The addition of a sagittal image fusion improves the prostate cancer detection in a sensor-based MRI /ultrasound fusion guided targeted biopsy

BMC Urology

Research Article

Matthias Haas¹  Patrick Asbach¹  Hannes Cash²  Kurt Miller²  John Buckendahl²  Carsten Kempkensteffen²  Stefan Hinz²  Maximilian Königbauer²  Jörg Neymeyer²  Karsten Günzel² 

[1] Departement of Radiology, Charité — University Medicine Berlin, Hindenburgdamm 30, 12203, Berlin, Germany;Department of Urology, Charité — University Medicine Berlin, Hindenburgdamm 30, 12203, Berlin, Germany;

关键词: Multiparametric magnetic resonance imaging;    Targeted biopsy;    Prostate cancer detection;    MRI/US fusion biopsy;   

DOI  :  10.1186/s12894-016-0196-9

 received in 2016-07-08, accepted in 2016-12-23,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundTo explore the diagnostic benefit of an additional image fusion of the sagittal plane in addition to the standard axial image fusion, using a sensor-based MRI/US fusion platform.MethodsDuring July 2013 and September 2015, 251 patients with at least one suspicious lesion on mpMRI (rated by PI-RADS) were included into the analysis. All patients underwent MRI/US targeted biopsy (TB) in combination with a 10 core systematic prostate biopsy (SB). All biopsies were performed on a sensor-based fusion system. Group A included 162 men who received TB by an axial MRI/US image fusion. Group B comprised 89 men in whom the TB was performed with an additional sagittal image fusion.ResultsThe median age in group A was 67 years (IQR 61–72) and in group B 68 years (IQR 60–71). The median PSA level in group A was 8.10 ng/ml (IQR 6.05–14) and in group B 8.59 ng/ml (IQR 5.65–12.32). In group A the proportion of patients with a suspicious digital rectal examination (DRE) (14 vs. 29%, p = 0.007) and the proportion of primary biopsies (33 vs 46%, p = 0.046) were significantly lower. The rate of PI-RADS 3 lesions were overrepresented in group A compared to group B (19 vs. 9%; p = 0.044). Classified according to PI-RADS 3, 4 and 5, the detection rates of TB were 42, 48, 75% in group A and 25, 74, 90% in group B. The rate of PCa with a Gleason score ≥7 missed by TB was 33% (18 cases) in group A and 9% (5 cases) in group B; p-value 0.072. An explorative multivariate binary logistic regression analysis revealed that PI-RADS, a suspicious DRE and performing an additional sagittal image fusion were significant predictors for PCa detection in TB. 9 PCa were only detected by TB with sagittal fusion (sTB) and sTB identified 10 additional clinically significant PCa (Gleason ≥7).ConclusionPerforming an additional sagittal image fusion besides the standard axial fusion appears to improve the accuracy of the sensor-based MRI/US fusion platform.

【 授权许可】

CC BY   
© The Author(s). 2017