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"C-arm" mobile fluoroscopy machines are often colloquially referred to as image intensifiers (or IIs), [10] however strictly speaking the image intensifier is only one part of the machine (namely the detector). Fluoroscopy, using an X-ray machine with an image intensifier, has applications in many areas of medicine. Fluoroscopy allows live ...
Shifting the C-arm must normally be done many times during the surgical procedure, taking additional time and increasing the radiation exposure to patient and staff. With the G-arm the stand can stay in a fixed position during the entire surgical procedure as both imaging planes can be viewed simultaneously.
Fluoroscopy is also used in airport security scanners to check for hidden weapons or bombs. These machines use lower doses of radiation than medical fluoroscopy. [12] The reason for higher doses in medical applications is that they are more demanding about tissue contrast, and for the same reason they sometimes require contrast media.
X-ray radiation is ionizing radiation, thus exposure is potentially harmful. Compared to a mobile C-Arm, which is classically used in surgery, CT scanners and fixed C-Arms may deliver higher dose and may be operated for longer periods during surgery. It is therefore important to monitor radiation dose to both patient and the medical staff. [6]
Fluoroscopy is mainly performed to view movement (of tissue or a contrast agent), or to guide a medical intervention, such as angioplasty, pacemaker insertion, or joint repair/replacement. The last can often be carried out in the operating theatre, using a portable fluoroscopy machine called a C-arm. [11]
[10] [11] Many fixed, and even mobile, C-arm fluoroscopy systems are now capable of CBCT acquisitions, in addition to traditional planar fluoroscopy. [12] [13] CBCT aids image guidance during interventional radiology procedures treating various medical conditions including knee osteoarthritis, benign prostatic hyperplasia, and hepatocellular ...
Today's NYT Connections puzzle for Friday, December 13, 2024The New York Times
A stand or arm can be used to maintain the system on top of the operating field, particularly when the weight and complexity of the device is high (e.g. when multiple cameras are used). The main disadvantage of such devices is that operating theater lights can interfere with the fluorescence emission channel, with a consequent decrease of ...
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