- Recent Trends in Creatinine Assays in Korea: LongTerm Accuracy-Based Proficiency Testing Survey Data by the Korean Association of External Quality Assessment Service (2011–2019)
-
Jeong TD, Cho EJ, Lee K, Lee W, Yun YM, Chun S, Song J, Min WK
- KMID: 2512716
- Ann Lab Med.
- 2021 Jul;41(4):372-379.
- doi: 10.3343/alm.2021.41.4.372
Background: Accurate serum creatinine (Cr) concentration measurement is essential for evaluating kidney function. In 2011, the Korean Association of External Quality Assessment Service (KEQAS) launched an accuracy-based Cr proficiency testing... -
- CITED
-
- Close
- SHARE
-
- Close
- Application of Six Sigma Metrics to Improve Quality Control for Point-of-care Glucose Testing
-
Park S, Lee W, Jeong TD, Chung HS, Hong KS
- KMID: 2505143
- Ewha Med J.
- 2020 Jul;43(3):43-48.
- doi: 10.12771/emj.2020.43.3.43
Objectives: Six sigma is a quality management system for the assessment of precisionand accuracy. We aim to apply the six sigma rule to quality control (QC) of point-of-care(POC) glucose meters... -
- CITED
-
- Close
- SHARE
-
- Close
- Report of the Korean Association of External Quality Assessment Service on Therapeutic Drug Monitoring and Toxicology (2015–2019)
-
Kim HK, Ko DH, Jeong TD, Shin ES, Kim JH, Chun S
- KMID: 2510300
- Lab Med Qual Assur.
- 2020 Dec;42(4):183-193.
- doi: 10.15263/jlmqa.2020.42.4.183
Korean Association of External Quality Assessment Service offered to conduct a proficiency test program for therapeutic drug monitoring (TDM) and testing drugs of abuse (DOA), which was named as the... -
- CITED
-
- Close
- SHARE
-
- Close
- A Clue to Discovering Unstable Hemoglobin Variants via Abnormal WBC Differential Scattergrams Using the Sysmex Automated Hematology Analyzer
-
Park S, Jeong TD, Hong KS, Huh J
- KMID: 2441828
- Lab Med Online.
- 2019 Apr;9(2):84-87.
- doi: 10.3343/lmo.2019.9.2.84
Incidentally, hemoglobin (Hb) variants can be detected using HbA1c tests in clinical laboratories. We found 38 patients with Hb variants after reviewing a total of 29,398 HbA1c test results from... -
- CITED
-
- Close
- SHARE
-
- Close
- Effects of Pre-analytical Variables on Cell-free DNA Extraction for Liquid Biopsy
-
Jeong TD, Kim MH, Park S, Chung HS, Lee JW, Chang JH, Huh J
- KMID: 2441823
- Lab Med Online.
- 2019 Apr;9(2):45-56.
- doi: 10.3343/lmo.2019.9.2.45
BACKGROUND: Extraction of cell-free DNA (cfDNA) is a key step for determining the quality of cfDNA-related molecular diagnostics. We evaluated the effect of sample containers and sample storage conditions on... -
- CITED
-
- Close
- SHARE
-
- Close
- Accuracy-Based Proficiency Testing of Creatinine Measurement: 7 Years' Experience in Korea
-
Jeong TD, Lee HA, Lee K, Yun YM
- KMID: 2446694
- J Lab Med Qual Assur.
- 2019 Mar;41(1):13-23.
- doi: 10.15263/jlmqa.2019.41.1.13
BACKGROUND: Standardization of creatinine assay is consistently performed and much effort has been put into improving the accuracy of the results. We aimed to analyze the results of accuracy-based proficiency... -
- CITED
-
- Close
- SHARE
-
- Close
- Estimated Glomerular Filtration Rates Show Minor but Significant Differences Between the Single and Subgroup Creatinine-Based Chronic Kidney Disease Epidemiology Collaboration Equations
-
Park S, Jeong TD
- KMID: 2425977
- Ann Lab Med.
- 2019 Mar;39(2):205-208.
