Prostate cancer: accurate determination of extracapsular extension with high-spatial-resolution dynamic contrast-enhanced and T2-weighted MR imaging--initial results.

Purpose: To prospectively compare the sensitivity and specificity of high-spatial-resolution dynamic contrast material-enhanced magnetic resonance (MR) imaging with those of high-spatial-resolution T2-weighted MR imaging, performed with an endorectal coil (ERC), for assessment of extracapsular extension (ECE) and staging in patients with prostate cancer, with histopathologic findings as reference.

Materials And Methods: The study was approved by the institutional internal review board; a signed informed consent was obtained. MR imaging of the prostate at 1.

Prostate postbrachytherapy seed distribution: comparison of high-resolution, contrast-enhanced, T1- and T2-weighted endorectal magnetic resonance imaging versus computed tomography: initial experience.

Purpose: To compare contrast-enhanced, T1-weighted, three-dimensional magnetic resonance imaging (CEMR) and T2-weighted magnetic resonance imaging (T2MR) with computed tomography (CT) for prostate brachytherapy seed location for dosimetric calculations.

Methods And Materials: Postbrachytherapy prostate MRI was performed on a 1.5 Tesla unit with combined surface and endorectal coils in 13 patients.

Potential of dose reduction after marker placement with full-field digital mammography.

Objectives: The purpose of our study was to assess the potential for radiation dose reduction in digital postinterventional digital mammograms after marker placement.

Materials And Methods: One hundred consecutive cases of marker placement (hook-wire localization or postbiopsy clip marker placement), with 200 full-field digital baseline mammograms (craniocaudal and mediolateral), were included in this prospective trial. For the postinterventional digital mammograms, the milliampere seconds were reduced either by 50% or by 75%.

Characterization of benign and malignant breast lesions with computed tomography laser mammography (CTLM): initial experience.

Objectives: The aim of this study was to characterize benign and malignant breast lesions with computed tomography-laser mammography (CTLM).

Materials And Methods: In a prospective study, 100 female patients with 105 breast lesions classified as BIRADS IV to V at mammography underwent mammography, CTLM, and histologic verification at our institution. CTLM images were analyzed by radiologists with knowledge of the lesion's position but who were blinded to histology and morphologic findings from mammography.