Radial k-t FOCUSS : radial k-t space focal underdetermined system solver for cardiovascular MRI = FOCUSS 알고리즘을 이용한 k-t공간상에서의 방사형 동적 자기공명영상 복원법radial k-t space focal underdetermined system solver for cardiovascular MRI

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The FOCal Underdetermined System Solver (FOCUSS) was originally designed to obtain sparse solutions from limited data. This paper adapts this algorithm for dynamic MR imaging reconstruction from angularly undersampled k-t data. FOCUSS is very effective for dynamic MR imaging such as cardiac imaging because the periodic motion is sparse on x-f space, and the initial low resolution image can be obtained from over-sampled center region in k-space. Experimental results for dynamic MRI from radial k-space data prove that FOCUSS is a very powerful algorithm that reduces angular aliasing artifacts without sacrificing the resolution.
Advisors
Ye, Jong-Chulresearcher예종철researcher
Description
한국과학기술원 : 바이오및뇌공학과,
Publisher
한국과학기술원
Issue Date
2008
Identifier
296163/325007  / 020063337
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 바이오및뇌공학과, 2008.2, [ vi, 36 p. ]

Keywords

sparsity; dynamic MRI; FOCUSS; 동적자기공명영상; FOCUSS; sparsity; dynamic MRI; FOCUSS; 동적자기공명영상; FOCUSS

URI
http://hdl.handle.net/10203/27150
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=296163&flag=dissertation
Appears in Collection
BiS-Theses_Master(석사논문)
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