Comparison of centric and reverse-centric trajectories for highly accelerated three-dimensional saturation recovery cardiac perfusion imaging
نویسندگان
چکیده
منابع مشابه
Highly accelerated k-t SENSE cardiac perfusion imaging
Figure 2. Upper figure: Comparison of perfusion curves from a 10x k-t SENSE reconstruction using the conventional (9 profiles) and the SENSE reconstructed training data (9x2 and 9x3 profiles undersampled by a factor of 2 and 3 respectively) along with the corresponding absolute error. Lower figure: The same comparison, this time using anisotropic diffusion filtering of the SENSE reconstructed t...
متن کاملCombination of compressed sensing and parallel imaging for highly accelerated first-pass cardiac perfusion MRI.
First-pass cardiac perfusion MRI is a natural candidate for compressed sensing acceleration since its representation in the combined temporal Fourier and spatial domain is sparse and the required incoherence can be effectively accomplished by k-t random undersampling. However, the required number of samples in practice (three to five times the number of sparse coefficients) limits the accelerat...
متن کاملAccelerated myocardial perfusion imaging using saturation-recovery spiral-in/out SSFP
Background Myocardial first-pass perfusion imaging is a promising diagnostic tool for the assessment of ischemic heart disease. Spiral imaging, due to its high acquisition speed and robustness against motion artifacts, has been successfully combined with the saturation recovery (SR) GRE sequence using a traditional spiral-out trajectory. However, a SR SSFP sequence can provide higher SNR and us...
متن کاملMyocardial perfusion imaging using CAIPIRINHA accelerated multi-slice saturation recovery TrueFISP
Introduction: Saturation recovery (SR) prepared TrueFISP sequences are widely in use for myocardial perfusion imaging because of a high intrinsic signal-to-noise ratio (SNR). Since the image acquisition is limited by the heart cycle, a complete coverage of the heart with consecutively acquired slices is difficult. Parallel imaging techniques are required significantly reducing the acquisition t...
متن کاملThrust - Limited Optimal Three - Dimensional Spacecraft Trajectories
Several optimal three-dimensional orbital transfer problems are solved for thrust-limited spacecrafts using collocation and nonlinear programming techniques. The solutions for full nonlinear equations of motion are obtained where the integrals of the free Keplerian motion in three dimensions are utilized for coasting arcs. In order to limit the solution space, interior-point constraints are use...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2014
ISSN: 0740-3194
DOI: 10.1002/mrm.25478