𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Two-point Dixon technique for water-fat signal decomposition with B0 inhomogeneity correction

✍ Scribed by Bernard D. Coombs; Jerzy Szumowski; William Coshow

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
801 KB
Volume
38
Category
Article
ISSN
0740-3194

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

To separate water and lipid resonance signals by phase‐sensitive MRI, a two‐point Dixon (2PD) reconstruction is presented in which phase‐unwrapping is used to obtain an inhomogeneity map based on only in‐phase and out‐of‐phase image data. Two relaxation‐weighted images, a “water image” and a “fat image,” representing a two‐resonance peak model of proton density, are output. The method is designed for T~1~‐ or density‐weighted spin‐echo imaging; a double‐echo scheme is more appropriate for T~2~‐weighted spin‐echo imaging. The technique is more time‐efficient for clinical fat‐water imaging than 3PD schemes, while still correcting for field inhomogeneity.

📜 SIMILAR VOLUMES

Three-point dixon technique for true wat
Three-point dixon technique for true water/fat decomposition with B0 inhomogeneity correction
✍ G. H. Glover; E. Schneider 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 710 KB

## Abstract An enhancement to Dixon's technique is described which can provide error‐free decomposition of water and fat proton images even in the presence of off‐resonance conditions which result from susceptibility differences, demagnetization, or shim errors. The method uses three measurements w

An extended two-point dixon algorithm fo
An extended two-point dixon algorithm for calculating separate water, fat, and B0 images
✍ Thomas E. Skinner; Gary H. Glover 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 792 KB

## Abstract A new algorithm is presented that provides separate water, fat, and __B__~0~ images utilizing the in‐phase and opposed‐phase acquisitions of the two‐point Dixon (2PD) method. The accuracy of the extended method (E2PD) compares favorably with the three‐point Dixon (3PD) method, and the a

Breath-hold water and fat imaging using
Breath-hold water and fat imaging using a dual-echo two-point dixon technique with an efficient and robust phase-correction algorithm
✍ Jingfei Ma 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 199 KB

## Abstract A two‐point Dixon technique using a novel phase‐correction algorithm and commercially available dual‐echo fast gradient‐echo pulse sequence is presented. The phase‐correction algorithm determines the directional rather than phase distribution of signals due to field inhomogeneities. Spe