目的：探讨转移性肾脏肿瘤的18F-FDG PET/CT图像特点，以期提高对该病的认识。方法：回顾性分析2013年11月—2019年8月中国科学技术大学附属第一医院经手术或穿刺病理证实的14例肾脏转移瘤。用勾画感兴趣区（ROI）法测量病灶的SUVmax，同时测量病变的大小及CT值。结果：14例患者中，共计18个病灶，其中左肾单发5例，右肾单发6例，双肾单发2例，右肾2处转移灶、左肾1处转移灶1例。结节状弥漫性高摄取病灶11个，环形高摄取病灶6个，弧形高摄取病灶1个，SUVmax（4.3~21.5），平均值11.6±5.5。等密度灶8个，低密度灶7个，高密度灶3个，CT值范围15.0~35.0 HU，平均CT值（27.9±5.2）HU，病灶最大径范围1.1~7.2 cm，最大径平均值（3.3±1.6）cm。结论：肾脏转移瘤在18F-FDG PET/CT显像有一定特点，18F-FDG PET/CT对其有很好的诊断价值。
Abstract
Objective: To investigate the 18F-FDG PET/CT features of metastatic renal tumors and in order to improve the acknowledge of the disease. Methods: From November 2013 to August 2019, 14 cases of renal metastases confirmed by surgical or puncture pathology were analyzed retrospectively. The maximum SUV of the lesions were obtained by drawing region of interest, and the size and CT value of the lesion were measured at the same time. Results: There were 18 lesions in 14 cases, including 5 cases of single lesion of left kidney, 6 cases of single lesion of right kidney, 2 cases of single lesion of double kidney, 1 case with 2 lesions in right kidney and 1 lesion in left kidney. There were 11 nodular increased uptake lesions, 6 annular high uptake lesions, and 1 arc-like high uptake focus. For all lesions, the Maximum SUVmax was 21.5, the Minimum SUVmax was 4.3, and with an average SUVmax was 11.6±5.5, there were 7 hypodensity foci, 8 isodensity foci and 3 hyperdensity foci, the boundary of all lesions was clear. The range of CT value was 15.0~35.0 HU, and the average CT value was (27.9±5.2)HU. Conclusion: Renal metastases show certain characteristics in 18F-FDG PET/CT imaging, and 18F-FDG PET/CT has a good diagnostic value for renal metastases.
关键词
肾肿瘤 /
肿瘤转移 /
正电子发射断层显像术 /
体层摄影术 /
螺旋计算机
Key words
Kidney neoplasms /
Neoplasms metastasis /
Positron-emission tomography /
Tomography, spiral computed
中图分类号：
Ｒ737.11
Ｒ817.4
Ｒ814.42
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