Using Small Samples to Evaluate Normative Reference Ranges for Retinal Imaging Measures

Determination of reference ranges using medical laboratory date

In order to have reliable reference ranges and to minimize the effects of variables such as the procedure of specimen collection, geographical location, dietary habits, life style and possible errors during the performance of tests, it  is recommended that each medical laboratory establish it's own reference values. Idealy, the reference ranges Should be determined by analysis of specimens from...

A Description of Reference Ranges for Organic Acids in Urine Samples from A Pediatric Population in Iran

Background: Organic acids refer to a family of compounds that are intermediates in a variety of metabolic pathways. Many organic acids are present in urine from clinically normal individuals. Elevated levels of urine organic acids cause to the organic acidurias, disorders in which some metabolic pathways in organic acid metabolism are blocked. The present work identified major and minor urinary...

Optimal Ranges to Evaluate Sub-pixel Classifcations for Landscape Metrics

Landscape metrics rely on classifications of remote sensing data, and errors inherent to the classification scheme will be propagated into any spatial pattern results. This issue is compounded for metrics derived from sub-pixel unmixing techniques, since a universal method for assessing the certainty of these soft classifications has not yet been accepted. This study investigates the role of su...

Using Imaging Technology to Evaluate Highway Safety

Optical imaging to evaluate retinal activation by electrical currents using suprachoroidal-transretinal stimulation.

PURPOSE To determine whether reflectance changes of the retina after electrical suprachoroidal-transretinal stimulation (STS) can be detected with a newly developed optical imaging fundus camera. METHODS Ten eyes of 10 cats were studied. A small retinal area was focally stimulated with electric currents passing between an active electrode placed in the fenestrated sclera and a reference elect...