Tanaka T, Ono K, Habu M, Inoue H, Tominaga K, Okabe S, Kito S, Yokota M, Fukuda J, Inenaga K, Morimoto Y
Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Japan.
Dentomaxillofac Radiol. 2007 May;36(4):218-23. doi: 10.1259/dmfr/27496576.
To evaluate the functional differences between the parotid and submandibular glands using dynamic MR sialography.
In 30 volunteers, the time-dependent changes (dynamic changes) in the maximum area of the detectable parotid and submandibular gland ducts on dynamic MR sialographic images were analysed.
Dynamic changes in the parotid gland ducts were detectable on MR sialographic images in all volunteers, but images of the submandibular gland ducts were detectable in only 23 volunteers. In addition, the dynamic changes in the submandibular gland ducts in these 23 subjects were less than those seen in the parotid gland ducts. A relationship was found between the changing ratio of parotid (Pearson r=0.448, P=0.013) or submandibular gland ducts (Pearson r=0.418, P=0.047) and the salivary flow rate during the stimulation period.
Dynamic MR sialography allows evaluation of rest and stimulated functioning and morphological evaluation of the parotid and submandibular glands. This technique appears to have many possible applications in the dental, medical and biological fields.
使用动态磁共振涎腺造影术评估腮腺和颌下腺之间的功能差异。
对30名志愿者的动态磁共振涎腺造影图像上可检测到的腮腺和颌下腺导管最大面积的时间依赖性变化（动态变化）进行分析。
所有志愿者的磁共振涎腺造影图像上均可检测到腮腺导管的动态变化，但仅23名志愿者的颌下腺导管图像可检测到。此外，这23名受试者颌下腺导管的动态变化小于腮腺导管。发现腮腺（Pearson r = 0.448，P = 0.013）或颌下腺导管（Pearson r = 0.418，P = 0.047）的变化率与刺激期唾液流速之间存在相关性。
动态磁共振涎腺造影术可评估腮腺和颌下腺的静止和刺激功能以及形态学。该技术在牙科、医学和生物学领域似乎有许多可能的应用。
