REGIONAL (COMPARTMENTAL) RENOGRAM FOR HYPERTENSION EVALUATION

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Abstract
Some specific findings caused by partial ligation of the renal artery, vein or ureter were demonstrated on the "regional" renogram in a series of dog experiments: (1) a predominant change due to partial renal artery ligation was noted in the middle renogram; (2) a slowly rising linear curve in the outer renogram and a flattening linear curve in the inner renogram were more specific for renal vein ligation; (3) a slowly rising linear curve in the inner renogram was specific for obstructive uropathy. A comparison of the regional renogram and the conventional renogram was made in a group of 44 patients with known hypertension and revealed the regional renogram to be more sensitive and specific for evaluating the cases of renal hypertension.

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