Table 3 Distribution of ultrasound images by machine type and Operator.

From: Fetal-Net: enhancing Maternal-Fetal ultrasound interpretation through Multi-Scale convolutional neural networks and Transformers

Ultrasound Machine

Number of Patients

Number of Images

Operator Number

Voluson E6

807

5,862

Operator 1

Voluson S10

91

1,082

Operator 2

Aloka

270

3,560

Operator 3

Others

631

1,896

Others

Total

1,799

12,400

1,824

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