T2-FLAIR Mismatch Sign Is Caused by Long T1 and T2 of IDH-mutant, 1p19q Non-codeleted Astrocytoma

Manabu Kinoshita; Masato Uchikoshi; Mio Sakai; Yonehiro Kanemura; Haruhiko Kishima; Katsuyuki Nakanishi

doi:10.2463/mrms.bc.2019-0196

Brief Communication

T₂-FLAIR Mismatch Sign Is Caused by Long T₁ and T₂ of IDH-mutant, 1p19q Non-codeleted Astrocytoma

Manabu Kinoshita, Masato Uchikoshi, Mio Sakai, Yonehiro Kanemura, Haruhiko Kishima, Katsuyuki Nakanishi

著者情報

キーワード: T₂-fluid-attenuated inversion recovery images mismatch, relaxometry, IDH mutation, 1p19 codeletion

ジャーナルオープンアクセス

2021 年 20 巻 1 号 p. 119-123

DOI https://doi.org/10.2463/mrms.bc.2019-0196

Browse “Advance online publication” version

詳細

抄録

T₂-fluid-attenuated inversion recovery images (FLAIR) mismatch sign is now known to be a specific yet insensitive image feature for IDH-mutant, 1p19q non-codeleted astrocytoma. The current study revealed that lesion presenting T₂-FLAIR mismatch exhibited extremely long T₁- and T₂-relaxation time while T₂-FLAIR matched lesions showed low to moderate values. On the other hand, IDH-wildtype tumors presented noticeably short T₁- and T₂-relaxation time. These different relaxation time characteristics seemed to render T₂-FLAIR mismatch sign of becoming such a unique and specific image feature for IDH-mutant, 1p19q non-codeleted astrocytoma.

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）