Nomogram to Predict Left Atrial Thrombus or Spontaneous Echo Contrast in Patients With Non-valvular Atrial Fibrillation

Figures

• 

  Figure 1. Nomogram for peri-procedural estimation of LAT/SEC risk in NVAF patients. HTN, Hypertension; LAD, left atrium diameter; LVEF, left ventricular ejection fraction; NPAF, Non-paroxysmal AF.

• 

  Figure 2. (A,B) Receiver operating characteristic curve for models in predicting LAT/SEC in the training cohort and validation cohort. (C) Calibration curves for the nomogram in the training cohort. The dotted line represents the entire cohort (n = 1,239), and the solid line is the result after bias-correction by bootstrapping (1,000 repetitions), indicating nomogram performance (boot mean absolute error = 0.027). (D) Calibration curves for the nomogram in the validation cohort. The dotted line represents the entire cohort (n = 574), and the solid line is the result after bias-correction by bootstrapping (1,000 repetitions), indicating nomogram performance (boot mean absolute error = 0.020). (E,F) Decision curve analysis for the nomogram in the training cohort and validation cohort. The decision curve of the nomogram is composed of an X-axis which represents continuum of potential thresholds for LAT/SEC risk and a Y-axis which represents the net benefit which is obtained by dividing the net true positives by the sample size. The “All” curve shows the net benefit if all patients subject to transesophageal echocardiography (TEE). The “None” line shows the net benefit if no patient subject to…