TY - JOUR
T1 - Alveolar bone measurements in magnetic resonance imaging compared with cone beam computed tomography
T2 - a pilot, ex-vivo study
AU - Fuglsig, João Marcus de Carvalho e Silva
AU - Hansen, Brian
AU - Schropp, Lars
AU - Nixdorf, Donald R.
AU - Wenzel, Ann
AU - Spin-Neto, Rubens
PY - 2023
Y1 - 2023
N2 - Objectives: To compare alveolar bone height and width measurements from zero-echo-time MRI (ZTE-MRI) and cone beam CT (CBCT), in human specimens. Material and methods: Twenty posterior edentulous sites in human cadaver specimens were imaged with CBCT and ZTE-MRI. Bone height and width at 1, 3, 5, 7 and 9 mm from the top of the alveolar ridge was measured by two trained observers in cross-sections of a site where an implant was to be planned. Twenty percent of the sample was measured in duplicate to assess method error and intra-observer reproducibility (ICC). The differences between CBCT and ZTE-MRI measurements were compared (t-test). Results: Inter- and intra-observer reproducibility was >0.90. The method error (average between observers) for bone height was 0.45 mm and 0.39 mm, and for bone width (average) was 0.52 mm and 0.80 mm (CBCT and ZTE-MRI, respectively). The majority of the bone measurement differences were statistically insignificant, except bone width measurements at 5 mm (p ≤.05 for both observers). Mean measurement differences were not larger than the method error. Conclusion: ZTE-MRI is not significantly different from CBCT when comparing measurements of alveolar bone height and width.
AB - Objectives: To compare alveolar bone height and width measurements from zero-echo-time MRI (ZTE-MRI) and cone beam CT (CBCT), in human specimens. Material and methods: Twenty posterior edentulous sites in human cadaver specimens were imaged with CBCT and ZTE-MRI. Bone height and width at 1, 3, 5, 7 and 9 mm from the top of the alveolar ridge was measured by two trained observers in cross-sections of a site where an implant was to be planned. Twenty percent of the sample was measured in duplicate to assess method error and intra-observer reproducibility (ICC). The differences between CBCT and ZTE-MRI measurements were compared (t-test). Results: Inter- and intra-observer reproducibility was >0.90. The method error (average between observers) for bone height was 0.45 mm and 0.39 mm, and for bone width (average) was 0.52 mm and 0.80 mm (CBCT and ZTE-MRI, respectively). The majority of the bone measurement differences were statistically insignificant, except bone width measurements at 5 mm (p ≤.05 for both observers). Mean measurement differences were not larger than the method error. Conclusion: ZTE-MRI is not significantly different from CBCT when comparing measurements of alveolar bone height and width.
KW - Bone measurements
KW - CBCT
KW - dental implant
KW - MRI
UR - http://www.scopus.com/inward/record.url?scp=85138243651&partnerID=8YFLogxK
U2 - 10.1080/00016357.2022.2121321
DO - 10.1080/00016357.2022.2121321
M3 - Journal article
C2 - 36112428
AN - SCOPUS:85138243651
SN - 0001-6357
VL - 81
SP - 241
EP - 248
JO - Acta Odontologica Scandinavica
JF - Acta Odontologica Scandinavica
IS - 3
ER -