TABLE 1. Summary of the displacement of the velopharyngeal structures before and during diagnostic therapy (N=10).

Maximal Displacement	Rating Before Therapy	Rating During Therapy	Observation During Diagnostic Therapy	Before vs. During
Velar	Mean: 0.6 SD: 0.3	Mean: 0.7 SD: 0.3	60% remained the same, 40% increased displacement	Wilcoxon Matched Pairs p=0.067898
Right Lateral Pharyngeal Wall	0%-25%**	26%-50%**	30% remained the same, 70% increased displacement	Wilcoxon Matched Pairs p=0.017966*
Left Lateral Pharyngeal Wall	0%-25%**	26%-50%**	20% remained the same, 80% increased displacement	Wilcoxon Matched Pairs p=0.011724*
Posterior Pharyngeal Wall	Mean: 0.3 SD: 0.3	Mean: 0.3 SD: 0.3	70% remained the same, 10% increased displacement, 20% could not be seen	Wilcoxon Matched Pairs p=1.0

^*Significant difference between displacement before and during diagnostic therapy

^**Displacement rated in quarters (0%-25%, 26%-50%, 51%-75%, 76%-100%) instead the scale 0.0 to 1.0

SD= Standard Deviation