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Robotic Mechanical Localization of Prostate Cancer Correlates with Magnetic Resonance Imaging Scans

Authors
 Tae Young Shin ; Yeong Jin Kim ; Koon Ho Rha ; Jung Kim ; Sey Kiat Lim 
Citation
 Yonsei Medical Journal, Vol.54(4) : 907~911, 2013 
Journal Title
 Yonsei Medical Journal 
ISSN
 0513-5796 
Issue Date
2013
Abstract
PURPOSE: To evaluate the concordance of cancer location of the tissue mapping from a mechanical pressure transducer with magnetic resonance imaging (MRI) scans. MATERIALS AND METHODS: A total of 60 indentations were performed on 5 prostate specimens obtained after radical prostatectomy utilizing a robotic indentation system. The mechanical elastic moduli of suspected malignant lesions were calculated and mapped, and their locations were compared with suspicious areas of malignancy on MRI scans. RESULTS: The concordance rate between the location mapping from the robotic indentation system and MRI scans results was 90.0% (54/60). The sensitivity and specificity of the robotic indentation system were 87.9% (29/33) and 92.6% (25/27), respectively. The positive predictive value and negative predictive value were 93.5% (29/31) and 93.1% (27/29), respectively. CONCLUSION: The locations of malignant lesions derived from our robotic indentation system correlated strongly with the locations of suspected areas of malignancy on MRI scans. Our robotic system may provide a more targeted biopsy of the prostate than conventional non-targeted systemic biopsy, possibly improving the diagnostic accuracy of prostatic biopsies for cancer.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/88240
DOI
10.3349/ymj.2013.54.4.907
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Urology
Yonsei Authors
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