A technique for intra-procedural blood velocity quantitation using time-resolved 2D digital subtraction angiography.

ABSTRACT:

Background

2D digital subtraction angiography (DSA) is utilized qualitatively to assess blood velocity changes that occur during arterial interventions. Quantitative angiographic metrics, such as blood velocity, could be used to standardize endpoints during angiographic interventions.

Purpose

To assess the accuracy and precision of a quantitative 2D DSA (qDSA) technique and to determine its feasibility for in vivo measurements of blood velocity.

Materials and methods

A quantitative DSA technique was developed to calculate intra-procedural blood velocity. In vitro validation was performed by comparing velocities from the qDSA method and an ultrasonic flow probe in a bifurcation phantom. Parameters of interest included baseline flow rate, contrast injection rate, projec

SUBMITTER: Hoffman C 

PROVIDER: S-EPMC7790988 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature