[Clinical application of sialography with the time-pressure curve monitored]

Sialography with the time-pressure curve monitored in 66 abnormal parotids was compared with the manual injection technique. The results are: 1. The new procedure makes sialogram image superior, avoids gland parenchymal overfilling, finds the causes of failure promptly, and eliminates the pain and other side effects. 2. Shape of the time-pressure curve and the value of the injection may act as an indicator in differential diagnosis. The curve in Sjögren's syndrome is specific and the injection pressure is obviously higher than that in normal (P < 0.01). In Sialosis the injection pressure is much lower than in normal (P < 0.01).