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Validation of a new system in quantitative coronary arteriography
1Department of Thoracic Radiology, Karolinska Hospital, Stockholm, Sweden.
Purpose:
To validate ANCOR, a new system in quantitative coronary arteriography (QCA).
Material And Methods:
The validation procedure was performed by comparing the calibration factors of catheters filled with saline solution or contrast medium, and by measuring precision-drilled lumens in a test phantom filled with contrast medium. The results were compared with a well established and validated system, CMS.
Results:
The calibration test showed that the calibration factors in the saline and contrast-medium catheters differed only a few percent when catheters with diameters of 2.0-2.67 mm were used. The phantom test showed that both systems overestimated smaller and larger diameters than these. The best results for both systems were achieved in the middle-diameter range.
Conclusion:
The ANCOR and CMS systems gave comparable results in catheter calibrations and phantom tests.