alexa Comparison of real-time sonoelastography with T2-weighted endorectal magnetic resonance imaging for prostate cancer detection.
Medicine

Medicine

Journal of Medical Diagnostic Methods

Author(s): Aigner F, Pallwein L, Schocke M, Lebovici A, Junker D,

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Abstract OBJECTIVES: The purpose of this study was to compare the value of real-time sonoelastography with T2-weighted endorectal magnetic resonance imaging (MRI) for prostate cancer detection. METHODS: Thirty-three patients with an elevated prostate-specific antigen level were investigated with real-time sonoelastography and T2-weighted endorectal MRI for prostate cancer diagnosis before systematic prostate biopsy. Real-time sonoelastography was performed to assess prostate tissue elasticity, and hard areas were considered suspicious for prostate cancer. Low-signal intensity nodules on T2-weighted endorectal MRI were considered suspicious for prostate cancer. Imaging findings were assigned to 6 areas of the peripheral zone (sextants), and their cancer detection rates were compared. RESULTS: Overall, prostate cancer was detected in 13 of 33 patients (39.4\%). Both real-time sonoelastography and T2-weighted endorectal MRI detected 11 cancer-positive patients (84.6\%). Real-time sonoelastography showed 27 suspicious lesions in 198 sextants, and 15 (55.6\%) were cancer positive. T2-weighted endorectal MRI showed 31 suspicious lesions in 198 sextants, and 13 (40.6\%) were cancer positive. These findings resulted in sensitivity rates and negative predictive values per patient of 84.6\% and 86.7\%, respectively, for sonoelastography and 84.6\% and 83.3\% for MRI. The per-sextant analysis showed sensitivity rates and negative predictive values of 57.7\% and 93.6\% for sonoelastography and 50.0\% and 92.2\% for MRI. CONCLUSIONS: Real-time sonoelastography showed comparable results as T2-weighted endorectal MRI for prostate cancer detection.
This article was published in J Ultrasound Med and referenced in Journal of Medical Diagnostic Methods

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