Dual Source CT Imaging

Contents:

  • Radiographer (Medical Imaging Technologist)
  • Related articles
  • Abdominal dual-source dual-energy CT: Uses in clinical practice
  • Supplemental Content
  • Two X-ray sources and two detectors means enhanced temporal resolutions for patients of all sizes

    • Dual energy CT itself is not associated with any immediate after effects.

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    You should be able resume normal activities straight after the scan has been carried out. There is no difference in the risks of dual energy CT when compared with single energy CT examinations see Computed Tomography. Some scanners using dual energy CT can use slightly higher radiation doses than single energy scanners.

    A radiologist specialist doctor decides on how the scan is to be carried out and whether dual energy scanning is appropriate for your problem.

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    Sometimes this has already been decided following prior discussions with your own doctor. A radiographer also known as medical imaging technologists operates the dual energy CT scanner.

    Radiographer (Medical Imaging Technologist)

    The images taken by the radiographer are examined by the radiologist, who writes a report that is sent to your doctor. Dual energy CT scanners are a relatively new technology, and are mostly used in radiology departments within hospitals.

    Related articles

    You will not notice any difference in the examination whether you have a single energy or dual energy CT. Uses in clinical practice. Although the temporal resolution of and slice single-source CT systems can be improved through multisegment reconstruction, which has been found advantageous in some but not all cases 22—24 , potential downsides of this approach include varying effectiveness with heart rate and the fact that data acquired during consecutive cardiac cycles are averaged to generate each cross-sectional image. Previous studies have also demonstrated that heart rate is a determinant of image quality and influences diagnostic accuracy in coronary angiography by single-source CT 5,7—9. Dual-source computed tomography CT angiography after intravenous injection of contrast agent.

    A few large private radiology practices do have such machines. The time that it takes your doctor to receive a written report on the test or procedure you have had will vary, depending on:. Please feel free to ask the private practice, clinic, or hospital where you are having your test or procedure when your doctor is likely to have the written report.

    Abdominal dual-source dual-energy CT: Uses in clinical practice

    It is important that you discuss the results with the doctor who referred you, either in person or on the telephone, so that they can explain what the results mean for you. A radiographer or medical imaging technologist is a university-trained health professional who works with cutting edge technology to produce X-rays,….

    What is an inferior vena cava filter? Inferior vena cava filters IVCF are mechanical devices that are designed to stop….

    Supplemental Content

    What is a breast core biopsy? A breast core biopsy is where a special needle or probe is inserted into…. Although most elements in the human body have very low K-edges 0. For instance, at 80 kVp a structure that contains no introduced iodine i.

    Dual Energy Imaging with Dual Source Systems

    As 80 kVp is closer to Therefore, when using two energies, it is possible to delineate structures based solely on their attenuation differences between 80 kVp and kVp. A dual x-ray source, tube A kVp and tube B 80 kVp or kVp with an angular offset of 90 degrees are preferred offsets for a dual source scanner in the current literature To quiz yourself on this article, log in to see multiple choice questions.

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    Two X-ray sources and two detectors means enhanced temporal resolutions for patients of all sizes

    Increasingly, CT imaging is becoming standard in clinical routine for cardiology. SOMATOM Definition Flash and SOMATOM Force Dual Source CT scanners. Recent advances in the use of energy-resolving, photon-counting detectors for CT imaging suggest the ability to acquire data in multiple energy.

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    Quiz questions

    There are three different dual energy technologies available: Dual-energy computed tomography imaging of the aorta.