BACKGROUND Retrosigmoid vestibular neurectomy is considered to be the most effective and safe procedure to control intractable vertigo associated with Ménière's disease while preserving hearing. The surgical procedure of retrosigmoid vestibular neurectomy at the cerebellopontine angle has been well established. Here, we provide for otologic surgeons additional details about the procedure, with ...

BACKGROUND Lymph node micrometastases are important for prognosis and treatment. Their identification in neck dissection specimens with large numbers of nodes is a matter of chance unless serial sectioning or step sectioning at intervals of 200 μm is used, a method which is impractical. MATERIALS AND METHODS For a case of squamous cell laryngeal carcinoma where a micrometastasis was found in ...

The depth resolution for optical sectioning in the scanning transmission electron microscope is measured using the results of optical sectioning experiments of laterally extended objects. We show that the depth resolution depends on the numerical aperture of the objective lens as expected. We also find, however, that the depth resolution depends on the lateral extent of the object that is being...

We report on the recently emerging (laser) light-sheet-based fluorescence microscopy field (LSFM). The techniques used in this field allow to study and visualize biomedical objects nondestructively in high resolution through virtual optical sectioning with sheets of laser light. Fluorescence originating in the cross-section of the sheet and sample is recorded orthogonally with a camera. In this...

This paper describes the fabrication of functional optical devices by sectioning quantum-dot-in-nanowires systems with predefined lengths and orientations. This fabrication process requires only two steps, embedding the nanowires in epoxy and using an ultramicrotome to section them across their axis ("nanoskiving"). This work demonstrates the combination of the following four capabilities: (i) ...

Super-resolution three-dimensional (3D) optical microscopy has incomparable advantages over other high-resolution microscopic technologies, such as electron microscopy and atomic force microscopy, in the study of biological molecules, pathways and events in live cells and tissues. We present a novel approach of structured illumination microscopy (SIM) by using a digital micromirror device (DMD)...

To cite: Periquito IR, Marques T, Lima S, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2014-206553 DESCRIPTION We report the case of a male newborn, the second triplet of non-consanguineous healthy parents, born from a dichorionic triamniotic pregnancy with adequate prenatal care and normal ultrasounds. Spontaneous labour occurred at 32 weeks of gestati...

Kristen M. Harris,1,2,3 Elizabeth Perry,2 Jennifer Bourne,1,2 Marcia Feinberg,3 Linnaea Ostroff,3 and Jamie Hurlburt2,3 1Section of Neurobiology and Center for Learning and Memory, University of Texas at Austin, Austin, Texas 78712, 2Department of Neurology, Synapses, and Cognitive Neuroscience Center, Medical College of Georgia, Augusta, Georgia 30912, 3Program in Neuroscience and Biology Depa...

BACKGROUND Ligament restraints to terminal knee extension are poorly understood. HYPOTHESES (1) As with other motions of the knee, genu recurvatum is limited primarily by a named, identifiable structure. (2) As the largest static structure of the posterior knee, the oblique popliteal ligament is uniquely suited to act as a checkrein to knee hyperextension. STUDY DESIGN Descriptive laborator...

This study examined the effect of tissue section thickness and consistency--parameters outside the direct control of the imaging devices themselves--on WSI capture speed and image quality. Preliminary data indicates that thinner, more consistent tissue sectioning (such as those produced by automated tissue sectioning robots) results in significantly faster WSI capture times and better image qua...