Key result
Retrograde catheterization and contrast injection successfully demonstrated the coronary arteries or branches in 50% of human subjects, as well as in normal and obstructed canine models.
Why the study?
Does retrograde catheterization with contrast injection allow visualization of coronary arteries in humans and dogs?
Population
10 human individuals, 5 dogs with normal hearts, and 10 dogs with previously obstructed coronary arteries
Design
Case_series
Authors
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May enable selective coronary visualization when antegrade access fails; leaves open prospective safety and efficacy validation.
Observational (n=10)
Does retrograde catheterization with contrast injection allow visualization of coronary arteries in humans and dogs?
This early feasibility study demonstrated that coronary arteries can be visualized in vivo using retrograde catheterization and contrast injection in both humans and canine models.
Helmsworth et al. (1951) reported an observational. Retrograde catheterization and contrast injection was evaluated on Demonstration of coronary arteries or branches. Retrograde catheterization and contrast injection successfully demonstrated the coronary arteries or branches in 50% of human subjects, as well as in normal and obstructed canine models.
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