1. A method for interactive adjustment of a 3D ultrasound image of an object, including the following steps: acquiring a loop of 3D image data of the object, and providing a 3D image of the object on a display for user viewing; activating a crop mode via a user interface in response to a user input, wherein a cropping plane is generated and oriented in relation to the orientation of the image of the object in image space, and the cropping plane is displayed along with the 3D image, and wherein the user may manipulate the user interface to control the orientation of the cropping plane in the image space with respect to the orientation of the image.