Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Dietmar Stöckl"'
Autor:
Hedwig C M, Stepman, Ulla, Tiikkainen, Dietmar, Stöckl, Hubert W, Vesper, Selvin H, Edwards, Harri, Laitinen, Jonna, Pelanti, Linda M, Thienpont, Marzena, Modzelewska
Publikováno v:
Clinical Chemistry. 60:855-863
BACKGROUNDExternal quality assessment (EQA) with commutable samples is essential for assessing the quality of assays performed by laboratories, particularly when the emphasis is on their standardization status and interchangeability of results.METHOD
Publikováno v:
cclm. 49:253-256
Background: Since the introduction of liquid chromatography-mass spectrometry (LC/MS) for assessing vitamin D status, it has been shown that the C-3 epimer can account for a significant proportion of circulating 25-hydroxyvitamin D3 (25OHD3) concentr
Publikováno v:
Clinica Chimica Acta. 408:8-13
Background The divergence in analytical quality of serum/plasma 25-hydroxy-vitamin D analysis calls for defining specifications for a reference measurement system. Methods Fundamentally, in a reference measurement system, there should be a relationsh
Publikováno v:
Journal of Chromatography B. 877:2180-2190
Analytical method development should aim at delivering reliable measurements within a given application. This implies that method validation is integrated in the development process, because it enables to establish a method's performance capabilities
Autor:
Katleen Van Uytfanghe, Dietmar Stöckl, Linde A.C. De Grande, Kenneth Goossens, Linda M. Thienpont
Publikováno v:
CLINICAL CHEMISTRY AND LABORATORY MEDICINE
Manufacturers and laboratories might benefit from using a modern integrated tool for quality management/assurance. The tool should not be confounded by commutability issues and focus on the intrinsic analytical quality and comparability of assays as
Publikováno v:
Clinical Chemistry. 52:1193-1196
Background: Serum C-peptide concentrations reflect pancreatic function in different clinical and diagnostic settings; however, the utility of C-peptide testing is limited by the lack of standardized commercial immunoassays. Standardization can best b
Autor:
Tom Fiers, Jean-Marc Kaufman, A.P. De Leenheer, K. Van Uytfanghe, Linda M. Thienpont, Dietmar Stöckl
Publikováno v:
Clinical Biochemistry. 38:253-261
Background/Method: The analytical validity of free testosterone (FTe) analog immunoassays is subject to much controversy. We revisited the validation of 4 analog assays and 1 FTe calculation procedure with a metrologically traceable reference measure
Autor:
Linda M. Thienpont, Pål Rustad, Dietmar Stöckl, Thomas Røraas, Gunn B.B. Kristensen, Sverre Sandberg, Sofie K. Van Houcke, Hedwig Stepman
Publikováno v:
Clinical Chemistry. 58:1597-1599
To the Editor: The scope of external quality assessment (EQA)1 in laboratory medicine has evolved considerably (1). With the increasing worldwide interest in the use of common reference intervals and/or medical-decision limits, modern EQA schemes nee
Publikováno v:
Clinical Nephrology. 58:205-210
Aim of the study: Based on data in the literature, it remains unclear whether the ionized fraction of serum total magnesium (Mg) is lower in chronic hemodialysis (HD) patients compared to healthy subjects. Patients and methods: The ionized fraction o
Publikováno v:
Clinical Chemistry and Laboratory Medicine (CCLM). 52
Background: Between-method equivalence ideally is achieved by calibration against an SI-traceable reference measurement procedure. For measurement of thyroid stimulating hormone (TSH), it is unlikely to accomplish this goal in mid-term. Therefore, we