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>*. The first, and more precise, begins with a cardiocatherization. Dye--
>radioactive dye, I think--is injected into the heart, and a monitor--a
>fluoroscope?--is used to determine how the dye is circulated.
Itself dangerous. ANY iatrogenic procedure CAN and usually DOES introduce
air into the circulation, even moreso if a vein is catheterised.
>*. The second, and less precise, involves the use of Doppler (?) radar,
>and placement of electrodes on various parts of the chest.
>
>The second test is really no big deal--it's not an invasive procedure.
>The first test--well, I had one done way back when I was in college, and
>*that* was more complicated, but I experienced no unpleasant side effects.
I'll bet you don't get DCI very often either. To get the best signal the
radiographer will inject a 'contrast medium'. For echocardiography they
shake up a bottle of saline and inject that. The saline of course is full
of 'micro' bubbles; often very visible bubbles...
/rat
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shelps@ac*.ma*.ad*.ed*.au*|Stephen Helps PhD Ack! ___/|
FAX (08)232-3283 |Anaesthesia & Intensive Care \O.o|
Voice (08)224-5495 |University of Adelaide =(___)=
|ADELAIDE, 5005, South Australia U
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"I believe OS/2 is destined to be the most important operating system, and
possibly program, of all time" Bill Gates, CEO, Microsoft Corporation
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