Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Fluid-level motion artifact in computed tomography.

R L Scott, S Payne, M L Pinstein

    Journal of the Canadian Association of Radiologists
    |December 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Understanding multilevel influences on the adaptation of a complex intervention for oncology to palliative care transitions: a qualitative study across seven European countries.

    BMC palliative care·2026
    Same author

    Using co-design to identify healthcare priorities for patients with incurable head and neck cancer.

    BMC health services research·2026
    Same author

    Coping Strategies of Patients With Advanced Lung or Colorectal Cancer Over Time: Insights From the International ACTION Study.

    Psycho-oncology·2024
    Same author

    A multicentre randomised controlled trial of the McGrath™ Mac videolaryngoscope versus conventional laryngoscopy.

    Anaesthesia·2023
    Same author

    An analysis of the experiences of bereaved relatives and health care providers following palliative sedation: a study protocol for a qualitative international multicenter case study.

    BMC palliative care·2022
    Same author

    Strategies and checklist for designing and conducting palliative care research with family carers: EAPC international expert elicitation study.

    Palliative medicine·2022
    Same journal

    Balloon therapy for obesity--when the balloon bursts.

    Journal of the Canadian Association of Radiologists·1985
    Same journal

    An unusual radiological artefact: a nipple ring.

    Journal of the Canadian Association of Radiologists·1985
    Same journal

    Another look at the "ring-around-the-artery" in pneumomediastinum.

    Journal of the Canadian Association of Radiologists·1985
    Same journal

    Computed tomography used to exclude pneumothorax in bullous lung disease.

    Journal of the Canadian Association of Radiologists·1985
    Same journal

    Intrapetrous intracavernous fusiform aneurysm of the internal carotid artery.

    Journal of the Canadian Association of Radiologists·1985
    Same journal

    CT of myeloma involving the skull base.

    Journal of the Canadian Association of Radiologists·1985
    See all related articles

    Computerized tomographic (CT) scans of the abdomen can have artifacts from oral contrast material. Delaying the scan or repositioning the patient can reduce these artifacts for clearer imaging.

    Area of Science:

    • Medical imaging
    • Radiology
    • Diagnostic imaging

    Background:

    • Oral contrast agents are routinely used in abdominal CT scans.
    • These agents create numerous gas-fluid interfaces within the gastrointestinal tract.
    • Respiration and intra-abdominal content shifts induce fluid motion, causing artifacts.

    Purpose of the Study:

    • To identify the cause of radial streak artifacts in abdominal CT scans.
    • To propose methods for reducing these artifacts.

    Main Methods:

    • Analysis of artifact generation from gas-fluid interfaces during CT scanning.
    • Evaluation of fluid motion persistence after respiratory maneuvers.
    • Assessment of artifact reduction techniques.

    Related Experiment Videos

    Main Results:

    • Radial streak artifacts originate from persistent fluid motion at air-fluid interfaces.
    • Artifacts occur even when respiration is suspended during the scan.
    • Delaying the scan initiation allows fluid motion to cease.
    • Re-scanning in the lateral decubitus position shifts artifacts away from regions of interest.

    Conclusions:

    • Persistent fluid motion is the primary cause of radial streak artifacts in abdominal CT.
    • Artifacts can be effectively reduced by delaying scan initiation or using the lateral decubitus position for re-scanning.