A simple mathematical method to identify optimal biplane fluoroscopic angulations for chronic total occlusion percutaneous coronary intervention using CT angiography.

ABSTRACT:

Background

The concept of three-dimensional (3D) wiring for chronic total occlusion (CTO) percutaneous coronary intervention (PCI) is now widely accepted among coronary interventionalists. The 3 axes, i.e., the 2 X-ray beams and the CTO segment, should intersect with each other at as close to a right angle as possible. However, how to specify optimal fluoroscopic angulations for a given CTO segment has not been well established.

Aims

We aimed to develop a simple and practical method to identify optimal fluoroscopic angulations for CTO PCI.

Methods

A CTO vector can be derived from slab maximum intensity projection (MIP) images of coronary computed tomography (CT) angiography. Using trigonometric functions, the inner product of vectors and the equation of a plane, we ca

SUBMITTER: Kamiunten H 

PROVIDER: S-EPMC10507606 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature