摘要:目的:探討超聲與核素顯像在評價干燥綜合征(SS)腮腺受累情況中的價值和作用。方法:對65例SS病人分別進行超聲和核素顯像檢查。結果:超聲判為腮腺功能0級、I級、ⅡⅢ級、Ⅳ級的能力與核素顯像判為正常(χ2=0.075,Pgt;0.05)、輕度(χ2=0.12,Pgt;0.05)、中度(χ2=0.27,Pgt;0.05)、重度(χ2=0.097,Pgt;0.05)受損的能力一致,差異無統計學意義;核素發現單純攝取功能受損的超聲多表現為不均勻型、單純排泌功能受損的超聲多表現為結節型、攝取和排泌功能均受損的超聲多表現為纖維化型。結論:超聲檢查可作為SS患者腮腺受累情況評價的良好手段。Abstract: Objective: To quantitatively evaluate ultrasonography and radionuclide imaging in thediagnosis of parotid gland involvement in Sjogren syndrome (SS). Methods: Ultrasonography and radionuclide imaging were conducted on 65 cases with primary Sjogren syndrome. Results: There was no significant difference statistically between the ultrasonographic appearance of the parotid gland and radionuclide imaging (P gt;0. 05). Conclusion: As for diagnosis and evaluating the parotid gland of Sjogren syndrome, ultrasonography may be the useful choice.
Objective To observe the changes of visual pathway of central nervous system in patients with glaucoma.Methods Thirty-five subjects were enrolled in this prospective study. There were seven patients of chronic primary angle closure glaucoma with bilateral visual field defects, 12 patients of primary open angle glaucoma with bilateral visual field defects, and 16 normal subjects. GE Signa HD 1.5 T magnetic resonance scanners and head eight phased array were used. The mean fractional anisotropy (FA) and the mean average diffusion coefficient (DCavg) of white matter tracts in visual pathway of bilateral optic nerve, optic chiasma, bilateral optic tract，bilateral optic radiation were measured by diffusion tensor imaging, meanwhile the white matter tracts were reconstructed by fiber tracking system. The volumes of lateral geniculate body were measured by coronal proton density weighted magnetic resonance imaging.Results The differences of FA among bilateral optic nerve, optic chiasma, bilateral optic tract，bilateral optic radiation were statistically significant (F=25.985，20.626，12.262，22.399，21.708，24.994，22.774；P＜0.05). There was no difference of DCavg among bilateral optic nerve, optic chiasma, bilateral optic tract，bilateral optic radiation（F=2.097，2.178，0.530，0.983，0.608, 0.866, 1.504；P＞0.05）. The differences of volume of lateral geniculate body among three groups were statistically significant （F=18.631，17.274；P＜0.05）. Conclusion There is degeneration in visual pathway of central nervous system in patients with glaucoma.