Dynamic chest radiography minimally invasive tool for hemodynamic assessment of heart failure

A less invasive method for assessing the hemodynamics of heart failure is dynamic chest radiography, says an article published in European Journal of Radiology.

A significant public health issue that frequently results in hospitalization and death is heart failure. Atypical hemodynamics, with or without decreased cardiac output, define it. Right cardiac catheterization is more invasive than dynamic chest radiography. It is a large-field-of-view, real-time image-capturing system that combines imaging of the thorax with high spatial and temporal resolution with computer-assisted tracking of moving thoracic components. Cardiopulmonary blood flow may be evaluated non-invasively using dynamic chest radiography. Data on its application for heart failure hemodynamic evaluation, however, are limited. To determine heart failure hemodynamics, Hiroaki Hiraiwa and tem used dynamic chest radiography.

Twenty patients with heart failure (median age, 67 years; 17 males) received right cardiac catheterization and dynamic chest radiography. The pictures under analysis were 16-bit images (grayscale range: 0–65,535). The average of the grayscale values of each pixel within a region of interest was used to calculate the pixel values for the right atrium, right pulmonary artery, and left ventricular apex. researchers examined the relationships between right atrial pressure, pulmonary artery wedge pressure, pulmonary artery pressure, and cardiac index, as well as the lowest, maximum, amount of change, mean, and rate of change in pixel values.