TY - JOUR
T1 - Risk Stratification of Pediatric Patients with Neuroblastoma Using Volumetric Parameters of 18F-FDG and 18F-DOPA PET/CT
AU - Liu, Chia Ju
AU - Lu, Meng Yao
AU - Liu, Yen Lin
AU - Ko, Chi Lun
AU - Ko, Kuan Yin
AU - Tzen, Kai Yuan
AU - Chang, Hsiu Hao
AU - Yang, Yung Li
AU - Jou, Shiann Tarng
AU - Hsu, Wen Ming
AU - Yen, Ruoh Fang
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Purpose This study determined the prognostic value of volumetric parameters derived from pretreatment 18F-FDG and 18F-DOPA PET/CT of neuroblastoma and their correlation with clinical and histopathologic features. Patients and Methods A total of 25 children with neuroblastoma underwent pretreatment 18F-FDG and 18F-DOPA PET/CT within 4 weeks. The SUVmax of primary tumors on 18F-FDG and 18F-DOPA PET were recorded as SUVFDG and SUVDOPA, respectively. For volumetric parameters of primary tumors, 40% of SUVmax was used to generate volume of interest. If the 40% of SUVmax was below 2.5, an SUV threshold of 2.5 was used instead. Metabolic tumor volume (MTV), total lesion glycolysis (TLG), dopaminergic tumor volume (DTV), and total lesion 18F-DOPA activity (TLDA) were recorded as 18F-FDG and 18F-DOPA volumetric parameters. All indices were compared between groups distinguished by survival status and clinical features, including bone marrow involvement, lymph node metastasis, amplification of the MYCN oncogene, invasive features on anatomic images, and risk categories. The Kaplan-Meier method and log-rank test were used to compare the survival curves between groups. Results The median follow-up period was 28.2 months. Nonsurvivors (20%) tended to have lower SUVDOPA, DTV, and TLDA (P ≤ 0.05), and higher SUVFDG, MTV, and TLG (all P < 0.05). Lower 18F-DOPA uptake is associated with bone marrow and lymph node metastases (all P < 0.05). Higher 18F-FDG uptake is associated with MYCN amplification (all P < 0.05) and anatomic invasive features of tumors such as vascular encasement or adjacent organ invasion (TLG, P = 0.05). Only volumetric indices (DTV, TLDA, MTV, and TLG) significantly differed among risk groups (all P < 0.05). Conclusions Pretherapeutic 18F-DOPA and 18F-FDG PET provided complementary information, and both can be served for risk stratification. Volumetric indices of 18F-DOPA and 18F-FDG PET correlate more highly with risk grouping.
AB - Purpose This study determined the prognostic value of volumetric parameters derived from pretreatment 18F-FDG and 18F-DOPA PET/CT of neuroblastoma and their correlation with clinical and histopathologic features. Patients and Methods A total of 25 children with neuroblastoma underwent pretreatment 18F-FDG and 18F-DOPA PET/CT within 4 weeks. The SUVmax of primary tumors on 18F-FDG and 18F-DOPA PET were recorded as SUVFDG and SUVDOPA, respectively. For volumetric parameters of primary tumors, 40% of SUVmax was used to generate volume of interest. If the 40% of SUVmax was below 2.5, an SUV threshold of 2.5 was used instead. Metabolic tumor volume (MTV), total lesion glycolysis (TLG), dopaminergic tumor volume (DTV), and total lesion 18F-DOPA activity (TLDA) were recorded as 18F-FDG and 18F-DOPA volumetric parameters. All indices were compared between groups distinguished by survival status and clinical features, including bone marrow involvement, lymph node metastasis, amplification of the MYCN oncogene, invasive features on anatomic images, and risk categories. The Kaplan-Meier method and log-rank test were used to compare the survival curves between groups. Results The median follow-up period was 28.2 months. Nonsurvivors (20%) tended to have lower SUVDOPA, DTV, and TLDA (P ≤ 0.05), and higher SUVFDG, MTV, and TLG (all P < 0.05). Lower 18F-DOPA uptake is associated with bone marrow and lymph node metastases (all P < 0.05). Higher 18F-FDG uptake is associated with MYCN amplification (all P < 0.05) and anatomic invasive features of tumors such as vascular encasement or adjacent organ invasion (TLG, P = 0.05). Only volumetric indices (DTV, TLDA, MTV, and TLG) significantly differed among risk groups (all P < 0.05). Conclusions Pretherapeutic 18F-DOPA and 18F-FDG PET provided complementary information, and both can be served for risk stratification. Volumetric indices of 18F-DOPA and 18F-FDG PET correlate more highly with risk grouping.
KW - F-DOPA
KW - F-FDG
KW - neuroblastoma
KW - risk stratification
KW - volumetric parameters
UR - http://www.scopus.com/inward/record.url?scp=85009168923&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85009168923&partnerID=8YFLogxK
U2 - 10.1097/RLU.0000000000001529
DO - 10.1097/RLU.0000000000001529
M3 - Article
C2 - 28072621
AN - SCOPUS:85009168923
SN - 0363-9762
VL - 42
SP - e142-e148
JO - Clinical Nuclear Medicine
JF - Clinical Nuclear Medicine
IS - 3
ER -