TY - JOUR
T1 - Influence of head orientation and implantation site of a novel transcutaneous bone conduction implant on MRI metal artifact reduction sequence
AU - Talon, Emile
AU - Wimmer, Wilhelm
AU - Hakim, Arsany
AU - Kiefer, Claus
AU - Pastore-Wapp, Manuela
AU - Anschuetz, Lukas
AU - Mantokoudis, Georgios
AU - Caversaccio, Marco D.
AU - Wagner, Franca
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022
Y1 - 2022
N2 - Purpose: The use of magnetic resonance imaging (MRI) is often limited in patients with auditory implants because of the presence of metallic components and magnets. The aim of this study was to evaluate the clinical usefulness of a customized MRI sequence for metal artifact suppression in patients with BONEBRIDGETM BCI 602 implants (MED-EL, Innsbruck, Austria), the successor of the BCI 601 model. Methods: Using our in-house developed and customized metal artifact reduction sequence (SEMAC-VAT WARP), MRI artifacts were evaluated qualitatively and quantitatively. MRI sequences were performed with and without artifact reduction on two whole head specimens with and without the BCI 602 implant. In addition, the influence of two different implantation sites (mastoid versus retrosigmoid) and head orientation on artifact presence was investigated. Results: Artifact volume was reduced by more than the 50%. Results were comparable with those obtained with the BCI 601, showing no significant differences in the dimensions of artifacts caused by the implant. Conclusion: SEMAC-VAT WARP was once more proved to be efficient at reducing metal artifacts on MR images. The dimensions of artifacts associated with the BCI 602 are not smaller than those caused by the BCI 601.
AB - Purpose: The use of magnetic resonance imaging (MRI) is often limited in patients with auditory implants because of the presence of metallic components and magnets. The aim of this study was to evaluate the clinical usefulness of a customized MRI sequence for metal artifact suppression in patients with BONEBRIDGETM BCI 602 implants (MED-EL, Innsbruck, Austria), the successor of the BCI 601 model. Methods: Using our in-house developed and customized metal artifact reduction sequence (SEMAC-VAT WARP), MRI artifacts were evaluated qualitatively and quantitatively. MRI sequences were performed with and without artifact reduction on two whole head specimens with and without the BCI 602 implant. In addition, the influence of two different implantation sites (mastoid versus retrosigmoid) and head orientation on artifact presence was investigated. Results: Artifact volume was reduced by more than the 50%. Results were comparable with those obtained with the BCI 601, showing no significant differences in the dimensions of artifacts caused by the implant. Conclusion: SEMAC-VAT WARP was once more proved to be efficient at reducing metal artifacts on MR images. The dimensions of artifacts associated with the BCI 602 are not smaller than those caused by the BCI 601.
KW - Artifact reduction
KW - BONEBRIDGE
KW - Magnetic resonance imaging
KW - SEMAC-VAT WARP
KW - WARP
UR - http://www.scopus.com/inward/record.url?scp=85123635370&partnerID=8YFLogxK
U2 - 10.1007/s00405-022-07272-3
DO - 10.1007/s00405-022-07272-3
M3 - Article
C2 - 35072767
AN - SCOPUS:85123635370
SN - 0937-4477
JO - European Archives of Oto-Rhino-Laryngology
JF - European Archives of Oto-Rhino-Laryngology
ER -