Radiation dose reduction during transjugular intrahepatic portosystemic shunt implantation using a new imaging technology
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Radiation dose reduction during transjugular intrahepatic portosystemic shunt implantation using a new imaging technology. / Spink, C; Avanesov, M; Schmidt, T; Grass, M; Schoen, G; Adam, G; Bannas, P; Koops, A.
in: EUR J RADIOL, Jahrgang 86, 01.2017, S. 284-288.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Radiation dose reduction during transjugular intrahepatic portosystemic shunt implantation using a new imaging technology
AU - Spink, C
AU - Avanesov, M
AU - Schmidt, T
AU - Grass, M
AU - Schoen, G
AU - Adam, G
AU - Bannas, P
AU - Koops, A
N1 - Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.
PY - 2017/1
Y1 - 2017/1
N2 - OBJECTIVE: To compare patient radiation dose in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS) implantation before and after an imaging-processing technology upgrade.METHODS: In our retrospective single-center-study, cumulative air kerma (AK), cumulative dose area product (DAP), total fluoroscopy time and contrast agent were collected from an age- and BMI-matched collective of 108 patients undergoing TIPS implantation. 54 procedures were performed before and 54 after the technology upgrade. Mean values were calculated and compared using two-tailed t-tests. Two blinded, independent readers assessed DSA image quality using a four-rank likert scale and the Wilcoxcon test.RESULTS: The new technology demonstrated a significant reduction of 57% of mean DAP (402.8 vs. 173.3Gycm(2), p<0.001) and a significant reduction of 58% of mean AK (1.7 vs. 0.7Gy, p<0.001) compared to the precursor technology. Time of fluoroscopy (26.4 vs. 27.8min, p=0.45) and amount of contrast agent (109.4 vs. 114.9ml, p=0.62) did not differ significantly between the two groups. The DSA image quality of the new technology was not inferior (2.66 vs. 2.77, p=0.56).CONCLUSIONS: In our study the new imaging technology halved radiation dose in patients undergoing TIPS maintaining sufficient image quality without a significant increase in radiation time or contrast consumption.
AB - OBJECTIVE: To compare patient radiation dose in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS) implantation before and after an imaging-processing technology upgrade.METHODS: In our retrospective single-center-study, cumulative air kerma (AK), cumulative dose area product (DAP), total fluoroscopy time and contrast agent were collected from an age- and BMI-matched collective of 108 patients undergoing TIPS implantation. 54 procedures were performed before and 54 after the technology upgrade. Mean values were calculated and compared using two-tailed t-tests. Two blinded, independent readers assessed DSA image quality using a four-rank likert scale and the Wilcoxcon test.RESULTS: The new technology demonstrated a significant reduction of 57% of mean DAP (402.8 vs. 173.3Gycm(2), p<0.001) and a significant reduction of 58% of mean AK (1.7 vs. 0.7Gy, p<0.001) compared to the precursor technology. Time of fluoroscopy (26.4 vs. 27.8min, p=0.45) and amount of contrast agent (109.4 vs. 114.9ml, p=0.62) did not differ significantly between the two groups. The DSA image quality of the new technology was not inferior (2.66 vs. 2.77, p=0.56).CONCLUSIONS: In our study the new imaging technology halved radiation dose in patients undergoing TIPS maintaining sufficient image quality without a significant increase in radiation time or contrast consumption.
U2 - 10.1016/j.ejrad.2016.11.028
DO - 10.1016/j.ejrad.2016.11.028
M3 - SCORING: Journal article
C2 - 28027761
VL - 86
SP - 284
EP - 288
JO - EUR J RADIOL
JF - EUR J RADIOL
SN - 0720-048X
ER -
