TY - JOUR
T1 - Influence of common orthodontic appliances on the diagnostic quality of cranial magnetic resonance images
AU - Elison, J. Matthew
AU - Leggitt, V. Leroy
AU - Thomson, Matthew
AU - Oyoyo, Udo
AU - Wycliffe, N. Dan
N1 - Am J Orthod Dentofacial Orthop. 2008 Oct;134(4):563-72. doi: 10.1016/j.ajodo.2006.10.038. Evaluation Studies
PY - 2008/10
Y1 - 2008/10
N2 - Introduction: The aim of this study was to evaluate cranial magnetic resonance (MR) image distortion caused by various orthodontic brackets. Methods: Ten subjects received 5 consecutive cranial MR scans. A control scan was conducted with Essix trays (GAC International, Bohemia, NY) fitted over the maxillary and mandibular teeth. Four experimental MR scans of the head were conducted with plastic, ceramic, titanium, and stainless steel brackets incorporated into the Essix tray material. Each MR scan consisted of 4 sequences: sagittal T1-weighted spin echo (T1 sagittal), axial T2-weighted spin echo (T2 axial), gradient echo, and diffusion-weighted imaging. Three board-certified neuroradiologists examined the MR images for distortion in predetermined regions of the head. Results: The paired Wilcoxon signed rank test showed a statistically significant difference between the mean distortion scores of stainless steel brackets and the mean distortion scores of the other experimental MR scans (P
AB - Introduction: The aim of this study was to evaluate cranial magnetic resonance (MR) image distortion caused by various orthodontic brackets. Methods: Ten subjects received 5 consecutive cranial MR scans. A control scan was conducted with Essix trays (GAC International, Bohemia, NY) fitted over the maxillary and mandibular teeth. Four experimental MR scans of the head were conducted with plastic, ceramic, titanium, and stainless steel brackets incorporated into the Essix tray material. Each MR scan consisted of 4 sequences: sagittal T1-weighted spin echo (T1 sagittal), axial T2-weighted spin echo (T2 axial), gradient echo, and diffusion-weighted imaging. Three board-certified neuroradiologists examined the MR images for distortion in predetermined regions of the head. Results: The paired Wilcoxon signed rank test showed a statistically significant difference between the mean distortion scores of stainless steel brackets and the mean distortion scores of the other experimental MR scans (P
KW - Reproducibility of Results
KW - Humans
KW - Male
KW - Ceramics
KW - Artifacts
KW - Magnetic Resonance Imaging
KW - Orthodontic Brackets
KW - Stainless Steel
KW - Head/anatomy & histology
KW - Titanium
KW - Adult
KW - Female
KW - Plastics
KW - Observer Variation
UR - https://www.scopus.com/pages/publications/53049108058
UR - https://www.scopus.com/pages/publications/53049108058#tab=citedBy
UR - https://www.mendeley.com/catalogue/9e455f75-9cbb-39ea-a273-7e68689ca961/
U2 - 10.1016/j.ajodo.2006.10.038
DO - 10.1016/j.ajodo.2006.10.038
M3 - Article
C2 - 18929275
SN - 0889-5406
VL - 134
SP - 563
EP - 572
JO - American Journal of Orthodontics and Dentofacial Orthopedics
JF - American Journal of Orthodontics and Dentofacial Orthopedics
IS - 4
ER -