Related Experiment Videos
Comparison of digital with conventional ventriculography for quantitative right ventricular studies
P E Lange1, W Radtke, K E Fellows
1Department of Pediatric Cardiology and Bioengineering, University of Kiel, FRG.
Insights
Quantitative central venous digital angiocardiography accurately assesses right ventricular size and function in children. This method uses less contrast medium and reduces arrhythmias compared to conventional techniques.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Medical Imaging
Background:
- Conventional angiocardiography is a standard diagnostic tool for congenital heart defects.
- Assessing right ventricular size and function is crucial for managing pediatric cardiac conditions.
- Minimizing contrast medium and reducing procedural complications are key goals in pediatric cardiac catheterization.
Purpose of the Study:
- To evaluate the feasibility and accuracy of quantitative central venous digital angiocardiography for assessing right ventricular parameters.
- To compare measurements of right ventricular spatial orientation, size, and shape obtained via digital angiocardiography with those from conventional methods.
Main Methods:
- Quantitative central venous digital angiocardiography was performed in 21 children with congenital heart defects during routine cardiac catheterization.
- Measurements of end-diastolic volume, end-systolic volume, and ejection fraction were compared between digital and conventional angiocardiography.
- Incidence of premature ventricular contractions and the amount of contrast medium used were also compared.
Main Results:
- Excellent correlations were observed for end-diastolic (r=0.986) and end-systolic volumes (r=0.969) between the two methods.
- Ejection fractions showed similarly close correlations.
- Premature ventricular contractions were absent with digital angiocardiography, unlike conventional methods, and contrast medium usage was reduced by 36%.
Conclusions:
- Central venous digital angiocardiography is a feasible and accurate method for assessing right ventricular size and function in children.
- This technique offers advantages over conventional angiocardiography, including reduced contrast administration and fewer arrhythmias.
- Digital angiocardiography represents a valuable advancement in the diagnostic imaging of pediatric congenital heart disease.
Abstract:
To assess the feasibility of quantitative central venous digital angiocardiography, right ventricular spatial orientation, size, and shape were compared with measurements based on conventional angiocardiography, both obtained during routine cardiac catheterization in 21 children with various congenital heart defects. Without systematic error, correlations for end-diastolic and end-systolic volumes were excellent, at r = 0.986 and 0.969, respectively. Ejection fractions were similarly closely correlated. Premature ventricular contractions were common in conventional angiocardiography and absent in digital and angiocardiography. The amount of contrast medium was 36% of that used for conventional angiocardiography. Digital angiocardiography using reduced amounts of contrast medium given through a central venous catheter allows accurate assessment of right ventricular size and function.