Retrograde study showed a mitral-valve gradient of 25 mm. of mercury, a calculated forward-valve area of 0.3 square centimeter and an elevated pulmonary arteriolar resistance. An angiocardiogram (Fig.

A retrograde pyelogram (RPG) is an imaging test that uses contrast dye in your urinary tract to take a better X-ray image of your urinary system. Your urinary system includes your kidneys, bladder, ...

This paper explores the feasibility and principle of hepatic parenteral fluorescence imaging technology after retrograde injection of indocyanine green (ICG) through endoscopic nasobiliary drainage ...