The act of putting a catheter into a patient’s body.
A procedure in which a narrow hollow tube is introduced into a body part to examine it; remove fluid or tissue; or introduce fluid, medication, or diagnostic material such as contrast medium.
The introduction of a catheter into a hollow organ. This is most often performed as urethral catheterization, when a catheter is introduced into the bladder to relieve obstruction to the outflow of urine. Cardiac catheterization entails the introduction of special catheters into the arteries and veins of the arms or legs through which their tips are manipulated into the various chambers of the heart. Cardiac catheterization provides data on pressures and blood flow within the various chambers of the heart. It permits angiocardiography.
Insertion of a tube into a body orifice or structure in order to put something in or take something out. Cardiac catheterization is the insertion of a tube into the heart, via a blood vessel, in order to permit chemical determinations on heart blood, or to introduce dyes or radioactive materials to be detected in diagnostic tests or imaging. More common catheterizations include insertion of a tube into a blood vessel to permit intravenous feeding, and insertion of a tube into the urinary tract to relieve an obstruction to the flow of urine or to obtain a clean specimen of urine.
The procedure involves the insertion of a hollow tube into a body cavity or blood vessel.