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MRI without contrast agents is the imaging mode of choice for pre-surgical, in-utero diagnosis and evaluation of fetal tumors, primarily teratomas, facilitating open fetal surgery, other fetal interventions, and planning for procedures (such as the EXIT procedure) to safely deliver and treat babies whose defects would otherwise be fatal. [52] [53]
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.
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.
Coudé (French for elbowed) catheters have a 45° bend at the tip that facilitates easier passage through an enlarged prostate. Councill tip catheters [5] have a small hole at the tip so they can be passed over a wire. Three-way, or triple lumen catheters have a third channel used to infuse sterile normal saline for irrigation.
An MRI robot is a medical robot capable of operating within a magnetic resonance imaging (MRI) scanner for the purpose of performing or assisting in image-guided interventions (IGI). IGI are commonly performed manually by physicians operating instruments, such as needles, based on medical images and are used in most medical fields, particularly ...
Pigtail catheter is a non-selective catheter with multiple side holes that can deliver large volumes of contrast into a blood vessel for imaging purposes. [29] Cobra catheter is a selective catheter used to catheterise downgoing vessels in the abdomen. Cobra catheters move forward by pushing and are removed by pulling. [30]
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Removal of catheter(s) from cranial cavity or tissue ( 01.28 ) Placement of intracerebral catheter(s) via burr hole(s) ( 01.3 ) Incision of brain and cerebral meninges