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Three‐dimensional rotational X‐ray acquisition technique is reducing patients' cancer risk in coronary angiography
Author(s) -
Eloot Liesbeth,
Bacher Klaus,
Steenbeke Femke,
Drieghe Benny,
Gheeraert Peter,
Taeymans Yves,
Thierens Hubert
Publication year - 2013
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.24879
Subject(s) - medicine , angiography , rotational angiography , radiology , coronary angiography , nuclear medicine , radiation exposure , effective dose (radiation) , catheter , myocardial infarction
Objectives The purpose of this study was to assess patient‐specific organ doses and cancer risk with 3D‐rotational acquisitions versus the current standard of multiple single‐plane coronary angiography (CA). Background Catheter‐based CA remains one of the most commonly performed diagnostic invasive procedures delivering a relatively high radiation dose to the patient. With the introduction of flat‐panel technology, three‐dimensional rotational angiography became an alternative for the conventional two‐dimensional angiography. However, limited information is available on the difference in patient radiation exposure with both acquisition techniques. Methods Eighty adult patients (45 males, age 38–93 years) were randomly assigned to the rotational or standard angiography group. Exposure parameters were registered and skin dose distribution was measured during the procedure. Patient‐specific organ doses and related cancer risks were assessed with dedicated software. Results Rotational angiograms were associated with 33% lower KAP‐values (decrease from 49.99 Gycm 2 to 33.37 Gycm 2 , P < 0.001). A significant ( P < 0.001) lower peak skin dose was measured with rotational acquisitions (80 mGy, median) versus planar imaging (172 mGy, median). Moreover, the skin dose was smoothed over the whole chest of the patient. Contrast medium consumption decreased from 104 mL to 73 mL ( P < 0.001) with the use of 3D‐imaging. The reduction in radiation exposure resulted in a corresponding decrease of organ doses. The latter contributed to an overall cancer risk reduction of 21% for males and 50% for females. Conclusions The current study demonstrates that in CA radiation risk reduction is feasible by using a rotational acquisition technique.© 2013 Wiley Periodicals, Inc.