Imaging Vascular Anomalies of the Pediatric Chest: Rings, Slings, and Other Things
This chapter begins with a discussion of the techniques used in computed tomography (CT) and magnetic resonance imaging (MRI) to evaluate suspected vascular anomalies of the chest in children. Selected examples of vascular anomalies of the great vessels and more peripheral lung vessels are then described. Examples of lesions that are less commonly described have been chosen. Technique is emphasized in order to address some of the challenges in obtaining diagnostic-quality imaging of the pediatric thoracic vasculature. In most cases, contrast material can only be administered a single time, so there is only one chance to get the images. Young children cannot cooperate with breathing instructions or even lie still. Respiratory motion is greater in children than in adults, and a respiratory rate of 60 is normal for an infant. Good quality images can easily be compared with numerous examples available in textbooks and through the World Wide Web, or the images can be shared with other imagers to arrive at the correct diagnosis. Poor image quality due to motion, poor contrast bolus, artifacts, or limitations of technique will limit all attempts at interpretation.
KeywordsAortic Arch Pulmonary Vein Hereditary Hemorrhagic Telangiectasia Vascular Anomaly Double Aortic Arch
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