为资源有限的设置优化PSMA光束学 - - 一个回顾性比较研究
Olumayowa U Kolade1,2, Anita Brink3,4, Akinwale O Ayeni3,5,6
1Division of Nuclear Medicine, Department of Radiation Medicine, University of Cape Town, Cape Town, South Africa. mayowakolade@gmail.com.
概括
[99mTc]使用平面或SPECT成像的Tc-PSMA光学扫描 (PS) 足以在资源有限的环境中确定前列腺癌 (PCa) 的阶段. 限制视野可以优化成像时间,而不会错过转移性病变.
科学领域:
- 核医学是一种核医学.
- 在瘤学瘤学.
- 医学成像医学成像
背景情况:
- 前列腺癌 (PCa) 管理依赖于敏感的成像,但在发展中国家,PET/CT往往无法获得.
- 标有Technetium-99m标记的PSMA光束学 (PS) 提供了使用玛相机的更容易获得的替代方案.
- 资源限制可能需要简化PS协议,例如有限视野 (FOV) 或省略SPECT/CT.
研究的目的:
- 评估简化[99mTc]Tc-PSMA光学扫描 (PS) 协议对于前列腺癌 (PCa) 检测和分期的充分性.
- 为了确定在资源有限的环境中,只有平面或只有有限的FOV的SPECT成像是否足够.
主要方法:
- 从95名经组织学确认的PCa患者的PS扫描的回顾性审查.
- 在平面,SPECT和SPECT/CT成像中对原发性瘤和转移的检测率的比较.
- 对转移检测和TNM分期的跨模式协议的评估.
- 对有限的FOV对成像检测结果的影响的评估.
主要成果:
- 在所有可评估病例中,SPECT/CT检测到病态前列腺吸收;SPECT显示90.3%,平面图像显示15.1%.
- 在11.7%的患者中,在SPECT/CT检测中发现了精液囊泡的参与,但在平面检测或单独的SPECT检测中没有发现.
- 在结节转移 (κ=0.410.61) 和骨转移 (κ=0.730.77) 方面,一致性为中度至良好.
- TNM分期协议很好 (κ=0.700.88),并且没有错过任何转移性病变,FOV有限.
结论:
- 虽然SPECT/CT推用于[99mTc]Tc-PSMA扫描 (PS),但平面和SPECT成像对于在资源有限的环境中对大多数前列腺癌 (PCa) 患者进行分期足够.
- 简化的PS协议,包括有限的FOV,可以优化成像时间,而不会影响分阶段的准确性.
- PS的可访问性使其成为PCa管理的宝贵工具,在先进的成像无法使用的情况下.
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