Medical decision making for 5D cardiac model: Template matching technique and simulation of the fifth dimension
•Describe a medical decision-making, applied in the imagery with MRI for the cardiac imagery with 5D model.•Define the concept of the 5D cardiac model (x, y, z, time, flow Dimension).•Test the performance of the template-matching algorithm and the fifth dimension simulation.•Provide the mathematical...
Gespeichert in:
Veröffentlicht in: | Computer methods and programs in biomedicine 2020-07, Vol.191, p.105382-105382, Article 105382 |
---|---|
Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | •Describe a medical decision-making, applied in the imagery with MRI for the cardiac imagery with 5D model.•Define the concept of the 5D cardiac model (x, y, z, time, flow Dimension).•Test the performance of the template-matching algorithm and the fifth dimension simulation.•Provide the mathematical model for the 5D dimensions which contains the anatomic structure 3D of the heart, the temporal dimension and the function of the blood flow.•Provide more clues to detect the aortic stenosis and cardiac insufficiency.
The purpose of this paper is to develop a 5D cardiac model which is inspired from the 5D model for the lungs. This model depends on five variables: the anatomical structure of the 3D heart, temporal dimension and the function of blood flow as the fifth dimension. To test this hypothesis, we took the same mathematical modeling as a reference for the fifth dimension of pulmonary flow where r→ρ(t)=r→v(t)+rf→(t) wherer→v(t) is the displacement vectors with approximate magnitudes by linear functions of the tidal volume and rf→(t) is the blood flow. The scans were acquired for 10 patients,in the 404 series for a total of 18,483 images studied in three cases: healthy patient, case of heart failure and aortic stenosis. Where r→vand r→f are the unit vectors along the volume of ejection and the blood flow axes, indicating the direction of motion of the object due to heart volume ejection and blood flow variations, respectively. The quantities of α and β coefficients are determined from real-time patient image data. The alpha and beta coefficients are derived from the following dimension equations[mm / ml] [mm*ms / ml] . Since the cardiac system has two diastolic and systolic phases, we have calculated α1 and β1 for telediatolic volume and α2 and β2 for telesystolic volume throughout the cardiac cycle as a function of the location of the cuts chosen randomly.
Fifth-dimensional experiments are used to track, simulate the behavior of blood flow to detect preliminary indications for the identification of stenosis or valve leakage. The average discrepancy was tabulated as the global fraction of systolic ejection. The results shown in Fig. 3 detect a correspondence between the hunting chamber cut and the flow sequence through the orifice of aorta for this patient with suspicious of having an aortic stenosis disease and an ejection fraction about 71% with a maximum of velocity (Vmax) detected=250 (cm / ms) = 2.5 (m / 10–3 s). In this case this patient has a minor |
---|---|
ISSN: | 0169-2607 1872-7565 |
DOI: | 10.1016/j.cmpb.2020.105382 |