fast MRI using virtual data

• Project/Area Number: 25670538
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Radiation science
• Research Institution: Komazawa University
• Principal Investigator: Moriguchi Hisamoto 駒澤大学, 医療健康科学部, 教授 (70296705)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
• Keywords: MRI / 高速撮像 / 画像再構成 / ＭＲＩ / 放射線医学

Outline of Final Research Achievements

In this study, limited k-space data were acquired in MRI while rest of the data were estimated from the acquired data to reduce the scan time. The estimated data were referred to as ‘virtual data’. In algorithms that required several MR images with different parameters, images were reconstructed from actually acquired data and virtual data. Quality of the images was significantly improved from that reconstructed only from acquired data.