Evaluating the maximum patient radiation dose in cardiac interventional procedures

Mamoru Kato, Koichi Chida, Tadaya Sato, Hajime Oosaka, Tetsuo Tosa, Ken Kadowaki

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Many of the X-ray systems that are used for cardiac interventional radiology provide no way to evaluate the patient maximum skin dose (MSD). The authors report a new method for evaluating the MSD by using the cumulative patient entrance skin dose (ESD), which includes a back-scatter factor and the number of cineangiography frames during percutaneous coronary intervention (PCI). Four hundred consecutive PCI patients (315 men and 85 women) were studied. The correlation between the cumulative ESD and number of cineangiography frames was investigated. The irradiation and overlapping fields were verified using dose-mapping software. A good correlation was found between the cumulative ESD and the number of cineangiography frames. The MSD could be estimated using the proportion of cineangiography frames used for the main angle of view relative to the total number of cineangiography frames and multiplying this by the cumulative ESD. The average MSD (3.0±1.9 Gy) was lower than the average cumulative ESD (4.6±2.6 Gy). This method is an easy way to estimate the MSD during PCI.

本文言語English
論文番号ncq286
ページ(範囲)69-73
ページ数5
ジャーナルRadiation protection dosimetry
143
1
DOI
出版ステータスPublished - 2011 1

ASJC Scopus subject areas

  • 放射線技術および超音波技術
  • 放射線
  • 放射線学、核医学およびイメージング
  • 公衆衛生学、環境および労働衛生

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