Spectacular rediscovery of the original prints of radiographs Roentgen sent to Lorentz in 1896.

Background: Ninety years after the Dutch theoretical physicist H.A. Lorentz died, detailed investigation of his scientific heritage yielded the set of nine original prints of radiographs that W.

Age and gender-specific reference values of orbital fat and muscle volumes in Caucasians.

Aim: To provide age and gender-specific reference values for orbital fat and muscle volumes (MV) in Caucasian adults.

Patients And Methods: Computed tomographic scans of 160 orbits from 52 men and 55 women, aged 20-80 years, not affected by orbital disease were evaluated. Orbital bony cavity volume (OV), fat volume (FV) and MV were calculated by a previously validated method using the software program Mimics.

A new and validated CT-based method for the calculation of orbital soft tissue volumes.

Purpose: There is no consensus as how to calculate orbital soft tissue volume based on CT or MRI scans. The authors sought to validate their technique and to assess the intraobserver and interobserver variability of their calculations of bony orbital volume (OV), orbital fat volume (FV), and extraocular muscle volume (MV) on CT scans of humans.

Methods: The authors calculated these volumes with the use of a manual segmentation technique on CT scans with commercially available software.

Preoperative imaging protocol for cochlear implant candidates.

Objective: To formulate and test a CT imaging protocol for preoperative scanning of the temporal bone in cochlear implant candidates.

Material And Methods: A human head was scanned in three CT planes: axial, axiopetrosal and semilongitudinal. Multiplanar reformats (MPRs), based on axial slices, were created and compared with the corresponding images obtained by direct scanning in the respective planes.

MRI versus CT in assessment of cochlear patency in cochlear implant candidates.

Objective: To investigate how cochlear patency as seen on preoperative CT and MRI scans correlates with findings at surgery in cochlear implant patients.

Material And Methods: CT and MRI scans of 25 patients were reviewed by 3 independent observers. The reviewers classified the cochlear patency and recorded the location of any suspected decrease in patency.