the correlation of five radionuclide parameters with the pelvic pressure was computed : the time to the peak value of the isotope nephrography ( t-max ) and renal transit time correlated very well with high grade pelvic pressure ( greater than 37 cm . h2o ) : r = 0.91 and 0.86 respectively , but much less well with low grade pelvic pressure ( less than 37 cm . h2o ) : r = 0.73 and 0.62 respectively .
C0034595
radionuclide
C0022262
isotope