To investiage the appearance of internal organs, which cannot be visually examined without opening the body surgerically.

[image]Ultra Sound Scanning

What is the procedure?

• Uses a transducer to produce a high frequency sound waves
• can penetrate soft tissue
• a reciever is used reflect sound from surfaces inside the body
• computer software coverts echoes into image/data

[image]

Ultra sound scanning

 Give one advantage & one disadvantage

DIS

• cannot penetrate bone
• cannot scan the brain
• poor image/shows less detail

ADV

+ low risk

+produces real-time moving images (gauge fetus health)

+ inexpensive

What are the usages of

Ultra sound scanning?

Usages

• can tell if there is more than one fetus
• looks at stage of development
• look for spina bifida
• helps position needle accurately = aminocentesis or chorionic villus sample
• observe condition & structure of organs i.e kident, liver