The X-ray information from a CT scan is sent to a computer, which then interprets the data and displays it as two-dimensional images on a monitor.
Here's a more detailed breakdown:
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X-Ray Data Acquisition: During a CT scan, an X-ray beam rotates around the patient, capturing numerous images from different angles.
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Data Transmission: The detectors in the CT scanner measure the intensity of the X-ray beam after it has passed through the body. This information is converted into electrical signals.
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Computer Processing: These electrical signals, representing the X-ray data, are then transmitted to a powerful computer system. The computer utilizes sophisticated algorithms, including reconstruction algorithms, to process this raw data.
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Image Reconstruction: The algorithms reconstruct cross-sectional images (slices) of the body from the multiple X-ray projections.
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Display and Storage: These reconstructed images are then displayed on a monitor for radiologists to review. The images are typically stored digitally in a Picture Archiving and Communication System (PACS) for long-term storage and easy retrieval.
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Sharing and Distribution: The CT scan images can then be electronically shared with other healthcare providers involved in the patient's care. This sharing often occurs via PACS or other secure electronic health record systems. This can involve secure file transfer protocols or dedicated medical imaging networks.
In short, CT scan data travels from the scanner's detectors to a computer for processing and image reconstruction, and is then displayed, stored, and shared digitally.
