TY - JOUR
T1 - Characteristics of a New X-Ray Imaging System for Interventional Procedures
T2 - Improved Image Quality and Reduced Radiation Dose
AU - Schernthaner, Ruediger E.
AU - Haroun, Reham R.
AU - Nguyen, Sonny
AU - Duran, Rafael
AU - Sohn, Jae Ho
AU - Sahu, Sonia
AU - Chapiro, Julius
AU - Zhao, Yan
AU - Radaelli, Alessandro
AU - van der Bom, Imramsjah M.
AU - Mauti, Maria
AU - Hong, Kelvin
AU - Geschwind, Jean François H.
AU - Lin, Ming De
N1 - Funding Information:
Open access funding provided by Medical University of Vienna. Support for this work was provided by the Max Kade Foundation, Inc., NY, USA, NIH/NCI R01 CA160771, Philips Research North America, Cambridge, MA, USA. Ruediger E Schernthaner: Grant support: Max Kade Foundation, Inc., NY, USA. Alessandro Radaelli, Imramsjah M. van der Bom and Maria Mauti: employee: Philips Healthcare, Best, the Netherlands. Jean-François H Geschwind: Grant/Research support: Boston Scientific, BTG, Geurbet, Philips, Consultant for Bayer, Boston Scientific, BTG, Ethicon/J&J, Guerbet, Merck, Philips, Terumo, and Founder and CEO PreScience Labs, LLC. MingDe Lin: Grant Support: NIH; employee: Philips Research North America, Cambridge, MA, USA. Reham R. Haroun, Sonny Nguyen, Rafael Duran, Jae Ho Sohn, Sonia Sahu, Julius Chapiro, Yan Zhao and Kelvin Hong: Nothing to disclose.
Funding Information:
Acknowledgements Support for this work was provided by the Max Kade Foundation, Inc., NY, USA, NIH/NCI R01 CA160771, Philips Research North America, Cambridge, MA, USA.
Publisher Copyright:
© 2017, The Author(s).
PY - 2018/3/1
Y1 - 2018/3/1
N2 - Purpose: To compare image quality and radiation exposure between a new angiographic imaging system and the preceding generation system during uterine artery embolization (UAE). Materials and Methods: In this retrospective, IRB-approved two-arm study, 54 patients with symptomatic uterine fibroids were treated with UAE on two different angiographic imaging systems. The new system includes optimized acquisition parameters and real-time image processing algorithms. Air kerma (AK), dose area product (DAP) and acquisition time for digital fluoroscopy (DF) and digital subtraction angiography (DSA) were recorded. Body mass index was noted as well. DF image quality was assessed objectively by image noise measurements. DSA image quality was rated by two blinded, independent readers on a four-rank scale. Statistical differences were assessed with unpaired t tests and Wilcoxon rank-sum tests. Results: There was no significant difference between the patients treated on the new (n = 36) and the old system (n = 18) regarding age (p = 0.10), BMI (p = 0.18), DF time (p = 0.35) and DSA time (p = 0.17). The new system significantly reduced the cumulative AK and DAP by 64 and 72%, respectively (median 0.58 Gy and 145.9 Gy*cm2 vs. 1.62 Gy and 526.8 Gy*cm2, p < 0.01 for both). Specifically, DAP for DF and DSA decreased by 59% (75.3 vs. 181.9 Gy*cm2, p < 0.01) and 78% (67.6 vs. 312.2 Gy*cm2, p < 0.01), respectively. The new system achieved a significant decrease in DF image noise (p < 0.01) and a significantly better DSA image quality (p < 0.01). Conclusions: The new angiographic imaging system significantly improved image quality and reduced radiation exposure during UAE procedures.
AB - Purpose: To compare image quality and radiation exposure between a new angiographic imaging system and the preceding generation system during uterine artery embolization (UAE). Materials and Methods: In this retrospective, IRB-approved two-arm study, 54 patients with symptomatic uterine fibroids were treated with UAE on two different angiographic imaging systems. The new system includes optimized acquisition parameters and real-time image processing algorithms. Air kerma (AK), dose area product (DAP) and acquisition time for digital fluoroscopy (DF) and digital subtraction angiography (DSA) were recorded. Body mass index was noted as well. DF image quality was assessed objectively by image noise measurements. DSA image quality was rated by two blinded, independent readers on a four-rank scale. Statistical differences were assessed with unpaired t tests and Wilcoxon rank-sum tests. Results: There was no significant difference between the patients treated on the new (n = 36) and the old system (n = 18) regarding age (p = 0.10), BMI (p = 0.18), DF time (p = 0.35) and DSA time (p = 0.17). The new system significantly reduced the cumulative AK and DAP by 64 and 72%, respectively (median 0.58 Gy and 145.9 Gy*cm2 vs. 1.62 Gy and 526.8 Gy*cm2, p < 0.01 for both). Specifically, DAP for DF and DSA decreased by 59% (75.3 vs. 181.9 Gy*cm2, p < 0.01) and 78% (67.6 vs. 312.2 Gy*cm2, p < 0.01), respectively. The new system achieved a significant decrease in DF image noise (p < 0.01) and a significantly better DSA image quality (p < 0.01). Conclusions: The new angiographic imaging system significantly improved image quality and reduced radiation exposure during UAE procedures.
KW - Image quality enhancement
KW - Interventional radiology
KW - Radiation dosage
UR - http://www.scopus.com/inward/record.url?scp=85032691971&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85032691971&partnerID=8YFLogxK
U2 - 10.1007/s00270-017-1821-z
DO - 10.1007/s00270-017-1821-z
M3 - Article
C2 - 29090348
AN - SCOPUS:85032691971
SN - 0174-1551
VL - 41
SP - 502
EP - 508
JO - Cardiovascular and interventional radiology
JF - Cardiovascular and interventional radiology
IS - 3
ER -