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

Physiologic changes during high field strength MR imaging.

D K Kido, T W Morris, J L Erickson

    AJR. American Journal of Roentgenology
    |June 1, 1987
    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

    Intracranial hematolymphoid malignancies: A case series with molecular characterization.

    Clinical neurology and neurosurgery·2023
    Same author

    Magnetic monitoring of a small Foucault pendulum.

    The Review of scientific instruments·2018
    Same author

    Revised Recommendations of the Consortium of MS Centers Task Force for a Standardized MRI Protocol and Clinical Guidelines for the Diagnosis and Follow-Up of Multiple Sclerosis.

    AJNR. American journal of neuroradiology·2015
    Same author

    Early MRI activity predicts treatment nonresponse with intramuscular interferon beta-1a in clinically isolated syndrome.

    Multiple sclerosis and related disorders·2015
    Same author

    Ten-year follow-up of the 'minimal MRI lesion' subgroup from the original CHAMPS Multiple Sclerosis Prevention Trial.

    Multiple sclerosis (Houndmills, Basingstoke, England)·2014
    Same author

    Simple MRI metrics contribute to optimal care of the patient with multiple sclerosis.

    AJNR. American journal of neuroradiology·2014
    Same journal

    The Banality of Cancer: Entropy As a Third Pillar of Lung Nodule Risk Assessment.

    AJR. American journal of roentgenology·2026
    Same journal

    A Narrow Window for Artificial Intelligence-Generated Synthetic Temporal Bone CT From MRI.

    AJR. American journal of roentgenology·2026
    Same journal

    From Uncertainty to Actionable Management: The Isolated Abnormal Axillary Lymph Node.

    AJR. American journal of roentgenology·2026
    Same journal

    Beyond Detection: Translating Artificial Intelligence-Driven Opportunistic Screening Into Clinical Action.

    AJR. American journal of roentgenology·2026
    Same journal

    Navigating PSMA PET Radiopharmaceuticals: Clinical and Operational Factors.

    AJR. American journal of roentgenology·2026
    Same journal

    From Mesenteric Ischemia to Intestinal Stroke.

    AJR. American journal of roentgenology·2026
    See all related articles

    Magnetic resonance imaging (MRI) uses radiofrequency (RF) power, potentially increasing body temperature. This study found minimal, clinically insignificant temperature changes in humans during 1.5 T MRI scans.

    Area of Science:

    • Medical Imaging
    • Biophysics
    • Human Physiology

    Background:

    • High-field MRI systems utilize significant radiofrequency (RF) power.
    • Patient RF power absorption can lead to measurable temperature changes, as seen in animal studies.

    Purpose of the Study:

    • To quantify human body surface temperature and physiological changes during 1.5 Tesla (T) MRI scans.
    • To assess the impact of varying RF power levels on patient physiology.

    Main Methods:

    • 27 healthy volunteers underwent MRI at 0, 0.2, and 0.8 W/kg RF power levels.
    • Measurements included blood pressure, heart rate, respiration, and axillary temperature.
    • Scans were randomized across lumbar and head regions.

    Main Results:

    Related Experiment Videos

    • Statistically significant, yet small, temperature increases were observed at 0.2 W/kg (+0.2°C) and 0.8 W/kg (+0.5°C) during lumbar scans.
    • No significant changes in blood pressure or respiratory rate were noted.
    • Minor heart rate increase (3 bpm) at 0.8 W/kg; physiological changes were smaller for head scans.

    Conclusions:

    • Observed temperature and physiological changes during 1.5 T MRI are clinically insignificant at tested RF power levels.
    • Further research is recommended for patient populations with specific conditions like cardiac failure or metallic implants.