✦ LIBER ✦

Elimination of magnetic field foldover artifacts in MR images

✍ Scribed by David J. Larkman; Amy H. Herlihy; Glyn A. Coutts; Joseph V. Hajnal

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 104 KB
Volume: 12
Category: Article
ISSN: 1053-1807
DOI: 10.1002/1522-2586(200011)12:5<795::aid-jmri20>3.0.co;2-h

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Elimination of oblique flow artifacts in

Elimination of oblique flow artifacts in magnetic resonance imaging

✍ Lawrence R. Frank; Adrian P. Crawley; Richard B. Buxton 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 641 KB

## Abstract We present an analysis of how flow oblique to the frequency‐encoding direction generates displacement artifacts in MR imaging and show that for flow which has constant velocity between the start of the phase encoding and the center of the echo it is possible to eliminate these artifacts

Correction of concomitant magnetic field

Correction of concomitant magnetic field-induced image artifacts in nonaxial echo-planar imaging

✍ Yiping P. Du; Xiaohong Joe Zhou; Matt A. Bernstein 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 183 KB

Echo-planar images acquired in nonaxial planes are often distorted. Such image distortion has limited the applications of the echo-planar imaging (EPI) technique. In this article, it is demonstrated that a considerable amount of the distortion is caused by the higher-order magnetic field concomitant

Concomitant magnetic-field-induced artif

Concomitant magnetic-field-induced artifacts in axial echo planar imaging

✍ Xiaohong Joe Zhou; Yiping P. Du; Matt A. Bernstein; H. Glenn Reynolds; Joseph K. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 947 KB

When a linear magnetic field gradient is used, spatially higher-order magnetic fields are produced to satisfy the Maxwell equations. It has been observed that the higher-order magnetic field produced by the readout gradient causes axial echo planar images acquired with a horizontal solenoid magnet t

Pseudo-gating: Elimination of periodic m

Pseudo-gating: Elimination of periodic motion artifacts in magnetic resonance imaging without gating

✍ E. Mark Haacke; Gerald W. Lenz; A. Dennis Nelson 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 721 KB

Artifacts induced by concomitant magneti

Artifacts induced by concomitant magnetic field in fast spin-echo imaging

✍ Xiaohong Joe Zhou; Steve G. Tan; Matt A. Bernstein 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 992 KB

## Abstract It has been observed that fast spin‐echo (FSE) images with a large field of view (>40 cm) in certain directions exhibit unusual ghosting artifacts that cannot be eliminated with existing ghost removal methods. These artifacts have been related to a higher‐order magnetic field perturbati

Gradient field switching as a source for

Gradient field switching as a source for artifacts in MR imaging of metallic stents

✍ Avshalom Shenhav; Haim Azhari 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 261 KB

## Abstract Metallic implants, such as stents, have long been a concern in magnetic resonance imaging (MRI). In addition to safety issues, they are commonly associated with image artifacts. The mechanisms of radiofrequency‐ (RF) and susceptibility‐induced artifacts have been thoroughly investigated