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Combination of time domain-system matrix and x-space methods to reconstruct magnetic particle images with isotropic resolution

文献类型：期刊论文

作者Shan, Shihao1; Zhang, Chenglong1; Yin, Lin2; Yang, Xiaoli1; Yu, Dexin3; Qi, Yafei3; Li, Min4; Wildgruber, Moritz5; Du, Yang2; Tian, Jie2,6
刊名PHYSICS IN MEDICINE AND BIOLOGY
出版日期2024-02-07
卷号69期号:3页码:13
关键词magnetic particle imaging x-space isotropic resolution time domain system matrix medical image reconstruction
ISSN号0031-9155
DOI10.1088/1361-6560/ad19f0
通讯作者Du, Yang(yang.du@ia.ac.cn) ; Tian, Jie(tian@ieee.org) ; Ma, Xiaopeng(xiaopeng.ma@sdu.edu.cn)
英文摘要Objective. Imaging of superparamagnetic iron oxide nanoparticles based on their non-linear response to alternating magnetic fields shows promise for imaging cells and vasculature in healthy and diseased tissue. Such imaging can be achieved through x-space reconstruction typically along a unidirectional Cartesian trajectory, which rapidly convolutes the particle distribution with a 'anisotropic blurring' point spread function (PSF), leading to images with anisotropic resolution. Approach. Here we propose combining the time domine-system matrix and x-space reconstruction methods into a forward model, where the output of the forward model is the PSF-blurred x-space reconstructed image. We then treat the blur as an inverse problem solved by Kaczmarz iteration. Main results. After we have proposed the method optimization, the normal resolution of simulation and device images has been increased from 3.5 mm and 5.25 mm to 1.5 mm and 3.25 mm, which has reached the level in the tangential resolution. Quantitative indicators of image quality such as PSNR and SSIM have also been greatly improved. Significance. Simulation and imaging of real phantoms indicate that our approach provides better isotropic resolution and image quality than the x-space method alone or other methods for removing PSF blur. Using our proposed method to optimize the image quality of x-space reconstructed images using unidirectional Cartesian trajectories, it will promote the clinical application of MPI in the future.
WOS关键词MODEL
资助项目National Natural Science Foundation of China https://doi.org/10.13039/501100001809[2022CXGC010501] ; Key R&D Program of Shandong Province, China[82227802] ; National Natural Science Foundation of China
WOS研究方向Engineering ; Radiology, Nuclear Medicine & Medical Imaging
语种英语
WOS记录号WOS:001144946700001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China https://doi.org/10.13039/501100001809 ; Key R&D Program of Shandong Province, China ; National Natural Science Foundation of China
源URL[http://ir.ia.ac.cn/handle/173211/54783]  
专题自动化研究所_中国科学院分子影像重点实验室
通讯作者Du, Yang; Tian, Jie; Ma, Xiaopeng
作者单位1.Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Shandong, Peoples R China
2.Inst Automat, CAS Key Lab Mol Imaging, Beijing 100190, Peoples R China
3.Shandong Univ, Qilu Hosp, Cheeloo Coll Med, Dept Radiol, Jinan 250012, Shandong, Peoples R China
4.960 Hosp PLA, Dept Nucl Med, 25 Shifan Rd, Jinan 250031, Shandong, Peoples R China
5.Ludwig Maximilians Univ Munchen, Univ Hosp, Dept Radiol, D-81337 Munich, Germany
6.Beihang Univ, Beijing Adv Innovat Ctr Big Data Based Precis Med, Sch Engn Med, Beijing 100191, Peoples R China
推荐引用方式
GB/T 7714		 Shan, Shihao,Zhang, Chenglong,Yin, Lin,et al. Combination of time domain-system matrix and x-space methods to reconstruct magnetic particle images with isotropic resolution[J]. PHYSICS IN MEDICINE AND BIOLOGY,2024,69(3):13.
APA Shan, Shihao.,Zhang, Chenglong.,Yin, Lin.,Yang, Xiaoli.,Yu, Dexin.,...&Ma, Xiaopeng.(2024).Combination of time domain-system matrix and x-space methods to reconstruct magnetic particle images with isotropic resolution.PHYSICS IN MEDICINE AND BIOLOGY,69(3),13.
MLA Shan, Shihao,et al."Combination of time domain-system matrix and x-space methods to reconstruct magnetic particle images with isotropic resolution".PHYSICS IN MEDICINE AND BIOLOGY 69.3(2024):13.

入库方式： OAI收割

来源：自动化研究所

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