Abstract #3473

Inter-scanner consistency of T1 map and proton spin density map derived from strategically acquired gradient echo (STAGE) imaging

Yasutaka Fushimi¹, Satoshi Nakajima¹, Sachi Okuchi¹, Akihiko Sakata¹, Takuya Hinoda¹, Sayo Otani¹, Azusa Sakurama¹, Krishna Pandu Wicaksono¹, Hiroshi Tagawa¹, Yang Wang¹, Satoshi Ikeda¹, Shuichi Ito¹, Miyuki Takiya¹, and Yuji Nakamoto¹

¹Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan

Synopsis

Keywords: Quantitative Imaging, BrainRecently, strategically acquired gradient echo (STAGE) imaging has been developed as a potential standardized brain imaging protocol. STAGE is designed to use two 3D fully ﬂow compensated multi-echo SWI sequences with 2 different flip angles (FAs). We evaluated the inter-scanner consistency of T1 values and proton spin density (PSD) values derived from STAGE imaging for elderly healthy volunteers. We conducted VOI analysis both in Native space and “Mutual space” using AAL3 VOIs. Parcellation was automatically performed with few manipulations, and good ICC and minimal biases were demonstrated between the two scanners.

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