Table 3.

Comparison of ventricular volume estimation bey ultrasonography.

	Año	Studied population	Method	Automatic segmentation	Accuracy, reliability and/or gold standard comparation
Csutak et al.	2003	250 healthy infants. Age range from 26 weeks of GA to 6 months	Traced the area of seven to ten sections for each ventricle and multiply by the distance between them	No	No
Kishimoto et al.	2016	26 preterm infants. 11 with moderate to severe IVH	Motorized device. 2D US images used to build a 3D US. Images were manually segmented in parallel sagittal slices 1 mm apart	No	Yes. Compared 3D US to 3D MRI manual segmentation
Qiu et al.	2017	14 preterm infants. 4 with moderate to severe IVH. 70 3D US	Motorized device (same as in Kishimoto et al.). 3D US built from 2D US. Developed a multiatlas segmentation method	Yes	Yes. Mean DSC of 86.4% ± 8.3%
Gontard et al.	2020	10 preterm infants with PHVD. 152 3D US scans	Specific 3d transducer (SVNA5-8B, 5–8 MHz). Developed a deep learning automatic segmentation method	Yes	Yes. Mean DSC 87% in training data. Mean DSC 80% in validation data

GA gestational age, MRI magnetic resonance imaging, DSC dice similarity coefficient, PHVD post haemorrhagic ventricular dilatation.