UNIGE document Scientific Article - Review
previous document  unige:19585  next document
add to browser collection
Title

Brain and spine MRI artifacts at 3Tesla
Authors
Vargas, M. I.
Delavelle, Jacqueline
Kohler, R.
Becker, Christoph
Lövblad, Karl-Olof
Published in Journal of Neuroradiology. 2009, vol. 36, no. 2, p. 74-81
Abstract INTRODUCTION: We illustrate here the most common MRI artifacts found on routine 3T clinical neuroradiology that can simulate pathology and interfere with diagnosis. MATERIALS AND METHODS: Our group has worked with a 3-T Magnetom Trio (Siemens, Erlangen, Germany) system for two years, with 50% of our time devoted to clinical work and 50% dedicated to research; 65% of the clinical time is dedicated to neuroradiology (2705 patients) and the remaining time to whole-body MRI. We have detected these artifacts during our case readings and have selected the most representative of each type to illustrate here. RESULTS: We have observed magnetic susceptibility artifacts (29%), pulsation artifacts (57%), homogeneity artifacts (3%), motion artifacts (6%), truncation artifacts (3%) and, finally, artifacts due to poor or inadequate technique in the examined region. CONCLUSION: High-field imaging offers the benefit of a higher signal-to-noise ratio, thus making possible the options of a higher imaging matrix, thinner slices, the use of spectroscopy and diffusion tensor imaging in the routine clinical neuroradiology with a reduction in time spent. It is vital to be able to recognize these artifacts in everyday practice as they can mimic pathological appearances, thus causing diagnostic errors that could lead to unnecessary treatment. Indeed, most of these artifacts could be avoided with an adequate technique.
Keywords *Artifacts — Brain/*pathology — Humans — Image Processing, Computer-Assisted — Magnetic Resonance Imaging/*methods — Spinal Canal/*pathology — Spinal Cord/*pathology
Identifiers
PMID: 18835643
Full text
This document has no fulltext available yet, but you can contact its author by using the form below.
Structures
Faculté de médecine / Section de médecine clinique / Département de radiologie et informatique médicale
Research groups Imagerie et radiologie interventionnelle du foie, des voies biliaires et du pancréas (316)
Ischémie cérébrale et connectivité (801)
Citation
(ISO format) 		VARGAS, M. I. et al. Brain and spine MRI artifacts at 3Tesla. In: Journal of Neuroradiology, 2009, vol. 36, n° 2, p. 74-81. https://archive-ouverte.unige.ch/unige:19585

204 hits

0 download

Contact an author

Update request

Update

Deposited on : 2012-04-23

Export document
Format :
Citation style :