General and efficient super-resolution method for multi-slice MRI

D H J Poot; V Van Meir; J Sijbers

doi:10.1007/978-3-642-15705-9_75

General and efficient super-resolution method for multi-slice MRI

Med Image Comput Comput Assist Interv. 2010;13(Pt 1):615-22. doi: 10.1007/978-3-642-15705-9_75.

Authors

D H J Poot¹, V Van Meir, J Sijbers

Affiliation

¹ BIGR, Erasmus Medical Center, Rotterdam.

PMID: 20879282
DOI: 10.1007/978-3-642-15705-9_75

Abstract

In this paper, a method is developed that reconstructs a high resolution image from an arbitrary set of multi-slice 3D MR images with a high in-plane resolution and a low through-plane resolution. Such images are often recorded to increase the efficiency of the acquisition. With a model of the acquisition of MR images, which is improved compared to previous super-resolution methods for MR images, a large system with linear equations is obtained. With the conjugated gradient method and this linear system, a high resolution image is reconstructed from MR images of an object. Also, a new and efficient method to apply an affine transformation to multi-dimensional images is presented. This method is used to efficiently reconstruction the high resolution image from multislice MR images with arbitrary orientations of the slices.

MeSH terms

Algorithms*
Anatomy, Cross-Sectional / methods*
Image Enhancement / methods*
Image Interpretation, Computer-Assisted / methods*
Imaging, Three-Dimensional / methods*
Magnetic Resonance Imaging / methods*
Reproducibility of Results
Sensitivity and Specificity