The length of the visual axis was the distance from the corneal vertex to the macular fovea, and it was also measured by A-mode ultrasound in sitting position with different ultrasonic velocity.

以角膜顶点至黄斑中心凹距离作为视轴长度，此连线上测量硅油后间隙的厚度。

youdao

Objective To explore a suitable mode of prenatal ultrasound diagnosis of fetal malformations with early neonatal surgical treatment.

目的探讨胎儿畸形的产前超声诊断和新生儿外科早期治疗模式。

youdao

Conclusion the B-mode ultrasound is a reliable, simple and convenient imaging modality in the diagnosis of fetus edema syndrome.

结论B型超声检查是发现和诊断胎儿水肿综合征最可靠和最简便的方法。

youdao