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In interventional radiology, Onyx is a trade name for a copolymer used for embolisation therapy, [1] which involves the occlusion of blood vessels. It is a liquid embolic agent . Onyx is produced and sold by Medtronic (previously Covidien, which acquired ev3 Inc., the original developer of Onyx, in 2010).
The test was first introduced in 1956, using iodine-131 diodrast. [25] [26] Later developments included iodine-131, and then iodine-123, labelled ortho-Iodohippuric acid (OIH, marketed as Hippuran). [27] [28] 99m Tc-MAG3 has replaced 131 I-OIH because of better quality imaging regardless of the level of kidney function, [29] and lower radiation ...
Embolization refers to the passage and lodging of an embolus within the bloodstream. It may be of natural origin (pathological), in which sense it is also called embolism, for example a pulmonary embolism; or it may be artificially induced (therapeutic), as a hemostatic treatment for bleeding or as a treatment for some types of cancer by deliberately blocking blood vessels to starve the tumor ...
Preoperative PVE is a very well tolerated procedure with extremely low mortality rates (0.1 percent) and technical failure rates (0.4 percent). [3] Complication rates from the procedure are low as well (2–3 percent) and include portal vein thrombosis, liver infarction, necrosis, infection, pneumothorax, and other risks as listed above. [3]
An intravenous pyelogram is used to look for problems relating to the urinary tract. [5] These may include blockages or narrowing, such as due to kidney stones, cancer (such as renal cell carcinoma or transitional cell carcinoma), enlarged prostate glands, and anatomical variations, [5] such as a medullary sponge kidney. [6]
Bronchial artery embolization to control hemoptysis: comparison of N-butyl-2-cyanoacrylate and polyvinyl alcohol particles An important paper with long-term results from Seoul National University encompassing 406 cases (293 PVA cases, 113 NBCA cases). The non-hemoptysis survival rates at 1, 3, and 5 years for PVA were 77%, 68%, and 66% ...
Renal sympathetic denervation (RSDN) is a minimally invasive, endovascular catheter based procedure using radiofrequency ablation or ultrasound ablation aimed at ...
Blood tests are also used to assess kidney function. These include tests that are intended to directly measure the function of the kidneys, as well as tests that assess the function of the kidneys by looking for evidence of problems associated with abnormal function. One of the measures of kidney function is the glomerular filtration rate (GFR).