Publications by authors named "Anish R Koka"
Rationale And Objectives: Left atrial volume (LAV) measurement by conventional two-dimensional (2D) transthoracic echocardiography (TTE) may be limited by the geometric model, by suboptimal definition of left atrial endocardium, or by chamber foreshortening. Three-dimensional (3D) TTE is posited to eliminate chamber foreshortening, and LAV measurement by 3D TTE should be more reflective of true LAV. The aim of this study was to compare conventional 2D TTE and newer 3D TTE for measurements of LAV to multidetector computed tomographic (MDCT) measurements using automated chamber reconstruction (ACR).
View Article and Find Full Text PDFObjective: High-resolution 64-MDCT images of the beating heart can be used for measurement of left atrial volume with 3D chamber reconstruction. The purpose of this study was to correlate measurements of left atrial volume obtained with clinical transthoracic echocardiography (TTE) and measurements obtained with 64-MDCT 3D reconstructions of the left atrium.
Materials And Methods: Patients who underwent TTE and MDCT within 3 days were identified.
Rationale And Objectives: The aim of this study was to apply a decision analytic model for the evaluation of coronary artery disease (CAD) to define the optimal utilization of coronary computed tomographic angiography (cCTA) and stress testing.
Materials And Methods: The model tested in this study assumes that CAD is evaluated with a stress test and/or cCTA and that a patient with positive evaluation results undergoes cardiac catheterization. On the basis of values of sensitivity, specificity, and radiation dose from the published literature and test costs from the Medicare fee schedule, a decision tree model was constructed as a function of disease prevalence.