- doi: 10.3343/alm.2019.39.2.205
The creatinine-based Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation can be calculated according to race, sex, and creatinine concentration (subgroup equation) or in the form expressed by one equation (single... -
- CITED
-
- Close
- SHARE
-
- Close
- Current Status of Estimated Glomerular Filtration Rate Reporting in Korea
-
Kim SK, Jeong TD, Park S, Lee YW, Min WK
- KMID: 2470320
- Lab Med Qual Assur.
- 2019 Dec;41(4):201-206.
- doi: 10.15263/jlmqa.2019.41.4.201
BACKGROUND: We aimed to investigate the current status of estimated glomerular filtration rate (eGFR) reporting in clinical laboratories for the first time in Korea. METHODS: The eGFR proficiency testing data obtained... -
- CITED
-
- Close
- SHARE
-
- Close
- Evaluation of the 1B Equation to Estimate Glomerular Filtration Rate in Pediatric Patients with Cancer
-
Jeong TD, Kim J, Lee W, Chun S, Hong KS, Min WK
- KMID: 2403461
- Ann Lab Med.
- 2018 May;38(3):261-265.
- doi: 10.3343/alm.2018.38.3.261
The 1B equation is recommended for calculating the glomerular filtration rate (GFR) in children. Since few reports have evaluated the performance of the 1B equation, we investigated the performance of... -
- CITED
-
- Close
- SHARE
-
- Close
- Plasma Neutrophil Gelatinase-Associated Lipocalin as a Marker of Tubular Damage in Diabetic Nephropathy
-
Kim SY, Jeong TD, Lee W, Chun S, Sunwoo S, Kim SB, Min WK
- KMID: 2429117
- Ann Lab Med.
- 2018 Nov;38(6):524-529.
- doi: 10.3343/alm.2018.38.6.524
BACKGROUND: An increase in neutrophil gelatinase-associated lipocalin (NGAL) indicates tubular injury. Diabetic nephropathy causes typical changes in the kidney, characterized by glomerulosclerosis and eventual tubular damage. We validated the usefulness... -
- CITED
-
- Close
- SHARE
-
- Close
- Performance Evaluation of the Point-of-Care Cardiac Troponin T Assay
-
Kim YH, Jeong TD, Hong KS
- KMID: 2421003
- Lab Med Online.
- 2018 Oct;8(4):135-139.
- doi: 10.3343/lmo.2018.8.4.135
BACKGROUND: The point-of-care (POC) troponin T assay has been used in various clinical settings. Recently, a POC troponin T assay with an extended measurable range (40 ng/L-2,000 ng/L) was introduced.... -
- CITED
-
- Close
- SHARE
-
- Close
- Intactness of Medical Nonsterile Gloves on Use of Alcohol Disinfectants
-
Chang J, Jeong TD, Lee S, Kim Y, Lee J, Lee HK, Kwon HJ
- KMID: 2397611
- Ann Lab Med.
- 2018 Jan;38(1):83-84.
- doi: 10.3343/alm.2018.38.1.83
No abstract available. -
- CITED
-
- Close
- SHARE
-
- Close
- Accuracy Assessment of Five Equations Used for Estimating the Glomerular Filtration Rate in Korean Adults
-
Jeong TD, Cho EJ, Lee W, Chun S, Hong KS, Min WK
- KMID: 2383912
- Ann Lab Med.
- 2017 Sep;37(5):371-380.
- doi: 10.3343/alm.2017.37.5.371
BACKGROUND: We aimed to assess the performance of the five creatinine-based equations commonly used for estimates of the glomerular filtration rate (eGFR), namely, the creatinine-based Chronic Kidney Disease Epidemiology Collaboration... -
- CITED
-
- Close
- SHARE
-
- Close
- Prognostic Implications of Elevated Cardiac Troponin T in Patients with Acute Ischemic Stroke
-
Jung CL, Jeong TD, Hong KS
- KMID: 2363003
- Lab Med Online.
- 2017 Jan;7(1):28-33.
