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PET Imaging Quantifying 68Ga-PSMA-11 Uptake in Metastatic Colorectal Cancer
被引:18
|作者:
Cuda, Tahleesa J.
[1
,2
]
Riddell, Andrew D.
[1
,2
]
Liu, Cheng
[1
,3
,4
]
Whitehall, Vicki L.
[1
,4
]
Borowsky, Jennifer
[1
,2
,4
]
Wyld, David K.
[1
,2
]
Burge, Matthew E.
[1
,2
]
Ahern, Elizabeth
[1
,2
,4
]
Griffin, Alison
[4
]
Lyons, Nicholas J. R.
[1
,2
]
Rose, Stephen E.
[5
]
Clark, David A.
[1
,2
]
Stevenson, Andrew R. L.
[1
,2
]
Hooper, John D.
[1
]
Puttick, Simon
[5
]
Thomas, Paul A.
[1
,2
,6
]
机构:
[1] Univ Queensland, Brisbane, Qld, Australia
[2] Metro North Hosp & Hlth Serv, Brisbane, Qld, Australia
[3] Envoi Specialist Pathologists, Herston, Qld, Australia
[4] QIMR Berghofer Med Res Inst, Herston, Qld, Australia
[5] CSIRO, Herston, Qld, Australia
[6] Herston Imaging Res Facil, Herston, Qld, Australia
关键词:
metastatic colorectal cancer;
peptide receptor radionuclide therapy;
PET;
theranostics;
D O I:
10.2967/jnumed.119.233312
中图分类号:
R8 [特种医学];
R445 [影像诊断学];
学科分类号:
1002 ;
100207 ;
1009 ;
摘要:
At diagnosis, 22% of colorectal cancer (CRC) patients have metastases, and 50% later develop metastasis. Peptide receptor radionuclide therapy (PRRT), such as Lu-177-PSMA-617, is used to treat metastatic prostate cancer. Lu-177-PSMA-617 targets prostate-specific membrane antigen (PSMA), a cell-surface protein enriched in prostate cancer and the neovasculature of other solid tumors, including CRC. We performed Ga-68-PSMA-11 PET/CT imaging of 10 patients with metastatic CRC to assess metastasis avidity. Eight patients had lesions lacking avidity, and 2 had solitary metastases exhibiting very low avidity. Despite expression of PSMA in CRC neovasculature, none of the patients exhibited tumor avidity sufficient to be considered for Lu-177-PSMA-617 PRRT.
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页码:1576 / 1579
页数:4
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