publications by Gregg E. Trahey.

Papers Published

  1. B. J. Fahey and R. C. Nelson and S. J. Hsu and D. P. Bradway and D. M. Dumont and G. E. Trahey, In vivo guidance and assessment of liver radio-frequency ablation with acoustic radiation force elastography, Ultrasound In Medicine And Biology, vol. 34 no. 10 (October, 2008), pp. 1590 -- 1603 .
    (last updated on 2009/09/02)

    The initial results from clinical trials investigating the utility of acoustic radiation force impulse (ARFI) imaging for use with radio-frequency ablation (RFA) procedures in the liver are presented. To date, data have been collected from 6 RFA procedures in 5 unique patients. Large displacement contrast was observed in ARFI images of both pre-ablation malignancies (mean 7.5 dB, range 5.7-11.9 dB) and post-ablation thermal lesions (mean 6.2 dB, range 5.1-7.5 dB). In general, ARFI images provided superior boundary definition of structures relative to the use of conventional sonography alone. Although further investigations are required, initial results are encouraging and demonstrate the clinical promise of the ARFI method for use in many stages of RFA procedures. (E-mail: (C) 2008 World Federation for Ultrasound in Medicine & Biology.