𝔖 Bobbio Scriptorium
✦   LIBER   ✦

TE interleaving: New multisection imaging technique

✍ Scribed by Jonathan E. Bishop; Donald B. Plewes

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
647 KB
Volume
1
Category
Article
ISSN
1053-1807

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A new pulse sequence that increases the number of sections that can be acquired with a T2‐weighted multisection imaging prescription is presented. The sequence achieves a higher efficiency in section acquisition per unit time by interleaving excitation and data collection for up to three separate sections during the long TE (⩾ 80 msec) of a T2‐weighted spin‐echo pulse sequence. The necessary modifications of the section‐select and readout gradient waveforms for the implementation of TE‐interleaved (TEI) sequences, with and without flow compensation, are described. Secondary‐ and stimulated‐echo artifacts are present on some TEI images, but these can be controlled with appropriate spoiler gradients. The signal‐to‐noise ratio for contiguous sections is slightly reduced compared with that of a standard multisection pulse sequence. These observations indicate that the effects of radio‐frequency section interference are enhanced by the TEI sequence.

📜 SIMILAR VOLUMES

Novel interleaved spiral imaging motion
Novel interleaved spiral imaging motion correction technique using orbital navigators
✍ Hisamoto Moriguchi; Jonathan S. Lewin; Jeffrey L. Duerk 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 397 KB

## Abstract Although spiral imaging seldom produces apparent artifacts related to flow, it remains sensitive to rapid object motion. In this article, a new correction method is presented for rapid rigid body motion in interleaved spiral imaging. With this technique, an identical circular navigator

Interleaved pulsed MAMBA: A new parallel
Interleaved pulsed MAMBA: A new parallel slice imaging method
✍ Martyn N.J. Paley; Kuan J. Lee; James M. Wild; Elspeth H. Whitby; Paul D. Griffi 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 764 KB

A method of acquiring slices in parallel is described which uses interleaved sets of pulsed B(0) field coils to generate discrete regions of uniform field within the main magnetic field known as interleaved MAMBA (multiple acquisition micro B(0) array). Simulations of a number of coil designs were p

A new diffusion SSFP imaging technique
A new diffusion SSFP imaging technique
✍ Yuval Zur; Elyakim Bosak; Noam Kaplan 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 615 KB

## Abstract In this paper a new diffusion sensitive steady‐state free precession (SSFP) pulse sequence with a reduced sensitivity to physiological brain motion is presented. The signal attenuation due to diffusion in this SSFP sequence is derived theoretically and confirmed experimentally with a ph

Improved image quality with new ultrasou
Improved image quality with new ultrasound imaging techniques
✍ C. Fritsch; J. Camacho; M. Parrilla 📂 Article 📅 2010 🏛 Elsevier 🌐 English ⚖ 633 KB

This work addresses three key subjects to the image quality with phased arrays: timing accuracy, beamforming strategy and postprocessing for increased resolution and suppression of grating and side lobes. Timing accuracy is achieved by defining a modular and scalable architecture which guarantees ti