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Abstract #0559

Technique for Reconstruction Based on Intensity Order (TRIO) Applied as a Second Stage for Dynamic MRI Reconstruction.

Leonardo Ramrez1,2, Claudia Prieto3, Cristian Tejos1,2, Marcelo Guarini1,2, Pablo Irarrazaval1,2

1Departamento de Ingeniera Elctrica, Pontificia Universidad Catlica de Chile, Santiago, Chile; 2Biomedical Imaging Center, Pontificia Universidad Catlica de Chile, Santiago, Chile; 3Division of Imaging Sciences, King's College London, London, UK

Recently, a Technique for Reconstruction based on Intensity Order (TRIO) has been proposed which uses the intensity order of the pixels of an image to reconstruct undersampled data. This work introduces the use of TRIO as a second stage reconstruction to improve the results obtained from traditional undersampled reconstruction algorithms. The effects of incorrect estimation of the intensity order on the results are also discussed, showing that TRIO reconstruction is dependant on the quality of the intensity order information but always achieving improvements in the reconstruction.