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Fourier analysis of dynamic diffusion changes during cardiac cycle in idiopathic normal pressure hydrocephalus
Yuya Yasuda1, Tosiaki Miyati1, Naoki Ohno1, Mitsuhito Mase2, Ryo Yagawa1, Rika Saito1, Masatomo Uehara1, Harumasa Kasai2, Yuta Shibamoto2, and Satoshi Kobayashi1
1Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan, 2Nagoya City University Hospital, Nagoya, Japan
The Fourier analysis of ADC change in the cardiac cycle in iNPH makes it possible to noninvasively obtain a more detailed information regarding the intracranial state in iNPH.
Figure 2. (a) Mean ADC amplitudes from the first to the seventh harmonic in the frontal white matter in the iNPH and control groups and (b) representative images of the mean ADC amplitude.
Figure 4. (a) ADC amplitudes in each frequency component in the frontal white matter in the iNPH and control groups and (b-d) representative images in each frequency component.