The Correlation Between [68Ga]DOTATATE PET/CT and Cell Proliferation in Patients With GEP-NENs View Full Text


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Article Info

DATE

2019-02-22

AUTHORS

Jiangyuan Yu, Nan Li, Jie Li, Ming Lu, Jeffrey P. Leal, Huangying Tan, Hua Su, Yang Fan, Yan Zhang, Wei Zhao, Hua Zhu, Martin G. Pomper, Yun Zhou, Zhi Yang

ABSTRACT

PurposeObjectives of the study are to analyze the correlation between [68Ga]DOTATATE positron emission tomography (PET)/X-ray computed tomography (CT) measurements and various biological characteristics of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs), and to determine optimal cutoff value of SUVmax (standard uptake value) to differentiate neuroendocrine tumors (NETs) and neuroendocrine cancers (NECs).ProceduresOf the GEP-NEN cases (73 males, 53 females; age 18–77 years) with pathologically proven primary and/or metastatic lesions, 126 were studied. All of the short axes of lesions were larger than 0.5 cm in order to avoid the partial volume effect. Patients fasted for 6 h before the PET/CT scans. The dose of [68Ga]DOTATATE was 100–200 MBq and the acquisition began at 1 h after injection. The lesion with the highest SUVmax in each patient was analyzed.ResultsIn the total sample, the sensitivity of [68Ga]DOTATATE was 69.05 %. The sensitivities were significantly different among G1, G2, and G3 groups (72.22 %, 91.53 %, and 40.82 %, respectively; p < 0.01). The SUVmax of the G3 group was lowest. We also found that the sensitivity and SUVmax were significantly higher (p < 0.05) in patients with pancreatic NENs (Pan-NENs) than in patients with gastrointestinal NENs (Gi-NENs) and unknown primary NENs (Up-NENs). A significant negative correlation between SUVmax and Ki-67 was found (r = − 0.429, p < 0.01). Using SUVmax to differentiate neuroendocrine tumors (NETs) and neuroendocrine cancers (NECs), the area under the ROC curve (AUC) was 0.771 and the cutoff value of SUVmax was 11.25 (sensitivity 79.2 %, specificity 65.3 %). However, Pan-NENs did not show any statistical significance results in correlation and ROC analysis.Conclusion[68Ga]DOTATATE PET/CT results showed a negative correlation with GEP-NEN cell proliferation and were complementary to Ki-67. Pan-NENs were different from Gi-NENs and Up-NENs when compared to somatostatin receptor expression. More... »

PAGES

984-990

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11307-019-01328-3

DOI

http://dx.doi.org/10.1007/s11307-019-01328-3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1112305565

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30796708


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29 schema:description PurposeObjectives of the study are to analyze the correlation between [68Ga]DOTATATE positron emission tomography (PET)/X-ray computed tomography (CT) measurements and various biological characteristics of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs), and to determine optimal cutoff value of SUVmax (standard uptake value) to differentiate neuroendocrine tumors (NETs) and neuroendocrine cancers (NECs).ProceduresOf the GEP-NEN cases (73 males, 53 females; age 18–77 years) with pathologically proven primary and/or metastatic lesions, 126 were studied. All of the short axes of lesions were larger than 0.5 cm in order to avoid the partial volume effect. Patients fasted for 6 h before the PET/CT scans. The dose of [68Ga]DOTATATE was 100–200 MBq and the acquisition began at 1 h after injection. The lesion with the highest SUVmax in each patient was analyzed.ResultsIn the total sample, the sensitivity of [68Ga]DOTATATE was 69.05 %. The sensitivities were significantly different among G1, G2, and G3 groups (72.22 %, 91.53 %, and 40.82 %, respectively; p < 0.01). The SUVmax of the G3 group was lowest. We also found that the sensitivity and SUVmax were significantly higher (p < 0.05) in patients with pancreatic NENs (Pan-NENs) than in patients with gastrointestinal NENs (Gi-NENs) and unknown primary NENs (Up-NENs). A significant negative correlation between SUVmax and Ki-67 was found (r = − 0.429, p < 0.01). Using SUVmax to differentiate neuroendocrine tumors (NETs) and neuroendocrine cancers (NECs), the area under the ROC curve (AUC) was 0.771 and the cutoff value of SUVmax was 11.25 (sensitivity 79.2 %, specificity 65.3 %). However, Pan-NENs did not show any statistical significance results in correlation and ROC analysis.Conclusion[68Ga]DOTATATE PET/CT results showed a negative correlation with GEP-NEN cell proliferation and were complementary to Ki-67. Pan-NENs were different from Gi-NENs and Up-NENs when compared to somatostatin receptor expression.
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46 Ki-67
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52 Pan-NENs
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58 acquisition
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60 area
61 axes
62 biological characteristics
63 cancer
64 cases
65 cell proliferation
66 characteristics
67 correlation
68 curves
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70 dose
71 effect
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73 expression
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75 gastrointestinal NENs
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79 lesions
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81 metastatic lesions
82 negative correlation
83 neoplasms
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86 neuroendocrine tumors
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88 order
89 pancreatic NENs
90 partial volume effects
91 patients
92 positron emission tomography
93 primary NENs
94 proliferation
95 rays
96 receptor expression
97 results
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100 sensitivity
101 short axes
102 significance results
103 significant negative correlation
104 somatostatin receptor expression
105 statistical significance results
106 study
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112 values
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