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Comparative Study
. 2006 Sep 15;12(18):5435-41.
doi: 10.1158/1078-0432.CCR-05-1773.

Tumor hypoxia imaging with [F-18] fluoromisonidazole positron emission tomography in head and neck cancer

Affiliations
Comparative Study

Tumor hypoxia imaging with [F-18] fluoromisonidazole positron emission tomography in head and neck cancer

Joseph G Rajendran et al. Clin Cancer Res. .

Abstract

Purpose: Advanced head and neck cancer shows hypoxia that results in biological changes to make the tumor cells more aggressive and less responsive to treatment resulting in poor survival. [F-18] fluoromisonidazole (FMISO) positron emission tomography (PET) has the ability to noninvasively quantify regional hypoxia. We investigated the prognostic effect of pretherapy FMISO-PET on survival in head and neck cancer.

Experimental design: Seventy-three patients with head and neck cancer had pretherapy FMISO-PET and 53 also had fluorodeoxyglucose (FDG) PET under a research protocol from April 1994 to April 2004.

Results: Significant hypoxia was identified in 58 patients (79%). The mean FMISO tumor/bloodmax (T/Bmax) was 1.6 and the mean hypoxic volume (HV) was 40.2 mL. There were 28 deaths in the follow-up period. Mean FDG standard uptake value (SUV)max was 10.8. The median time for follow-up was 72 weeks. In a univariate analysis, T/Bmax (P=0.002), HV (P=0.04), and the presence of nodes (P=0.01) were strong independent predictors. In a multivariate analysis, including FDG SUVmax, no variable was predictive at P<0.05. When FDG SUVmax was removed from the model (resulting in n=73 with 28 events), nodal status and T/Bmax (or HV) were both highly predictive (P=0.02, 0.006 for node and T/Bmax, respectively; P=0.02 and 0.001 for node and HV, respectively).

Conclusions: Pretherapy FMISO uptake shows a strong trend to be an independent prognostic measure in head and neck cancer.

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Figures

Fig. 1
Fig. 1
FMISO and FDG-PET images (coronal) of a 70-year-old patient with a primary piriform sinus squamous cell carcinoma (solid arrow) with metastatic lymph nodes (open arrows).T/Bmax is 1.5. HV is 6.44 mL for the primary tumor.
Fig. 2
Fig. 2
Kaplan-Meier overall survival curve when patients are classified by the presence of nodes. High risk (n = 46) is defined as having N2 or N3 disease.
Fig. 3
Fig. 3
Kaplan-Meier overall survival curve when patients are classified byT/Bmax. High T/Bmax is defined as patients whose T/Bmax is above the median of 1.5.
Fig. 4
Fig. 4
Kaplan-Meier overall survival curve when patients are classified by FDG uptake. High FDG is defined as patients whose FDG uptake is above the median SUVmax of 10.4.

Comment in

  • Tumor hypoxia imaging.
    Serganova I, Humm J, Ling C, Blasberg R. Serganova I, et al. Clin Cancer Res. 2006 Sep 15;12(18):5260-4. doi: 10.1158/1078-0432.CCR-06-0517. Clin Cancer Res. 2006. PMID: 17000656 Review. No abstract available.

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