The present invention relates to a stereoscopic imaging apparatus (2). The apparatus (2) comprises a real time ultrasound imaging device (14, 20, 22) for generating a real time 3D model of a patient's heart (4), combining the real time 3D model with a static 3D model of the region surrounding the heart (4) previously stored in memory (24), and generating stereoscopic image data of the combined real time and static 3D model. The apparatus also comprises a display (30) for simultaneously displaying the real time stereoscopic image of the heart (4) and a static stereoscopic image of the region surrounding the heart (4). By enabling a real time stereoscopic image of the heart (4) and a static stereoscopic image of the region surrounding the heart to be simultaneously displayed on the display (30), this improves the user's depth perception in viewing the real time image.