PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 8076176

[Stereotaxy in MRI].

C Derosier·M Desgeorges·G Cosnard
View original source ↗Export metadata ↓

Abstract

The first biopsy in Val-de-Grâce has been performed in 1987, under CT alone, with a Leksell frame. 150 punctures have been performed for a diagnostic or a therapeutic goal. Since 1990, stereotaxy is performed under MRI. 320 punctures have been made with 1.9% mortality and 1.3% morbidity. The future of stereotactic technics is therapeutic: precision of surgery (vascular malformation, neurogenous tumor, deep tumor), precision of radiotherapy, new anti-tumoral treatments.

Explore related subjects

Brain DiseasesHumansMagnetic Resonance ImagingStereotaxic TechniquesEnglish AbstractJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

C Derosier, M Desgeorges, G Cosnard. 1994. [Stereotaxy in MRI].. https://pubmed.ncbi.nlm.nih.gov/8076176/

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

KEEP EXPLORING

Related citations

PubMed2007

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↗