Tanabe Yuka, Ogura Ichiro
Comprehensive Dental Care, The Nippon Dental University Niigata Hospital, 1-8 Hamaura-cho, Chuo-ku, Niigata, Niigata, 951-8580, Japan.
Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, Niigata, 951-8580, Japan.
Dentomaxillofac Radiol. 2025 May 1;54(4):307-312. doi: 10.1093/dmfr/twae045.
Recently, SPECT/CT has been widely accepted as a valuable diagnostic tool in dentistry. The aim of this study was to investigate submandibular sialolithiasis with CT and SPECT/CT, especially CT values, standardized uptake values (SUVs), and salivary gland excretion in the parotid and submandibular glands.
A prospective study was performed in 13 patients with submandibular sialolithiasis who underwent CT and salivary gland SPECT/CT. The CT values and the SUVs of parotid and submandibular glands were obtained using a workstation and software. The salivary gland excretion in the parotid and submandibular glands was defined as ratio of pre- to post-stimulation on SUVs. A P-value lower than .05 was considered as statistically significant.
In the submandibular glands with sialoliths, the average CT values were significantly correlated with the maximum SUVs at ratio of pre-stimulation (r = 0.558, P<.05). The maximum SUVs at ratio of pre- to post-stimulation in the submandibular glands with and without sialoliths were 1.5 ± 1.1 and 2.1 ± 0.7, respectively (P = .026).
The salivary gland SPECT/CT SUVs can be useful in clinical practice for the quantitative management of parotid and submandibular glands in patients with submandibular sialolithiasis.
近年来，SPECT/CT已被广泛认可为牙科领域一种有价值的诊断工具。本研究旨在通过CT和SPECT/CT检查，尤其是通过CT值、标准化摄取值（SUV）以及腮腺和颌下腺的唾液腺排泄情况，对颌下腺涎石病进行研究。
对13例颌下腺涎石病患者进行了前瞻性研究，这些患者均接受了CT及唾液腺SPECT/CT检查。使用工作站和软件获取腮腺和颌下腺的CT值及SUV。腮腺和颌下腺的唾液腺排泄定义为刺激前后SUV的比值。P值低于0.05被认为具有统计学意义。
在有涎石的颌下腺中，刺激前平均CT值与最大SUV显著相关（r = 0.558，P<0.05）。有涎石和无涎石的颌下腺刺激前后SUV的最大值分别为1.5±1.1和2.1±0.7（P = 0.026）。
唾液腺SPECT/CT的SUV在临床实践中对于颌下腺涎石病患者腮腺和颌下腺的定量管理可能有用。
