Advanced Methods in Dynamic Contrast Enhanced Arterial Phase Imaging of the Liver
10.13104/imri.2019.23.1.1
- Author:
Yoon Chul KIM
1
Author Information
1. Clinical Research Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. yoonckim@skku.edu
- Publication Type:Review
- Keywords:
Dynamic contrast enhanced MRI;
Liver;
Image reconstruction;
Pulse sequence;
Compressed sensing;
GRASP
- MeSH:
Artifacts;
Hand Strength;
Image Processing, Computer-Assisted;
Liver;
Magnetic Resonance Imaging;
Methods
- From:Investigative Magnetic Resonance Imaging
2019;23(1):1-16
- CountryRepublic of Korea
- Language:English
-
Abstract:
Dynamic contrast enhanced (DCE) magnetic resonance (MR) imaging plays an important role in non-invasive detection and characterization of primary and metastatic lesions in the liver. Recently, efforts have been made to improve spatial and temporal resolution of DCE liver MRI for arterial phase imaging. Review of recent publications related to arterial phase imaging of the liver indicates that there exist primarily two approaches: breath-hold and free-breathing. For breath-hold imaging, acquiring multiple arterial phase images in a breath-hold is the preferred approach over conventional single-phase imaging. For free-breathing imaging, a combination of three-dimensional (3D) stack-of-stars golden-angle sampling and compressed sensing parallel imaging reconstruction is one of emerging techniques. Self-gating can be used to decrease respiratory motion artifact. This article introduces recent MRI technologies relevant to hepatic arterial phase imaging, including differential subsampling with Cartesian ordering (DISCO), golden-angle radial sparse parallel (GRASP), and X-D GRASP. This article also describes techniques related to dynamic 3D image reconstruction of the liver from golden-angle stack-of-stars data.
