Figure 4.

The post-operative chest radiographs.

(A): The post-operative chest radiograph of the first patient. The chest radiograph showed a satisfactory position of the J-valve at one year postoperatively; (B): the preoperative chest radiograph of the second patient. The image of the mitral valve bioprosthesis can be seen on the radiograph; and (C): the post-operative chest radiograph of the second patient. The chest radiograph showed a satisfactory position of the J-valve at six months postoperatively.