Virtual cystoscopy: the evaluation of bladder lesions with computed tomographic virtual cystoscopy.

Purpose: Our objective was to assess the accuracy of computed tomographic virtual cystoscopy (CTVC) in the detection of urinary bladder lesions.

Methods: Twenty-five patients were examined using CTVC. Bladder scanned using multislice CT at a slice thickness of 1 mm.

Color Doppler twinkling artifact in a calcified liver mass.

Twinkling artifact in color Doppler imaging is related both to the presence of a strongly reflective structure and to the scanner's settings. This artifact has been described in association with calculi and various foreign bodies, but to our knowledge it has not been reported in a hepatic mass. If a calcified hepatic mass is examined with color Doppler Mapping without using spectral Doppler analysis, misinterpreted as real blood flow and lead to the erroneous of hypervascular mass.

[A comparison between findings of high resolution computed tomography and magnetic resonance imaging in the preoperative assessment of cochlear implant patients].

Objectives: We compared the preoperative findings of high resolution computed tomography (HRCT) and magnetic resonance imaging (MRI) with those observed during surgery to determine their value for cochlear implant patients.

Patients And Methods: A retrospective assessment was made on preoperative HRCT and MRI scans of 124 cochlear implant patients (71 males, 53 females; mean age 15 years; range 2 to 63 years). Congenital cochlear anomalies, cochlear ossification, new bone formation in the middle ear, and structures in the internal auditory canal were evaluated and compared with intraoperative findings.