Abstract | BACKGROUND: PURPOSE: To systematically review and perform a meta-analysis of published data regarding the diagnostic role of 68Ga-DOTATOC and 68Ga-DOTATATE PET in the diagnosis of NETs. MATERIAL AND METHODS: A comprehensive literature search of studies published through 30 April 2013 regarding 68Ga-DOTATOC and 68Ga-DOTATATE PET in the diagnosis of NETs was performed using the PubMed/MEDLINE, Embase, and Scopus databases. Pooled sensitivity and specificity of 68Ga-DOTATOC and 68Ga-DOTATATE PET in the diagnosis of NETs were calculated. The area under the receiver-operating characteristic (ROC) curve was calculated to measure the accuracy of 68Ga-DOTATOC and 68Ga-DOTATATE PET in the diagnosis of NETs. RESULTS: Ten studies comprising 416 patients with NETs were included in this meta-analysis. The pooled sensitivity of 68Ga-DOTATOC and 68Ga-DOTATATE PET in the diagnosis of NETs calculated on a per-patient-based analysis was 93% (95% confidence interval [CI] 89-96%) and 96% (95% CI 91-99%). The pooled specificity of 68Ga-DOTATOC and 68Ga-DOTATATE PET in diagnosing NETs was 85% (95% CI 74-93%) and 100% (95% CI 82-100%). The area under the ROC curve of 68Ga-DOTATOC and 68Ga-DOTATATE PET was 0.96 and 0.98, respectively, on a per-patient-based analysis. CONCLUSION: The molecular imaging agents 68Ga-DOTATOC and 68Ga-DOTATATE demonstrated high sensitivity and specificity in the diagnosis of NETs on PET scan. Although both are accurate tools in the diagnosis of NETs, 68Ga-DOTATATE PET may be more sensitive and specific than 68Ga-DOTATOC PET scan.
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Authors | Jigang Yang, Ying Kan, Benjamin H Ge, Leilei Yuan, Chunlin Li, Wenrui Zhao |
Journal | Acta radiologica (Stockholm, Sweden : 1987)
(Acta Radiol)
Vol. 55
Issue 4
Pg. 389-98
(May 2014)
ISSN: 1600-0455 [Electronic] England |
PMID | 23928010
(Publication Type: Journal Article, Meta-Analysis, Research Support, Non-U.S. Gov't)
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Chemical References |
- 68Ga-DOTANOC
- Organometallic Compounds
- gallium Ga 68 dotatate
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Topics |
- Humans
- Neuroendocrine Tumors
(diagnostic imaging)
- Organometallic Compounds
- Positron-Emission Tomography
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