PubMed Health⌕ Search

PubMed · 748996

[Computerized axial tomography. Technical principles, clinical application, organizational aspects].

Abstract

The technical principles, clinical application and organisational problems associated with computerised axial tomography are discussed. Numerous examples of pictures obtained on the brain and the whole body and in the normal subjects and various diseases are presented.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

B Damascelli, F Garbagnati, G Scotti, C De Grandi. [Computerized axial tomography. Technical principles, clinical application, organizational aspects].. https://pubmed.ncbi.nlm.nih.gov/748996/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

A penalized likelihood approach to magnetic resonance image reconstruction.

Currently, images acquired via magnetic resonance imaging (MRI) and functional magnetic resonance imaging (fMRI) technology are reconstructed using the discrete inverse Fourier transform. While computationally convenient, this approach is not able to filter out noise. This is a serious limitation because the amount of noise in MRI and fMRI can be substantial. In this paper, we propose an alternative approach to reconstruction, based on penalized likelihood methodology. In particular, we focus on non-linear shrinkage estimators and show that this approach achieves a great reduction in integrated mean squared error (IMSE) of the estimated image with respect to the currently used estimator. This approach is extremely fast and easy to implement computationally. In addition, it can be combined with various alternative approaches to MR image reconstruction and can be easily adapted to other, non-MRI contexts, in which the observed data and the quantities of interest are related via a linear transform.

Brain Diseases↗