TY - JOUR
T1 - Noise reduction angiographic imaging technology reduces radiation dose during bronchial artery embolization
AU - Spink, C.
AU - Avanesov, M.
AU - Schmidt, T.
AU - Grass, M.
AU - Schoen, G.
AU - Adam, G.
AU - Koops, A.
AU - Ittrich, H.
AU - Bannas, P.
N1 - Publisher Copyright:
© 2017
PY - 2017/12
Y1 - 2017/12
N2 - Purpose Comparison of radiation doses in patients undergoing angiographic bronchial artery embolization (BAE) before and after a noise reduction imaging technology upgrade. Methods We performed a retrospective study of 70 patients undergoing BAE. Procedures were performed before (n = 32) and after (n = 38) the technology upgrade containing additional filters and improved image-processing. Cumulative air kerma (AK), cumulative dose area product (DAP), number of exposure frames, total fluoroscopy time and amount of contrast agent were recorded. Mean values were calculated and compared using two-tailed t-tests. DSA image quality was assessed independently by two blinded readers and compared using the Wilcoxon signed-rank test. Results Using the new technology resulted in a significant reduction of 59% in DAP (149.2 (103.1–279.1) vs. 54.8 (38.2–100.7) Gy*cm2, p < 0.001) and a significant reduction of 60% for AK (1.3 (0.6-1.9) vs. 0.5 (0.3-0.9) Gy, p < 0.001) in comparison to procedures before the upgrade. There was no significant difference between the number of exposure frames in both groups (251 ± 181 vs. 254 ± 133 frames, p = 0.07), time of fluoroscopy (28.8 (18.5-50.4) vs. 28.1 (23.3–38.7) min, p = 0.73), or the amount of contrast agent used (139.5 ± 70.8 vs. 163.1 ± 63.1 ml, p = 0.11). No significant difference regarding image quality could be detected (3 (2,3) vs. 3 (2–4), p = 0.64). Conclusions The new angiographic noise reduction technology significantly decreases the radiation dose during bronchial artery embolization without compromising image quality or increasing time of fluoroscopy or contrast volume.
AB - Purpose Comparison of radiation doses in patients undergoing angiographic bronchial artery embolization (BAE) before and after a noise reduction imaging technology upgrade. Methods We performed a retrospective study of 70 patients undergoing BAE. Procedures were performed before (n = 32) and after (n = 38) the technology upgrade containing additional filters and improved image-processing. Cumulative air kerma (AK), cumulative dose area product (DAP), number of exposure frames, total fluoroscopy time and amount of contrast agent were recorded. Mean values were calculated and compared using two-tailed t-tests. DSA image quality was assessed independently by two blinded readers and compared using the Wilcoxon signed-rank test. Results Using the new technology resulted in a significant reduction of 59% in DAP (149.2 (103.1–279.1) vs. 54.8 (38.2–100.7) Gy*cm2, p < 0.001) and a significant reduction of 60% for AK (1.3 (0.6-1.9) vs. 0.5 (0.3-0.9) Gy, p < 0.001) in comparison to procedures before the upgrade. There was no significant difference between the number of exposure frames in both groups (251 ± 181 vs. 254 ± 133 frames, p = 0.07), time of fluoroscopy (28.8 (18.5-50.4) vs. 28.1 (23.3–38.7) min, p = 0.73), or the amount of contrast agent used (139.5 ± 70.8 vs. 163.1 ± 63.1 ml, p = 0.11). No significant difference regarding image quality could be detected (3 (2,3) vs. 3 (2–4), p = 0.64). Conclusions The new angiographic noise reduction technology significantly decreases the radiation dose during bronchial artery embolization without compromising image quality or increasing time of fluoroscopy or contrast volume.
KW - Angiography
KW - Bronchial artery embolization
KW - Image-processing technology
KW - Interventional radiology
KW - Radiation dosage
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U2 - 10.1016/j.ejrad.2017.10.029
DO - 10.1016/j.ejrad.2017.10.029
M3 - Article
C2 - 29153361
AN - SCOPUS:85032667380
SN - 0720-048X
VL - 97
SP - 115
EP - 118
JO - European Journal of Radiology
JF - European Journal of Radiology
ER -