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Head Neck. 2007 Jun;29(6):537-45.

Integrated PET/CT system for staging and surveillance of skull base tumors.

Author information

1
Department of Otolaryngology Head and Neck Surgery, Tel-Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel. ziv@baseofskull.org

Abstract

BACKGROUND:

The utility of preoperative and postoperative whole body integrated positron emission tomography-computed tomography (PET-CT) scanning for staging and follow-up in patients with skull base tumors is undetermined.

METHODS:

We prospectively evaluated PET-CT findings in 47 patients using 57 scans. Most (35/47, 75%) had anterior skull base tumors and the majority (74%) had advanced-stage (III-IV) disease.

RESULTS:

The scans showed high sensitivity for detection of various types of malignant tumors and provided 39 items of additional information, changing the clinical staging and management of 11 patients (23%). Recurrence of primary tumors was detected in 8 patients, positive regional (neck) metastases in 3, and distant metastases in 3. The positive uptake was due to osteoradionecrosis in 2 other patients. The sensitivity of PET-CT was 0.77 and the specificity was 0.81 (0.83 positive predictive value and 0.76 negative predictive value).

CONCLUSIONS:

PET-CT provides accurate data on anatomy, tumor staging, and early disease recurrence in the skull base.

PMID:
17274059
DOI:
10.1002/hed.20545
[Indexed for MEDLINE]

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