Prostate cancer: relationships between postbiopsy hemorrhage and tumor detectability at MR diagnosis.

Purpose: To retrospectively evaluate the influence of postbiopsy hemorrhage on the accuracy of tumor detection at T2-weighted magnetic resonance (MR) imaging, dynamic contrast material-enhanced MR imaging, and diffusion-weighted (DW) MR imaging of prostate cancer, with histologic findings as the reference standard.

Materials And Methods: The institutional review board approved this study and waived the requirement for informed consent. Forty male patients aged 62-84 years (mean age, 71 years) who had prostate cancer underwent MR imaging of the prostate gland after ultrasonographically (US) guided systematic 12-core-specimen biopsy.

Age-related and zonal anatomical changes of apparent diffusion coefficient values in normal human prostatic tissues.

Purpose: To identify age-related changes and differences in the diffusion of water molecules within the prostate, through diffusion-weighted imaging (DWI) of the prostate gland in healthy adult Japanese men.

Materials And Methods: A total of 114 healthy male volunteers (mean age, 55 years; range, 24-81 years) underwent DWI of the prostate with a single-shot echo-planar imaging (EPI) sequence using b-factors of 0 and 1000 seconds/mm(2). Apparent diffusion coefficient (ADC) values of six locations in the peripheral zone (PZ) and two locations in the central gland (CG) were measured and correlations between region and age were examined.

Transradial approach for noncoronary angiography and interventions.

Purpose: The purpose of this study was to retrospectively evaluate the feasibility and safety of a transradial approach for non-coronary angiography and interventions.

Background: Generally, the transradial approach is used for coronary angiography and intervention around the world, and experiences have been widely reported. However, few large studies have examined the transradial approach for vessels other than the coronary or cerebral artery.