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Congenital Malformation Associated with Abdominopelvic Computed Tomography Radiation Exposure During Pregnancy: A Nationwide Population-Based Study

Fetal risk by computed tomography radiation exposure during pregnancy: a nationwide population-based study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
CRIS
Registry ID
KCT0011189
Enrollment
5000000
Registered
2025-11-21
Start date
2026-02-01
Completion date
Unknown
Last updated
2026-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

None listed

Sponsors

Seoul National University Bundang Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: We included mother-child pairs with live births from January 1, 2011, through December 31, 2023 in South Korea.

Exclusion criteria

Exclusion criteria: Participants were excluded if they met any of the following criteria: • Mother who underwent abdominopelvic CT during the 2nd or 3rd trimester. • Child had teratogenic/genetic syndromes, microdeletions, and chromosomal abnormalities. • Mother had a history of taking known teratogenic medications.

Design outcomes

Primary

MeasureTime frame
Major congenital malformations—

Secondary

MeasureTime frame
• System/organ-specific malformations: (1) nervous system; (2) eye; (3) ear, face, and neck; (4) heart; (5) respiratory system; (6) oral cleft; (7) digestive system; (8) abdominal wall; (9) urinary system; (10) genital organs; (11) limb; and (12) other malformations.; •Congenital heart defects -Severe congenital heart defects subgroup—

Countries

Korea, Republic of

Contacts

Public ContactJinhee Hwang

Seoul National University Bundang Hospital

jinijinhee5@snu.ac.kr+82-31-787-7607

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Apr 17, 2026