先前发表的研究表明,DOTATE - PET /MRI用于颅内脑膜瘤患者术后靶标划定可导致计划靶标体积(PTV)减少和器官危险剂量降低。然而,目前还没有针对放射治疗(RT)前后的SSTR-2靶向PET的前瞻性评估。先前有一项回顾性研究报道,一些患者在[6...
第一和第三行均为T1加权MRI后对比,而第二和第四行为注册DOTATAE-PET CT,与正上方的MRI配对;A和B,一名70岁女性,在WHO 2级海绵窦脑膜瘤切除术后,表现为蝶骨同侧骨内疾病越过岩斜软骨联合延伸至颞骨岩骨尾到颈动脉岩部水平段(PET...
第一和第三行均为T1加权MRI后对比,而第二和第四行为注册DOTATAE-PET CT,与正上方的MRI配对;A和B,一名70岁女性,在WHO 2级海绵窦脑膜瘤切除术后,表现为蝶骨同侧骨内疾病越过岩斜软骨联合延伸至颞骨岩骨尾到颈动脉岩部水平段(PET后1个月拍摄的MR);C和D, 53岁男性,WHO 2级骨内病变,颞骨鳞片邻近部位,既往...
Functional imaging of neuroendocrine tumours with combined PET/CT using 68-Ga-DOTATE and 18-F-FDG The aim was to assess the relevant distribution of the novel PET tracer (68)Ga-DOTATATE in neuroendocrine tumors (NETs) with combined positron emission tom... I Kayani,JB Bomanji,A Groves,.....
Ga-68-FAPI (fibroblast activation protein-specific inhibitor) PET/CT was performed in a 56-year-old man with multiple liver masses, which were confirmed grade 2 well-differentiated neuroendocrine tumors with liver Tru-Cut biopsy. With Ga-68-DOTATE PET/CT, primary tumor in the pancreas, ...
[68Ga]Ga-DOTA-TATE PET-CT imaging of pigs with lung inflammation First, the pigs were placed on the scanner bed on supine position. An attenuation CT scan (100 kV, 80–400 mA, noise index 10, rotation 0.5’’, full spiral, slice thickness 3.75 mm, pitch 0.98:1, recon diameter 50 ...
Experiences with PET/CT or PET/MRI 68Ga-DOTATOC, 68Ga-DOTATATE, and 68Ga-DOTANOC with CyberKnife radiosurgery have been reported in literature, but not with Gamma Knife ICON, in single fraction or hypofractionated treatments. We present a case series of 20 patients affected by meningiomas, on...
关键点 PET/CT可导致假阳性和假阴性结果;必须了解头颈部FDG摄取的正常变异。深入了解外科手术过程和预期的影像学改变是避免误诊的关键。虽然18F-FDG,可视化葡萄糖代谢,有助于头颈部癌症的分期和治疗反应评估,最近开发的宠物放射示踪剂针对特定的表面标记物,如68Ga-dotate生长抑素受体阳性肿瘤包括副神经节瘤、脑膜瘤和...
Cardiac sarcoidosis (CS) is a potentially fatal condition lacking a single test with acceptable diagnostic accuracy. 18F-FDG PET/CT has emerged as a promising imaging modality, but is challenged by physiological myocardial glucose uptake. An alternative tracer, 68Ga-DOTANOC, binds to somatostatin re...
几项研究表明,68Ga - DOTA共轭PET配体与结构CT和MR成像共同注册,为脑膜瘤范围和远处或残余脑膜瘤区域的检测提供了有价值的附加信息,用于规划后续治疗,包括放疗。此外,研究表明,没有结合SSTR - PET配体的区域可以被排除在辐射野和重要结构(如视神经、视交叉或垂体)之外...