title: AFFINE-CORRECTEDPARADISE: FREE-BREATHING PATIENT-ADAPTIVE CARDIAC MRI WITH SENSITIVITY ENCODING.
abstract: We propose a real-time cardiac imaging method with parallel MRI that allows for free breathing during imaging and does not require cardiac or respiratory gating. The method is based on the recently proposed PARADISE (Patient-Adaptive Reconstruction and Acquisition Dynamic Imaging with Sensitivity Encoding) scheme. The new acquisition method adapts the PARADISE k-t space sampling pattern according to an affine model of the respiratory motion. The reconstruction scheme involves multi-channel time-sequential imaging with time-varying channels. All model parameters are adapted to the imaged patient as part of the experiment and drive both data acquisition and cine reconstruction. Simulated cardiac MRI experiments using the realistic NCAT phantom show high quality cine reconstructions and robustness to modeling inaccuracies.
authors.affiliation: Department of Electrical and Computer Engineering, Coordinated Science Laboratory University of Illinois, Urbana-Champaign, IL, USA.
authors.forename: Behzad
authors.initials: B
authors.lastname: Sharif
authors.affiliation: Department of Electrical and Computer Engineering, Coordinated Science Laboratory University of Illinois, Urbana-Champaign, IL, USA.
authors.forename: Yoram
authors.initials: Y
authors.lastname: Bresler
keywords: Adaptive Acquisition; Affine Motion Correction; Dynamic MRI; Respiratory Motion; Time-Sequential Sampling