超声和18F-FDG PET/CT诊断淋巴瘤浅表淋巴结病变的价值对比分析

Comparative Analysis on the Value of Ultrasound and 18F-FDG PET/CT in the Diagnosis of Superficial Lymph Node Lesions of Lymphoma

目的对比分析超声和18F-脱氧葡萄糖(18F-FDG)PET/CT诊断淋巴瘤浅表淋巴结病变的价值。方法将我院收治的39例非霍奇金淋巴瘤(NHL)患者作为研究对象,均进行超声和18F-FDGPET/CT检查,分析两种检查方法在淋巴瘤浅表淋巴结病变中的诊断价值。结果手术或淋巴结活检结果显示,39例患者共发现57个NHL淋巴结病灶。超声二维图像显示,NHL淋巴结饱满,类圆形,有低回声,淋巴结呈散在分布,部分出现融合现象,多数CDFI可探及血流信号。CT平扫显示病灶呈均匀低密度影,增强扫描后轻度均匀强化。PET/CT显示NHL淋巴结肿大,病灶FDG摄取明显增高,部分相邻肿大淋巴结呈融合现象,少数呈对称分布。18F-FDGPET/CT诊断淋巴瘤浅表淋巴结病变准确率94.74%高于超声的82.46%(P<0.05)。结论18F-FDG PET/CT对淋巴瘤浅表淋巴结病变的诊断效能优于超声。

Objective To comparatively analyze the value of ultrasound and 18Fdeoxyglucose(18F-FDG) PET/CT in the diagnosis of superficial lymph node lesions of lymphoma. Methods 39 patients with non-Hodgkin lymphoma(NHL) admitted to the hospital were enrolled in the study. Ultrasound and 18F-FDG PET/CT were performed on them. The diagnostic value of the two methods in superficial lymph node lesions of lymphoma was analyze. Results Surgery or lymph node biopsy results showed that there were 57 lymph node lesions of NHL in 39 patients. Ultrasound two-dimensional images showed that the lymph nodes of NHL were full and round-like, with low echo and scattered lymph nodes. There was fusion phenomena in some of them. Most CDFI could find blood flow signals. CT scan showed there was uniform low-density shadow in the lesions. There was mild uniform enhancement after enhanced scanning. PET/CT showed that the lymph nodes of NHL were enlarged. The FDG uptake of the lesions was significantly increased. There was fusion phenomena in some adjacent swollen lymph nodes. There was symmetrical distribution in few of them. The accuracy of 18F-FDG PET/CT in the diagnosis of superficial lymph node lesions of lymphoma was higher than that of ultrasound(94.74% vs 82.46%)(P<0.05). Conclusion The diagnostic efficiency of 18F-FDG PET/CT is superior to ultrasound for superficial lymph node lesions of lymphoma.