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Erschienen in: Surgical Endoscopy 11/2018

14.05.2018

Quantitative transrectal shear wave elastography undergoing salvage extraperitoneal laparoscopic radical prostatectomy following failed radiotherapy

verfasst von: Cheng Wei, Magdalena Szewczyk-Bieda, Paddy Nibblok, E. Brown, Stephen Lang, Ghulam Nabi

Erschienen in: Surgical Endoscopy | Ausgabe 11/2018

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Abstract

Background

To evaluate pre-surgical quantitative transrectal shear wave elastography (SWE) in the detection and characterisation of radioresistant prostate cancer.

Methods

Twelve men with recurrent prostate cancer following external beam radiotherapy were included in a prospective protocol-driven study. All underwent MR imaging and quantitative shear wave elastographic assessment of recurrent disease prior to salvage laparoscopic radical prostatectomy procedures. Images were used to construct 3D mold printing and histopathological processing of surgical specimen. Statistical analyses including ROC were generated using software programmes.

Results

There were 48 cancer foci identified on final histopathology using patient-specific mold-based approach in 12 patients. Mean number of lesion was 3.4 (range 2–4). Quantitative transrectal SWE showed a sensitivity and specificity 0.77 (95% CI 0.627–0.880) and 0.82 (95% CI 0.642–0.942), respectively. The diagnostic accuracy increased with increasing size of the lesions with overall AUC of 0.89.

Conclusions

In our series, quantitative transrectal SWE showed a good diagnostic accuracy in the detection and characterisation of recurrent prostate cancer following failed radiotherapy treatment. These findings may help in targeting biopsies or future focal treatment options.
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Metadaten
Titel
Quantitative transrectal shear wave elastography undergoing salvage extraperitoneal laparoscopic radical prostatectomy following failed radiotherapy
verfasst von
Cheng Wei
Magdalena Szewczyk-Bieda
Paddy Nibblok
E. Brown
Stephen Lang
Ghulam Nabi
Publikationsdatum
14.05.2018
Verlag
Springer US
Erschienen in
Surgical Endoscopy / Ausgabe 11/2018
Print ISSN: 0930-2794
Elektronische ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-018-6207-z

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