Functional Evaluation of Upper Urinary Tract with Diuretic Mercaptoacetyltriglycine Renal Scans in Patients with Benign Prostatic Obstruction before and after Surgical Intervention: A Pilot Study

Figure 3

Changes in the T_1/2 of the diuretic ^99mTc-MAG3 scan according to the preoperative T_1/2 of the diuretic ^99mTc-MAG3 scan results. (a, b) Preoperative values of the T_1/2 of the diuretic ^99mTc-MAG3 scan were 7.0 in the left kidney and 9.3 in the right kidney, which means no delay in the T_1/2 of the upper urinary tract (a). The values were improved to 4.7 in the left kidney and 5.3 in the right kidney postoperatively (b). (c, d) Preoperative values of the T_1/2 of the diuretic ^99mTc-MAG3 scan were 73.3 in the left kidney and 44.0 in the right kidney, which means obvious upper urinary tract obstruction (c). The values were markedly improved to 11.6 in the left kidney and 11.6 in the right kidney postoperatively (d).

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(b)

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