PMID- 22095438 OWN - NLM STAT- MEDLINE DCOM- 20120716 LR - 20211021 IS - 1432-1084 (Electronic) IS - 0938-7994 (Linking) VI - 22 IP - 4 DP - 2012 Apr TI - Effectiveness of semi-quantitative multiphase dynamic contrast-enhanced MRI as a predictor of malignancy in complex adnexal masses: radiological and pathological correlation. PG - 880-90 LID - 10.1007/s00330-011-2331-z [doi] AB - OBJECTIVES: To determine whether threshold criteria using semi-quantitative multiphase-dynamic contrast-enhanced magnetic resonance imaging (DCE- MRI) can improve prediction of malignancy in complex adnexal masses. METHODS: MRI features of 70 complex adnexal masses with enhancing components in 63 patients were reviewed and correlated with histopathology (n = 67) or radiological follow-up (n = 3). Masses were categorised as benign (n = 34) or borderline/invasive malignant (n = 36). Borderline lesions (n = 6) were also analysed separately. Using the semi-quantitative breast analysis software, regions of interest were drawn around the most avidly enhancing component of each lesion. Maximum absolute enhancement of signal intensities (SI(max)), maximum relative enhancement (SI(rel)) and wash-in rate (WIR) were recorded. Optimal threshold criteria were established to predict borderline/invasive malignancy. RESULTS: There was a significant difference in mean SI(max) (P < 0.05), SI(rel) (P < 0.01) and WIR (P < 0.001) between benign and borderline/invasive malignant groups. A cut-off WIR >/= 9.5 l/s had a specificity of 88% and positive predictive value of 86% for predicting malignancy, significantly better than conventional MRI (62%, P < 0.01). WIR <8.2 l/s had a negative predictive value of 94%. CONCLUSION: Threshold criteria using semi-quantitative multiphase DCE-MRI improves specificity in the prediction of malignancy in complex adnexal masses with enhancing components and is complementary to standard qualitative assessment. KEY POINTS: Semi-quantitative DCE-MRI threshold criteria are effective for predicting ovarian malignancy. The surgical approach may be altered depending on DCE-MRI threshold criteria analysis. Borderline tumours demonstrate significant overlap with benign lesions using DCE-MRI threshold criteria. FAU - Bernardin, Livia AU - Bernardin L AD - Policlinico GB Rossi, P.le L.A. Scuro, 37134, Verona, Italy. liviabernardin@yahoo.it FAU - Dilks, Philip AU - Dilks P FAU - Liyanage, Sidath AU - Liyanage S FAU - Miquel, Marc E AU - Miquel ME FAU - Sahdev, Anju AU - Sahdev A FAU - Rockall, Andrea AU - Rockall A LA - eng PT - Journal Article DEP - 20111118 PL - Germany TA - Eur Radiol JT - European radiology JID - 9114774 RN - 0 (Contrast Media) RN - 0 (Organometallic Compounds) RN - 6HG8UB2MUY (Meglumine) RN - L0ND3981AG (gadoterate meglumine) SB - IM MH - Adnexal Diseases/*diagnosis MH - Contrast Media MH - Diagnosis, Differential MH - Female MH - Humans MH - Image Enhancement/methods MH - Image Interpretation, Computer-Assisted/*methods MH - Magnetic Resonance Imaging/*methods MH - *Meglumine MH - *Organometallic Compounds MH - Ovarian Neoplasms/*diagnosis MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Statistics as Topic EDAT- 2011/11/19 06:00 MHDA- 2012/07/17 06:00 CRDT- 2011/11/19 06:00 PHST- 2011/08/11 00:00 [received] PHST- 2011/10/27 00:00 [accepted] PHST- 2011/10/14 00:00 [revised] PHST- 2011/11/19 06:00 [entrez] PHST- 2011/11/19 06:00 [pubmed] PHST- 2012/07/17 06:00 [medline] AID - 10.1007/s00330-011-2331-z [doi] PST - ppublish SO - Eur Radiol. 2012 Apr;22(4):880-90. doi: 10.1007/s00330-011-2331-z. Epub 2011 Nov 18.