- doi: 10.3343/lmo.2017.7.1.28
BACKGROUND: Elevated cardiac troponin T (cTnT) levels have been reported in patients with acute ischemic stroke, however, the prognostic relevance is not well established. We evaluated the association between cTnT... -
- CITED
-
- Close
- SHARE
-
- Close
- Prognostic relevance of the Ki-67 proliferation index in patients with mantle cell lymphoma
-
Jeong TD, Chi HS, Kim MS, Jang S, Park CJ, Huh JR
- KMID: 2309215
- Blood Res.
- 2016 Jun;51(2):127-132.
- doi: 10.5045/br.2016.51.2.127
BACKGROUND: A high Ki-67 proliferation index (PI) in neoplastic cells is associated with poor survival in mantle cell lymphoma (MCL). We aimed to determine the cut-off values for the Ki-67... -
- CITED
-
- Close
- SHARE
-
- Close
- Role of Soluble ST2 as a Prognostic Marker in Patients with Acute Heart Failure and Renal Insufficiency
-
Kim MS, Jeong TD, Han SB, Min WK, Kim JJ
- KMID: 2155469
- J Korean Med Sci.
- 2015 May;30(5):569-575.
- doi: 10.3346/jkms.2015.30.5.569
This study sought to assess the relationship between serum concentrations of the soluble ST2 (sST2) and B-type natriuretic peptide (BNP) and investigate the role of sST2 as a prognosticator in... -
- CITED
-
- Close
- SHARE
-
- Close
- Performance Evaluation of the Elecsys Neuron-Specific Enolase Assay
-
Kim SK, Jeong TD, Lee W, Chun S, Min WK
- KMID: 2312277
- Lab Med Online.
- 2015 Apr;5(2):63-68.
- doi: 10.3343/lmo.2015.5.2.63
BACKGROUND: Neuron-specific enolase (NSE) is an enzyme specifically found in neurons and neuroendocrine tissue. It is a common marker for small cell lung cancer diagnosis and is also useful as... -
- CITED
-
- Close
- SHARE
-
- Close
- Comparison of Red Blood Cell Hemolysis Using Plasma and Serum Separation Tubes for Outpatient Specimens
-
Ko DH, Won D, Jeong TD, Lee W, Chun S, Min WK
- KMID: 2363178
- Ann Lab Med.
- 2015 Mar;35(2):194-197.
- doi: 10.3343/alm.2015.35.2.194
BACKGROUND: To rapidly obtain outpatient results, we use plasma separation tubes (PST) for chemistry analysis. If lactate dehydrogenase measurement is required, serum separation tubes (SST) are used. There has been... -
- CITED
-
- Close
- SHARE
-
- Close
- Annual Report on the External Quality Assessment Scheme for Therapeutic Drug Monitoring and Testing for Drugs of Abuse in Korea (2014)
-
Ko DH, Jeong TD, Gu GG, Chun S, Kim JH, Therapeutic Drug Monitoring Subcommittee, The Korean Association of Quality Assurance for Clinical Laboratories
- KMID: 1789358
- J Lab Med Qual Assur.
- 2015 Mar;37(1):12-22.
- doi: 10.15263/jlmqa.2015.37.1.12
As the Therapeutic Drug Monitoring Subcommittee (TDMS) of the Korean Association of Quality Assurance for Clinical Laboratories (KAQACL), we organised two trials as an external quality assessment of therapeutic drug... -
- CITED
-
- Close
- SHARE
-
- Close
- Performance Evaluation of the ARCHITECT HE4 Assay
-
Cho EJ, Ko DH, Jeong TD, Lee W, Chun S, Min WK
- KMID: 2200411
- J Lab Med Qual Assur.
- 2014 Sep;36(3):149-156.
- doi: 10.15263/jlmqa.2014.36.3.149
BACKGROUND: Human epididymis protein 4 (HE4) is known to be overexpressed in ovarian cancer, and therefore, it can be considered an important biomarker of epithelial ovarian cancer. HE4 shows higher... -
- CITED
-
- Close
- SHARE
-
- Close
