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Magnetic resonance Imaging(MRI)-a noninvasive diagnostic

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Magnetic resonance Imaging(MRI)-a noninvasive diagnostic [#permalink] New post 02 Jun 2005, 02:23
00:00
A
B
C
D
E

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(N/A)

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80% (02:25) correct 20% (01:11) wrong based on 6 sessions
Magnetic resonance Imaging(MRI)-a noninvasive diagnostic procedure can be used to identify blockages in the coronary arteries.In contrast to angiograms-the invasive procedure customarily used -MRI's pose no risk to patients.Thus to gaurantee patient safety, in the attempt to diagnose arterial blockages ,MRI's shoulf replace angiograms in all attempts at diagnosing coronary blockages.

Which of the following would most support the recommendation above?
a)Angiograms can be used to diagnose conditions other than blockages in arteries
b)MRI's were designed primarily in order to diagnose blockages in the coronary arteries
c)Angiograms reveal more information about the nature of blockage than a MRI can
d)An MRI is just as likely as an angiogram to identify an arterial blockage
e)Some patients for whom an angiogram presents no risk are unwilling to undergo an MRI

Explanations please.

Best
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 [#permalink] New post 02 Jun 2005, 03:29
premise: I don't like this question because it seems to play on a subtle difference between diagnosis of arterial blockages and diagnosis of coronary blockages, and I am not supposed to know the difference!

A: out. weakens
C. out. weakens
E. out. weakens.

it is a tough choice b/w B and D.
conclusion:
MRI's should replace angiograms in all attempts at diagnosing coronary blockages.
Given my premise about the question, my final answer is B.
MRI's were designed primarily in order to diagnose blockages in the coronary arteries
while D talks about:
An MRI is just as likely as an angiogram to identify an arterial blockage

hope this helps
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 [#permalink] New post 02 Jun 2005, 03:35
(B) would be the best option. If it was designed primarily in order to diagnose blockages in coronary arteries, then the method would be perfected with the one function in mind.

(A) just serves to say that an Angiograms serves many other purposes.

(C) goes to say MRI is not as good as an Angiogram


(D) looks like a good choice. If an MRI scan is equally capable to identify an arterial blockage, then it should be used since it's a safer method.

(E) goes to indicate that patients have no confidence in the procedure.

Between (D) and (B), I would go with (B). We're already told that MRI is safe, so this premise holds for both (D) and (B). But (B) is stronger as we're told the primary purpose of MRI is to locate blockage in coronary arteries.

B for me.
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 [#permalink] New post 02 Jun 2005, 08:06
The only choices left are B and D

D says, they are as likely as, which could mean, sometimes not better than Angiograms .

B says, MRI is specially designed for that purpose and argument already states that it does the job of identifying the arterial blockages.

I will go with B
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 [#permalink] New post 02 Jun 2005, 08:22
I'll go for D.
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 [#permalink] New post 02 Jun 2005, 12:21
D)...both are as likely to identify the blockage, but MRI has fewer risks. so lets choose MRI.

B) angiograms can be designed primarily to diagnose XYZ as well. we dont know. its not enough to support the recommendation.
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 [#permalink] New post 02 Jun 2005, 15:29
in B we know that MRI is better than AG.....

D says both are equally effective which doesnt help us
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 [#permalink] New post 02 Jun 2005, 17:13
the fact that they were designed for it doesn't mean that they are better....

only D talks about whether MRIs are as effecting as the traditional method...hence i would go for D too
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 [#permalink] New post 02 Jun 2005, 17:28
Between B/D I will go for D .
because we are asked to find out the option which supports the recommendation..

So any good comment on functionality of the method can be used to recommend.
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 [#permalink] New post 02 Jun 2005, 18:20
D it is.

The argument - replace angiogram with MRI - Why? Because they are safer. However, at the least they shud be able to have the same functionality as angiogram. D says that. Just because MRI is designed to detect coronary arteries, it doesn't mean it is better than angiogram functionalitywise.
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 [#permalink] New post 03 Jun 2005, 00:40
1 more for D.
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 [#permalink] New post 03 Jun 2005, 02:22
Clear D imo

2 qualities => being safe, efficient. MRI is safer and just as effitient as the other
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 [#permalink] New post 03 Jun 2005, 09:27
very nice explanations indeed.

The answer is D.

Best.
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Re: [#permalink] New post 18 Nov 2011, 23:54
gmat2me2 wrote:
in B we know that MRI is better than AG.....

D says both are equally effective which doesnt help us



Hi,
Only the premise says, MIR is better than Angio.
B talks only about MRI's.
D says they are equal, so with premise, conclusions get easier.

Thanks!
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Re: Magnetic resonance Imaging(MRI)-a noninvasive diagnostic [#permalink] New post 13 Dec 2011, 01:53
b)MRI's were designed primarily in order to diagnose blockages in the coronary arteries
Ok, if MRI's have some features that is interior than angiogram, then MRI should not be replaced. So, this answer is wrong.
d)An MRI is just as likely as an angiogram to identify an arterial blockage

This answer support MRI have 1 feature better than angiogram. Other features are the same. So, support.
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Re: Magnetic resonance Imaging(MRI)-a noninvasive diagnostic [#permalink] New post 26 Dec 2011, 11:19
it should be B or D
i will say D
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Re: Magnetic resonance Imaging(MRI)-a noninvasive diagnostic [#permalink] New post 28 Dec 2011, 01:41
After searching in some Chinese forum, I found the OA is D
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Re: Magnetic resonance Imaging(MRI)-a noninvasive diagnostic [#permalink] New post 28 Dec 2011, 02:39
i agree with D
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Last edited by mydreammba on 28 Dec 2011, 17:07, edited 1 time in total.
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Re: Magnetic resonance Imaging(MRI)-a noninvasive diagnostic [#permalink] New post 28 Dec 2011, 04:11
I think it should be D as the end purpose of argument is to conclude that MRI can replace other method of diagnostic and D says that it is same as using MRI so I ill go for D
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Re: Magnetic resonance Imaging(MRI)-a noninvasive diagnostic   [#permalink] 28 Dec 2011, 04:11
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