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用于检测 PSMA 阳性转移性结直肠癌的放射性药物:18F-BF3-Cy3-ACUPA 和 68Ga-PSMA PET/MRI 的配对比较。

Radiopharmaceutical for detecting PSMA - positive metastatic colon cancer: Matched-pair comparison of 18F-BF3-Cy3-ACUPA and 68Ga-PSMA PET/MRI.

机构信息

Departament of Radiology, Memorial Sloan Kettering Cancer Center, New York, United States.

Department of Urology, Cerrahpasa Medical Faculty, Istanbul, Turkey.

出版信息

Nucl Med Rev Cent East Eur. 2022;25(2):129-130. doi: 10.5603/NMR.a2022.0027. Epub 2022 Jun 14.

Abstract

Prostate-specific membrane antigen (PSMA) - based radiopharmaceuticals are promising for the evaluation of PSMA-positive non-prostate cancers. In this case study, 18F-BF3-Cy3-ACUPA and 68Ga-PSMA positron emission tomography/magnetic resonance imaging (PET/MRI) were compared in a patient with metastatic colon cancer. Both 18F-BF3-Cy3-ACUPA and 68Ga-PSMA PET/MRI showed biopsy-proven metastatic left external iliac adenopathy, highlighting the feasibility of PSMA uptake in PET/MRI of metastatic nodal disease from colon cancer. Along with imaging evaluation, PSMA-based radiopharmaceuticals may also be used as a surrogate imaging tracer for potential theranostic applications using alpha or beta emitters in the context of PSMA-directed radiopharmaceutical therapy in advanced and progressive colorectal cancer.

摘要

前列腺特异性膜抗原(PSMA)为基础的放射性药物在评估 PSMA 阳性非前列腺癌方面具有广阔的应用前景。在本病例研究中,比较了 18F-BF3-Cy3-ACUPA 和 68Ga-PSMA 正电子发射断层扫描/磁共振成像(PET/MRI)在转移性结肠癌患者中的应用。18F-BF3-Cy3-ACUPA 和 68Ga-PSMA PET/MRI 均显示活检证实的转移性左侧髂外淋巴结病变,突出了 PSMA 在转移性结直肠癌淋巴结疾病 PET/MRI 中的摄取的可行性。除了影像学评估外,PSMA 放射性药物还可以作为一种替代成像示踪剂,用于潜在的治疗应用,包括使用α或β发射体,这在 PSMA 导向的放射性药物治疗晚期和进展性结直肠癌中具有重要意义。

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