Paper Info
Title
Compensating for patient respiration in PET/CT imaging with the registered and summed phases (RASP) procedure
Abstract
PET/CT imaging has introduced new challenges in accurate quantitation of lung nodules due to respiratory motion and mismatches in CT-based attenuation correction (CTAC). We used Monte Carlo simulations to investigate how respiratory-correlated CTAC can be optimized to account for mis-registration between the AC data and the PET data due to respiratory motion. This step also allows compensating for increased emission noise in respiratory-gated PET images by non-rigid image registration of the CTAC phases. These registration parameters are then applied to the attenuation-corrected PET phase images, which are then summed to reduce noise. A significant increase in the final PET SNR is demonstrated
Year
DOI
Venue
2006
10.1109/ISBI.2006.1625115
Arlington, VA
Keywords
Field
DocType
Monte Carlo methods,image registration,lung,medical image processing,motion compensation,pneumodynamics,positron emission tomography,CT imaging,CT-based attenuation correction,Monte Carlo simulations,PET,lung nodules,motion compensation,nonrigid image registration,patient respiration,respiratory motion,summed phases procedure
Nuclear medicine,Noise reduction,PET-CT,Monte Carlo method,Computer science,Motion compensation,Phase noise,Positron emission tomography,Correction for attenuation,Image registration
Conference
ISSN
ISBN
Citations 
1945-7928
0-7803-9576-X
1
PageRank 
References 
Authors
0.42
0
7
Name
Order
Citations
PageRank
Paul E. Kinahan110419.98
MacDonald, Lawrence210.76
Ng Lydia316716.64
Adam M. Alessio4337.95
Paul Segars5173.79
Benjamin M W Tsui66910.87
Sayan D. Pathak721515.91