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Heart Disease (Expert Forum)
MRI vs Echo vs Cath
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MRI vs Echo vs Cath
by Brent, Nov 20, 1999 12:00AM
MRI vs Echo vs Cath
I understand how Doppler echo can visualize
flowmetrics using false coloration. This, in
itself, is a less "direct" method than X-ray
based catheterization with contrast media.
I was recently subjected to a Cardiac MRI, which
was arguably the most unpleasant and tortuous
exams I have ever undertaken. My question is,
for multiple fenestrations or perimembraneous
defect search, how can MRI be definitive and
preferable to direct Catheterization for anatomic
shunt search and evaluation? I know it is
non-invasive, but it is highly "detached" from
the underlying real-time phenomenon. Thanks.
I understand how Doppler echo can visualize
flowmetrics using false coloration. This, in
itself, is a less "direct" method than X-ray
based catheterization with contrast media.
I was recently subjected to a Cardiac MRI, which
was arguably the most unpleasant and tortuous
exams I have ever undertaken. My question is,
for multiple fenestrations or perimembraneous
defect search, how can MRI be definitive and
preferable to direct Catheterization for anatomic
shunt search and evaluation? I know it is
non-invasive, but it is highly "detached" from
the underlying real-time phenomenon. Thanks.
Doctor's Answer
by CCF CARDIO MD JMF, Nov 22, 1999 12:00AM
Catheterization is still the gold standard for evaluating the functional significance of a VSD or shunt.
You are correct in your assessment. MRI however, will likely become a very useful too in the near future as flow mechanics are visualized via computer modelling.
You are correct in your assessment. MRI however, will likely become a very useful too in the near future as flow mechanics are visualized via computer modelling.
is Children's Hospital, and I feel like
I'm being taken for a ride. You are
absolutely correct, and I have a surgeon
straining at the leash to have his Cath
done, while the Cardios want to stay
"non-invasive". IMHO, this is nonsense,
especially after a long history of complaints
and echo data suggesting shunt.
THANKS.