[Reproducibility of the qualitative interpretation of dynamic salivary radionuclide scans with excretory stimulation].
OBJECTIVE
To evaluate intraobserver and interobserver agreement in the qualitative interpretation of dynamic salivary radionuclide scans to detect salivary disease, and the agreement between interpretation of dynamic and static image compositions.


METHODS
Two observers (A, B) interpreted 110 dynamic salivary radionuclide scans with excretory stimulation based on dynamic image composition. Both again interpreted every studies: A based on dynamic image composition and B on static image composition. Kappa statistics were used to determine the degree of intraobserver and interobserver agreement.


RESULTS
Considering all the studies, the dynamic composition showed an intraobserver agreement of 0.76 and interobserver agreements of 0.58 and 0.61. In patients with clinical sicca syndrome, agreements were 0.60, 0.52 and 0.62, respectively. For all the cases, the agreements between dynamic and static composition was 0.62 (intraobserver), and 0.42 and 0.43 (interobserver). For patients with clinical sicca syndrome these agreements were 0.63 (intraobserver), and 0.36 and 0.51 (interobserver).


CONCLUSIONS
Intraobserver and interobserver agreement in the qualitative interpretation of dynamic salivary radionuclide scan with excretory stimulation are moderate and notable-moderate overall and in patients with clinical sicca syndrome. These agreements are greater than between dynamic and static image composition.
Cortés-Blanco
A
A
Hospital Miguel Servet, Zaragoza, España. anabelcortes@iname.com
Martínez-Lázaro
R
R
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011877:Radionuclide Imaging; D015203:Reproducibility of Results; D012463:Saliva / Q000000981:diagnostic imaging* / Q000378:metabolism; D015494:Salivary Gland Calculi / Q000000981:diagnostic imaging / Q000378:metabolism; D012466:Salivary Gland Diseases / Q000000981:diagnostic imaging*; D012793:Sialadenitis / Q000000981:diagnostic imaging / Q000378:metabolism; D014987:Xerostomia / Q000000981:diagnostic imaging / Q000378:metabolism