Fig 1.
Regions of interest (ROIs) in SPECT imaging of salivary gland (SSG).
The images of bilateral parotid and submandibular glands at 14min postinjection of radiotracer in the left panel (a). The time-activity curves for right parotid gland (red), left parotid gland (green), right submandibular gland (yellow) and left submandibular gland (blue) in the right panel (b).
Table 1.
The new point-scoring diagnostic system for Sjögren's syndrome: domains, categories and point scores.
Table 2.
Criteria for Sjögren's syndrome.
Table 3.
Comparison of quantitative parameters from SPECT imaging of salivary gland between group A and group B.
Fig 2.
Receiver operating characteristic curve of the new diagnostic system for Sjögren's syndrome (SS).
The curve plots the relationship between sensitivity and 1-specificity for different cutoff levels. When 7.0 for the diagnostic scores of suspected SS patients was used as the cut-off point, the maximum value of Youden’s index was achieved as 0.836.
Table 4.
The performance evaluation of classification criteria in 213 patients with suspicious SS.
Table 5.
The performance evaluation of the three criteria in Sjögren's syndrome after excluding the patients lacking of the related data.
Fig 3.
The number of patients with definitive diagnostic results consistent with the clinical diagnostic results.
Area-proportional Venn diagrams visualizing interrelationships among the new point-scoring diagnostic system, the criteria proposed by the American-European Consensus Group (AECG) and the criteria proposed by the American College of Rheumatology (ACR).