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在儿科^99mTc-DMSA平面成像中预设计数采集的有用性

Kohei Ohashi^1,2, Harumi Iguchi³, Yukihiro Nagatani³

¹Department of Radiology, Shiga University of Medical Science Hospital, Seta-tsukinowa-cho, Otsu City, Shiga, 520-2192, Japan. kohashi@belle.shiga-med.ac.jp.

Annals of nuclear medicine

|June 12, 2023

概括

在儿科Tc-DMSA光学扫描中,可诊断的图像质量的最低获取数量为30万. 预设计数采集 (PCA) 在此计数时提供稳定的图像质量和较预设时间采集相比更短的扫描时间.

科学领域:

核医学是一种核医学.
儿科成像学儿科成像学
放射性药物放射性药物放射性药物

背景情况:

儿科Tc-dimercaptosuccinic acid (DMSA) 扫描对于评估脏异常至关重要.
优化图像采集参数对于平衡诊断准确性和患者舒适性至关重要.
确定可诊断图像质量 (DIQ) 的最低采集数量可以提高效率.

研究的目的:

为了确定儿童99mTc-DMSA光学扫描中DIQ所需的最低获取数.
评估预设计数采集 (PCA) 对儿童平面DMSA成像的实用性.
为了比较PCA与预设时间采集 (PTA) 在图像质量和扫描持续时间方面.

主要方法:

视觉评估确定了12名儿科患者的DIQ变化系数 (CV).
在81名患者的单一回归分析中,基于CV,确定了DIQ的最低获取计数.
在23名患者中,PCA和PTA图像的获取时间,CV和吸收率进行了比较.

主要成果:

对DIQ的最低收购数量被确定为30万个.
在30万次PCA计数时,CV为26.4%±0.6%,获得时间较短 (3.1±0.7分钟),比PTA (5.0±0.0分钟).
与PTA相比,PCA在脏吸收比率中显示出稳定的图像质量,最小的变化和高一致性 (ICC=0.98) 与PTA相比.

结论:

建议在儿科Tc-DMSA光学扫描中达到最低30万个获取数,以达到DIQ.
在30万次计数时预设计数采集 (PCA) 是儿科DMSA光束学的一种有价值的方法.
PCA提供可靠和稳定的图像质量,缩短采集时间,提高效率和患者体验.

关键词:

99mTc-DMSA是什么意思 99mTc-DMSA是什么意思收购收购收购儿科儿科儿科预设的计数预设数.腎的腎的腎的腎的

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