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Usefulness of three-dimensional T1-weighted spoiled gradient-recalled echo and three-dimensional heavily T2-weighted images in preoperative evaluation of spinal dysraphism

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Abstract

Purpose

The aim of this study was to evaluate the usefulness of three-dimensional T1-weighted spoiled gradient-recalled echo (3D T1-GRE) images for the preoperative anatomical evaluation of lumbosacral lipoma, thick filum terminale, and myelomeningocele as a means of compensating for the drawbacks of 3D heavily T2-weighted (3D hT2-W) images.

Methods

Nine patients with lumbosacral lipomas, one patient with tight filum terminale, and five patients with myelomeningoceles were included in this study. 3D T1-GRE images were compared with 3D hT2-W images or conventional magnetic resonance images in terms of delineation of lipomas and other structures in the patients with lipomas and tight filum terminale. For patients with myelomeningoceles, 3D T1-GRE images were compared with 3D hT2-W images in terms of artifacts in the cerebrospinal fluid (CSF) space.

Results

The 3D T1-GRE images demonstrated lipomas with good contrast to the spinal cord and CSF space and more clearly delineated the anatomical relationship between lipomas and these structures than did the 3D hT2-W images. The 3D T1-GRE images delineated dural defects through which extradural lipomas penetrated into the intradural space. The 3D T1-GRE images also demonstrated the presence or absence of lipomas in the filum terminale and the absence of artifact in the myelomeningoceles. Furthermore, they were useful for differentiating artifacts observed on the 3D hT2-W images from nerve elements.

Conclusions

The complementary use of 3D T1-GRE and 3D hT2-W images may compensate for the drawbacks of 3D hT2-W images and may eventually improve lesion visualization and surgical decision making.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Neurosurgery, Kyushu University, Fukuoka, Japan

    Nobuya Murakami, Akira Nakamizo, Toshiyuki Amano, Nobuhiro Hata & Tomio Sasaki

  2. Department of Neurosurgery, Kyushu Rosai Hospital, Kitakyushu, Japan

    Takato Morioka

  3. Department of Neurosurgery, Iizuka Hospital, Iizuka, Japan

    Kimiaki Hashiguchi

  4. Department of Clinical Radiology, Kyushu University, Fukuoka, Japan

    Takashi Yoshiura & Akio Hiwatashi

  5. Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan

    Nobuya Murakami

  6. Department of Neuropathology, Kyushu University, Fukuoka, Japan

    Satoshi O. Suzuki

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  1. Nobuya Murakami
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  2. Takato Morioka
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Correspondence to Nobuya Murakami.

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Murakami, N., Morioka, T., Hashiguchi, K. et al. Usefulness of three-dimensional T1-weighted spoiled gradient-recalled echo and three-dimensional heavily T2-weighted images in preoperative evaluation of spinal dysraphism. Childs Nerv Syst 29, 1905–1914 (2013). https://doi.org/10.1007/s00381-013-2140-6

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  • DOI: https://doi.org/10.1007/s00381-013-2140-6

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