Preoperative staging of non-small cell lung cancer: prospective comparison of PET/MR and PET/CT

European Radiology
Sang Min LeeYoung Sik Park

Abstract

To prospectively compare the accuracies of PET/MR and PET/CT in the preoperative staging of non-small cell lung cancer (NSCLC). Institutional review board approval and patients' informed consents were obtained. 45 patients with proven or radiologically suspected lung cancer which appeared to be resectable on CT were enrolled. PET/MR was performed for the preoperative staging of NSCLC followed by PET/CT without contrast enhancement on the same day. Dedicated MR images including diffusion weighted images were obtained. Readers assessed PET/MR and PET/CT with contrast-enhanced CT. Accuracies of PET/MR and PET/CT for NSCLC staging were compared. Primary tumour stages (n = 40) were correctly diagnosed in 32 patients (80.0 %) on PET/MR and in 32 patients (80.0 %) on PET/CT (P = 1.0). Node stages (n = 42) were correctly determined in 24 patients (57.1 %) on PET/MR and in 22 patients (52.4 %) on PET/CT (P = 0.683). Metastatic lesions in the brain, bone, liver, and pleura were detected in 6 patients (13.3 %). PET/MR missed one patient with pleural metastasis while PET/CT missed one patient with solitary brain metastasis and two patients with pleural metastases (P = 0.480). This study demonstrated that PET/MR in combination with contrast...Continue Reading

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Citations

Jul 18, 2016·Revista española de medicina nuclear e imagen molecular·C Riola-ParadaJ L Carreras-Delgado
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