VSRADプログラム解析に対するParallel Imagingを用いた頭部3D-MR画像の臨床応用 : 短時間撮像法と従来撮像法との画像統計解析結果の比較

概要

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Voxel-based Specific Regional Analysis System for Alzheimer's Disease (VSRAD) has developed recently as an adjunctive diagnostic tool for early Alzheimer-type dementia (ATD), using three-dimensional (3D) MRI with statistical parametric mapping (SPM), and for the objective evaluation of brain atrophy. However, it takes more than five minutes to acquire MRI data by the 3D gradient echo method (3D FFE), resulting in low-throughput performance and motion artifact. These problems interrupt the application of daily MRI study. In this study, we recruited 20 patients suspected of having ATD who then underwent continuous 3D FFE MRI studies with and without the SENSE method. It was found that the VSRAD results of MRI data with SENSE were nearly to equal to those without SENSE, in spite of the prediction of a decline in source-to-noise ratio due to the reduction factor in the SENSE method.
社団法人日本放射線技術学会の論文
2006-10-20