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Value of renal cortical thickness as a predictor of renal function impairment in chronic renal disease patients.

Yamashita SR, von Atzingen AC, Iared W, Bezerra AS, Ammirati AL, Canziani ME, D'Ippolito G - Radiol Bras (2015 Jan-Feb)

Bottom Line: The interobserver agreement was considered excellent (0.754) for measurements of cortical thickness and bipolar length (0.833), and satisfactory for parenchymal thickness (0.523).A moderate correlation was observed between estimated GFR and cortical thickness, but bipolar length and parenchymal thickness were poorly correlated.Abstract available from the publisher.

View Article: PubMed Central - PubMed

Affiliation: MD, Radiologist, Collaborator at Unit of Radiology and Imaging Diagnosis, Escola Paulista de Medicina da Universidade Federal de São Paulo (EPM-Unifesp), São Paulo, SP, Brazil.

ABSTRACT

Objective: To determine the presence of linear relationship between renal cortical thickness, bipolar length, and parenchymal thickness in chronic kidney disease patients presenting with different estimated glomerular filtration rates (GFRs) and to assess the reproducibility of these measurements using ultrasonography.

Materials and methods: Ultrasonography was performed in 54 chronic renal failure patients. The scans were performed by two independent and blinded radiologists. The estimated GFR was calculated using the Cockcroft-Gault equation. Interobserver agreement was calculated and a linear correlation coefficient (r) was determined in order to establish the relationship between the different renal measurements and estimated GFR.

Results: The correlation between GFR and measurements of renal cortical thickness, bipolar length, and parenchymal thickness was, respectively, moderate (r = 0.478; p < 0.001), poor (r = 0.380; p = 0.004), and poor (r = 0.277; p = 0.116). The interobserver agreement was considered excellent (0.754) for measurements of cortical thickness and bipolar length (0.833), and satisfactory for parenchymal thickness (0.523).

Conclusion: The interobserver reproducibility for renal measurements obtained was good. A moderate correlation was observed between estimated GFR and cortical thickness, but bipolar length and parenchymal thickness were poorly correlated.

No MeSH data available.


Related in: MedlinePlus

Distribution of renal function impairment levels according to corticalthickness, bipolar length and parenchymal thickness of the left kidney.
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f02: Distribution of renal function impairment levels according to corticalthickness, bipolar length and parenchymal thickness of the left kidney.

Mentions: Pearson's linear correlation coefficient (r) showed moderate correlation betweenmeasurements of cortical thickness (r = 0.449-0.478; p < 0.001)and renal function impairment. However, poor but still significant correlation wasobserved between renal function and bipolar length (r = 0.380; p =0.004) (Table 2; Figure 2). Finally, the correlation between estimated renalfunction impairment and parenchymal thickness proved to be poor and without anystatistical significance (r = 0.217; p = 0.116).


Value of renal cortical thickness as a predictor of renal function impairment in chronic renal disease patients.

Yamashita SR, von Atzingen AC, Iared W, Bezerra AS, Ammirati AL, Canziani ME, D'Ippolito G - Radiol Bras (2015 Jan-Feb)

Distribution of renal function impairment levels according to corticalthickness, bipolar length and parenchymal thickness of the left kidney.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4366023&req=5

f02: Distribution of renal function impairment levels according to corticalthickness, bipolar length and parenchymal thickness of the left kidney.
Mentions: Pearson's linear correlation coefficient (r) showed moderate correlation betweenmeasurements of cortical thickness (r = 0.449-0.478; p < 0.001)and renal function impairment. However, poor but still significant correlation wasobserved between renal function and bipolar length (r = 0.380; p =0.004) (Table 2; Figure 2). Finally, the correlation between estimated renalfunction impairment and parenchymal thickness proved to be poor and without anystatistical significance (r = 0.217; p = 0.116).

Bottom Line: The interobserver agreement was considered excellent (0.754) for measurements of cortical thickness and bipolar length (0.833), and satisfactory for parenchymal thickness (0.523).A moderate correlation was observed between estimated GFR and cortical thickness, but bipolar length and parenchymal thickness were poorly correlated.Abstract available from the publisher.

View Article: PubMed Central - PubMed

Affiliation: MD, Radiologist, Collaborator at Unit of Radiology and Imaging Diagnosis, Escola Paulista de Medicina da Universidade Federal de São Paulo (EPM-Unifesp), São Paulo, SP, Brazil.

ABSTRACT

Objective: To determine the presence of linear relationship between renal cortical thickness, bipolar length, and parenchymal thickness in chronic kidney disease patients presenting with different estimated glomerular filtration rates (GFRs) and to assess the reproducibility of these measurements using ultrasonography.

Materials and methods: Ultrasonography was performed in 54 chronic renal failure patients. The scans were performed by two independent and blinded radiologists. The estimated GFR was calculated using the Cockcroft-Gault equation. Interobserver agreement was calculated and a linear correlation coefficient (r) was determined in order to establish the relationship between the different renal measurements and estimated GFR.

Results: The correlation between GFR and measurements of renal cortical thickness, bipolar length, and parenchymal thickness was, respectively, moderate (r = 0.478; p < 0.001), poor (r = 0.380; p = 0.004), and poor (r = 0.277; p = 0.116). The interobserver agreement was considered excellent (0.754) for measurements of cortical thickness and bipolar length (0.833), and satisfactory for parenchymal thickness (0.523).

Conclusion: The interobserver reproducibility for renal measurements obtained was good. A moderate correlation was observed between estimated GFR and cortical thickness, but bipolar length and parenchymal thickness were poorly correlated.

No MeSH data available.


Related in: MedlinePlus