Evaluation of the ESUR PI-RADS scoring system for multiparametric MRI of the prostate with targeted MR/TRUS fusion-guided biopsy at 3.0 Tesla.
Eur Radiol
; 24(2): 344-52, 2014 Feb.
Article
em En
| MEDLINE
| ID: mdl-24196383
ABSTRACT
OBJECTIVES:
To evaluate the Prostate Imaging Reporting and Data System (PI-RADS) proposed by the European Society of Urogenital Radiology (ESUR) for detection of prostate cancer (PCa) by multiparametric magnetic resonance imaging (mpMRI) in a consecutive cohort of patients with magnetic resonance/transrectal ultrasound (MR/TRUS) fusion-guided biopsy.METHODS:
Suspicious lesions on mpMRI at 3.0 T were scored according to the PI-RADS system before MR/TRUS fusion-guided biopsy and correlated to histopathology results. Statistical correlation was obtained by a Mann-Whitney U test. Receiver operating characteristics (ROC) and optimal thresholds were calculated.RESULTS:
In 64 patients, 128/445 positive biopsy cores were obtained out of 95 suspicious regions of interest (ROIs). PCa was present in 27/64 (42%) of the patients. ROC results for the aggregated PI-RADS scores exhibited higher areas under the curve compared to those of the Likert score. Sensitivity/Specificity for the following thresholds were calculated 85 %/73 % and 67 %/92 % for PI-RADS scores of 9 and 10, respectively; 85 %/60 % and 56 %/97 % for Likert scores of 3 and 4, respectively [corrected.CONCLUSIONS:
The standardised ESUR PI-RADS system is beneficial to indicate the likelihood of PCa of suspicious lesions on mpMRI. It is also valuable to identify locations to be targeted with biopsy. The aggregated PI-RADS score achieved better results compared to the single five-point Likert score. KEY POINTS ⢠The ESUR PI-RADS scoring system was evaluated using multiparametric 3.0-T MRI. ⢠To investigate suspicious findings, transperineal MR/TRUS fusion-guided biopsy was used. ⢠PI-RADS can guide biopsy locations and improve detection of clinically significant cancer. ⢠Biopsy procedures can be optimised, reducing unnecessary negative biopsies for patients. ⢠The PI-RADS scoring system may contribute to more effective prostate MRI.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
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Imageamento por Ressonância Magnética
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Estadiamento de Neoplasias
Tipo de estudo:
Evaluation_studies
/
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Aged
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Humans
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Male
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Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Eur Radiol
Assunto da revista:
RADIOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article