1. A method for obtaining a digital chest x-ray image of an adult patient, comprising: providing a default set of technique settings for acquisition of image data from an x-ray exposure of the adult patient's chest, the default set being selectable by an operator command and includes using a peak kilovoltage exposure setting that is below 90 kVp with beam filtration of the x-ray; Acquiring the image data of the adult patient's chest using the default set of technique settings; applying a rib contrast suppression algorithm to the acquired image data to generate the digital chest x-ray image; and Displaying or storing the digital chest x-ray image.