## Abstract Diffusion‐weighted images acquired with the echo‐planar imaging technique are highly sensitive to eddy current induced geometric distortions that vary with the magnitude and direction of the diffusion sensitizing gradients. Such distortions cause misalignment of images acquired with dif
Geometric distortion correction in gradient-echo imaging by use of dynamic time warping
✍ Scribed by Stephan A.R. Kannengießer; Yi Wang; E. Mark Haacke
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 156 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract We present, here, a simple method for measurement and correction of off‐resonance related geometric distortion in echo‐planar imaging (EP1). This method uses high signal‐to‐noise ratio (SNR) EPI‐based field maps, rapidly acquired using a series of gradient recalled images collected acro
## Abstract To determine the magnitude of the pulsatile (P), translational (T), and composite (C) aortic wall motion and to predict its effect on endothelial edge definition in vascular NMR imaging, 10 healthy volunteers, mean age 42.5 ± 13 years, were studied. In each subject a series of transvers
## Abstract ## Purpose To correct eddy‐current artifacts in diffusion tensor (DT) images without the need to obtain auxiliary scans for the sole purpose of correction. ## Materials and Methods DT images are susceptible to distortions caused by eddy currents induced by large diffusion gradients.
## Abstract ## Purpose To develop a method that automatically corrects ghosting artifacts due to echo‐misalignment in interleaved gradient‐echo echo‐planar imaging (EPI) in arbitrary oblique or double‐oblique scan planes. ## Materials and Methods An automatic ghosting correction technique was de
## Abstract A real‐time magnetic resonance imaging (MRI) acquisition sequence was evaluated for the assessment of left ventricular wall motion (WM) and wall thickening (WT). Ten normal volunteers and 21 patients were studied. Short‐axis cine images of the left ventricle (LV) were acquired with a fa