Center for Voice and Swallowing, Department Otolaryngology/HNS, University of California, 2521 Stockton Blvd., Ste. 7200, Davis, Sacramento, CA 95817, USA.
Dysphagia. 2011 Mar;26(1):13-7. doi: 10.1007/s00455-009-9258-4. Epub 2009 Oct 24.
The pharyngeal constriction ratio (PCR), derived directly from videofluoroscopy without the need for manometry, requires validation as a surrogate for pharyngeal strength. A correlation of -0.70 was previously identified between PCR and pharyngeal clearing pressures (PP) on separate fluoroscopic and manometric studies. As PP increases, PCR decreases. The objective of the current study was to evaluate the correlation between PCR and PP in 25 patients undergoing simultaneous fluoroscopy and pharyngeal manometry. The effect of the manometric catheter on PCR was also investigated. The correlation between the PCR and averaged pharyngeal clearing pressures was -0.72 (p<0.001). All patients with a PCR>0.25 had a P <60 mmHg. PCR did not differ significantly as a consequence of the manometric catheter. Results suggest the utility of an objective fluoroscopic measure in assessing pharyngeal strength when manometry may not be available or possible.
咽缩比率（PCR）可直接通过视频透视获得，而无需测压法，需要验证其是否可作为咽壁力量的替代指标。先前的研究表明，PCR 与单独的透视和测压研究中的咽清除压（PP）之间存在 -0.70 的相关性。随着 PP 的增加，PCR 降低。本研究的目的是评估 25 名同时进行透视和咽测压的患者中 PCR 与 PP 之间的相关性。还研究了测压导管对 PCR 的影响。PCR 与平均咽清除压之间的相关性为-0.72（p<0.001）。所有 PCR>0.25 的患者的 P <60mmHg。由于测压导管的原因，PCR 没有显著差异。结果表明，当无法或不可能进行测压法时，客观透视测量可用于评估咽壁力量。
