Research on the influencing factors of measuring glomerular filtration rate through 99Tcm-DTPA renal dynamic imaging

Glomerular filtration rate (GFR) is an important criterion to estimate renal function. The most common way to measure GFR clinically is 99Tcm-DTPA Renal Dynamic Imaging. However, the result may be influenced by many factors such as plasma protein binding, delineation of kidney and background region of interest, kidney depth, age and renal function and preparation of patient, nurse's operative technique, etc. The article analyzed each factor above respectively for clinical reference. (authors)