We included patients with biopsy-proven esophageal carcinoma who had pretreatment FDG-PET/CT at initial staging, and follow-up imaging >1 year. We excluded patients with distant hematogeneous metastases. Hilar nodes were ...
18F-FDG PET/CTrenal cell carcinomasmall bowel intussusception.A 47-year-old man with a history of metastatic non-clear cell left renal cell carcinoma, unclassified subtype, status post left radical nephrectomy 4 years prior, and treated with immunotherapy for approximately 21/2 years, presented ...
综合目前已有报道,18F-FDG诊断DTC复发或转移灶的效能差别很大,敏感性46%~100%,特异性25%~100%,诊断准确性43%~100%,这主要因为研究的异质性大,不同的纳入标准、样本数、TSH、Tg、TNM分期和病理类型等因素都会影响18F-FDG PET诊断效能[8]。 到目前为止样本量最多的为欧洲一项多中心试验,共有222例患者,18F-FDG...
正电子断层显像(PET)从代谢角度诊断肿瘤,敏感性高,PET/CT同机图像融合提供的功能和解剖信息更有利于图像解释。18F-FDG是最常用的PET肿瘤显像剂,在分化型甲状腺癌(DTC)也得到很好的应用,特别是131I全身显像阴性而甲状腺球蛋白阳性患者复发和转移病灶的寻找。本文就18F-FDG PET显像在DTC患者术前分期、探寻复发和转移灶...
displacing the trachea and esophagus toward the right side and causing complete collapse of the left lung. Posteriorly the mass was seen destroying the D2-D5 vertebrae with intraspinal extension at D2-D4 level. Metabolically active metastatic disease was seen in pleura, skull, D12 vertebra, rig...
Six regions were evaluated for the purposes of analysis: pelvic local recurrence, peritoneum, pelvic lymph nodes, para-aortic lymph nodes, distant lymph nodes, and metastatic disease. 2.4. Standard of reference In the examined patients, final diagnosis (whether there is recurrence or not) was made...
患者女,56岁,体格检查发现右乳结节,行乳腺超声及钼靶均提示乳腺恶性病变可能,拟行手术治疗,术前行 18F-脱氧葡萄糖(fluorodeoxyglucose, FDG) PET/CT显像( 图1 )。PET/CT可见右乳内上象限代谢增高结节,大小约1.6 cm×1.4 cm,最大标准摄取值(maximum standardized uptake value, SUV max)7.5( 图1A~1C );右侧...
【摘要】肝细胞肝癌(HCC)死亡率高,早期诊断率低,治疗和预后相对较差。18F-FDG PET/CT技术对HCC转移灶、早期复发病灶的检测及治疗预后等方面具有重要应用价值。本文基于18F-FDG PET/CT在HCC诊断、肝移植术、手术切除及局部消融术中的应用研究进展进行总结...
The detection of metastatic disease was the primary method by which PET changed treatment intent. PET had less of an impact on treatment changes in this study compared to others, likely because fewer patients in this study had PET-detected occult metastases. Despite the potential of PET to ...
Clinical characteristics may help prevent misclassification of reactive nodes as metastatic disease. The intensity of FDG uptake is not a good indicator for distinguishing benign from malignant disease.35 For FDG-PET/CT imaging of the thyroid, diffuse and symmetric uptake is characteristic of benign ...