title: Does diffusion-weighted imaging add diagnostic confidence in discriminating between benign and malignant solid focal liver lesions?
abstract: We investigated whether diffusion-weighted Imaging (DWI) adds diagnostic confidence in assessing focal liver lesions (FLLs). By reviewing FLLs without and with DWI at 1.5 T, two radiologists scored the confidence in diagnosing benignancy/malignancy (confidence score), and DWI usefulness (usefulness score). We showed that adding DWI significantly decreased the confidence score of the most experienced radiologist and increased his confidence in false-negative diagnoses showing atypical features on conventional magnetic resonance imaging.
authors: Institute of Diagnostic Radiology, University of Udine, Azienda Ospedaliero-Universitaria, "S.Maria della Misericordia", via Colugna n. 50 - 33100 Udine, Italy. Electronic address: rgirometti@sirm.org.
authors: Rossano
authors: R
authors: Girometti
authors: Radiology Department, "S. Maria degli Angeli" Hospital, via Montereale n. 24 - 33170, Pordenone, Italy.
authors: Matteo
authors: M
authors: Del Pin
authors: Institute of Diagnostic Radiology, University of Udine, Azienda Ospedaliero-Universitaria, "S.Maria della Misericordia", via Colugna n. 50 - 33100 Udine, Italy.
authors: Serena
authors: S
authors: Pullini
authors: Institute of Diagnostic Radiology, University of Udine, Azienda Ospedaliero-Universitaria, "S.Maria della Misericordia", via Colugna n. 50 - 33100 Udine, Italy.
authors: Lorenzo
authors: L
authors: Cereser
authors: Institute of Diagnostic Radiology, University of Udine, Azienda Ospedaliero-Universitaria, "S.Maria della Misericordia", via Colugna n. 50 - 33100 Udine, Italy.
authors: Giuseppe
authors: G
authors: Como
authors: Institute of Diagnostic Radiology, University of Udine, Azienda Ospedaliero-Universitaria, "S.Maria della Misericordia", via Colugna n. 50 - 33100 Udine, Italy.
authors: Massimo
authors: M
authors: Bazzocchi
authors: Institute of Diagnostic Radiology, University of Udine, Azienda Ospedaliero-Universitaria, "S.Maria della Misericordia", via Colugna n. 50 - 33100 Udine, Italy.
authors: Chiara
authors: C
authors: Zuiani
mesh_terms: D000328:Adult; D000368:Aged; D003657:Decision Making; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008099:Liver / Q000473:pathology*; D008113:Liver Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D015588:Observer Variation; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D055815:Young Adult
keywords: Apparent diffusion coefficient; Clinical decision making; Diagnostic confidence; Diffusion-weighted imaging; Focal liver lesions