High and ultra-high b-value diffusion-weighted imaging in prostate cancer: a quantitative analysis.

Background: Diffusion-weighted imaging (DWI) is routinely used in magnetic resonance imaging (MRI) of prostate cancer. However, the routine use of b values higher than 1000 s/mm(2) is not clear up to present. Moreover, the complex diffusion behavior of malignant and benign prostate tissues hampers precise predictions of contrast in DWI images and apparent diffusion coefficient (ADC) maps.

Simultaneous 18F choline positron emission tomography/magnetic resonance imaging of the prostate: initial results.

Purpose: The purposes of this study were to evaluate the feasibility of simultaneous 18F choline positron emission tomography (PET) and magnetic resonance imaging (MRI) of the prostate and to present the first clinical results of the method.

Materials And Methods: From March 2012 to October 2012, a total of 15 consecutive patients were examined with simultaneous 18F choline PET/MRI. At the time of the examination, 8 patients had histologically proven prostate cancer, 2 patients had repeated prostate biopsies with negative results, and 5 patients had suspected prostate cancer with an elevated or rising prostate specific antigene level but did not have a prostate biopsy.

[Photodynamic diagnostics of bladder carcinoma].

The question whether conventional cystoscopy should always be performed together with fluorescent diagnostic procedures remains to be answered. The current article presents the current literature dealing with this topic. Particularly for relevant carcinoma in situ lesions of the bladder there is no obvious advantage for photodynamic diagnostics compared to conventional cystoscopy with consistent use of urine cytology.

Influence of coronary artery bypass surgery on thyroid hormone parameters.

Unlabelled: The postoperative period after cardiac surgery with cardiopulmonary bypass (CPB) is associated with a low T3 syndrome, i.e. low T3 and fT3 concentrations in the presence of normal T4 and TSH concentrations.