer UA, Schick F. Metal artifacts caused by gradient switching. Magn Reson Med. 2005;54:231–4.CrossRefPubMedGoogle Scholar
  7. 7.
    Camacho CR, Plewes DB, Henkelman RM. Nonsusceptibility artifacts due to metallic objects in MR imaging. J Magn Reson Imaging. 1995;5:75–88.CrossRefPubMedGoogle Scholar
  8. 8.
    Lu W, Pauly KB, Gold GE, Pauly JM, Hargreaves BA. SEMAC: Slice Encoding for Metal Artifact Correction in MRI. Magn Reson Med. 2009;62:66–76.CrossRefPubMedPubMedCentralGoogle Scholar
  9. 9.
    Wichmann W, Von Ammon K, Fink U, Weik T, Yasargil GM. Aneurysm clips made of titanium: magnetic characteristics and artifacts in MR. AJNR Am J Neuroradiol. 1997;18:939–44.PubMedGoogle Scholar
  10. 10.
    Cho ZH, Kim DJ, Kim YK. Total inhomogeneity correction including chemical shifts and susceptibility by. Med Phys. 1988;15:7–11.CrossRefPubMedGoogle Scholar
  11. 11.
    Butts K, Pauly JM, Gold GE. Reduction of blurring in view angle tilting MRI. Magn Reson Med. 2005;53:418–24.CrossRefPubMedGoogle Scholar
  12. 12.
    Hargreaves BA, Chen W, Lu W, Alley MT, Gold GE, Brau AC, Pauly JM, Pauly KB. Accelerated slice encoding for metal artifact correction. J Magn Reson Imaging. 2010;31:987–96.CrossRefPubMedPubMedCentralGoogle Scholar
  13. 13.
    Chen CA, Chen W, Goodman SB, Hargreaves BA, Koch KM, Lu W, Brau AC, Draper CE, Delp SL, Gold GE. New MR imaging methods for metallic implants in the knee: artifact correction and clinical impact. J Magn Reson Imaging. 2011;33:1121–7.CrossRefPubMedPubMedCentralGoogle Scholar
  14. 14.
    Sutter R, Ulbrich EJ, Jellus V, Nittka M, Pfirrmann CW. Reduction of metal artifacts in patients with total hip arthroplasty with slice-encoding metal artifact correction and view-angle tilting MR imaging. Radiology. 2012;265:204–14.CrossRefPubMedGoogle Scholar
  15. 15.
    Zho SY, Kim MO, Lee KW, Kim DH. Artifact reduction from metallic dental materials in T1-weighted spin-echo imaging at 3.0 T. J Magn Reson Imaging. 2013;37:471–8.CrossRefPubMedGoogle Scholar
  16. 16.
    Goerner FL, Clarke GD. Measuring signal-to-noise ratio in partially parallel imaging MRI. Med Phys. 2011;38:5049–57.CrossRefPubMedPubMedCentralGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • B. Friedrich
    • 2
    • 1
    Email author
  • M. Wostrack
    • 3
  • F. Ringel
    • 3
  • Y. -M. Ryang
    • 3
  • A. Förschler
    • 1
  • S. Waldt
    • 4
  • C. Zimmer
    • 1
  • M. Nittka
    • 5
  • C. Preibisch
    • 1
  1. 1.Department of NeuroradiologyKlinikum rechts der IsarMunichGermany
  2. 2.Department of diagnostic and interventional RadiologyUniversity Hospital LeipzigLeipzigGermany
  3. 3.Department of NeurosurgeryKlinikum rechts der IsarMunichGermany
  4. 4.Department of RadiologyKlinikum rechts der IsarMunichGermany
  5. 5.Siemens HealthcareErlangenGermany

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