Sciweavers

Share
MICCAI
2010
Springer

Synthetic MRI Signal Standardization: Application to Multi-atlas Analysis

10 years 8 months ago
Synthetic MRI Signal Standardization: Application to Multi-atlas Analysis
From the image analysis perspective, a disadvantage of MRI is the lack of image intensity standardization. Differences in coil sensitivity, pulse sequence and acquisition parameters lead to very different mappings from tissue properties to image intensity levels. This presents challenges for image analysis techniques because the distribution of image intensities for different brain regions can change substantially from scan to scan. Though intensity correction can sometimes alleviate this problem, it fails in more difficult scenarios in which different types of tissue are mapped to similar gray levels in one scan but different intensities in another. Here, we propose using multi-spectral data to create synthetic MRI scans matched to the intensity distribution of a given dataset using a physical model of acquisition. If the multi-spectral data are manually annotated, the labels can be transfered to the synthetic scans to build a dataset-tailored gold standard. The approach was tested on...
Juan Eugenio Iglesias, Ivo D. Dinov, Jaskaran Sing
Added 14 Feb 2011
Updated 14 Feb 2011
Type Journal
Year 2010
Where MICCAI
Authors Juan Eugenio Iglesias, Ivo D. Dinov, Jaskaran Singh, Gregory Tong, Zhuowen Tu
Comments (0)
books