Clinical value of a combined multi-phase contrast enhanced DOPA-PET/CT in neuroendocrine tumours with emphasis on the diagnostic CT component
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Patrick Veit-Haibach & Marc Schiesser & Jan Soyka & Klaus Strobel & Niklaus G. Schaefer & Rolf Hesselmann & P.-A. Clavien & Thomas F. Hany
- چاپ و سال / کشور: 2010
Description
Objective To assess the clinical value of multi-phase, contrast-enhanced DOPA-PET/CT with emphasis on the diagnostic CT component in patients with neuroendocrine tumours (NET). Methods Sixty-five patients with NET underwent DOPAcePET/ CT. The DOPA-PET, multi-phase CT and combined DOPA cePET/CT data were evaluated and diagnostic accuracies compared. The value of ceCT in DOPA cePET/ CT concerning lesion detection and therapeutic impact was evaluated. Sensitivities, specificities and accuracies were calculated. Histopathology and clinical follow-up served as the standard of reference. Differences were tested for statistical significance by McNemar’s test. Results In 40 patients metastatic and/or primary tumour lesions were detected. Lesion-based analysis for the DOPAPET showed sensitivity, specificity and accuracy of 66%, 100% and 67%, for the ceCT data 85%, 71% and 85%, and for the combined DOPA cePET/CT data 97%, 71% and 96%. DOPA cePET/CT was significantly more accurate compared with dual-phase CT (p<0.05) and PET alone (p< 0.05). Additional lesion detection was based on ceCT in 12 patients; three patients underwent significant therapeutic changes based on the ceCT findings. Conclusion DOPA cePET/CT was significantly more accurate than DOPA-PET alone and ceCT alone. The CT component itself had a diagnostic impact in a small percentage but contributed to the therapeutic strategies in selected patients.
Eur Radiol (2011) 21:256–264 DOI 10.1007/s00330-010-1930-4 Received: 10 May 2010 / Revised: 22 July 2010 / Accepted: 28 July 2010 / Published online: 15 August 2010
