Statistical Characterisation of Fetal Anatomy in Simple Obstetric Ultrasound Video Sweeps.
Ultrasound Med Biol
; 50(7): 985-993, 2024 Jul.
Article
em En
| MEDLINE
| ID: mdl-38692940
ABSTRACT
OBJECTIVE:
We present a statistical characterisation of fetal anatomies in obstetric ultrasound video sweeps where the transducer follows a fixed trajectory on the maternal abdomen.METHODS:
Large-scale, frame-level manual annotations of fetal anatomies (head, spine, abdomen, pelvis, femur) were used to compute common frame-level anatomy detection patterns expected for breech, cephalic, and transverse fetal presentations, with respect to video sweep paths. The patterns, termed statistical heatmaps, quantify the expected anatomies seen in a simple obstetric ultrasound video sweep protocol. In this study, a total of 760 unique manual annotations from 365 unique pregnancies were used.RESULTS:
We provide a qualitative interpretation of the heatmaps assessing the transducer sweep paths with respect to different fetal presentations and suggest ways in which the heatmaps can be applied in computational research (e.g., as a machine learning prior).CONCLUSION:
The heatmap parameters are freely available to other researchers (https//github.com/agleed/calopus_statistical_heatmaps).Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ultrassonografia Pré-Natal
/
Feto
Limite:
Female
/
Humans
/
Pregnancy
Idioma:
En
Revista:
Ultrasound Med Biol
Ano de publicação:
2024
Tipo de documento:
Article