Sherwin Flashcards
Uses X-ray film and cassettes. Images are developed in a darkroom and then viewed on a lightbox.
Conventional Radiography (Film-based):
Utilizes a phosphor plate as the image receptor. The plate is processed digitally to create the X-ray image.
Computed Radiography (CR):
Employs a direct digital detector to capture X-rays, producing digital images that can be viewed on a computer monitor immediately.
Digital Radiography (DR):
Portable X-ray machines can be brought to the patient’s bedside in hospitals or used in emergencies.
Mobile X-ray Units:
Used in medical settings to produce static images of the internal structures of the human body. Common applications include chest X-rays, dental X-rays, and bone imaging.
X-ray Radiography Machines:
Combines X-ray technology with computer processing to create detailed cross-sectional images (slices) of the body. CT scans are used for diagnosing and monitoring conditions in various body regions.
Computed Tomography (CT) Scanner:
Involves real-time X-ray imaging, often used for dynamic studies such as barium swallow or cardiac catheterization.
Fluoroscopy Machines:
Specifically designed for breast imaging, mammography machines use low-dose X-rays to detect and diagnose breast abnormalities, including tumors and cysts.
Mammography Machines:
Used to visualize blood vessels and the circulatory system. Contrast agents are often injected to enhance visibility, and X-ray images help diagnose conditions like arterial blockages or aneurysms.
Angiography Machines:
Employed by dentists for imaging teeth and the surrounding structures. Intraoral and extraoral X-ray machines are commonly used in dental practices.
Dental X-ray Machines:
Measure bone density using X-rays, particularly in the assessment of osteoporosis and the risk of fractures.
Bone Densitometry Machines (DEXA):
are essential medical devices that use electromagnetic radiation in the X-ray spectrum to create images of the internal structures of objects, particularly the human body.
X-ray machines
is the core component that generates X-rays. It consists of a cathode and an anode. The cathode emits electrons, and when these electrons strike the anode, X-rays are produced.
X-ray Tube:
is a device that shapes and limits the X-ray beam to the specific area of interest. This helps in reducing unnecessary radiation exposure to surrounding tissues and organs.
Collimator:
allows the technologist to set exposure parameters, such as the X-ray tube current, voltage, and exposure time. It also provides a means to control the X-ray machine and ensure proper image quality.
Control Panel:
The patient lies on the X-ray table, and the Bucky tray holds the X-ray film or digital image receptor. These components ensure proper alignment and stabilization during the imaging procedure.
Table and Bucky Tray:
captures the X-rays that pass through the patient and produces a visible image. In traditional X-ray systems, this is a film cassette. In digital X-ray systems, it is a digital detector or a phosphor plate.
Image Receptor:
is a device placed between the patient and the image receptor to reduce scattered radiation, which can degrade the quality of the X-ray image. It improves image contrast. Cassette (Film-based systems).
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