1. A prospective study on inter-operator variability in semi-robotic software-based MRI/TRUS-fusion targeted prostate biopsies
- Author
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Fabian Tollens, Manuel Neuberger, Manuel Ritter, Jost von Hardenberg, Niklas Westhoff, Samuel Doryumu, Fabian Derigs, Dominik Nörenberg, and Maurice Stephan Michel
- Subjects
Image-Guided Biopsy ,Male ,Nephrology ,medicine.medical_specialty ,Prostate biopsy ,Urology ,Targeted biopsy ,Prostate cancer ,Robotic Surgical Procedures ,Prostate ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Prospective cohort study ,Reproducibility ,medicine.diagnostic_test ,business.industry ,Prostatic Neoplasms ,Reproducibility of Results ,Magnetic resonance imaging ,medicine.disease ,Magnetic Resonance Imaging ,medicine.anatomical_structure ,Radiology ,business ,Software - Abstract
Purpose Magnetic resonance imaging (MRI)/ultrasound-fusion prostate biopsy (FB) comprises multiple steps each of which can cause alterations in targeted biopsy (TB) accuracy leading to false-negative results. The aim was to assess the inter-operator variability of software-based fusion TB by targeting the same MRI-lesions by different urologists. Methods In this prospective study, 142 patients eligible for analysis underwent software-based FB. TB of all lesions (n = 172) were carried out by two different urologists per patient (n = 31 urologists). We analyzed the number of mismatches [overall prostate cancer (PCa), clinically significant PCa (csPCa) and non-significant PCa (nsPCa)] between both performed TB per patient. In addition we evaluated factors contributing to inter-operator variability by uni- and multivariable analyses. Results In 11.6% of all MRI-lesions (10.6% of all patients) there was a mismatch between TB1 and TB2 in terms of overall prostate cancer (PCa detection. Regarding csPCa, patient-based mismatch occurred in 14.8% (n = 21). Overall PCa and csPCa detection rate of TB1 and TB2 did not differ significantly on a per-patient and per-lesion level. Analyses revealed a smaller lesion size as predictive for mismatches (OR 9.19, 95% CI 2.02–41.83, p Conclusion Reproducibility and precision of targeting particularly small lesions is still limited although using software-based FB. Further improvements in image-fusion, segmentation, needle-guidance, and automatization are necessary.
- Published
- 2021
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