Portuguese to English Medical Medical (general)

I can't seem to figure what the original abbreviation of these acronynms are, but they are in relation to a Renogram. When I ask what Mr. Google what a "Renogram shows", he shows "renal blood flow (RBF)" and "cardiac output" and even "renal blood flow/cardiac output" comes up. This is an health correspondence titled at the top "HIPERPLASIA GENGIVAL EM DOENTE COM HIPERTENSÃO ARTERIAL." Here's the text:

Text:
"A ecografia renal com doppler e a angioTC abdominal confirmam o diagnóstico de estenose proximal da artéria renal esquerda (extensão de 9 mm). O Renograma revela RD com 75% da função e RE com 25%. Manteve a terapêutica hipotensora tripla e realizou angioplastia por intervenção percutânea ao fim de 5 meses."