Open Access Green as soon as Postprint is submitted to ZB.
		
    Physics-informed deep learning for motion-corrected reconstruction of quantitative brain MRI.
        
        In: (Medical Image Computing and Computer Assisted Intervention – MICCAI 2024). Berlin [u.a.]: Springer, 2024. 562-571 (Lect. Notes Comput. Sc. ; 15007)
    
    
    
	    We propose PHIMO, a physics-informed learning-based motion correction method tailored to quantitative MRI. PHIMO leverages information from the signal evolution to exclude motion-corrupted k-space lines from a data-consistent reconstruction. We demonstrate the potential of PHIMO for the application of T2* quantification from gradient echo MRI, which is particularly sensitive to motion due to its sensitivity to magnetic field inhomogeneities. A state-of-the-art technique for motion correction requires redundant acquisition of the k-space center, prolonging the acquisition. We show that PHIMO can detect and exclude intra-scan motion events and, thus, correct for severe motion artifacts. PHIMO approaches the performance of the state-of-the-art motion correction method, while substantially reducing the acquisition time by over 40%, facilitating clinical applicability. Our code is available at https://github.com/compai-lab/2024-miccai-eichhorn.
	
	
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        Publication type
        Article: Conference contribution
    
 
     
     
    
    
        Keywords
        Self-Supervised Learning; Motion Detection; Data-Consistent Reconstruction; T2*Quantification; Gradient Echo MRI
    
 
     
    
    
        Language
        english
    
 
    
        Publication Year
        2024
    
 
     
    
        HGF-reported in Year
        2024
    
 
    
    
        ISSN (print) / ISBN
        0302-9743
    
 
    
        e-ISSN
        1611-3349
    
 
    
     
    
        Conference Title
        Medical Image Computing and Computer Assisted Intervention – MICCAI 2024
    
 
	     
	 
	 
     
	
    
        Quellenangaben
        
	    Volume: 15007,  
	    
	    Pages: 562-571 
	    
	    
	
    
 
    
         
        
            Publisher
            Springer
        
 
        
            Publishing Place
            Berlin [u.a.]
        
 
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
     
    
        Institute(s)
        Institute for Machine Learning in Biomed Imaging (IML)
    
 
    
        POF-Topic(s)
        30205 - Bioengineering and Digital Health
    
 
    
        Research field(s)
        Enabling and Novel Technologies
    
 
    
        PSP Element(s)
        G-507100-001
    
 
    
        Grants
        Helmholtz Association under the joint research school "Munich School for Data Science - MUDS"
    
 
     	
    
    
        WOS ID
        001342232700054
    
    
        Scopus ID
        85212526361
    
    
        Erfassungsdatum
        2024-12-09