Prostate cancer in PI-RADS scores 1 and 2 version 2.1: a comparison to previous PI-RADS versions.

Purpose: To evaluate the validity of PI-RADS categories 1 and 2 version 2.1 (V2.1) as predictors of the absence of carcinoma and to reevaluate lesions that were analysed as suspicious prior to PI-RADS or according to PI-RADS versions 1 and 2 and classified as PI-RADS 1 or 2 in V2.

Impact of magnetic resonance imaging-guided prostate biopsy in the supine position on the detection of significant prostate cancer in an inhomogeneous patient cohort.

Objective: The aim of this study was to determine the tumour detection rate of magnetic resonance-guided biopsy (MRGB) in the supine position for significant prostate cancer in an inhomogeneous patient cohort.

Materials And Methods: Thirty-two consecutive patients with a total prostate-specific antigen > 4 ng/ml and/or a tumour-suspicious palpable lesion upon digital rectal examination and a cancer-suspicious region in multiparametric magnetic resonance imaging (MRI) underwent MRGB in a standard 1.5 T magnet.

How good is post-biopsy multiparametric magnetic resonance imaging in detecting and characterising the index lesion of localised prostate cancer?

Objective: The aim of this study was to evaluate the accuracy of multiparametric endorectal magnetic resonance imaging (mp-MRI) in detecting and characterising the largest tumour lesion, which is defined as the index tumour of prostate cancer.

Material And Methods: A total of 55 patients with proven histological prostate cancer underwent post-biopsy MRI at 1.5 T and subsequent radical prostatectomy.

In vitro and in vivo comparison of egg yolk-based and soybean lecithin-based extenders for cryopreservation of bovine semen.

Semen diluents containing egg yolk as a cryoprotectant may pose hygienic risks and are difficult to standardize. Although a new generation of semen diluents free of animal ingredients is available, egg yolk-containing extenders are still widely used for cryopreserving semen. We compared the effects of using different extenders on bovine sperm function in vitro and on fertility in vivo.