MALVERN, Pa.--(BUSINESS WIRE)--Digital diagnostic images and electronic patient data are becoming ever more comprehensive and detailed. For this reason, the use of Computer-Aided Detection (CAD) tools is on the increase to help physicians in the interpretation of diagnostic information. Siemens Medical Solutions (www.usa.siemens.com/medical) has received the approval letter from the U.S. Food and Drug Administration (FDA) for its syngo® Lung CAD device, which is designed to assist radiologists in the detection of solid lung nodules in computed tomography (CT) examinations of the chest.