Fetal Sacral Ratio: A Novel Method for Prenatal Sonographic Assessment of Sacral Abnormalities.
J Ultrasound Med
; 41(8): 2005-2010, 2022 Aug.
Article
em En
| MEDLINE
| ID: mdl-34792823
ABSTRACT
OBJECTIVES:
The sacral ratio (SR) was described as a postnatal X-ray-based method to detect sacral abnormalities and predict functional prognosis for fecal continence in children with anorectal malformations (ARMs). The present study aimed to describe a novel method of assessing sonographic fetal sacral ratio (f-SR) in a normal population of fetuses.METHODS:
Sixty three-dimensional (3D) ultrasound reconstruction images of the sacrum obtained from routine low-risk scans performed between 21 and 26 weeks of gestation served for measurement. The f-SR was calculated in a coronal view as the ratio between lines drawn at the upper and lower levels of the iliac bone and the 5th sacral vertebra. Bland-Altman plots assessed the inter- and intrareader variabilities of measurements.RESULTS:
The f-SR in the normal population of fetuses was 0.913 (±0.094). During the study period, three cases with ARM were examined and had a mean f-SR of 0.55. There was good repeatability of measurements and between readers' agreement.CONCLUSIONS:
The present study introduces a novel prenatal sonographic f-SR that can be reliably calculated on prenatal 3D ultrasound with good reliability and reproducibility. Future research will identify the clinical significance of f-SR abnormalities in ARM and their long-term impact on continence.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doenças da Coluna Vertebral
/
Malformações Anorretais
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Child
/
Female
/
Humans
/
Pregnancy
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article