|Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
The goal of this research is to develop the ultra high-speed imaging sequence which noise does not occur during scanning of MRI, obtained higher quality.The present study demonstrates the change rate of the gradient magnetic field at modified EPI sequence, the relationship between image quality and noise generated during scanning. Ultrafast imaging method developed has become possible to decrease drastically with one tenth of conventional regarding quiescence. Signal-to-noise ratio of the image obtained was degraded up to one-quarter as compared with the conventional method. Optimization of the RF pulse is required in the future.