目的:探讨干燥综合征MR影像学表现。方法:选取2017年4月—2019年4月我院收治的干燥综合征患者240例,所有患者均进行X线检查与MR影像学检查,将病理诊断作为金标准。比较两种诊断结果与病理诊断的阳性率、影像学表现、特异度、准确度、敏...目的:探讨干燥综合征MR影像学表现。方法:选取2017年4月—2019年4月我院收治的干燥综合征患者240例,所有患者均进行X线检查与MR影像学检查,将病理诊断作为金标准。比较两种诊断结果与病理诊断的阳性率、影像学表现、特异度、准确度、敏感度。结果:MR影像学检查阳性率高于X线检查(P<0.05),且MR影像学检查符合率高于X线检查( P <0.05);MR影像学检查发现,225例患者中,有183例腮腺主导管管腔未见扩张,且边缘比较光滑,腮腺末梢导管与分支导管呈点状、球状不同程度扩张;有15例腮腺主导管边缘比较粗糙,管腔增大,呈花边状或者是羽毛状,管腔呈迂曲扩张样;有27例患者MPR重建图像发现,腮腺末梢导管、分支导管呈融合状;MR影像学检查特异度、准确度、敏感度高于X线检查( P <0.05)。 结论: 干燥综合征诊断中,MR影像学检查的结果准确可靠,可以为临床治疗提供一定的依据,应该在临床上多加广泛推广与应用。展开更多
Objective: To study the CT and MR imaging features of spongiform leukoencephalopathy after heroin vapor inhalation. Method,: The CT and MR imaging features and pathologic findings of 13 patients with heroin-induced sp...Objective: To study the CT and MR imaging features of spongiform leukoencephalopathy after heroin vapor inhalation. Method,: The CT and MR imaging features and pathologic findings of 13 patients with heroin-induced spongiform leukoencephalopathy were analyzed. Results: CT scanning and MRI of all the patients showed diffuse, symmetric lesion in the cerebellar and cerebral white matter, and the cerebellum was invariably involved in all cases. Symmetric round or butterfly-like lesions lateral to the midline of the cerebellum with clear border was the most distinct feature in CT and MRI examination. The lesions were not found in the anterior limbs of the internal capsules. CT scanning showed low-density changes while MRI TIWI imaging presented low-signal and T2WI high-signal lesions without space-occupying mass. The pathologic findings showed spongiform degeneration of the white matter in the central nervous system, but necrotic lesions were not observed. Conclusions: Spongiform leukoencephalopathy should be considered when acute. cerebellar signs are present in patients who admitted a history of heroin inhalation. The CT and MRI manifestation of this disease is typical and the diagnosis can thus be made.展开更多
文摘目的:探讨干燥综合征MR影像学表现。方法:选取2017年4月—2019年4月我院收治的干燥综合征患者240例,所有患者均进行X线检查与MR影像学检查,将病理诊断作为金标准。比较两种诊断结果与病理诊断的阳性率、影像学表现、特异度、准确度、敏感度。结果:MR影像学检查阳性率高于X线检查(P<0.05),且MR影像学检查符合率高于X线检查( P <0.05);MR影像学检查发现,225例患者中,有183例腮腺主导管管腔未见扩张,且边缘比较光滑,腮腺末梢导管与分支导管呈点状、球状不同程度扩张;有15例腮腺主导管边缘比较粗糙,管腔增大,呈花边状或者是羽毛状,管腔呈迂曲扩张样;有27例患者MPR重建图像发现,腮腺末梢导管、分支导管呈融合状;MR影像学检查特异度、准确度、敏感度高于X线检查( P <0.05)。 结论: 干燥综合征诊断中,MR影像学检查的结果准确可靠,可以为临床治疗提供一定的依据,应该在临床上多加广泛推广与应用。
文摘Objective: To study the CT and MR imaging features of spongiform leukoencephalopathy after heroin vapor inhalation. Method,: The CT and MR imaging features and pathologic findings of 13 patients with heroin-induced spongiform leukoencephalopathy were analyzed. Results: CT scanning and MRI of all the patients showed diffuse, symmetric lesion in the cerebellar and cerebral white matter, and the cerebellum was invariably involved in all cases. Symmetric round or butterfly-like lesions lateral to the midline of the cerebellum with clear border was the most distinct feature in CT and MRI examination. The lesions were not found in the anterior limbs of the internal capsules. CT scanning showed low-density changes while MRI TIWI imaging presented low-signal and T2WI high-signal lesions without space-occupying mass. The pathologic findings showed spongiform degeneration of the white matter in the central nervous system, but necrotic lesions were not observed. Conclusions: Spongiform leukoencephalopathy should be considered when acute. cerebellar signs are present in patients who admitted a history of heroin inhalation. The CT and MRI manifestation of this disease is typical and the diagnosis can thus be made.
