NaF PROSTATE

<p>This is a collection of F-18 NaF positron emission tomography/computed tomography (PET/CT) images in patients with prostate cancer, with suspected or known bone involvement.</p><p>Imaging was performed on a Phillips Gemini TF PET/CT scanner based on 4x4x22mm LYSO (lutetium yttrium orthosilicate) crystal detection elements covering 18cm axial field of view (FOV) and 57cm imaging transaxial FOV. The time of flight resolution is 585ps. The scanner achieves a spatial resolution of 4.8mm at the center of the FOV. Data were reconstructed using the RAMLA iterative OSEM algorithm using 3 iterations and 33 subsets. The scanner uses CT based attenuation correction, along with randoms, normalization, dead time, and a model based scatter correction. The CT component of the scanner is a 16 slice helical CT. The CT images were generated using a low X-ray dose of 120KV, 60mAs setting.</p><p>The prescribed injected dose was 3mCi IV. Some of the patients had 2 baseline studies within 14 days of each other (with no intervening interventions). Many have follow-up PET/CT imaging performed following therapy (varied) at 6 +/-2months and 12 +/- 2 months. For scientific or other inquiries relating to this data set, please <a href="http://www.cancerimagingarchive.net/support/">contact the TCIA Helpdesk</a>.</p>

本数据集收录了前列腺癌患者疑似或已知的骨骼受累情况下的F-18 NaF正电子发射断层扫描/计算机断层扫描（PET/CT）图像。成像过程采用Philips Gemini TF PET/CT扫描仪，该扫描仪基于4x4x22mm LYSO（氧化镧钇正硅酸锂）晶体检测元件，覆盖18cm轴向视野（FOV）和57cm成像横断面视野（FOV）。飞行时间分辨率为585ps。扫描仪在视野中心实现4.8mm的空间分辨率。数据重建采用RAMLA迭代OSEM算法，迭代次数为3次，子集数量为33个。扫描仪采用基于CT的衰减校正，并结合随机校正、归一化、死时间和基于模型的散射线校正。扫描仪的CT组件为16片螺旋CT。CT图像采用低剂量X射线（120KV，60mAs）生成。规定的注射剂量为3mCi静脉注射。部分患者在相邻14天内进行了两次基线研究（无介入干预）。许多患者在治疗后（时间不一）的6±2个月和12±2个月进行了后续的PET/CT成像。如对本数据集的科学或其他相关查询，请访问<a href="http://www.cancerimagingarchive.net/support/">TCIA帮助台</a>。