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Diagnostic sonography (ultrasonography) is an ultrasound-based diagnostic imaging technique used for visualizing internal body structures including tendons, muscles, joints, vessels and internal organs for possible pathology or lesions. The practice of examining pregnant women using ultrasound is called obstetric sonography, and is widely used.
Compared to other prominent methods of medical imaging, ultrasonography has several advantages. It provides images in real-time (rather than after an acquisition or processing delay), it is portable and can be brought to a sick patient’s bedside, it is substantially lower in cost, and it does not use harmful ionizing radiation.
Drawbacks of ultrasonography include various limits on its field of view including difficulty imaging structures behind bone, and its relative dependence on a skilled operator.
Echocardiography will give details about the functioning of the heart. Details like ‘Ejection fraction’ which gives the physician an idea about how well a patient can withstand the stress of anaesthesia and surgery can be obtained.