PET 的优势在于了解全身肿瘤情况及肿瘤的代谢活性,但对于囊性病灶的诊断价值有限。许多研究表明,68Ga⁃DOTATOC/DOTATATE⁃PET/CT(SSTR⁃PET)成像比生长抑素受体闪烁显像(SRS 或 OctreoScan)具有更高的诊断精确性。 鉴别诊断 PHNET 主要与原发性肝癌、胆管细胞癌、肝细胞腺瘤、肝血管瘤、肝脏转移瘤、肝脏淋巴...
18F-FDG摄取速率一般以标准摄取值(standardized uptake value,SUV)表示,由区域18F-FDG放射性浓度除以注射总剂量并按受试者体重加以调整。结核病灶对于18F-FDG的高摄取是18F-FDG-PET用于结核成像的基础。18F-FDG高摄取与疾病活动程度有较高的相关性,但结核病灶的SUVmax(18F-FDG示踪剂给药后的最大SUV)也取决于若干其...
PET扫描的有效剂量是中度的,取决于注入的18F-FDG的活性,无论是全身还是部分扫描,成年人通常是8mSv。通过修改CT采集参数可以显著降低PET-CT扫描的辐射剂量。传统影像学检查如胸部、腹部和骨骼X射线也给带来辐射,但只有CT检查的一小部分。超声和磁共振(MR)检查不会暴...
方法回顾性分析2020年4月至2022年9月于复旦大学附属中山医院行1/10剂量(按体质量0.37 MBq/kg) 18F-FDG TB PET/CT的34例初诊肿瘤患者[男30例、女4例,年龄(64.0±1.6)岁]的临床及影像资料,将全身PET原始数据分别重建成15 min和起始2 min的PET图像(G15和G2);另外,按照病理类型匹配34例行全剂量(按体质量3.7...
enabling clinicians to assess the disease burden. 18F-FDG-PET/CT scan is particularly useful in detecting the disease in previously unknown sites, and allows the most appropriate site of biopsy to be selected. 18F-FDG-PET/CT is also ...
Moreover, since residual, recurrent or metastatic tumors can be simultaneously documented on a single whole body scan, PET may theoretically prove to be cost-effective.doi:10.1007/s00256-003-0623-3Frieda FeldmanColumbia University College of Physicians and Surgeons, New York, N.Y., USA;New York...
Bai, X., X.Wang, and H. Zhuang, Relationship Between the Elevated Muscle FDG Uptake in the Distal Upper Extremities on PET/CT Scan and Prescan Utilization of Mobile Devices in Young Patients. Clin Nucl Med, 2018. 43(3): p. 168-173. ...
enabling clinicians to assess the disease burden. 18F-FDG-PET/CT scan is particularly useful in detecting the disease in previously unknown sites, and allows the most appropriate site of biopsy to be selected. 18F-FDG-PET/CT is also very valuable in assessing early disease response to therapy,...
Value of FDG PET in papillary thyroid carcinoma with negative 131I whole-body scan. The sensitivity and specificity of FDG PET were significantly higher than those of serum thyroglobulin. In patients with negative 1311 scans, FDG PET ... JK Chung,Y So,JS Lee,... - 《Journal of Nuclear Me...
18F-FDG PET-CT scanning and diabetic patients J Martin,N Saleem - 《Nuclear Medicine Communications》 被引量: 0发表: 2014年 Do we need 18F-FDG PET/CT scan in staging and management of testicular tumors? The aim of this study was to assess the role of positron emission tomography/computed...