caa a22 4500 605493006 CHVBK 20210128100518.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00261-015-0398-8 doi (NATIONALLICENCE)springer-10.1007/s00261-015-0398-8 Effect of radiologists' experience with an adaptive statistical iterative reconstruction algorithm on detection of hypervascular liver lesions and perception of image quality [Elektronische Daten] [Daniele Marin, Achille Mileto, Rajan Gupta, Lisa Ho, Brian Allen, Kingshuk Choudhury, Rendon Nelson] Purpose: To prospectively evaluate whether clinical experience with an adaptive statistical iterative reconstruction algorithm (ASiR) has an effect on radiologists' diagnostic performance and confidence for the diagnosis of hypervascular liver tumors, as well as on their subjective perception of image quality. Materials and methods: Forty patients, having 65 hypervascular liver tumors, underwent contrast-enhanced MDCT during the hepatic arterial phase. Image datasets were reconstructed with filtered backprojection algorithm and ASiR (20%, 40%, 60%, and 80% blending). During two reading sessions, performed before and after a three-year period of clinical experience with ASiR, three readers assessed datasets for lesion detection, likelihood of malignancy, and image quality. Results: For all reconstruction algorithms, there was no significant change in readers' diagnostic accuracy and sensitivity for the detection of liver lesions, between the two reading sessions. However, a 60% ASiR dataset yielded a significant improvement in specificity, lesion conspicuity, and confidence for lesion likelihood of malignancy during the second reading session (P<0.0001). The 60% ASiR dataset resulted in significant improvement in readers' perception of image quality during the second reading session (P<0.0001). Conclusions: Clinical experience using an ASiR algorithm may improve radiologists' diagnostic performance for the diagnosis of hypervascular liver tumors, as well as their perception of image quality. Springer Science+Business Media New York, 2015 Adaptive statistical iterative reconstruction nationallicence Filtered backprojection nationallicence Hypervascular liver tumors nationallicence Diagnostic accuracy nationallicence Image quality nationallicence Marin Daniele Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut Mileto Achille Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut Gupta Rajan Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut Ho Lisa Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut Allen Brian Department of Radiology, Wake Forest Baptist Medical Center, 27157, Winston-Salem, NC, USA aut Choudhury Kingshuk Carl E. Ravin Advanced Imaging Laboratories (RAI Labs), Duke University Medical Center, 27710, Durham, NC, USA aut Nelson Rendon Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2850-2860 0942-8925 40:7<2850 2015 40 261 https://doi.org/10.1007/s00261-015-0398-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-015-0398-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Marin Daniele Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Mileto Achille Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Gupta Rajan Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Ho Lisa Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Allen Brian Department of Radiology, Wake Forest Baptist Medical Center, 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 700 1- Choudhury Kingshuk Carl E. Ravin Advanced Imaging Laboratories (RAI Labs), Duke University Medical Center, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Nelson Rendon Department of Radiology, Duke University Medical Center, Erwin Road, 27710, Durham, NC, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2850-2860 0942-8925 40:7<2850 2015 40 261