1.The Correlation between Relative Renal Uptake of (99m)Tc-DMSA Renal Scan and Glomerular Filtration Rate in Patients with Reduced Renal Function.
Seoung Jae AN ; Yoo Suck JUNG ; Hyun Chul JUNG ; Soo Bong LEE ; Ihm Soo KWAK ; Ha Yeon RHA
Korean Journal of Nephrology 2002;21(4):602-609
BACKGROUND: Glomerular filtration rate(GFR) is an important parameter for the evaluation and monitoring of renal function. The aim of this study was to investigate the correlation between the relative 1 hour uptake of (99m)Tc-DMSA renal scan(DMSA- %uptake, TRUR) and GFR which was estimated by (99m)Tc-DTPA, serum creatinine and 24 hour-urinary creatinine excretion. METHODS: Between January 1998 and March 2001, 65 patients had undergone (99m)Tc-DMSA renal scan, (99m)Tc-DTPA renal scan, serum creatinine and 24 hour-urinary creatinine excretion. Of them, 42 patients had moderately or severely reduced renal function(DTPA-GFR
Creatinine
;
Filtration
;
Glomerular Filtration Rate*
;
Humans
;
Male
2.Methods for Glomerular Filtration Rate Measurement.
Korean Journal of Nephrology 2006;25(4):521-524
No abstract available.
Glomerular Filtration Rate*
3.Determination of Representative Renal Depth for Accurate Attenuation Correction in Measurement of Glomerular Filtration Rate in Transplanted Kidney.
Soon Nam OH ; Sung Hoon KIM ; Sung Eun RHA ; Yong An CHUNG ; Sung Young LEE ; Ie Ryung YOO ; Hyung Sun SOHN ; Soo Kyo CHUNG
Korean Journal of Nuclear Medicine 2002;36(4):271-276
No abstract available.
Glomerular Filtration Rate*
;
Kidney*
5.Correlation between microleakage and screw loosening at implant-abutment connection.
The Journal of Advanced Prosthodontics 2014;6(1):35-38
PURPOSE: This study aimed to evaluate the correlation between microleakage and screw loosening at different types of implant-abutment connections and/or geometries measuring the torque values before and after the leakage tests. MATERIALS AND METHODS: Three different abutment types (Intenal hex titanium, internal hex zirconium, morse tapered titaniuim) with different geometries were connected to its own implant fixture. All the abutments were tightened with a standard torque value then the composition was connected to the modified fluid filtration system. After the measurements of leakage removal torque values were re-measured. Kruskal-wallis test was performed for non-parametric and one-way ANOVA was performed for parametric data. The correlation was evaluated using Spearman Correlation Test (alpha=0.05). RESULTS: Significantly higher microleakage was found at the connection of implant-internal hex zirconium abutment. Observed mean torque value loss was also significantly higher than other connection geometries. Spearman tests revealed a significant correlation between microleakage and screw loosening. CONCLUSION: Microleakage may provoke screw loosening. Removing torque values rationally decrease with the increase of microleakage.
Filtration
;
Titanium
;
Torque
;
Zirconium
6.Performance comparison of estimated glomerular filtration rate equations.
Kidney Research and Clinical Practice 2014;33(3):168-169
No abstract available.
Glomerular Filtration Rate*
7.Estimation of glomerular filtration rate using 99mTc-DTPA and gammascintillation camera.
Jae Gol CHOE ; Sei Hyun BAIK ; Min Jae LEE ; Won Hyuck SUH
Korean Journal of Nuclear Medicine 1992;26(1):95-100
No abstract available.
Glomerular Filtration Rate*
8.To assess the duty filtration efficace of CT-2002 mouth cover, using electronic microscope
Journal of Practical Medicine 2003;469(12):31-33
CT-2002 air filtering mouth mask Vietnam producted was studied on electronic microscope concerning the structure, the convenience and the efficacy of dust filtering. Results showed that its efficacy reached 85-87% in an air flow of 30 liters/minute but in the flow of 95 liter/minute, the efficacy reduced to 44-46%. The evaluation of efficacy was performed similarly to American and Japanese NIOSH method
Mouth
;
Filtration
;
air
9.Measurement of glomerular filtration rate with radionuclide plasma clearence method.
Kang Wook LEE ; Young Tai SHIN
Korean Journal of Nephrology 1993;12(1):36-43
No abstract available.
Glomerular Filtration Rate*
;
Plasma*
10.Adequate Change Interval of Transfusion Kits during Rapid Transfusion.
Nam Kyu KANG ; Jiyeon SIM ; Wonsik AHN
Korean Journal of Blood Transfusion 2014;25(1):18-27
BACKGROUND: For a rapid transfusion, pressure is sometimes applied to packed red blood cells during the operation. However, there are neither standard guidelines nor reported data regarding adequate change interval of transfusion kits. The aim of this study is to present relevant data by simulating a surgical situation. METHODS: Each unit of packed red blood cells was mixed with 50 mL of normal saline. Pressure (250 mmHg) was applied to the mixed red blood cells. Each filtration time was measured without change of the transfusion kit. The weight of the mixed red blood cells was measured before and after administration. The passed blood was examined microscopically for detection of possible microaggregation. Eight transfusion sets were tested with 70 packed red blood cells. RESULTS: International guidelines have recommended replacement of the transfusion set if flow rate decreased to less than 100 mL/min. The flow rate of five transfusion sets was recorded as less than 100 mL/min. The flow rate of the third packed red blood cells decreased to less than 100 mL/min. No microaggregate was detected. CONCLUSION: Therefore, we recommended replacement of the blood filter after filtering two units of packed red blood cells with pressure under operation room circumstances.
Erythrocyte Transfusion
;
Erythrocytes
;
Filtration