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Author Topic: What is the difference between a CT Scan and an MRI scan?  (Read 281805 times)

Offline evan_au

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Re: What is the difference between a CT Scan and an MRI scan?
« Reply #50 on: 10/06/2012 13:40:19 »
Another commonly-used imaging technology is ultrasound.
When pregnant women have an ultrasound, they are advised to drink some water first, so that the baby shows up better against the background (which might be the bladder?).
They have improved the technology significantly - my daughter had to drink much less water to get a good ultrasound image than my wife did.

PS: You don't want to do a CT scan of a pregnant woman, as the ionising radiation is not good for the baby.
- An MRI would be medically OK as there is no ionising radiation, but it's hard to tell the baby to sit still long enough to get a good image
- Overall an ultrasound is far easier - it's smaller & cheaper, and you don't have problems with claustrophobia and strong magnets attracting stray pieces of metal. 
 

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Re: What is the difference between a CT Scan and an MRI scan?
« Reply #50 on: 10/06/2012 13:40:19 »

 

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