Document Detail

Trocar-sharpened needles for image-guided prostate biopsy improve sample quality and performance: first clinical results.
MedLine Citation:
PMID:  24935738     Owner:  NLM     Status:  Publisher    
Objective: To show the benefit of trocar-sharpened needles for image-guided prostate biopsy compared to standard bevelled needles in patients. Materials and Methods: 24 men underwent MRI-targeted fusion-guided transperineal saturation prostate biopsy, each with half standard bevelled and half trocar-sharpened needles. All taken biopsies were scored (1= worse to 5= best) by one urologist for the following criteria: - Accuracy of matching between planned and performed biopsy. - Histologic quality of the sample. - Elegance, which is the easiness to take the biopsy in proper time, planned position and best histologic quality. Afterwards the histologic sample quality was evaluated by a blinded pathologist. To show a possible training effect blinded untrained junior residents performed biopsies in four men (103 cores). Results: Overall, 600 single biopsies were analysed. The trocar-sharpened needles demonstrated a significantly (p<0.05) better scoring for accuracy and elegance rated by the urologist. Histologic quality scored by the pathologist was superior. Moreover, significantly lower target errors with trocar-sharpened needles were achieved by untrained residents but not by the experienced user. Conclusion: Using trocar-sharpened needles helps urologists to perform targeted prostate biopsy more elegantly and accurately. In addition, histopathologic sample quality was superior which may directly improve diagnostic certainty. There is an undeniable training effect in image-guided biopsy and unexperienced users can significantly reduce target errors with trocar-sharpened needles.
Tobias Simpfendörfer; Timur H Kuru; Sarah Steinemann; Claudia Bergsträsser; Svenja Block; Wilfried Roth; Matthias C Roethke; Markus Hohenfellner; Boris Hadaschik
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-16
Journal Detail:
Title:  Journal of endourology / Endourological Society     Volume:  -     ISSN:  1557-900X     ISO Abbreviation:  J. Endourol.     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-6-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8807503     Medline TA:  J Endourol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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