Novel Metal Artifact Reduction Techniques with Use of Slice-Encoding Metal Artifact Correction and View-Angle Tilting MR Imaging for Improved Visualization of Brain Tissue near Intracranial Aneurysm Clips.

Friedrich, B; Wostrack, M; Ringel, F; Ryang, Y-M; Förschler, A; Waldt, S; Zimmer, C; Nittka, M; Preibisch, C

doi:10.1007/s00062-014-0324-4

Titel:: Novel Metal Artifact Reduction Techniques with Use of Slice-Encoding Metal Artifact Correction and View-Angle Tilting MR Imaging for Improved Visualization of Brain Tissue near Intracranial Aneurysm Clips.
Dokumenttyp:: Journal Article
Autor(en):: Friedrich, B; Wostrack, M; Ringel, F; Ryang, Y-M; Förschler, A; Waldt, S; Zimmer, C; Nittka, M; Preibisch, C
Abstract:: The MR image quality after intracranial aneurysm clipping is often impaired because of artifacts induced by metal implants. The purpose of the present study was to evaluate the benefit of a new WARP sequence with slice-encoding metal artifact correction (SEMAC) and view-angle tilting (VAT) MR imaging as novel artifact reduction techniques.A new WARP TSE (a work-in-progress software package provided by Siemens Healthcare) sequence was implemented for cranial applications based on a turbo spin echo (TSE) sequence. T1- and T2-weighted images with standard and WARP TSE sequences were acquired from 6 patients with 11 clipping sites, and the images were compared based on artifact size and general image quality.T2- and T1-weighted WARP TSE sequences resulted in a highly significant reduction of metal artifacts compared with standard sequences (T2w- WARP TSE: 89.8 ± 1.4 %; T1w- WARP TSE: 84.9 ± 2.9 %; p < 0.001) without a substantial loss of image quality.The use of a new WARP TSE sequence after aneurysm clipping is highly beneficial for increasing the diagnostic MR image quality due to a striking reduction of metal artifacts.
Zeitschriftentitel:: Clin Neuroradiol
Jahr:: 2016
Band / Volume:: 26
Heft / Issue:: 1
Seitenangaben Beitrag:: 31-7
Sprache:: eng
Volltext / DOI:: doi:10.1007/s00062-014-0324-4
PubMed:: http://view.ncbi.nlm.nih.gov/pubmed/25081235
Print-ISSN:: 1869-1439
TUM Einrichtung:: Fachgebiet Neuroradiologie (Prof. Zimmer); Neurochirurgische Klinik und Poliklinik
BibTeX