Method of the Coronary Bed Spatial Reconstruction — a Method of Preoperative Preparation of Patients with Ischemic Heart Disease
Aim of investigation is elaboration of the coronary arterial bed three-dimensional reconstruction method according to a minimum number of angiographic projections with a use of a minimum contrast substance.
Materials and Methods. A selective coronarography was made at the ″Advantx LCV+″ roentgenosurgical apparatus (General Electric, USA) with a digital record of picture in the DICOM format and a resolution of 96 points by inch.
A preliminary mathematical model was constructed at the coronary artery phantom pictures, which is a set of connected roentgenocontrast tubes, moving away under certain angles from each other. The licensed programs EFilm Workstation 2.1, AutoCAD 2006 were used for mathematical simulation.
Results and discussion. It is established during mathematical simulation, that the «first right inclined projection» and «four-chamber one», i.e. projections, in which all the artery walls as well as the lateral branches, moving away from arterial arteries, are the optimal angiographic projections for the coronary artery three-dimensional picture forming.
A study of the heart vessel anatomical way in a process of selective coronarography combined with a use of a three-dimensional simulation method permits to reveal the patients with different variants and anomalies of coronary arteries, more precisely diagnose the coronary artery lesion at a preoperative stage.
An assessment of the coronary artery lesion three-dimensional picture favors verification of the endovascular correction method and a more precise assessment of the direct procedure results.
