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对于具有SSTR2受体表达的各种瘤的粒子疗法规划中PET/CT的价值:比较观察者间研究

Carola Lütgendorf-Caucig^1,2,3, Patricia Wieland⁴, Eugen Hug¹

¹MedAustron Ion Therapy Center, 2700 Wiener Neustadt, Austria.

|May 25, 2024

概括

使用-68 (68Ga) DOTA-PET/CT 的混合成像增强了脑膜瘤和垂体神经内分泌瘤 (PitNETs) 的瘤体积划分. 这种体静止素受体2型 (SSTR2) 图像检测推用于接受符合性辐射治疗的SSTR2表达瘤.

科学领域:

核医学是一种核医学.
放射学放射学是一门学科.
在瘤学瘤学.

背景情况:

索马托斯坦素受体2型 (SSTR2) 在各种瘤中过度表达.
使用68Ga-DOTA-PET/CT的混合成像提供了改善瘤可视化的潜力.

研究的目的:

为了评估68Ga-DOTA-PET/CT对瘤体积轮的影响,与单独的MRI相比.
评估观察者之间的一致性和对参考体积的符合性.

主要方法:

对47例患者病例的回顾性分析 (30个脑膜瘤,12个PitNET,5个SBPGL).
四名观察员在MRI上对瘤体积进行了轮,然后添加了68Ga-DOTA-PET/CT信息.
在观察者和参考体积之间计算了符合性指数.

主要成果:

97.9%的病例是DOTA明显的.
68Ga-DOTA-PET/CT在8个病例中发现了额外的瘤体积,在4个病例中对治疗至关重要.
观察者间对脑膜瘤和PitNETs与PET/CT进行了改进的一致性.
对于添加PET/CT的SBPGL没有显著的合规趋势.

结论:

68Ga-DOTA-PET/CT有助于精确的瘤识别和脑膜瘤和PitNETs中的体积划分.
该研究建议68Ga-DOTA-PET/CT用于需要符合辐射的SSTR2表达瘤.
混合成像通过揭示其他未被检测到的瘤区域来改善治疗计划.

关键词:

多塔是什么意思?多塔是什么意思?聚乙烯/聚乙烯/聚乙烯这是一个PitNET,一个PitNET.轮造型轮造型轮造型球 tympanicum 瘤球 tympanicum 瘤是一个瘤.观察者之间的可变性.脑膜瘤是指脑膜的部分.质子疗法是一种质子疗法.

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