Abstract
Introduction
The aim of this study was to establish the value of thalium-201 single-photon emission computed tomography (201Tl-SPECT) in the detection of recurrences in the follow-up of patients with treated primary neuroepithelial tumours.
Material and methods
Sixty-three201Tl-SPECT were performed in 36 patients with glioma (12 males, mean age of 46±13 years). All patients underwent surgery and adjuvant radiotherapy (and some of them received chemotherapy).
All patients were submitted to morphological neuroimaging techniques as well (and201 Tl-SPECT). Mean follow-up was 18.3±14.6 months.
Gold standard was based on clinical follow-up, therapeutical decisions (at least 4 months after201Tl-SPECT) and imaging features.
Results
Sensitivity and specificity of201Tl-SPECT to detect glioma recurrences were 90% and 100% respectively and 93% accuracy. Sensitivity and specificity for high grade tumours, were 100% respectively. Due to 4 false negatives, sensitivity and specificity for low grade gliomas were 78% and 100%. In the positive201Tl-SPECT group of patients overall survival was 13.64% at the end of the study. The negative201Tl-SPECT group had 84.62% overall survival at the end of the study (p=0.0003).
Conclusions
201Tl-SPECT is a valuable and noninvasive diagnostic procedure to detect recurrence or progression disease for treated gliomas and ependymomas.201Tl-SPECT has a good correlation with short term prognosis with excellent diagnostic accuracy.
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Caresia, A.P., Castell-Conesa, J., Negre, M. et al. Thallium-201SPECT assessment in the detection of recurrences of treated gliomas and ependymomas. Clin Transl Oncol 8, 750–754 (2006). https://doi.org/10.1007/s12094-006-0122-9
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DOI: https://doi.org/10.1007/s12094-006-0122-9