Novel pregnant model phantoms for measurement of foetal radiation dose in x-ray examinations

Yuta Matsunaga, Tomonobu Haba, Masanao Kobayashi, Shoichi Suzuki, Yasuki Asada, Koichi Chida

Research output: Contribution to journalArticlepeer-review

Abstract

This study presents a comparison of novel pregnant model phantoms with a handmade phantom in terms of shape and radiation measurement points to determine which model is more suitable for measuring the foetal radiation dose during x-ray examinations. Novel pregnant model phantoms were constructed using an anthropomorphic phantom in combination with two differently-sized custom-made abdomen phantoms simulating pregnancy, which were constructed from a polyurethane resin. The size and shape of the polyurethane resin were designed based on abdominal sizes and shapes collected from the computed tomography examinations at 18 pregnant patients of one hospital. The handmade pregnant model phantom was constructed using an anthropomorphic phantom and a beach ball containing water. Compared with the handmade phantom, there were additional dose measurement points on the novel pregnant model phantoms. Our model phantoms improved upon the handmade phantom in terms of shape and radiation measurement points. We produced pregnant model phantoms that simulated the shapes and sizes of actual patients for the first time.

Original languageEnglish
Pages (from-to)N12-N21
JournalJournal of Radiological Protection
Volume41
Issue number3
DOIs
Publication statusPublished - 09-2021

All Science Journal Classification (ASJC) codes

  • Waste Management and Disposal
  • Public Health, Environmental and Occupational Health

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