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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 .
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 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 ...
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.
Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object.Applications of radiography include medical ("diagnostic" radiography and "therapeutic radiography") and industrial radiography.
It is also relatively inexpensive and quick to perform. Ultrasound scanners can be taken to critically ill patients in intensive care units, avoiding the danger caused while moving the patient to the radiology department. The real-time moving image obtained can be used to guide drainage and biopsy procedures.
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