Patent ID: 11961164
Assignee: SIEMENS MEDICAL SOLUTIONS USA, INC.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 1:
2. The method of claim 1, wherein the CBM data normalization factor ζ is computed from scanner normalization factors Z accounting for the axial patient bed motion during the CBM acquisition according to the equation:, n
    
     ρ
     ⁢
     θ
     ⁢
     ζ
    
    
     -
     1
    
   
   =
   
    
     ∫
     
       
      0
     
     
       
      
       t
       
        a
        ⁢
        c
        ⁢
        q
       
      
     
    
    
     dt
     ⁢
     
      
       ∑
       z
      
      
       
        e
        
         
          -
          λ
         
         ⁢
         t
        
       
       ⁢
       
        
         d
         
          ρ
          ⁢
          θ
          ⁢
          z
         
        
        (
        t
        )
       
       ⁢
       
        n
        
         ρ
         ⁢
         θ
         ⁢
         z
        
        
         -
         1
        
       
       ⁢
       
        δ
        
         z
         ,
         
          Z
          ⁡
          (
          
           ζ
           ,
           t
          
          )
         
        
       
      
     
    
   
  
  ;
 

wherein λ is decay correction constant for a specific isotope, δ is Kronecker's delta, d is dead time correction factor, and tacq is CBM acquisition time.