DWI using navigated interleaved multishot EPI with realigned GRAPPA reconstruction

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Wentao LiuJia-Hong Gao

Abstract

A novel k-space reconstruction method is proposed for generating diffusion-weighted imaging (DWI) using navigated interleaved multishot EPI (msEPI). In interleaved msEPI, each shot of data acquired from one coil channel is a subset of the full k-space of that channel. All the k-space subsets of one channel can be treated as an undersampled dataset of a virtual multichannel data, which can be reconstructed by the GRAPPA algorithm after k-space realignment. The intershot phase variations are directly compensated using navigator echoes as the auto-calibrating data in GRAPPA reconstruction. In cases of multichannel msEPI data, all the virtual channels and actual channels can be integrated into a single GRAPPA reconstruction step. The proposed method is tested using both simulation and in-vivo data. The simulation results produced by the proposed method and a SENSE-based method are compared. The simulated images generated by the proposed method exhibit less relative error compared with those generated by the SENSE method. Inconsistent shot-to-shot phase variation is naturally resolved by GRAPPA calibration without additional phase map processing. High-quality brain DWI with submillimeter resolution is obtained using our proposed rec...Continue Reading

References

Nov 1, 1990·Radiology·R TurnerJ Pekar
Nov 1, 1990·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·P B RoemerO M Mueller
Apr 1, 1990·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·F FarzanehN J Pelc
May 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A J de CrespignyM E Moseley
Sep 1, 1994·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A W Anderson, J C Gore
Jan 1, 1994·Magnetic Resonance Imaging·R J OrdidgeV Nagesh
Feb 1, 1994·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·P van GelderenC T Moonen
May 1, 1996·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·K ButtsM Moseley
Nov 14, 1997·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·K ButtsM Moseley
Jul 12, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Mark A GriswoldAxel Haase
Nov 25, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Chunlei LiuMichael E Moseley
Nov 9, 2005·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Chunlei LiuRoland Bammer
Mar 30, 2011·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Nan-Kuei ChenAllen W Song
May 18, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ha-Kyu JeongAdam W Anderson
May 26, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Wentao LiuJia-Hong Gao

❮ Previous
Next ❯

Citations

Apr 20, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Erpeng DaiHua Guo
Aug 5, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zijing DongHua Guo
Jun 14, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zijing DongHua Guo
Mar 24, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Erpeng DaiHua Guo
Jan 13, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Berkin BilgicKawin Setsompop
Feb 8, 2019·NMR in Biomedicine·Samantha J HoldsworthKawin Setsompop
May 21, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Berkin BilgicKawin Setsompop
Jun 1, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Michael Herbst

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cajal Bodies & Gems

Cajal bodies or coiled bodies are dense foci of coilin protein. Gemini of Cajal bodies, or gems, are microscopically similar to Cajal bodies. It is believed that Cajal bodies play important roles in RNA processing while gems assist the Cajal bodies. Find the latest research on Cajal bodies and gems here.

Related Papers

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Zechen ZhouChun Yuan
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Trong-Kha Truong, Arnaud Guidon
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Martin BlaimerFelix Breuer
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Martin UeckerMichael Lustig
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Chunlei LiuRoland Bammer
© 2022 Meta ULC. All rights reserved