Neuroradiology

, Volume 45, Issue 7, pp 489–492

High-resolution 3D T2-weighted fast spin echo: new applications in the orbit

  • Erin M. Simon
  • Sharon McCaffery
  • Howard A. Rowley
  • Nancy J. Fischbein
  • Ann Shimikawa
  • Joan M. O'Brien
Head and Neck Radiology

DOI: 10.1007/s00234-003-0954-8

Cite this article as:
Simon, E.M., McCaffery, S., Rowley, H.A. et al. Neuroradiology (2003) 45: 489. doi:10.1007/s00234-003-0954-8

Abstract

Recent developments have made available for ophthalmologic MR imaging a very high-resolution 3D fast spin echo T2 (3D FSE T2) sequence, which runs in a standard head coil. A modification of this technique, 3D FSEz T2, uses a zero-filled slice interpolation method during post-processing to further improve spatial resolution. We describe the technique and share our early clinical observations in patients with ocular masses. Briefly, the additional information from the 3D FSEz T2 resulted in a change in diagnosis from the conventional imaging series in 11 of (41%) 27 studies, usually through the identification of previously treated retinoblastoma lesions. The new sequence significantly increased diagnostic confidence in six (38%) of the remaining 16 cases, usually through better anatomical detail and lesion conspicuity, and did not change interpretation in 10 cases. Such an approach improves diagnostic confidence and may eliminate the need for a dedicated surface coil examination.

Keywords

Magnetic resonance imaging Orbit Neoplasm Retinoblastoma 

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Erin M. Simon
    • 1
    • 2
  • Sharon McCaffery
    • 3
  • Howard A. Rowley
    • 1
    • 5
  • Nancy J. Fischbein
    • 1
  • Ann Shimikawa
    • 4
  • Joan M. O'Brien
    • 3
  1. 1.Department of RadiologyUniversity of California San FranciscoSan FranciscoUSA
  2. 2.Department of RadiologyThe Children's Hospital of PhiladelphiaPhiladelphiaUSA
  3. 3.Department of OphthalmologyUniversity of California San FranciscoSan FranciscoUSA
  4. 4.General Electric Medical SystemsMilwaukeeUSA
  5. 5.University of Wisconsin Medical SchoolMadisonUSA

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