Abstract:

Objective      To measure the ratio of kidney biggest cross-section and renal sinus biggest cross-section diameters by CT, and then analyze its relation with renal function. Methods      According to CT plain scan, kidney and renal sinus maximum horizontal diameters were measured. The linear correlation of the diameter ratio and renal function was analyzed and then the ratio significance was further defined. Results       There was a linear positive relationship between the diameter ratio of the kidney and renal function. The critical value for the ratio was retrogradely estimated as 3.41, and a ratio below 3.41 suggested kidney dysfunction and decreased glomerular filtration rate. Conclusion      The kidney diameter ratio can be used to assess renal function, so a kidney′s horizontal diameters should be measured by CT in patients in order to provide a basis for diagnosis and treatment and avoid further kidney dysfunction.

Key words: Renal function; Renal sinus fat; Tomography , X-ray computed