Compressed sensing MR fast imaging: The clarification of image quality problems for practical use and development of evaluation methods
| Project/Area Number |
24591747
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Radiation science
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| Research Institution | Tohoku University |
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Principal Investigator |
MACHIDA Yoshio 東北大学, 医学(系)研究科(研究院), 教授 (30507083)
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| Co-Investigator(Kenkyū-buntansha) |
MORI Issei 東北大学, 大学院医学系研究科, 非常勤講師 (90375171)
TAMURA Hajime 東北大学, 大学院医学系研究科, 非常勤講師 (20333817)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | compressed sensing / MRI / fast imaging / image quality evaluation / 圧縮センシング / 高速撮像 / 画質評価 |
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| Outline of Final Research Achievements |
As an acceleration technique for use with MRI, compressed sensing MRI (CS-MRI) was introduced recently to obtain MR images from undersampled data. Image formation procedure based on informatics theory have complicated characteristics. Therefore, the factors affecting image quality in CS-MRI must be elucidated from the point of view of clinical application. In this study, we specifically examined the image quality of MR angiography. For MR angiography, the depictability of thin blood vessels is extremely important, but quantitative evaluation of thin blood vessel depictability is difficult. We proposed a numerical evaluation method using a simple numerical phantom model mimicking the cerebral arteries.
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Report
(4 results)
Research Products
(18 results)
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[Journal Article] Noise Power Spectrum in PROPELLER MR Imaging2015
Author(s)
Ichinoseki Y, Miyamoto K, Nagasaka T, Tamura H, Mori I, Machida Y
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Journal Title
Magnetic Resonance in Medical Sciences
Volume: 14
Issue: 3
Pages: 235-242
DOI
NAID
ISSN
1347-3182, 1880-2206
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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