The results of cholescintigraphy with 99mTc-HIDA in 245 children were analysed. The relationship of a latent time period with the state of the stomach-duodenum system was revealed. The specificity of this index was 82%, sensitivity 70%, accuracy 75% and pathology predictability 85%. The scintigraphic picture of a duodenobulbar reflux in the form of a RP "depot" in the ascending and upper horizontal part of the duodenum manifested itself with the specificity of 90% and predictability of pathology in 75%. Duodenogastric refluxes were revealed with the specificity of 94%, accuracy of 88% and pathology predictability of 90%. A low specificity of 34 and 43% was associated with a possibility of reflux detection in the lower horizontal part of the duodenum only.
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