Automated analysis method to assess pulmonary blood flow distribution using conventional X-ray angiography.

ABSTRACT: Quantitative assessment of the right-to-left ratio of pulmonary blood flow distribution is important for determining the clinical indications for treating pulmonary arterial branch stenosis. A novel theory was recently proposed that can be used to quantitatively assess the right-to-left ratio on conventional X-ray angiography images. In the proposal, further developments were indicated, especially automated calculation. In this study, a new automated algorithm was developed. In the X-ray image, regions of interest were set in right and left lung, and time-signal intensity curves were measured. The new automated algorithm is applied to determine the optimal time window for the analysis of the time-signal intensity curve and to calculate the slope of the curve in the optimized time window. T

SUBMITTER: Sakaguchi T 

PROVIDER: S-EPMC9395340 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature