The Clinician's Guide to Swallowing Fluoroscopy by Peter C. Belafsky
By Peter C. Belafsky
The Clinician’s consultant to Swallowing Fluoroscopy is a entire source for all dysphagia clinicians. This beautifully-illustrated textual content is meant for SLP, ENT, radiology, GI, and rehabilitation experts drawn to swallowing and addresses the necessity for an up to date, all-inclusive reference. themes coated contain radiation safeguard and defense, fluoroscopic oral, pharygeal, and esophageal section protocols and abnormalities, and goal measures of timing and displacement.
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Additional resources for The Clinician's Guide to Swallowing Fluoroscopy
5 Esophageal compression on videofluoroscopic esophagram caused by the diaphragmatic pinch ( black arrows) Fig. 6 Esophageal compression on esophagoscopy caused by the diaphragmatic pinch ( black arrows). 9). Barium liquid or tablet stasis in this region is frequently encountered and small transit delays in the dead zone may be considered a variant of normal. 10). 10). The LES is an approximately 4 cm high-pressure zone located between the esophagus and gastric cardia. The diaphragmatic hiatus provides the primary pres- 6 Normal Esophageal Fluoroscopy 47 Fig.
7). A normal esophageal stripping wave transmits a bolus at approximately 2 cm/s. Thus, a bolus should clear the normal 25 cm esophagus in less than 15 s. Liquid barium should proceed throughout its entire length in one smooth motion. Barium tablets may proceed more rapidly in an upright individual as transit may bypass peristalsis and the tablet may drop into the stomach by gravity alone. The esophagus may shorten up to 3 cm during bolus transit in response to the normal contraction of the longitudinal esophageal muscle.
8 Tertiary contractions ( black arrows) on fluoroscopic esophagram sure contribution to this region and is an essential fluoroscopic landmark. The hypertrophied smooth muscle of the LES contributes secondary tone. 11). A-rings represent normal fluoroscopic anatomy. 11). The esophagus in the region of the LES is attached to the diaphragm by the phrenoesophageal ligament (PEL). The attachment of the LES to the crura by the PEL 48 6 Normal Esophageal Fluoroscopy Fig. 9 Region of esophageal dead zone ( doubleheaded black arrow).