Publications by authors named "Gemma Perez Ortiz"

Objectives: Upper urinary tract videourodynamic studies were first described in the second half of the 20th century (years 60-70). The antegrade pyelogram with constant pressure and controlled flow received the name of its author, "Vela Navarrete test" (1982), who currently refers to it as video-urodynamic study of the upper urinary tract. It is the simultaneous study of pressure, flow, and dynamic x-ray of the upper urinary tract and it keeps same indications than the original design, in spite of the appearance of new dynamic and static imaging techniques (ultrasound, CT scan, MRI, radioisotope studies).

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