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Kathleen "Kitty" Clara Clark MBE (1896 – 20 October 1968) was a British radiographer who wrote the standard text now called Clark's Positioning in Radiography. She was one of the first qualified radiographers and established the teaching of radiography at the Royal Northern Hospital .
The variety of medical imaging technologies used in planning includes x-ray computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) among others. IGRT can help to reduce errors in set-up and positioning, allow the margins around target tissue when planning to be reduced, and enable treatment to be ...
The radiographer, also known as a "radiologic technologist" in some countries such as the United States and Canada, is a specially trained healthcare professional that uses sophisticated technology and positioning techniques to produce medical images for the radiologist to interpret. Depending on the individual's training and country of ...
Interventional radiology (IR) is a medical specialty that performs various minimally-invasive procedures using medical imaging guidance, such as x-ray fluoroscopy, computed tomography, magnetic resonance imaging, or ultrasound. IR performs both diagnostic and therapeutic procedures through very small incisions or body orifices.
A beam that is wide along the cathode–anode axis contains a wider range of X-ray intensities than a narrow beam. In a wide beam, a large image receptor captures a wider range of X-ray intensities than a small receptor (at the same SID). Both of these factors influence the visibility of the anode heel effect.
The images may also be used to check for other requirements of some types of treatment, such as full or empty bladder, empty rectum, etc. [8] [27] The same cone beam beam source and detector can alternatively be used to take simple X-ray positioning images if the organ shows particularly well on X-ray or if Fiducial markers have been inserted ...
Interventional radiology/oncology [ edit on Wikidata ] Surface-guided radiation therapy (SGRT) (sometimes referred to as Surface-image Guided Radiation Therapy ) is the process of using 3D imaging to position and track movement of radiation therapy patients during treatment.
Adequate positioning is confirmed with injections of contrast. [ 8 ] Once the catheter is in the extraluminal space, a guidewire is advanced in a loop configuration which allows for a more rigid structure that can be used to traverse the subintimal dissection plane when compared to the free end of a straight guidewire.
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