Jingzhi Li1, Laurence Needleman2, Ji-Bin Liu2, Andrej Lyshchik2, Flemming Forsberg2, Maria Stanczak2, James McAlister2, John Eisenbrey3. 1. Thomas Jefferson University, Department of Radiology, 132 South 10th St, Philadelphia PA 19709; Department of Vascular Ultrasonography, Xuanwu Hospital, Capital Medical University, Beijing (100053), China. 2. Thomas Jefferson University, Department of Radiology, 132 South 10th St, Philadelphia PA 19709. 3. Thomas Jefferson University, Department of Radiology, 132 South 10th St, Philadelphia PA 19709. Electronic address: John.Eisenbrey@jefferson.edu.
Abstract
RATIONALE AND OBJECTIVES: To explore the influence of data parsing (either selection of frames at set time intervals or by an experienced sonographer) of contrast-enhanced ultrasound (CEUS) exams on physician diagnoses and confidence levels. MATERIALS AND METHODS: Forty consecutive CEUS exams consisting of 10 cases each of indeterminate liver lesions, indeterminate renal lesions, renal cell carcinoma postablation follow-up, and hepatocellular carcinoma postchemoembolization follow-up were selected for analysis. Exams were parsed into sets consisting of five images selected by the performing sonographer and sets containing systematically stored frames every 10, 30, and 60 seconds. Three blinded physicians then reviewed the cine loop and each set of images in randomized order and provided a diagnosis and confidence level. RESULTS: For all clinical applications investigated, no statistically significant differences in diagnostic performance measures or reader confidence were observed between review of the entire cine loop and images selected by the performing sonographer (p > 0.42). Diagnostic performance at 10-second intervals did not show statically significant changes compared to the full cine loop review for all applications (p > 0.18), although reader confidence decreased. At 30-60-second intervals, both diagnostic performance and reader confidence showed statistically significant reduction compared to review of the full cine loop (p < 0.045). CONCLUSIONS: Transfer and review of large cine loops from CEUS exams represent a potential barrier to adoption within the United States workflows. This study demonstrates that images selected by a performing trained sonographer may provide the same value without the review time and data storage costs needed for full cine loop review. Parsing by time points reduced reader confidence and diagnostic performance.
RATIONALE AND OBJECTIVES: To explore the influence of data parsing (either selection of frames at set time intervals or by an experienced sonographer) of contrast-enhanced ultrasound (CEUS) exams on physician diagnoses and confidence levels. MATERIALS AND METHODS: Forty consecutive CEUS exams consisting of 10 cases each of indeterminate liver lesions, indeterminate renal lesions, renal cell carcinoma postablation follow-up, and hepatocellular carcinoma postchemoembolization follow-up were selected for analysis. Exams were parsed into sets consisting of five images selected by the performing sonographer and sets containing systematically stored frames every 10, 30, and 60 seconds. Three blinded physicians then reviewed the cine loop and each set of images in randomized order and provided a diagnosis and confidence level. RESULTS: For all clinical applications investigated, no statistically significant differences in diagnostic performance measures or reader confidence were observed between review of the entire cine loop and images selected by the performing sonographer (p > 0.42). Diagnostic performance at 10-second intervals did not show statically significant changes compared to the full cine loop review for all applications (p > 0.18), although reader confidence decreased. At 30-60-second intervals, both diagnostic performance and reader confidence showed statistically significant reduction compared to review of the full cine loop (p < 0.045). CONCLUSIONS: Transfer and review of large cine loops from CEUS exams represent a potential barrier to adoption within the United States workflows. This study demonstrates that images selected by a performing trained sonographer may provide the same value without the review time and data storage costs needed for full cine loop review. Parsing by time points reduced reader confidence and diagnostic performance.
Authors: Jessica G Zarzour; Mark E Lockhart; Janelle West; Eric Turner; Bradford E Jackson; John V Thomas; Michelle L Robbin Journal: J Ultrasound Med Date: 2017-04-21 Impact factor: 2.153
Authors: Stephanie R Wilson; Andrej Lyshchik; Fabio Piscaglia; David Cosgrove; Hyun-Jung Jang; Claude Sirlin; Christoph F Dietrich; Tae Kyoung Kim; Juergen K Willmann; Yuko Kono Journal: Abdom Radiol (NY) Date: 2018-01
Authors: Barbara Schellhaas; Ruediger S Görtz; Lukas Pfeifer; Christian Kielisch; Markus F Neurath; Deike Strobel Journal: Eur J Gastroenterol Hepatol Date: 2017-09 Impact factor: 2.566
Authors: Andrej Lyshchik; Yuko Kono; Christoph F Dietrich; Hyun-Jung Jang; Tae Kyoung Kim; Fabio Piscaglia; Alexander Vezeridis; Juergen K Willmann; Stephanie R Wilson Journal: Abdom Radiol (NY) Date: 2018-04