PubMed HealthSearch

PubMed · 9243075

Specialized imaging techniques.

Abstract

The foregoing discussion has presented a summary of many of the optical microscopic methods in use by researchers and clinicians. Along with emerging technologies, such as laser tweezers and scissors, which are outside the scope of this review, the methodologies discussed here ensure that the optical microscope will remain a central tool for biomedical research.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

L Van de Water. 1997. Specialized imaging techniques.. https://pubmed.ncbi.nlm.nih.gov/9243075/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Simultaneous multispectral imaging in the visible and near-infrared region: applications in document authentication and determination of chemical inhomogeneity of copolymers.

A new multispectral imaging spectrometer capable of simultaneously recording spectral images in the visible and near-infrared has been developed. In this instrument, an acoustooptic tunable filter is used to diffract an unpolarized incident light into two diffracted beams with orthogonal polarization; one of them is detected by a silicon camera for the visible region while the other beam is detected in the near-infrared region (from 1 to 1.7 microns) with a NIR camera. The imaging spectrometer is sensitive, inexpensive, and field deployable because it is based on the recently available InGaAs focal plane arrays camera, which is low cost and can be sensitively operated at room temperature. Preliminary applications of the imaging spectrometer include measurements of the visible and NIR absorption spectra of ink used to print U.S. currency. Such results may help to characterize samples as well as to control and to ensure the quality of the samples during the production processes. More important are the results obtained on ethylene/vinyl acetate copolymers. The NIR spectral images obtained clearly indicate that these copolymers exhibit a high degree of chemical inhomogeneity. Because of the possibility of inhomogeneity, it is very important that the homogeneity of polymers or copolymers be thoroughly understood before the NIR methods, especially those based on NIR spectrometers equipped with a single-element detector, are used for measurements.

Diagnostic Imaging

[Importance of endocrine imaging methods in multiple endocrine neoplasia type 2A proved by mutation analysis].

Multiple endocrine neoplasias are rare, inherited disorders. The authors describe a case history of a patient with multiple endocrine neoplasia type 2A, who presented with unusual clinical manifestations. The diagnosis of phaeochromocytoma, which was the first manifestation of the disorder, was greatly facilitated with radiologic imaging methods. The authors review, on the basis of recent data from the literature, the importance of radiologic methods, which improved due to methodological advance. Finally, the authors emphasize the importance of follow-up for early diagnosis.

Diagnostic Imaging

[Clinical evaluation of knee trauma].

Clinical evaluation is of preponderant importance in the management of knee trauma. This evaluation is based on a systematic examination that should be well known to any practitioner treating such patients. During recent years, the symptomatology of knee trauma has required a large number of manipulations and clinical tests that can better identify the location and nature of anatomic lesions and specify their severity. The most important of these clinical signs and their pathological significance are presented in this study. Analysis of the symptoms, with grouping and concordance of the different tests, classifies the knee as having suffered "ligament", "patella", "meniscal" or other injury. Despite its limitations and sometimes too schematic nature, this classifications is highly informative and in most cases should be an indispensible step before prescribing radiology.

Diagnostic Imaging