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Indicators of the maximum radiation dose to the skin during percutaneous coronary intervention in different target vessels
Author(s) -
Chida Koichi,
Saito Haruo,
Kagaya Yutaka,
Kohzuki Masahiro,
Takai Yoshihiro,
Takahashi Shoki,
Yamada Shogo,
Zuguchi Masayuki
Publication year - 2006
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/ccd.20830
Subject(s) - medicine , conventional pci , percutaneous coronary intervention , circumflex , dose area product , artery , fluoroscopy , right coronary artery , radial artery , nuclear medicine , cardiology , radiology , coronary angiography , myocardial infarction
Objectives : To evaluate whether the maximum radiation dose to the patient's skin (MSD) can be estimated during percutaneous coronary intervention (PCI) procedures, we investigated the relationship between the MSD and fluoroscopic time, dose‐area product (DAP), and body weight, separately analyzing the relationships for different target vessels. Background : Many cases of skin injury caused by excessive radiation exposure during cardiac intervention procedures have been reported. However, real‐time maximum‐dose monitoring of the skin is unavailable for many cardiac intervention procedures. Methods : We studied 197 consecutive PCI procedures that involved a single target vessel and were conducted. The DAP was measured, and the MSD was calculated by a skin‐dose mapping software program (Caregraph). The target vessels of the PCI procedures were divided into four groups based on the AHA classification system: AHA 5–10, left anterior descending artery domain (LAD), AHA 11–15, left circumflex artery domain (LCx), AHA 1–3 = R 1–3, and AHA 4 = R 4. Results : The correlation coefficient ( r ) between the MSD and fluoroscopic time was higher for the right coronary artery (RCA) vessels (R 1–3, 0.852; R 4, 0.715) than for the left coronary artery (LCA) vessels (LAD, 0.527; LCx, 0.646), and the r value between the MSD and DAP was higher for the RCA vessels (R 1–3, 0.871; R 4, 0.898) than for the LCA vessels (LAD, 0.628; LCx, 0.694). Similarly, the correlation coefficient between the MSD and weight × fluoroscopic time (WFP) was higher for the RCA vessels (R 1–3, 0.874; R 4, 0.807) than for the LCA vessels (LAD, 0.551; LCx, 0.735). Conclusions : The DAP and WFP can be used to estimate the MSD during PCI in the RCA but not in the LCA, especially the LAD. © 2006 Wiley‐Liss, Inc.