Brain lesions in patients with multiple sclerosis: Detection with echo- planar imaging

Bettina Siewert, Mahesh R. Patel, Markus F. Mueller, Jochen Gaa, David G. Darby, Charles M. Poser, Piotr A. Wielopolski, Robert R. Edelman, Steven Warach

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

PURPOSE: To evaluate the detection of brain lesions with echo-planar imaging relative to conventional spin-echo (SE) imaging. MATERIALS AND METHODS: In 17 patients (three men, 14 women; mean age, 31 years) with multiple sclerosis, the following were compared: single-shot proton-density- and T2-weighted and thin-section T2-weighted echo-planar, proton-density- and T2-weighted multishot echo-planar, and conventional SE sequences. Quantitative and qualitative criteria as well as lesion detectability were evaluated. The proton-density-weighted SE sequence was used as the standard of reference. RESULTS: Multishot sequences were superior to single-shot sequences in image quality and lesion detectability. With the multishot proton-density-weighted sequence, 53 of 54 large lesions and 23 of 30 small lesions were detected; with the single-shot proton-density-weighted sequence, 38 of 54 large lesions and five of 30 small lesions were detected. CONCLUSION: With multishot echo-planar sequences, detectability of large lesions is similar to that with conventional SE imaging. Susceptibility artifact is diminished in comparison to single-shot echo-planar sequences.

Original languageEnglish (US)
Pages (from-to)765-771
Number of pages7
JournalRADIOLOGY
Volume196
Issue number3
DOIs
StatePublished - Jan 1 1995

Keywords

  • Brain neoplasms, MR
  • Magnetic resonance (MR)
  • Magnetic resonance (MR), comparative studies
  • Sclerosis, multiple
  • echo planar

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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    Siewert, B., Patel, M. R., Mueller, M. F., Gaa, J., Darby, D. G., Poser, C. M., Wielopolski, P. A., Edelman, R. R., & Warach, S. (1995). Brain lesions in patients with multiple sclerosis: Detection with echo- planar imaging. RADIOLOGY, 196(3), 765-771. https://doi.org/10.1148/radiology.196.3.7644641