Abstract
Objective
To investigate the value of 68 Ga-PSMA-11 positron emission tomography/computerized tomography (PET/CT) in evaluating lacrimal and salivary glands function.
Methods
Ten patients with pSS and 18 healthy volunteers were recruited in this study. All participants underwent 68 Ga-PSMA-11 PET/CT, and the patients with pSS performed salivary gland scintigraphy the next day. The maximum standardized uptake value (SUVmax), average of the standard uptake value (SUVavg), the average CT value (CTavg), and volume (V) in the region of interest (ROI) of each lacrimal and salivary gland were analyzed in68Ga-PSMA-11 PET/CT. The uptake ratio (UR) of the bilateral parotid gland and submandibular gland was calculated in salivary gland scintigraphy (SGS). Statistical analysis was processed by the SPSS software and the MedCalc software. A p-value of < 0.05 was considered as statistically significant.
Results
Almost all the parameters of pSS were significantly lower than those of the control group (p < 0.05). The left parotid gland (PG) UR was positive correlation with left PG SUVmax (r = 0.758, p = 0.011) and left PG SUVavg (r = 0.770, p = 0.009); the right PGUR was positive correlation with right PG SUVmax (r = 0.721, p = 0.019) and right PG SUVavg (r = 0.721, p = 0.019). The SUVmax and SUVavg of both sides of acrimal and salivary glands had area under the receiver operating curve values greater than 0.5.
Conclusions
68 Ga-PSMA-11 PET/CT can simultaneously enable the visualization of lacrimal glands and salivary glands and be used to evaluate the lacrimal and salivary glands function.
Key Points • We have firstly investigated the value of 68 Ga-PSMA-11 PET/CT in evaluating lacrimal and salivary glands function in patients with pSS 68 Ga-PSMA-11 PET/CT can simultaneously allow the visualization of lacrimal glands and salivary glands. • The results of the present study imply that 68 Ga-PSMA-11 PET/CT can be used to evaluate the lacrimal and salivary glands function in patients with pSS meanwhile. |
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Data availability
Not applicable.
Code availability
SPSS software (version 16.0; SPSS Inc., Chicago, IL, USA) and the MedCalc software (ver. 10.4.8; MedCalc Software, Mariakerke, Belgium).
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J-FL, L-PQ, Q-YW, X-HG, J-ZY, and Q-CW made substantial contributions to the conception and design, acquisition of data, and analysis and interpretation of data. L-JX and M-HC drafted and revised the manuscript critically for important intellectual content and approved the final manuscript for submission and publication.
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Jian-fang Li and Lu-ping Qin equally contribute to this paper and should be considered as co-first authors.
Liang-jun Xie and Mu-hua Cheng equally contribute to this paper and should be considered as cocorresponding author.
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Li, Jf., Qin, Lp., Wu, Qy. et al. The value of 68 Ga-PSMA-11 positron emission tomography/computerized tomography in evaluating the lacrimal and salivary glands function. Clin Rheumatol 41, 1543–1550 (2022). https://doi.org/10.1007/s10067-021-06038-2
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DOI: https://doi.org/10.1007/s10067-021-06038-2