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British Journal of Radiology (1986) 59, 1073-1078
© 1986 British Institute of Radiology
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The British Journal of Radiology, Vol 59, Issue 707 1073-1078, Copyright © 1986 by British Institute of Radiology

ARTICLES

Value of radionuclide oesophageal transit in studies of functional dysphagia

JM Llamas-Elvira, M Martinez-Parades, R Sopena-Monforte, V Garrigues, C Cano-Terol and T Velasco-Lajo

Radionuclide oesophageal transit time was evaluated in 70 individuals, divided into three groups: normal individuals, patients with non-organic dysphagia and patients with primary oesophageal motility disorders treated with per-endoscopic forced pneumatic dilatation. In all of them the oesophageal transit time of a bolus of water with 18.5 MBq (500 microCi) of 99Tmc sulphur colloid was assessed, as was the percentage of residual activity of the bolus in the oesophagus. There was a significant difference in these parameters between the control group and the group with non-organic dysphagia, the diagnostic capacity of this test being 93% sensitivity, 100% specificity, 100% positive predictive value and 90% negative predictive value, which suggests its inclusion in diagnostic protocols of dysphagias. In patients with primary oesophageal motility disorders, a significant decrease in values of residual activity has been observed after treatment with per-endoscopic forced pneumatic dilatation.




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