重力测量按需下降喷墨沉积,用于成像可追溯活动的幻影
Sean P Jollota1, Denis E Bergeron2, R Michael Verkouteren2
1Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA; National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA.
概括
这项研究引入了一种新的校准幻影用于自发辐射,这对于向阿尔法疗法 (TAT) 研究至关重要. 开发的幻影可以进行精确的活动测量,并支持先进的数字自发射线系统.
科学领域:
- 核医学是一种核医学.
- 临床前成像学 临床前成像学
- 放射性药物的研究.
背景情况:
- 在使用α-发射放射性核素的临床前研究中,自发射显微镜非常重要.
- 准确的生物分布研究对于验证向性阿尔法疗法 (TAT) 策略至关重要.
- 需要可靠的校准和测试对象 (幻影) 来提高自动放射学精度.
研究的目的:
- 开发一个可追溯的校准幻影,用于数字自发射线.
- 为了评估使用开发的幻影的数字自动放射系统的性能.
- 讨论数字自发射线图系统的校准校正.
主要方法:
- 使用按需喷墨方法进行幻影制备.
- 确保活动可追溯到主要测量.
- 用于高分辨率成像的数字自辐射学.
主要成果:
- 成功准备了一个具有可追溯活动的自动放射学幻影.
- 通过数字自发辐射学实现了小于20μm的空间分辨率.
- 确定并讨论了系统校准所需的必要纠正.
结论:
- 开发的喷墨打印幻影是校准数字自动辐射系统的宝贵工具.
- 这个幻影支持针对性阿尔法疗法的精确生物分布研究.
- 这些发现有助于推进临床前放射性核素成像和治疗验证.
相关概念视频
01:05Gravimetry: Overview
Gravimetric analysis is a quantitative method where the analyte is isolated and weighed directly or after conversion into a substance of known composition. Gravimetric analysis can be classified as precipitation, electrogravimetry, volatilization, and particulate gravimetry, based on the method used to isolate the analyte.
In precipitation gravimetry, the analyte is converted into a precipitate and weighed. For example, the silver content in a sample can be estimated by precipitating and...
In precipitation gravimetry, the analyte is converted into a precipitate and weighed. For example, the silver content in a sample can be estimated by precipitating and...
01:03Precipitation Gravimetry
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...