Practical Application of Iterative Decomposition of Water and Fat with Echo Asymmetry and Least-Squares Estimation (IDEAL) Imaging in Minimizing Metallic Artifacts.
10.3348/kjr.2012.13.3.332
- Author:
Jang Gyu CHA
1
;
Hyun Sook HONG
;
Jai Soung PARK
;
Sang Hyun PAIK
;
Hae Kyung LEE
Author Information
1. Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon 420-767, Korea. mj4907@schmc.ac.kr
- Publication Type:Case Report
- Keywords:
MR;
Musculoskeletal;
MR artifact;
Postoperative imaging
- MeSH:
Adipose Tissue;
Adult;
Aged;
*Artifacts;
Body Water;
Cartilage, Articular/pathology;
Contrast Media/diagnostic use;
Humans;
Least-Squares Analysis;
Magnetic Resonance Imaging/*methods;
Male;
Metals;
Middle Aged;
Phantoms, Imaging;
*Prostheses and Implants;
Signal-To-Noise Ratio
- From:Korean Journal of Radiology
2012;13(3):332-341
- CountryRepublic of Korea
- Language:English
-
Abstract:
Iterative decomposition of water and fat with echo asymmetry and the least-squares estimation (IDEAL) is a recently developed method for robust separation of fat and water with very high signal-to-noise-ratio (SNR) efficiency. In contrast to conventional fat-saturation methods, IDEAL is insensitive to magnetic field (B0 and B1) inhomogeneity. The aim of this study was to illustrate the practical application of the IDEAL technique in reducing metallic artifacts in postoperative patients with metallic hardware. The IDEAL technique can help musculoskeletal radiologists make an accurate diagnosis particularly in musculoskeletal imaging by reducing metallic artifacts, enabling the use of contrast enhancement, improving SNR performance, and providing various modes of MR images with one scan parameter.
