Titlebook: Normal and Abnormal Swallowing; Imaging in Diagnosis Bronwyn Jones (Associate Professor of Radiology, D Book 19911st edition Springer Scien

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Swallowing in Children,3) (Table 11.1). Central nervous system injuries from infection, anoxia, trauma or vascular accident, hydrocephalus, mental retardation, and cerebral palsy are the most common problems encountered in this patient population.

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Role of Radiology in Rehabilitation of Swallowing,ing is most useful for analyzing the character and degree of disability. Dynamic imaging reveals the functional status of individual elements in the swallowing chain and the utility of specific therapeutic and compensatory techniques.

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Preamble

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Anatomical and Physiological Overview,econd, or pharyngeal phase, begins when the bolus passes the faucial pillars to enter the upper pharynx, and ends when it crosses the pharyngoesophageal sphincter. The third, or esophageal phase, covers that period during which the bolus is transported from the pharynx to the stomach via the esophagus.

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Ultrasound Imaging and Swallowing,ying infants and young children. Furthermore, because of the transduction properties of sound waves, various soft tissues can be distinguished from fluids, semisolids, and solid materials. Thus, no contrast material is needed to visualize the oropharynx and, in the case of swallowing, normal foods can be used during a study.

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Integrated Approach to Cross-Sectional Imaging and Dysphagia,lesions is usually possible. Furthermore, demonstration of the precise neuroanatomical substrate of a physiological swallowing disorder requires other imaging techniques. Until the last 15 years, actual identification and delineation of pathological lesions accounting for dysphagia was difficult and relatively unusual.