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Does this sentence require the adjective "an" before "MRI" or would it be grammatically correct without?

Recipients of MRI were three times as likely to remain on disability for a prolonged period of time.

Thanks for your insights.
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Comments  
Although you would write "Recipients of magnetic resonance imaging" and "Recipients of a magnetic resonance imaging scan," the acronym MRI has come to mean the latter and is spoken as "EmAreEye." So use "an."
AnonymousDoes this sentence require the adjective "an" before "MRI"
Not to my ear.
Anonymouswould it be grammatically correct without?
In my opinion it would.

CJ
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deadratuse "an."
I understand MRI as a unique method of medical testing. So, I think that the determiner "an" is redundant here.
Magnetic resonance imaging isn't a unique method of testing. It's one of several scanning techniques. Do you mean that it's a term for a general method of testing? If so, I agree with you, and I wouldn't use an article in front of the phrase "magnetic resonance imaging," but people say "I got an MRI" because of the attraction of the vowel in pronouncing "em," and because they got a particular scan at a particular appointment at a particular imaging center.
deadratMagnetic resonance imaging isn't a unique method of testing. It's one of several scanning techniques. Do you mean that it's a term for a general method of testing? If so, I agree with you, and I wouldn't use an article in front of the phrase "magnetic resonance imaging," but people say "I got an MRI" because of the attraction of the vowel in pronouncing "em," and because they got a particular scan at a particular appointment at a particular imaging center.
Yes, it's a bit like "coffee" when uncountable or "a coffee" meaning "a cup of coffee". However, I'd use "MRI" without the determiner "an" in the sentence put in the OP.
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Most people I know refer to getting "an MRI" to mean they are getting the test that uses MRI technology.

While Jim's ear doesn't find it odd to omit the "an" mine does.
BarbaraPAan MRI
Yes, I myself have gotten an MRI, but "Recipients of MRI" sounds different to me. I'd compare it with "Recipients of radiation therapy". In other words it seems acceptable to me to treat "MRI" as uncountable in that context. But even if I were to treat it as countable, I wouldn't use "an MRI"; I'd say "Recipients of MRIs".

No, I don't know why. Maybe it's just my idiosyncratic way of hearing it. Emotion: smile

CJ
Good point. I agree with what you're written. And I agree too that "MRIs" would be the way I'd say it too.
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