Mandibular dimensions and growth in 11- to 26-week-old Danish fetuses studied by 3D ultrasound
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Mandibular dimensions and growth in 11- to 26-week-old Danish fetuses studied by 3D ultrasound. / Hermann, Nuno V; Darvann, Tron A; Sundberg, Karin; Kreiborg, Sven; Jørgensen, Connie.
I: Prenatal Diagnosis, Bind 30, Nr. 5, 2010, s. 408-12.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Mandibular dimensions and growth in 11- to 26-week-old Danish fetuses studied by 3D ultrasound
AU - Hermann, Nuno V
AU - Darvann, Tron A
AU - Sundberg, Karin
AU - Kreiborg, Sven
AU - Jørgensen, Connie
N1 - Keywords: Adult; Denmark; Female; Fetal Development; Gestational Age; Humans; Imaging, Three-Dimensional; Mandible; Pregnancy; Reference Values; Ultrasonography, Prenatal; Young Adult
PY - 2010
Y1 - 2010
N2 - OBJECTIVE: To present normative data on prenatal mandibular morphology and growth. MATERIAL AND METHODS: Fifty-four normal fetuses (Danish Caucasian) were included in the study (gestational age: 11-26 weeks). Fetuses were scanned using a GE Voluson 730 Expert 3D scanner. Scans were visualized and analyzed using GE 4DVIEW software. Mandibular dimensions [base length (B), ramus height (H), and total length (L)] and the mandibular angle (phi) were measured, and the mandibular index was calculated. Method error was estimated by duplicate measurements. Growth was calculated by regressing measured variables on age. RESULTS: Mandibular measurements were found to be reliable [precision: 0.5-1.2 mm (1SD)]. Mean mandibular variable values at week 11: B = 5.2 +/- 2.5 mm; H = 2.7 +/- 1.3 mm; L = 7.7 +/- 3.2 mm; phi = 149 +/- 6.0 degrees; and at week 26: B = 22.6 +/- 2.5 mm; H = 12.3 +/- 1.3 mm; L = 33.1 +/- 3.2 mm; phi = 135 +/- 6.0 degrees. A linear model described growth (B(g)/H(g)/L(g)/phi(g)) giving B(g) = 1.2; H(g) = 0.64; L = 1.7 mm/week; phi(g) = - 0.9 degrees/week. CONCLUSION: Normative 3D data values for the human mandible in 11- to 26-week-old fetuses were presented. All measured mandibular parameters could be described using a linear increasing model from 11 to 26 weeks. All linear dimensions increased in size, while the mandibular angle decreased steadily during the observation period.
AB - OBJECTIVE: To present normative data on prenatal mandibular morphology and growth. MATERIAL AND METHODS: Fifty-four normal fetuses (Danish Caucasian) were included in the study (gestational age: 11-26 weeks). Fetuses were scanned using a GE Voluson 730 Expert 3D scanner. Scans were visualized and analyzed using GE 4DVIEW software. Mandibular dimensions [base length (B), ramus height (H), and total length (L)] and the mandibular angle (phi) were measured, and the mandibular index was calculated. Method error was estimated by duplicate measurements. Growth was calculated by regressing measured variables on age. RESULTS: Mandibular measurements were found to be reliable [precision: 0.5-1.2 mm (1SD)]. Mean mandibular variable values at week 11: B = 5.2 +/- 2.5 mm; H = 2.7 +/- 1.3 mm; L = 7.7 +/- 3.2 mm; phi = 149 +/- 6.0 degrees; and at week 26: B = 22.6 +/- 2.5 mm; H = 12.3 +/- 1.3 mm; L = 33.1 +/- 3.2 mm; phi = 135 +/- 6.0 degrees. A linear model described growth (B(g)/H(g)/L(g)/phi(g)) giving B(g) = 1.2; H(g) = 0.64; L = 1.7 mm/week; phi(g) = - 0.9 degrees/week. CONCLUSION: Normative 3D data values for the human mandible in 11- to 26-week-old fetuses were presented. All measured mandibular parameters could be described using a linear increasing model from 11 to 26 weeks. All linear dimensions increased in size, while the mandibular angle decreased steadily during the observation period.
U2 - 10.1002/pd.2482
DO - 10.1002/pd.2482
M3 - Journal article
C2 - 20306462
VL - 30
SP - 408
EP - 412
JO - Prenatal Diagnosis
JF - Prenatal Diagnosis
SN - 0197-3851
IS - 5
ER -
ID: 23089473