TY - JOUR T1 - Prognostic Value of Metabolic Tumor Volume and Total Lesion Glycolysis in Head and Neck Cancer: A Systematic Review and Meta-Analysis JF - Journal of Nuclear Medicine JO - J Nucl Med SP - 884 LP - 890 DO - 10.2967/jnumed.113.133801 VL - 55 IS - 6 AU - Kyoungjune Pak AU - Gi Jeong Cheon AU - Hyun-Yeol Nam AU - Seong-Jang Kim AU - Keon Wook Kang AU - June-Key Chung AU - E. Edmund Kim AU - Dong Soo Lee Y1 - 2014/06/01 UR - http://jnm.snmjournals.org/content/55/6/884.abstract N2 - We conducted a comprehensive systematic review of the literature on volumetric parameters and a meta-analysis of the prognostic value of metabolic tumor volume (MTV) and total lesion glycolysis (TLG) in patients with head and neck cancer (HNC). Methods: A systematic search of MEDLINE and EMBASE was performed using the key words PET, head and neck, and volume. Inclusion criteria were 18F-FDG PET used as an initial imaging tool; studies limited to HNC; patients who had not undergone surgery, chemotherapy, or radiotherapy before PET scans; and studies reporting survival data. Event-free survival and overall survival were considered markers of outcome. The impact of MTV or TLG on survival was measured by the effect size hazard ratio (HR). Data from each study were analyzed using Review Manager. Results: Thirteen studies comprising 1,180 patients were included in this study. The combined HR for adverse events was 3.06 (2.33–4.01, P < 0.00001) with MTV and 3.10 (2.27–4.24, P < 0.00001) with TLG, meaning that tumors with high volumetric parameters were associated with progression or recurrence. Regarding overall survival, the pooled HR was 3.51 (2.62–4.72, P < 0.00001) with MTV and 3.14 (2.24–4.40, P < 0.00001) with TLG. There was no evidence of significant statistical heterogeneity at an I2 of 0%. Conclusion: MTV and TLG are prognostic predictors of outcome in patients with HNC. Despite clinically heterogeneous HNC and the various methods adopted between studies, we can confirm that patients with a high MTV or TLG have a higher risk of adverse events or death. ER -