Correlation of pretreatment 18F-FDG PET tumor textural features with gene expression in pharyngeal cancer and implications for radiotherapy-based treatment outcomes

  • Shang-Wen Chen
  • Wei-Chih Shen
  • Ying-Chun Lin
  • Rui-Yun Chen
  • Te-Chun Hsieh
  • Kuo-Yang Yen
  • Chia-Hung Kao
Original Article

DOI: 10.1007/s00259-016-3580-5

Cite this article as:
Chen, SW., Shen, WC., Lin, YC. et al. Eur J Nucl Med Mol Imaging (2017) 44: 567. doi:10.1007/s00259-016-3580-5

Abstract

Purpose

This study investigated the correlation of the matrix heterogeneity of tumors on 18F-fluorodeoxyglucose positron emission tomography–computed tomography (PET–CT) with gene-expression profiling in patients with pharyngeal cancer and determined the prognostic factors for radiotherapy-based treatment outcomes.

Methods

We retrospectively reviewed the records of 57 patients with stage III–IV oropharyngeal or hypopharyngeal cancer who had completed definitive therapy. Four groups of the textural features as well as 31 indices were studied in addition to maximum standard uptake value, metastatic tumor volume, and total lesion glycolysis. Immunohistochemical data from pretreatment biopsy specimens (Glut1, CAIX, VEGF, HIF-1α, EGFR, Ki-67, Bcl-2, CLAUDIN-4, YAP-1, c-Met, and p16) were analyzed. The relationships between the indices and genomic expression were studied, and the robustness of various textural features relative to cause-specific survival and primary relapse-free survival was analyzed.

Results

The overexpression of VEGF was positively associated with the increased values of the matrix heterogeneity obtained using gray-level nonuniformity for zone (GLNUz) and run-length nonuniformity (RLNU). Advanced T stage (p = 0.01, hazard ratio [HR] = 3.38), a VEGF immunoreactive score of >2 (p = 0.03, HR = 2.79), and a higher GLNUz value (p = 0.04, HR = 2.51) were prognostic factors for low cause-specific survival, whereas advanced T stage, a HIF-1α staining percentage of ≥80%, and a higher GLNUz value were prognostic factors for low primary-relapse free survival.

Conclusions

The overexpression of VEGF was associated with the increased matrix index of GLNUz and RLNU. For patients with pharyngeal cancer requiring radiotherapy, the treatment outcome can be stratified according to the textural features, T stage, and biomarkers.

Keywords

Head and neck cancer 18F-fluorodeoxyglucose positron emission Textural analysis Genomic expression 

Abbreviations

18F-FDG

18F-fluorodeoxyglucose

CRT

Chemoradiotherapy

CTVs

Clinical target volumes

GLNUz

Gray-level nonuniformity for zone

GTV

Gross tumor volume

HNSCC

Head and neck squamous cell carcinoma

HPV

Human papilloma virus

MTV

Metastatic tumor volume

PET/CT

Positron emission tomography-computed tomography

RLNU

Run-length nonuniformity

RT

Radiotherapy

SUV

Standardized uptake value

TLG

Total lesion glycolysis

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Shang-Wen Chen
    • 1
    • 2
    • 3
    • 4
  • Wei-Chih Shen
    • 5
    • 6
  • Ying-Chun Lin
    • 1
    • 7
  • Rui-Yun Chen
    • 8
  • Te-Chun Hsieh
    • 9
    • 10
  • Kuo-Yang Yen
    • 9
    • 10
  • Chia-Hung Kao
    • 4
    • 9
    • 11
  1. 1.Department of Radiation OncologyChina Medical University HospitalTaichungTaiwan
  2. 2.School of MedicineChina Medical UniversityTaichungTaiwan
  3. 3.School of MedicineTaipei Medical UniversityTaipeiTaiwan
  4. 4.Graduate Institute of Clinical Medical Science, School of Medicine, College of MedicineChina Medical UniversityTaichungTaiwan
  5. 5.Cancer Center and Department of Medical Research, China Medical University HospitalChina Medical UniversityTaichungTaiwan
  6. 6.Department of Computer Science and Information EngineeringAsia UniversityTaichungTaiwan
  7. 7.The Ph.D. Program for Cancer Biology and Drug DiscoveryChina Medical University and Academia SinicaTaichungTaiwan
  8. 8.Department of PathologyChina Medical University HospitalTaichungTaiwan
  9. 9.Department of Nuclear Medicine and PET CenterChina Medical University HospitalTaichungTaiwan
  10. 10.Department of Biomedical Imaging and Radiological ScienceChina Medical UniversityTaichungTaiwan
  11. 11.Department of Bioinformatics and Medical EngineeringAsia UniversityTaichungTaiwan

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