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2. Interventional radiology - Wikipedia

   en.wikipedia.org/wiki/Interventional_radiology

   Permanent hemodialysis catheters are longer overall but a segment is tunneled through the skin of the chest, which lets the catheter lie flat and lowers the risk of infection. Central venous access refers to a variety of intravenous catheters placed in patients requiring certain long-term medications.

3. Magnetic resonance imaging - Wikipedia

   en.wikipedia.org/wiki/Magnetic_resonance_imaging

   Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to generate pictures of the anatomy and the physiological processes inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to form images of the organs in the body.

4. Uterine artery embolization - Wikipedia

   en.wikipedia.org/wiki/Uterine_artery_embolization

   Under fluoroscopic guidance, a catheter is then introduced into the artery and used to select the uterine vessels for subsequent embolization. Once at the level of the uterine artery an angiogram with contrast is performed to confirm placement of the catheter, and the embolizing agent (spheres or beads) is released. As more embolizing agent is ...

5. Mitrofanoff procedure - Wikipedia

   en.wikipedia.org/wiki/Mitrofanoff_procedure

   Stenosis: Stenosis of the channel occurs when it becomes narrower, making it difficult to pass a catheter. [11] Additional surgery may be required to ensure the safe insertion of a catheter. [11] If the bladder cannot be emptied via the urethra and the catheter cannot enter the channel, it is a medical emergency. [5]

6. Central venous catheter - Wikipedia

   en.wikipedia.org/wiki/Central_venous_catheter

   The catheter is held in place by an adhesive dressing, suture, or staple which is covered by an occlusive dressing. Regular flushing with saline or a heparin-containing solution keeps the line open and prevents blood clots. There is no evidence that heparin is better than saline at preventing blood clots. [43]

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