Authors: Laurence Champion Florence Lerebours Pascal Cherel Veronique Edeline AnneLaure Giraudet Myriam Wartski Dominique Bellet JeanLouis Alberini
Publish Date: 2013/05/03
Volume: 40, Issue: 8, Pages: 1206-1213
Abstract
Inflammatory breast cancer IBC is the most aggressive type of breast cancer with a poor prognosis Locoregional staging is based on dynamic contrastenhanced DCE CT or MRI The aim of this study was to compare the performances of FDG PET/CT and DCE CT in locoregional staging of IBC and to assess their respective prognostic valuesThe study group comprised 50 women median age 51 ± 11 years followed in our institution for IBC who underwent FDG PET/CT and DCE CT scans median interval 5 ± 9 days CT enhancement parameters were net maximal enhancement net early enhancement and perfusionThe PET/CT scans showed intense FDG uptake in all primary tumours Concordance rate between PET/CT and DCE CT for breast tumour localization was 92 No significant correlation was found between SUVmax and CT enhancement parameters in primary tumours p 06 PET/CT and DCE CT results were poorly correlated for skin infiltration kappa = 019 Ipsilateral foci of increased axillary FDG uptake were found in 47 patients median SUV 79 ± 54 whereas enlarged axillary lymph nodes were observed on DCE CT in 43 patients Results for axillary node involvement were fairly well correlated kappa = 055 Nineteen patients 38 were found to be metastatic on PET/CT scan with a significant shorter progressionfree survival than patients without distant lesions p = 001 In the primary tumour no statistically significant difference was observed between high and moderate tumour FDG uptake on survival using an SUVmax cutoff of 5 p = 07 and 09 or between high and low tumour enhancement on DCE CT p 08FDG PET/CT imaging provided additional information concerning locoregional involvement to that provided by DCE CT on and allowed detection of distant metastases in the same wholebody procedure Tumour FDG uptake or CT enhancement parameters were not correlated and were not found to have any prognostic value
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