Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ICD implant with leads positioned in the right atrium , and right ventricle , and through the left coronary sinus to the left ventricles . Cardiomediastinal and hilar contours are unremarkable . Linear opacities , right greater than left , are most consistent with atelectasis . No focal opacifications identified . No pleural effusion or pneumothorax present .
    OUTPUT:
    
Satisfactory position of biventricular ICD implant .