[Digital function angiography. A method of measuring arterial blood flow].

Area of Science:

• Medical Imaging
• Biomedical Engineering
• Computational Science

Background:

• Conventional angiograms offer qualitative insights into vascular structures.
• Quantitative analysis of blood flow dynamics is crucial for accurate diagnosis.
• Digital image processing presents opportunities for enhanced angiogram evaluation.

Purpose of the Study:

• To explore the application of digital image processing for quantitative angiogram analysis.
• To develop a method for extracting parametric data from digitized angiogram series.
• To assess the potential of flow velocity and volume flow measurements in improving angiogram interpretation.

Main Methods:

• Utilized digital image processing for parameter extraction from angiogram image series.
• Performed parametric analysis based on mathematical calculations of contrast medium density-time-curves for each pixel.
• Calculated flow measurements from time-parameter data and vessel segmentation.

Main Results:

• Successfully extracted quantitative parameters from digital angiograms.
• Demonstrated the calculation of flow velocity and volume flow using image processing techniques.
• Showcased the ability to track contrast medium propagation over time.

Conclusions:

• Digital image processing is effective for quantitative evaluation of angiograms.
• Parametric analysis of contrast medium dynamics provides valuable flow data.
• This approach offers supplementary quantitative information for conventional angiogram interpretation.