Experimental Intracardiac Visualization

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Abstract
INTRACARDIAC visualization differs from conventional endoscopic examinations because of unique conditions present within the heart and the great vessels. First of all, the blood filling these spaces is opaque to all visible wavelengths of light. Secondly, blood cannot safely be excluded from any chamber of the heart for more than a brief interval without the use of complex bypass mechanisms. Finally, most structures are in a state of motion too rapid to be followed by the naked eye.Doubtless, the direct inspection of intracardiac defects would be of value, both to the diagnostician and to the surgeon. With such a . . .

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