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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한자기공명의과학회 Investigative Magnetic Resonance Imaging Investigative Magnetic Resonance Imaging 제25권 제4호
- 발행연도
- 2021.12
- 수록면
- 300 - 312 (13page)
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초록· 키워드
오류제보하기
Compressed sensing (CS) has been investigated in magnetic resonance (MR) parametric mapping to reduce scan time. However, the relatively long reconstruction time restricts its widespread applications in the clinic. Recently, deep learning based methods have shown great potential in accelerating reconstruction time and improving imaging quality in fast MR imaging, although their adaptation to parametric mapping is still in an early stage. In this paper, we proposed a novel deep learning based framework DEMO for fast and robust MR parametric mapping. Different from current deep learning-based methods, DEMO trains the network in an unsupervised way, which is more practical given that it is difficult to acquire large fully sampled training data of parametric-weighted images. Specifically, a CS-based loss function is used in DEMO to avoid the necessity of using fully sampled k-space data as the label, thus making it an unsupervised learning approach. DEMO reconstructs parametric weighted images and generates a parametric map simultaneously by unrolling an interaction approach in conventional fast MR parametric mapping, which enables multi-tasking learning. Experimental results showed promising performance of the proposed DEMO framework in quantitative MR T1ρ mapping.
목차
등록된 정보가 없습니다.
참고문헌 (47)
참고문헌 신청
MacKay A / 1994 / In vivo visualization of myelin water in brain by magnetic resonance / Magn Reson Med 31:673~677
Sibley CT / 2012 / T1 Mapping in cardiomyopathy at cardiac MR : comparison with endomyocardial biopsy / Radiology 265:724~732
Duvvuri U / 2001 / Human knee: in vivo T1(rho)-weighted MR imaging at 1.5 T--preliminary experience / Radiology 220:822~826
Regatte RR / 2006 / T1rho relaxation mapping in human osteoarthritis(OA)cartilage : comparison of T1rho with T2 / J Magn Reson Imaging 23:547~553
Petzschner FH / 2011 / Fast MR parameter mapping using k-t principal component analysis / Magn Reson Med 66:706~716
Sibley CT / 2012 / T1 Mapping in cardiomyopathy at cardiac MR : comparison with endomyocardial biopsy / Radiology 265:724~732
Duvvuri U / 2001 / Human knee: in vivo T1(rho)-weighted MR imaging at 1.5 T--preliminary experience / Radiology 220:822~826
Regatte RR / 2006 / T1rho relaxation mapping in human osteoarthritis(OA)cartilage : comparison of T1rho with T2 / J Magn Reson Imaging 23:547~553
Petzschner FH / 2011 / Fast MR parameter mapping using k-t principal component analysis / Magn Reson Med 66:706~716
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