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ADC change during cardiac cycle in idiopathic normal pressure hydrocephalus before and after tap test and shunt surgery

Ryo Yagawa¹, Naoki Ohno¹, Tosiaki Miyati¹, Mitsuhito Mase², Tomoshi Osawa², Harumasa Kasai², Yuta Shibamoto², and Satoshi Kobayashi¹
¹Division of Health Sciences, Kanazawa University, Kanazawa, Japan, ²Nagoya City University Hospital, Nagoya, Japan

The frontal white matter ΔADC in iNPH decreased after the lumbar tap and shunt surgery. ΔADC analysis may provide detailed information regarding changes in the hydrodynamic and biomechanical properties through CSF drainage.

Figure 1. (a) ΔADC and (b) ADCmean in the positive group before and after the lumbar tap, and each of representative images.

Figure 3. (a) ΔADC and (b) ADCmean in the positive group before and after the shunt surgery, and each of representative images.