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Rapid bedside coronary angiography with a portable fluoroscopic imaging system
D Aliabadi1, M C Pica, P A McCullough
1Division of Cardiology, William Beaumont Hospital, Royal Oak, Michigan 48073-6769, USA.
Catheterization and Cardiovascular Diagnosis
|August 1, 1997
Summary
A novel portable angiographic system accurately produces high-quality coronary angiograms. This bedside system demonstrated 100% accuracy in detecting coronary artery narrowing, matching conventional fixed systems.
Area of Science:
- Cardiovascular Imaging
- Medical Device Technology
- Interventional Cardiology
Background:
- Rapid bedside coronary angiography offers significant clinical potential.
- Evaluating novel portable systems is crucial for advancing cardiac diagnostics.
- Existing fixed systems are standard but lack portability.
Purpose of the Study:
- To assess the image quality and diagnostic accuracy of a new portable angiographic system.
- To compare the portable system's performance against a conventional fixed laboratory system.
- To determine the utility of bedside coronary angiography.
Main Methods:
- Prospective comparison of a portable system (OEC Medical Systems) with a fixed system (Siemens HICOR).
- Coronary angiograms from 29 patients (70 vessels) were analyzed.
- Quantitative and qualitative assessments of stenosis, lesion location, flow, and morphology were performed.
Main Results:
- The portable system achieved 100% accuracy in detecting coronary artery narrowing (stenosis).
- Complete concordance was observed for lesion location, TIMI flow, and collaterals.
- Quantitative and qualitative stenosis severity assessments showed high correlation (R=0.95, Kappa=0.77) with the fixed system.
Conclusions:
- A portable angiographic system can generate high-quality coronary angiograms.
- The portable system is accurate for diagnosing coronary artery stenosis and morphology.
- Bedside coronary angiography using portable technology is feasible and effective.