Comparison of methods for determination of glomerular filtration rate: Tc-99m-DTPA renography, predicted creatinine clearance method and plasma sample method

2003 ◽  
Vol 17 (7) ◽  
pp. 561-565 ◽  
Author(s):  
Kazuo Itoh
Keyword(s):  
Glomerular Filtration Rate ◽  
Creatinine Clearance ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Plasma Sample ◽  
Comparison Of Methods ◽  
Plasma Sample Method ◽  
Sample Method

scholarly journals Assessment of Agreement between Gates Method and Dual Plasma Sample Method for Measurement of Glomerular Filtration Rate

2018 ◽  
Vol 20 (1) ◽  
pp. 19
Author(s):  
Pupree Mutsuddy ◽  
Mohammad Anwar Ul Azim ◽  
Shamim MF Begum ◽  
Raihan Hussain ◽  
Sharmin Farhana ◽  
...  
Keyword(s):  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Plasma Sample ◽  
Mean Difference ◽  
Strong Positive Correlation ◽  
Plasma Sample Method ◽  
The Mean ◽  
Sample Method

<p><strong>Objectives:</strong> Glomerular filtration rate (GFR) is generally considered to be the best index of renal function in both healthy and diseased kidneys. Calculation of GFR plays a vital role in the management of patients having renal diseases. Clinicians can make their final decision regarding the potential need for kidney transplantation and also selection of a potential kidney donor. Many methods have been developed in order to obtain more accurate GFR values. The most popular radionuclide method is camera based Gates method using 99mTc DTPA (Diethylene triaminepentaacetic acid). This method can provide immediate calculation of individual kidney function as well as of global renal function. But several sources of errors may reduce the reliability of this method. Measurement of multiple blood samples offers almost real values of GFR, which have become the gold standard in clinical research. The aim of this research work was to study the agreement between Gates method and dual plasma sample method for measurement of GFR.</p><p><strong>Patients and methods:</strong> This cross sectional study was carried out in National Institute of Nuclear Medicine &amp; Allied Sciences (NINMAS), during July 2015 to June 2016. A total of 59 patients were included in this study. GFR was estimated by both the camera based Gates method and dual plasma sample method (DPSM).Statistical analyses were carried out by using the Statistical Package for Social Sciences version 20.0 for Windows (SPSS Inc., Chicago, Illinois, USA). The mean values were calculated for continuous variables. Categorical data were expressed in percentage and number. Pearson correlation and Bland &amp; Altman (B &amp; A) analyses were applied for assessing correlation and agreement between Gates method and DPSM. Degree of relation between the variables is expressed by r (Pearson’s correlation coefficient).</p><p><strong>Results:</strong> The mean GFR evaluated by Gates method was found 82.2 ± 27.4 mL/min/1.73m<sup>2</sup> and mean GFR by DPSM was found 82.8 ± 24.1 mL/min/1.73m<sup>2</sup>. A strong positive correlation (r = 0.833; p = 0.001) was found between the GFR values measured by Gates method and DPSM. With Bland and Altman analysis, it was observed that mean difference of GFR measured by Gates method and DPSM was – 0.6 ± 15.22 mL/min/1.73m<sup>2</sup>. The limit of agreement ranged from – 30.44 mL/min/1.73m<sup>2</sup> to 29.24 mL/min/1.73m<sup>2</sup>.</p><p><strong>Conclusion:</strong> There was strong positive correlation between Gates method and DPSM for measurement of GFR. Mean difference between the methods was small. The bias between the methods was considered not significant. The differences within mean ± 1.96 SD are not clinically important. Hence Gates method and DPSM can reflect GFR almost equally and can be used interchangeably.</p><p>Bangladesh J. Nuclear Med. 20(1): 19-23, January 2017</p>

Comparison of methods for determination of glomerular filtration rate in hypertensive subjects with normal serum creatinine

2010 ◽  
Vol 19 (5) ◽  
pp. 278-286 ◽  
Author(s):  
Alberto Mazza ◽  
Domenico Montemurro ◽  
Antonio Piccoli ◽  
Antonio Pagnan ◽  
Achille Cesare Pessina ◽  
...  
Keyword(s):  
Glomerular Filtration Rate ◽  
Serum Creatinine ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Normal Serum ◽  
Comparison Of Methods ◽  
Normal Serum Creatinine

125I-Sodium Iothalamate in the Determination of the Glomerular Filtration Rate

1967 ◽  
Vol 06 (03) ◽  
pp. 204-310
Author(s):  
B. Malamos ◽  
A. S. Dontas ◽  
D. A. Koutras ◽  
S. Marketos ◽  
J. Sfontouris ◽  
...  
Keyword(s):  
Glomerular Filtration Rate ◽  
Clinical Practice ◽  
Creatinine Clearance ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Close Correlation ◽  
Inulin Clearance ◽  
Endogenous Creatinine Clearance ◽  
The Mean

SummaryOne hundred 125I-sodium iothalamate and endogenous creatinine clearances in 36 subjects were compared with standard inulin clearance measurements. There was a very close correlation of the urine/plasma ratios between any two of the three clearances studied, hence both labelled iothalamate and creatinine can be relied upon for the estimation of the glomerular filtration rate in clinical practice. The mean ratio of 125I-sodium iothalamate to inulin clearance was 1.01 and that of creatinine to inulin 1.03. It is concluded that the clearance of 125I-sodium iothalamate can be substituted for the clearance of inulin in clinical determinations of the glomerular filtration rate but that in centres without radioisotope facilities the endogenous creatinine clearance can be used instead.

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