Clinical library

Every tool, one focused workspace.

1,329 calculators and references across 60 specialties, with formula confidence shown up front.

✓

10results

Interactive worksheet

CMR Late Enhancement Pericarditis Index (LEPI) Calculator

CMR Late Enhancement Pericarditis Index (LEPI): Explanation and Clinical Context The CMR LEPI is a quantitative tool developed to assess the severity and risk stratification in patients with acute or chronic pericarditis using cardiac magnetic resonance imaging. It integrates three key parameters: pericardial late gadolinium enhancement (LGE) score, pericardial thickness measured on imaging, and pericardial edema det

Interactive worksheet

Constriction Probability Score (Echo-based) Calculator

Constriction Probability Score (Echo-based): Explanation and Clinical Context The Constriction Probability Score (Echo-based) is a diagnostic tool designed to assess the likelihood of constrictive pericarditis using echocardiographic parameters. This score incorporates key measurements such as Left Atrial Volume Index (LAVI), Right Atrial Volume Index (RAVI), Tricuspid Annular Plane Systolic Excursion (TAPSE), and Tr

Interactive worksheet

CT Pericardial Thickness Index (PTI) Calculator

CT Pericardial Thickness Index (PTI): Explanation and Clinical Context The CT Pericardial Thickness Index (PTI) is a standardized measure of pericardial thickness adjusted for body surface area (BSA), providing a more individualized assessment of pericardial remodeling or constriction. Pericardial thickening >4 mm/m² is considered abnormal and may indicate constrictive pericarditis or risk for hemodynamic compromise.

Interactive worksheet

Effusion Recurrence Index (ERI) Calculator

Effusion Recurrence Index (ERI): rationale, use and limitations The Effusion Recurrence Index (ERI) presented here is a practical, literature-derived point score intended to estimate the risk that a clinically significant pericardial (or pleural) effusion will recur after index drainage or medical management. In multiple series, the presence of malignancy and positive cytology are the most consistent predictors of ea

Interactive worksheet

ESC 2015 Pericarditis Risk Factors Calculator

ESC 2015 Pericarditis Risk Factors: Explanation and Clinical Context The 2015 ESC guideline identifies several predictors associated with an increased risk of complications and poorer prognosis in patients presenting with acute pericarditis. Major risk features include: high fever (>38 °C), a subacute clinical course (insidious or prolonged symptom onset), evidence of a large pericardial effusion (diastolic echo-free

Interactive worksheet

Inflammatory Activity Score (Pericarditis Biomarkers) Calculator

Inflammatory Activity Score (Pericarditis Biomarkers): Explanation and Clinical Context The Inflammatory Activity Score is a simplified clinical tool designed to quantify the degree of systemic inflammation in patients with acute pericarditis using standard laboratory biomarkers, including C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and white blood cell count (WBC). This score assigns one point fo

Interactive worksheet

MRI Pericardial Inflammation Index (PII) Calculator

MRI Pericardial Inflammation Index (PII): Comprehensive Explanation and Clinical Context The MRI Pericardial Inflammation Index (PII) is a composite score derived from key MRI parameters: pericardial thickness, T2-STIR signal intensity, and LGE intensity ratio. This index aids in assessing the extent of pericardial inflammation, which is crucial for diagnosing conditions like acute pericarditis and evaluating the ris

Interactive worksheet

Pericardial Effusion Tamponade Index (PETI) Calculator

Pericardial Effusion Tamponade Index (PETI): Explanation and Clinical Context The Pericardial Effusion Tamponade Index (PETI) is a quantitative echocardiographic score designed to assess the hemodynamic significance of pericardial effusion and predict the risk of cardiac tamponade. It combines the durations of right atrial and right ventricular collapse observed during echocardiography with the maximum width of the p

Interactive worksheet

Pericardiectomy Surgical Risk Model Calculator

Pericardiectomy Surgical Risk Model: Explanation and Clinical Context Pericardiectomy is a surgical procedure performed to remove the pericardium, often indicated for conditions such as constrictive pericarditis. The risk associated with this surgery can be influenced by various factors including patient age, underlying etiology, functional status, and the necessity for cardiopulmonary bypass. The model developed by

Interactive worksheet

Steroid-Dependence Risk Score (Chronic or Recurrent Pericarditis)

Steroid-Dependence Risk Score for (Recurrent) Pericarditis: Explanation and Clinical Context This scoring tool is derived from a prognostic model of patients with recurrent pericarditis that included steroid-dependence among its key variables (age, sex, number of recurrences, etiology, heart rate, pericardial imaging, LVEF, colchicine use, steroid use, DMARD use). The intention is to stratify patients by risk of poor