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Abstract #4870

Subjective Assessment of Sensations Experienced by 7 Tesla Magnetic Resonance Imaging

Ikuko Uwano 1 , Tsuyoshi Metoki 1 , Fusako Sendai 1 , Ryoko Yoshida 1 , Kohsuke Kudo 1,2 , Fumio Yamashita 1 , Satomi Higuchi 1 , Kenji Ito 1 , Jonathan Goodwin 1,2 , Taisuke Harada 1,2 , and Makoto Sasaki 1

1 Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Yahaba, Iwate, Japan, 2 Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Hokkaido, Japan

We investigated the unpleasant sensations experienced by large number of the Japanese subjects during MRI examination using a 7T scanner that has a slow table-feed speed, and then compared these sensations to the previous reports. Unpleasant sensations such as vertigo were experienced at 7T especially when the table is moving, but were infrequent and weak when compared with the previous studies presumably do to the slow table-feed speed, indicating that the degree of subjective discomforts at 7T is tolerable and may be acceptable in the usage of the clinical practice in the future.

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