Transcranial ultrafast ultrasound Doppler imaging: A phantom study.

Ultrafast ultrasound Doppler imaging facilitates the assessment of cerebral hemodynamics with high spatio-temporal resolution. However, the significant acoustic impedance mismatch between the skull and soft tissue results in phase aberrations, which can compromise the quality of transcranial imaging and introduce biases in velocity and direction quantification of blood flow. This paper proposed an aberration correction method that combines deep learning-based skull sound speed modelling with ray theory to realize transcranial plane-wave imaging and ultrafast Doppler imaging.

[Allergen detection among 2 769 children with allergic symptoms in Ningbo area].

A total of 2 769 children with allergic disease were admitted from October 2010 to December in Ningbo Women & Children's Hospital. Fourteen kinds of serum specific-IgE were detected by immunoblotting method. Among the 2 769 children, the total positive rate of sIgE was 76.