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Radiomics-Derived Ischemia Burden Score (R-IBS) Calculator

Radiomics-Derived Ischemia Burden Score (R-IBS): Explanation and Clinical Context This calculator estimates global ischemic burden by blending per-vessel radiomics probabilities of functional ischemia with optional CT-derived fractional flow reserve (CT-FFR). Radiomics “Rad-signature” values represent the probability that a given coronary vessel supplies an ischemic territory; these were derived from pericoronary tis

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Right Ventricular Global Longitudinal Strain (RV-GLS) Calculator

Right Ventricular Global Longitudinal Strain (RV-GLS): Explanation and Clinical Context RV-GLS quantifies right ventricular systolic deformation along the longitudinal axis from an RV-focused apical four-chamber view using 2D speckle-tracking. Two reporting conventions exist: a 6-segment global value that includes free wall and septum (RV-GLS), and a 3-segment free-wall-only value (RVFWLS). Because septal motion is i