Evaluation of Enhanced 3D Brain Image Using Ultrashort TE Sequence with Inversion Recovery for Preoperative Examination of Brain Tumor: Phantom Study Compared with MPRAGE

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  • Mano Shinobu
    Department of Diagnostic Imaging, Ube-Industries Central Hospital

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  • 脳腫瘍術前検査を目的としたinversion recovery法併用3D ultrashort echo time（UTE）シーケンスにおける至適撮像条件の検討—MPRAGEと比較したファントム実験—
  • 脳腫瘍術前検査を目的としたinversion recovery法併用3D ultrashort echo time (UTE)シーケンスにおける至適撮像条件の検討 : MPRAGEと比較したファントム実験
  • ノウ シュヨウ ジュツゼン ケンサ オ モクテキ ト シタ inversion recoveryホウ ヘイヨウ 3D ultrashort echo time (UTE)シーケンス ニ オケル シテキ サツゾウ ジョウケン ノ ケントウ : MPRAGE ト ヒカク シタ ファントム ジッケン

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Abstract

<p>It is important to obtain accurate anatomical information with little distortion in preoperative examination of brain tumors. Using PETRA, which is an ultrashort echo time (UTE) sequence that is less affected by magnetic susceptibility artifacts, we determined the optimal imaging conditions (radial views [RV] and inversion time [TI]) for IR-PETRA using the inversion recovery (IR) method and compared it with MPRAGE. IR-PETRA was found to be slightly inferior to MPRAGE in sharpness under the optimum conditions (RV=100,000 and TI=500 ms), but it was significantly improved by using a high RV value, and SNR and CNR were higher than or equal to MPRAGE. It is suggested that IR-PETRA may be an alternative sequence of MPRAGE in preoperative examination of brain tumors.</p>

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