ABSTRACT
In the last decade there has been continued development in the diagnostic imaging techniques of computerized tomography (CT), magnetic resonance imaging (MRI) and ultrasound (US). All are now achieving speeds of data acquisition resulting in enhanced resolution of the thorax. CT can now define lung anatomy and pathological processes within the lung to the level of the secondary pulmonary lobule. Despite this, the standard portable chest radiograph remains the diagnostic fulcrum of the radiological investigation of neonatal lung disorders. Harnessing the newer techniques with the chest radiograph for an accurate diagnosis in the neonate requires an understanding not only of their appropriate clinical indications, but also the limitations that may alter their diagnostic utility. In this chapter, the basic physical principles of the techniques and their radiological interpretation according to recognized disease classifications are described.
