Radiographic pelvimetry--its use and possible radiation risk

Area of Science:

• Obstetrics and Gynecology
• Radiology
• Radiation Oncology

Background:

• Radiographic pelvimetry is frequently utilized in obstetric practice, with significant use in Sweden and the United States.
• The ongoing debate regarding the necessity and risks of radiographic pelvimetry highlights a need for data-driven evaluation.
• Current justification for its use relies heavily on the assumption of negligible radiation exposure to mother and child.

Purpose of the Study:

• To present measurement results of absorbed radiation dose from the standard radiographic pelvimetry method in Sweden.
• To estimate the radiation risk associated with radiographic pelvimetry.
• To provide data for the scientific evaluation of radiographic pelvimetry's value in labor management.

Main Methods:

• Measurement of absorbed radiation dose using the sole radiographic pelvimetry technique employed in Sweden.
• Calculation of estimated radiation risk based on measured dose data.
• Comparison of estimated risks with the annual incidence of childhood malignancy.

Main Results:

• The study presents specific absorbed radiation dose measurements for the radiographic pelvimetry method used in Sweden.
• The estimated radiation risk is calculated as 1 case of childhood malignancy per 50,000 pelvimetries.
• This risk level corresponds to approximately 4 years of routine radiographic pelvimetry use in Sweden.

Conclusions:

• The radiation risk associated with radiographic pelvimetry is quantifiable and relatively low.
• The findings support the ongoing scientific evaluation of radiographic pelvimetry's clinical utility.
• Maternal radiation risk is estimated to be one-tenth of the fetal risk.