Observer Variation
Research News and Information

Saturday, November 21, 2009

Evaluation of transcutaneous CO2 responses following acute changes in PaCO2 in healthy subjects.

14 Dec 2009 BACKGROUND AND OBJECTIVE: Transcutaneous blood gas-monitoring systems with miniaturized SpO(2) (peripheral blood oxygen saturation)/PCO(2) combined sensors (TOSCATM) have been widely used. There are no reports of the inter- and intra-individual ... Read more...

Real-time myocardial perfusion contrast echocardiography and regional wall motion abnormalities after aneurysmal subarachnoid hemorrhage. Clinical article.

30 Oct 2009 OBJECT: The pathophysiology of myocardial dysfunction after subarachnoid hemorrhage (SAH) remains unclear. Using myocardial real-time perfusion contrast echocardiography (RTP-CE), the authors evaluated microvascular function in patients with acute ... Read more...

Determination of the anaerobic threshold in the pre-operative assessment clinic: inter-observer measurement error.

30 Oct 2009 The variability between observers in the interpretation of cardiopulmonary exercise tests may impact upon clinical decision making and affect the risk stratification and peri-operative management of a patient. The purpose of this study was to ... Read more...

Latest indexed articles for 'Observer Variation'

These are the very latest articles for this heading:

• Evaluation of transcutaneous CO2 responses following acute changes in PaCO2 in healthy subjects. 14 Dec 2009
• Donepezil treatment of patients with MCI: a 48-week randomized, placebo- controlled trial. Nov 2009
• Real-time myocardial perfusion contrast echocardiography and regional wall motion abnormalities after aneurysmal subarachnoid hemorrhage. Clinical article. 30 Oct 2009
• Determination of the anaerobic threshold in the pre-operative assessment clinic: inter-observer measurement error. 30 Oct 2009
• Inter-rater reliability of manual QT measurement and prediction of abnormal QT,HR pairs. 30 Oct 2009
• Evaluation of venous invasion by Elastica van Gieson stain and tumor budding predicts local and distant metastases in patients with T1 stage colorectal cancer. 30 Oct 2009
• Reproducibility of color Doppler imaging. 30 Oct 2009
• Risk of bias versus quality assessment of randomised controlled trials: cross sectional study. 17 Oct 2009
• Lung-cancer staging with PET-CT. 13 Oct 2009
• Treatment with GH in adults with GH deficiency. Foreword. 4 Oct 2009
• Hypertension correlates with lenticulostriate arteries visualized by 7T magnetic resonance angiography. 3 Oct 2009
• Reflectance confocal microscopy and features of melanocytic lesions: an internet-based study of the reproducibility of terminology. 29 Sep 2009
• Observer bias and the detection of low-density populations. 29 Sep 2009
• Cervical vertebrae maturation method: poor reproducibility. 29 Sep 2009
• Accuracy of cross-table lateral knee radiography for evaluation of joint effusions. 29 Sep 2009
• Direct measurement of vena contracta area by real-time 3-dimensional echocardiography for assessing severity of mitral regurgitation. 29 Sep 2009
• Emerging technologies for assessing HER2 amplification. 29 Sep 2009
• Chromogenic in situ hybridization: a multicenter study comparing silver in situ hybridization with FISH. 29 Sep 2009
• How to validate outcome instruments for pemphigus. 29 Sep 2009
• Characterizing radiology reports in patients with frontotemporal dementia. 27 Sep 2009

See a longer list of these articles.

Technical information about 'Observer Variation'

Definition: The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).

Descriptor UI: D015588

Alternative terms: Observer Variation; Observer Variations; Variation, Observer; Variations, Observer; Bias, Observer; Observer Bias; Intraobserver Variation; Intraobserver Variations; Variation, Intraobserver; Variations, Intraobserver; Intra-Observer Variation; Intra Observer Variation; Intra-Observer Variations; Variation, Intra-Observer; Variations, Intra-Observer; Intraobserver Variability; Intraobserver Variabilities; Variabilities, Intraobserver; Variability, Intraobserver; Intra-Observer Variability; Intra Observer Variability; Intra-Observer Variabilities; Variabilities, Intra-Observer; Variability, Intra-Observer; Interobserver Variation; Interobserver Variations; Variation, Interobserver; Variations, Interobserver; Inter-Observer Variation; Inter Observer Variation; Inter-Observer Variations; Variation, Inter-Observer; Variations, Inter-Observer; Interobserver Variability; Interobserver Variabilities; Variabilities, Interobserver; Variability, Interobserver; Inter-Observer Variability; Inter Observer Variability; Inter-Observer Variabilities; Variabilities, Inter-Observer; Variability, Inter-Observer;

Tree Number: E01.354.753; N02.421.450.600; N05.715.350.150.675; N06.850.490.500.250; N06.850.490.750;

History Note: 90

Technical Notes: IM GEN only; coord NIM with disease /epidemiol (IM) or specific non-disease term /statist (IM); no qualif; specify geog if pertinent