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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한자기공명의과학회 Investigative Magnetic Resonance Imaging Investigative Magnetic Resonance Imaging 제19권 제1호
- 발행연도
- 2015.1
- 수록면
- 19 - 30 (12page)
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초록· 키워드
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Purpose: A new compressed sensing technique by iterative truncation of smalltransformed coefficients (ITSC) is proposed for fast cardiac CINE MRI.
Materials and Methods: The proposed reconstruction is composed of two processes:truncation of the small transformed coefficients in the r-f domain, and restorationof the measured data in the k-t domain. The two processes are sequentially appliediteratively until the reconstructed images converge, with the assumption that thecardiac CINE images are inherently sparse in the r-f domain. A novel samplingstrategy to reduce the normalized mean square error of the reconstructed images isproposed.
Results: The technique shows the least normalized mean square error among thefour methods under comparison (zero filling, view sharing, k-t FOCUSS, and ITSC).
Application of ITSC for multi-slice cardiac CINE imaging was tested with the numberof slices of 2 to 8 in a single breath-hold, to demonstrate the clinical usefulness ofthe technique.
Conclusion: Reconstructed images with the compression factors of 3-4 appear veryclose to the images without compression. Furthermore the proposed algorithm iscomputationally efficient and is stable without using matrix inversion during thereconstruction.
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참고문헌 (29)
참고문헌 신청
[학술지(정기간행물)]
Acharya T / 2000 / JPEG2000 Standard for Image Compression: Concepts, Algorithms and VLSI Architectures / John Wiley & Sons
Ahn CB / 2012 / A New Compressed Sensing Technique by Iterative Truncation of Small Transformed Coefficients / Proc. ESMRMB : e-Poster 6 ~
Baraniuk RB / 2007 / Compressive Sensing / IEEE Sign Proc Mag 24 : 118 ~ 124
Bernstein MA / 2004 / Handbook of MRI Pulse Sequences / Elsevier
Acharya T / 2000 / JPEG2000 Standard for Image Compression: Concepts, Algorithms and VLSI Architectures / John Wiley & Sons
Ahn CB / 2012 / A New Compressed Sensing Technique by Iterative Truncation of Small Transformed Coefficients / Proc. ESMRMB : e-Poster 6 ~
Baraniuk RB / 2007 / Compressive Sensing / IEEE Sign Proc Mag 24 : 118 ~ 124
Bernstein MA / 2004 / Handbook of MRI Pulse Sequences / Elsevier
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