To investigate the regularity of renal dynamic imaging in the various courses of diabetes mellitus

and then to provide the important evidence variety for diagnosis and treatment. The data of renal dynamic imaging was analyzed on 276 kidneys of 40 normal and 98 diabetic patients

and according to course of disease

the diabetic patients was divided into three groups: ≤1 year

1-5 year and ≥5 year respectively. Based upon was grouped 99mTc-DTPA renal dynamic imaging and others

the renal functions into normal

approximately normal

Ⅰ

Ⅱand Ⅲ injury respectively

and the statistics and analysis of these data were caned out. The extent of renal function injury was related to the course of diseace significantly

and it showed that the longer the course

the heavier the damage of renal function

and there was a significant difference between them (P<0.01). There was radioactive retention in pelvis and/or calyxes in 23.5% patients together with" a stepwise curve" on renogram. 99mTc-DTPA renal dynamic imaging can effectively evaluate the extent of renal functions injury and was also valuable for the clinical. Also

the study indicated that in diabetic patients susceptible to urinary tract infection could aggravate the injury of renal function.