Inter‐rater reliability and validity of automated impedance manometry analysis and fluoroscopy in dysphagic patients after head and neck cancer radiotherapy

Pharyngeal automated impedance manometry (AIM) analysis is a novel non‐radiological method to analyze swallowing function based on impedance‐pressure recordings. In dysphagic head and neck cancer patients, we evaluated the reliability and validity of the AIM‐derived swallow risk index (SRI) and a novel measure of postswallow residue (iZn/Z) by comparing it against videofluoroscopy as the gold standard.

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