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Related Experiment Videos

Radiologic low-dose pelvimetry. Indications and pelvimetry data

H Ohlsén

    Acta Radiologica: Diagnosis
    |January 1, 1980
    PubMed
    Summary
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    This study defines pelvic diameters and evaluates narrow pelvis selection methods. A modified low-dose pelvimetry technique is proposed to reduce radiation exposure in pregnant patients.

    Area of Science:

    • Radiology
    • Obstetrics
    • Pelvic Anatomy

    Background:

    • Radiologic pelvimetry data, including mean values and correlations of pelvic diameters, have been established in large patient populations.
    • The incidence of contracted and borderline pelvic measurements, and the efficacy of clinical palpation for identifying narrow pelves, were evaluated.
    • Previous indications for pelvimetry were based on an earlier clinical context.

    Purpose of the Study:

    • To re-evaluate the clinical application of pelvimetry.
    • To propose a modified routine low-dose pelvimetry method.
    • To assess the potential for reducing radiation dose in obstetric imaging.

    Main Methods:

    • Defined mean values and correlations of pelvic diameters from radiologic pelvimetry data.

    Related Experiment Videos

  • Evaluated the incidence of contracted and borderline pelvic measurements.
  • Proposed a modified low-dose pelvimetry technique involving measurement of transverse outlet diameters on an anteroposterior (a.p.) film, estimating the sum of outlet diameters, and using a supplementary lateral film in selected cases.

    • Main Results:

    • Established radiologic pelvimetry data, including mean values and correlations of pelvic diameters.
    • Evaluated the incidence of contracted and borderline pelvic measurements and the efficacy of palpation for selecting patients with narrow pelves.
    • Proposed a modified low-dose pelvimetry approach.

    Conclusions:

    • A modified routine low-dose pelvimetry technique is proposed based on re-evaluation of clinical application.
    • Employing pelvimetry in all primigravidae using the orthodiagraphic a.p. film results in a lower total population dose compared to the current routine of complete pelvimetry in selected cases.