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3D B1+corrected simultaneous myocardial T1 and T1Ï mapping with subject-specific respiratory motion correction and water-fat separation
2025-02
发表期刊MAGNETIC RESONANCE IN MEDICINE (IF:3.0[JCR-2023],3.3[5-Year])
ISSN0740-3194
EISSN1522-2594
卷号93期号:2页码:751-760
发表状态已发表
DOI10.1002/mrm.30317
摘要

PurposeTo develop a 3D free-breathing cardiac multi-parametric mapping framework that is robust to confounders of respiratory motion, fat, and B1+ inhomogeneities and validate it for joint myocardial T1 and T1 rho mapping at 3T. MethodsAn electrocardiogram-triggered sequence with dual-echo Dixon readout was developed, where nine cardiac cycles were repeatedly acquired with inversion recovery and T1 rho preparation pulses for T1 and T1 rho sensitization. A subject-specific respiratory motion model relating the 1D diaphragmatic navigator to the respiration-induced 3D translational motion of the heart was constructed followed by respiratory motion binning and intra-bin 3D translational and inter-bin non-rigid motion correction. Spin history B1+ inhomogeneities were corrected with optimized dual flip angle strategy. After water-fat separation, the water images were matched to the simulated dictionary for T1 and T1 rho quantification. Phantoms and 10 heathy subjects were imaged to validate the proposed technique. ResultsThe proposed technique achieved strong correlation (T1: R-2 = 0.99; T1 rho: R-2 = 0.98) with the reference measurements in phantoms. 3D cardiac T1 and T1 rho maps with spatial resolution of 2 x 2 x 4 mm were obtained with scan time of 5.4 +/- 0.5 min, demonstrating comparable T1 (1236 +/- 59 ms) and T1 rho (50.2 +/- 2.4 ms) measurements to 2D separate breath-hold mapping techniques. The estimated B1+ maps showed spatial variations across the left ventricle with the septal and inferior regions being 10%-25% lower than the anterior and septal regions. ConclusionThe proposed technique achieved efficient 3D joint myocardial T1 and T1 rho mapping at 3T with respiratory motion correction, spin history B1+ correction and water-fat separation.

关键词B1+correction cardiac multi-parametric mapping free-breathing T1 mapping T1 rho mapping
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收录类别SCI ; EI
语种英语
资助项目National Natural Science Foundation of China[82102027] ; Shanghai Science and Technology Commission[23TS1400300] ; Cross-disciplinary Research Fund of Shanghai Ninth People's Hospital, Shanghai JiaoTong university School of Medicine[JYJC202134]
WOS研究方向Radiology, Nuclear Medicine & Medical Imaging
WOS类目Radiology, Nuclear Medicine & Medical Imaging
WOS记录号WOS:001329656200001
出版者WILEY
EI入藏号20244117171064
EI主题词Phantoms
EI分类号101.1 ; 101.2.1 ; 101.3 ; 101.4 ; 103 ; 1106.3.1 ; 203 ; 405.3 Surveying ; 701.2 Magnetism: Basic Concepts and Phenomena
原始文献类型Article in Press
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/436495
专题生物医学工程学院
信息科学与技术学院_博士生
生物医学工程学院_PI研究组_齐海坤组
生物医学工程学院_PI研究组_胡鹏组
通讯作者Qi, Haikun
作者单位
1.ShanghaiTech Univ, Sch Biomed Engn, Shanghai, Peoples R China
2.ShanghaiTech Univ, State Key Lab Adv Med Mat & Devices, Shanghai, Peoples R China
3.Shanghai Jiao Tong Univ, Shanghai Peoples Hosp 9, Sch Med, Shanghai, Peoples R China
4.United Imaging Healthcare, Shanghai, Peoples R China
5.UIH Amer Inc, Houston, TX USA
6.Kings Coll London, Sch Biomed Engn & Imaging Sci, London, England
7.Pontificia Univ Catolica Chile, Sch Engn, Santiago, Chile
8.Millenium Inst Intelligent Healthcare Engn, Santiago, Chile
第一作者单位生物医学工程学院;  上海科技大学
通讯作者单位生物医学工程学院;  上海科技大学
第一作者的第一单位生物医学工程学院
推荐引用方式
GB/T 7714
Qi, Haikun,Lv, Zhenfeng,Diao, Jiameng,et al. 3D B1+corrected simultaneous myocardial T1 and T1Ï mapping with subject-specific respiratory motion correction and water-fat separation[J]. MAGNETIC RESONANCE IN MEDICINE,2025,93(2):751-760.
APA Qi, Haikun.,Lv, Zhenfeng.,Diao, Jiameng.,Tao, Xiaofeng.,Hu, Junpu.,...&Hu, Peng.(2025).3D B1+corrected simultaneous myocardial T1 and T1Ï mapping with subject-specific respiratory motion correction and water-fat separation.MAGNETIC RESONANCE IN MEDICINE,93(2),751-760.
MLA Qi, Haikun,et al."3D B1+corrected simultaneous myocardial T1 and T1Ï mapping with subject-specific respiratory motion correction and water-fat separation".MAGNETIC RESONANCE IN MEDICINE 93.2(2025):751-760.
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