Traditional Culture Encyclopedia - Photography and portraiture - What are the common special photography? What is the main purpose of each?
What are the common special photography? What is the main purpose of each?
(1) Tomography: The tomographic images of designated slices are taken by a tomographic scanner, which is mainly used to: ① identify the lesions that are difficult to display and overlap on plain films; ② Observe the cavity, calcification and margin of the tumor; ③ Check bronchial stenosis, occlusion or dilatation.
(2) Soft line photography: Soft tissue photography, such as mammography, is carried out by using molybdenum target X-ray tubes that emit soft rays.
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