An introduction to RF testing: device, method and system

2002 ◽  
Author(s):  
J.S. Kasten ◽  
B. Kaminska
Keyword(s):  
Testing Device ◽  
Rf Testing

Determination of the International Sensitivity Index of a New Near-Patient Testing Device to Monitor Oral Anticoagulant Therapy

1997 ◽  
Vol 78 (02) ◽  
pp. 855-858 ◽  
Author(s):  
Armando Tripodi ◽  
Veena Chantarangkul ◽  
Marigrazia Clerici ◽  
Barbara Negri ◽  
Pier Mannuccio Mannucci
Keyword(s):  
Linear Relationship ◽  
Whole Blood ◽  
Oral Anticoagulant ◽  
Oral Anticoagulant Therapy ◽  
Oral Anticoagulants ◽  
Calibration Model ◽  
Testing Device ◽  
Data Points ◽  
Near Patient Testing

SummaryA key issue for the reliable use of new devices for the laboratory control of oral anticoagulant therapy with the INR is their conformity to the calibration model. In the past, their adequacy has mostly been assessed empirically without reference to the calibration model and the use of International Reference Preparations (IRP) for thromboplastin. In this study we reviewed the requirements to be fulfilled and applied them to the calibration of a new near-patient testing device (TAS, Cardiovascular Diagnostics) which uses thromboplastin-containing test cards for determination of the INR. On each of 10 working days citrat- ed whole blood and plasma samples were obtained from 2 healthy subjects and 6 patients on oral anticoagulants. PT testing on whole blood and plasma was done with the TAS and parallel testing for plasma by the manual technique with the IRP CRM 149S. Conformity to the calibration model was judged satisfactory if the following requirements were met: (i) there was a linear relationship between paired log-PTs (TAS vs CRM 149S); (ii) the regression line drawn through patients data points, passed through those of normals; (iii) the precision of the calibration expressed as the CV of the slope was <3%. A good linear relationship was observed for calibration plots for plasma and whole blood (r = 0.98). Regression lines drawn through patients data points, passed through those of normals. The CVs of the slope were in both cases 2.2% and the ISIs were 0.965 and 1.000 for whole blood and plasma. In conclusion, our study shows that near-patient testing devices can be considered reliable tools to measure INR in patients on oral anticoagulants and provides guidelines for their evaluation.

scholarly journals B-PO04-061 A NOVEL HIGH FREQUENCY LEAD INTEGRITY TESTING DEVICE DETECTS ICD LEAD INSULATION BREACHES

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S303
Author(s):  
Jayasree Pillarisetti ◽  
Aleksandra Gruslova ◽  
John E. Porterfield ◽  
Marc D. Feldman ◽  
Anil G. Kottam ◽  
...  
Keyword(s):  
High Frequency ◽  
Testing Device ◽  
Integrity Testing

scholarly journals Evaluating objective measures of impairment to trunk strength and control for cross-country sit skiing

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
Valeria Rosso ◽  
Vesa Linnamo ◽  
Yves Vanlandewijck ◽  
Walter Rapp ◽  
Benedikt Fasel ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Effect Size ◽  
Balance Control ◽  
Control Measures ◽  
Objective Measures ◽  
Testing Device ◽  
Trunk Control ◽  
Cross Country ◽  
And Control ◽  
Trunk Strength

AbstractIn Paralympic cross-country sit skiing, athlete classification is performed by an expert panel, so it may be affected by subjectivity. An evidence-based classification is required, in which objective measures of impairment must be identified. The purposes of this study were: (i) to evaluate the reliability of 5 trunk strength measures and 18 trunk control measures developed for the purposes of classification; (ii) to rank the objective measures, according to the largest effects on performance. Using a new testing device, 14 elite sit-skiers performed two upright seated press tests and one simulated poling test to evaluate trunk strength. They were also subjected to unpredictable balance perturbations to measure trunk control. Tests were repeated on two separate days and test–retest reliability of trunk strength and trunk control measures was evaluated. A cluster analysis was run and correlation was evaluated, including all strength and control measures, to identify the measures that contributed most to clustering participants. Intraclass correlations coefficients (ICC) were 0.71 < ICC < 0.98 and 0.83 < ICC < 0.99 for upright seated press and perturbations, respectively. Cluster analysis identified three clusters with relevance for strength and balance control measures. For strength, in upright seated press peak anterior pushing force without backrest (effect size = 0.77) and ratio of peak anterior pushing force without and with backrest (effect size = 0.72) were significant. For balance control measures, trunk range of motion in forward (effect size = 0.81) and backward (effect size = 0.75) perturbations also contributed. High correlations (− 0.76 < r < − 0.53) were found between strength and control measures. The new testing device, protocol, and the cluster analysis show promising results in assessing impairment of trunk strength and control to empower an evidence-based classification.

Fr248 EXHALED HYDROGEN SULFIDE IS INCREASED IN PATIENTS WITH DIARRHEA: RESULTS OF A NOVEL COLLECTION AND BREATH TESTING DEVICE

2021 ◽  
Vol 160 (6) ◽  
pp. S-278
Author(s):  
Mark Pimentel ◽  
Ava Hosseini ◽  
Christine Chang ◽  
Ruchi Mathur ◽  
Mohamad Rashid ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Testing Device ◽  
Breath Testing
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