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[Quality control in computed tomography].

G Rockstroh, S Lieberenz, U Straubel

    Radiologia Diagnostica
    |January 1, 1989
    PubMed
    Summary
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    Quality control in computed tomography (CT) requires essential checks for image quality and radiation dose. A simple test program with CT scans and a camera image can assess most critical parameters.

    Area of Science:

    • Medical Imaging
    • Radiological Physics

    Context:

    • Computed tomography (CT) systems are complex, making quality control challenging compared to conventional roentgenography.
    • Standardized quality control protocols for CT are essential for ensuring diagnostic accuracy and patient safety.

    Purpose:

    • To outline essential quality control parameters for computed tomography (CT).
    • To introduce a simplified test program for evaluating CT image quality and radiation burden.

    Summary:

    • Key CT quality control parameters include water/air values, noise, resolution, artifacts, homogeneity, contrast scale, slice thickness, positioning accuracy, topogram quality, and radiation dose.
    • A proposed test program utilizes 4 CT-scans and a camera test image to assess these critical parameters.
    • This approach aims to simplify and standardize CT quality assurance procedures.

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    Impact:

    • Facilitates more consistent and reliable CT imaging across different facilities.
    • Aids in optimizing radiation dose while maintaining high image quality.
    • Supports the development of efficient and effective CT quality control strategies.