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01.10.2004 | Neuro

Comparison of flow artifacts between 2D-FLAIR and 3D-FLAIR sequences at 3 T

verfasst von: Shinji Naganawa, Tokiko Koshikawa, Tatsuya Nakamura, Hisashi Kawai, Hiroshi Fukatsu, Takeo Ishigaki, Tomomi Komada, Katsuya Maruyama, Osamu Takizawa

Erschienen in: European Radiology | Ausgabe 10/2004

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Abstract

It has been reported that 3D-FLAIR can reduce the flow artifact resulting from cerebrospinal fluid (CSF) at 1.5 T compared to 2D-FLAIR. Flow-related artifacts tend to be worse at 3 T than at 1.5 T. The purpose of this study was to compare the CSF flow artifacts of 2D-FLAIR and 3D-FLAIR sequences at 3 T in eight healthy volunteers. The grade of CSF-related artifacts were scored through observing the perimedullary cistern, cerebellopontine angle cisterns, fourth ventricule, prepontine cistern, suprasellar cistern, ambient cisterns, sylvian fissures, third ventricle and lateral ventricles. Grading was performed on either axial or sagittal images. The CSF in-flow artifact scores were significantly higher on axial 2D-FLAIR than on axial 3D-FLAIR MPR images in all areas except the bilateral sylvian fissures, and higher on sagittal 2D-FLAIR than on sagittal 3D-FLAIR MPR images in perimedullary, bilateral CP angle and suprasellar cisterns. The CSF-related flow artifacts were significantly reduced by 3D-FLAIR, while structures in the cistern were depicted more clearly, even at 3 T. Further study is necessary to compare the clinical efficacy between 2D-FLAIR and 3D-FLAIR in depicting subtle abnormalities.

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Titel: Comparison of flow artifacts between 2D-FLAIR and 3D-FLAIR sequences at 3 T
verfasst von: Shinji Naganawa
Tokiko Koshikawa
Tatsuya Nakamura
Hisashi Kawai
Hiroshi Fukatsu
Takeo Ishigaki
Tomomi Komada
Katsuya Maruyama
Osamu Takizawa
Publikationsdatum: 01.10.2004
Verlag: Springer-Verlag
Erschienen in: European Radiology / Ausgabe 10/2004
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-004-2372-7

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