By Olle Ekberg MD, Göran Nylander MD (auth.), Olle Ekberg MD, PhD (eds.)
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Extra info for Radiology of the Pharynx and the Esophagus
There is a ring on her index ﬁnger. The location of the tablet is indicated with arrows. Further evaluation revealed decreased peristaltic contrast pressure in this area but there was no morphologic abnormality c O. Ekberg 26 ﬁculties the radiologist plays an important role. He must choose the correct imaging technique which will most expediently and accurately answer the clinical questions. This is not always barium swallow. For instance in patients with the combination/ constellation of neck pain and dysphagia MRI can reveal soft tissue disease, such as retropharyngitis (Ekberg and Sjöberg 1995).
In the PES, dysfunction and structural abnormalities may co-exist. In the esophagus, structural abnormalities predominate. 1 The Oral Stage Leaking of barium either anteriorly through the lips, laterally into the buccal pouches or posteriorly into the pharynx is abnormal. Abnormal is also an overly large ingestion in a patient with impaired pharyngeal function and misdirected swallowing. This may 41 indicate impairment of bolus sizing. Impaired lingual movement or jerky uncoordinated movements of the tongue during the preparatory phase of swallowing is also abnormal.
A 1-minute ﬂuoroscopy is roughly equivalent to one exposure. This is however relative and depends on the situation. In a study by Chan et al. e. 34–3 μSv (Chan et al. 2002). This should then theoretically permit an examiner to perform 2583 examinations/year given the annual effective dose limit of 20 mSv. It should be noted that since lead aprons are always worn, the additional protection they provide further reduces the scattered radiation dose to negligible levels. If you have access to digital radiology, you may also have access to pulsed ﬂuoroscopy.
Radiology of the Pharynx and the Esophagus by Olle Ekberg MD, Göran Nylander MD (auth.), Olle Ekberg MD, PhD (eds.)