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Evaluation of contrast media used in man for coronary arteriography
Insights
Hypaque 85 is the preferred contrast medium for coronary arteriography. Injection into the right coronary artery poses greater risks than left, but Sones
Area of Science:
- Cardiovascular Medicine
- Radiology
- Medical Imaging
Background:
- Coronary arteriography is a crucial diagnostic procedure.
- The choice of contrast media and injection technique can influence patient safety and diagnostic accuracy.
- Understanding the impact of different contrast agents on electrocardiographic (ECG) changes is vital for risk assessment.
Purpose of the Study:
- To evaluate electrocardiographic changes following the injection of four different contrast media into the coronary arteries.
- To compare the safety and efficacy of various contrast media and arteriographic techniques.
- To determine the optimal contrast agent and injection site for coronary arteriography.
Main Methods:
- Injection of four contrast media into the right and left coronary arteries of human subjects.
- Monitoring and analysis of induced electrocardiographic (ECG) changes.
- Comparative assessment of different media, injection techniques (Sones' and Judkins'), and coronary arteries (right vs. left).
Main Results:
- Significant differences in ECG changes were observed among the tested contrast media.
- Injection into the right coronary artery induced more hazardous ECG changes compared to the left coronary artery.
- No significant difference in safety was found between the Sones' and Judkins' arteriographic techniques.
Conclusions:
- Hypaque 85 is identified as the contrast medium of choice for coronary arteriography due to its safety profile.
- Performing coronary arteriography via the right coronary artery is associated with higher risks.
- Both Sones' and Judkins' techniques are considered equally safe for coronary arteriography.
Abstract:
The electrocardiographic changes induced by the injection of four contrast media into the right and left coronary arteries of man are described. Comparisons have been made between the different media, the techniques used, and the individual coronary artery injected. We conclude that Hypaque 85 is the medium of choice for coronary arteriography, that injection into the right coronary artery is more hazardous than injection into the left, and that as far as safety is concerned there is nothing to choose between the Sones' and judkins' techniques.