A CT scan is a diagnostic imaging procedure that provides clear definition of bones, organs, and soft tissue in as little as 5 minutes. CT scans, also referred to as computed tomography, utilizes an x-ray beam that revolves around the patient to collect cross-sectional image data that is reconstructed into image slices for analysis. This short video details what a CT scan is and how a CT scan works. How much radiation in a CT scan? Relative radiation exposure chart gives a great visual of radiation levels in imaging.
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Covered Topics include definition and purpose of CT scans, how CT scans work, components of a CT scanner (X-ray tube, detector assembly, CT scan computer), image reconstruction process (2D image slices and 3D renderings), CT Scan Procedure, use of a contrast agent during CT scans
imaging and analysis. Cross-sectional image data collection, Interpretation of CT images (brightness levels for bones, anatomy, liquid, and air), role of the radiologist in diagnosing based on CT images, radiation exposure in CT scans. Radiation dosage for different types of CT scans (chest, brain, whole body), comparison of CT scan radiation to background radiation, low dose imaging techniques and the ALARA principle (As Low As Reasonably Achievable), applications of CT Scans. Diagnostic uses for bones, organs, and soft tissues, advantages of CT scans over other imaging methods, safety and Risks of CT Scans. Potential risks of radiation exposure, safety measures to minimize radiation exposure, use of contrast agents and associated risks, future developments in CT technology, innovations in CT scan technology, improvements in image quality and reduction in radiation dosage, emerging applications and research areas in CT imaging.
Educational videos and articles on CT scans, Professional organizations and guidelines for CT scan usage, Patient resources and support for those undergoing CT scans.
Related Links:
Is a CT Scan Safe?
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CT Scan Cancer Risk Calculator
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Video featured in the following playlists:
CT (Computed Tomography) Playlist-
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Patient Resources Playlist-
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Chapters
00:00 What is a CT scan and How Does It Work?
00:24 What happens during a CT scan?
01:14 Radiation in CT Scans
