DELINEATION OF POST-PROCEDURE ABLATION REGIONS WITH ELECTRODE DISPLACEMENT ELASTOGRAPHY WITH A COMPARISON TO ACOUSTIC RADIATION FORCE IMPULSE IMAGING

Wenjun Yang; Tomy Varghese; Timothy Ziemlewicz; Marci Alexander; Meghan Lubner; James Louis Hinshaw; Shane Wells; Fred T. Lee

doi:10.1016/j.ultrasmedbio.2017.04.021

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DELINEATION OF POST-PROCEDURE ABLATION REGIONS WITH ELECTRODE DISPLACEMENT ELASTOGRAPHY WITH A COMPARISON TO ACOUSTIC RADIATION FORCE IMPULSE IMAGING

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DELINEATION OF POST-PROCEDURE ABLATION REGIONS WITH ELECTRODE DISPLACEMENT ELASTOGRAPHY WITH A COMPARISON TO ACOUSTIC RADIATION FORCE IMPULSE IMAGING

Wenjun Yang, Tomy Varghese, Timothy Ziemlewicz, Marci Alexander, Meghan Lubner, James Louis Hinshaw, Shane Wells and Fred T. Lee

Ultrasound in medicine & biology, Vol.43(9), pp.1953-1962

09/01/2017

DOI: 10.1016/j.ultrasmedbio.2017.04.021

PMCID: PMC5523876

PMID: 28595851

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https://www.ncbi.nlm.nih.gov/pmc/articles/5523876View

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Abstract

We compared a quasi-static ultrasound elastography technique, referred to as electrode displacement elastography (EDE), with acoustic radiation force impulse imaging (ARFI) for monitoring microwave ablation (MWA) procedures on patients diagnosed with liver neoplasms. Forty-nine patients recruited to this study underwent EDE and ARFI with a Siemens Acuson S2000 system after an MWA procedure. On the basis of visualization results from two observers, the ablated region in ARFI images was recognizable on 20 patients on average in conjunction with B-mode imaging, whereas delineable ablation boundaries could be generated on 4 patients on average. With EDE, the ablated region was delineable on 40 patients on average, with less imaging depth dependence. Study of tissue-mimicking phantoms revealed that the ablation region dimensions measured on EDE and ARFI images were within 8%, whereas the image contrast and contrast-to-noise ratio with EDE was two to three times higher than that obtained with ARFI. This study indicated that EDE provided improved monitoring results for minimally invasive MWA in clinical procedures for liver cancer and metastases. (C) 2017 World Federation for Ultrasound in Medicine & Biology.

Acoustics

Life Sciences & Biomedicine

Radiology, Nuclear Medicine & Medical Imaging

Science & Technology

Technology

Details

Title: Subtitle: DELINEATION OF POST-PROCEDURE ABLATION REGIONS WITH ELECTRODE DISPLACEMENT ELASTOGRAPHY WITH A COMPARISON TO ACOUSTIC RADIATION FORCE IMPULSE IMAGING
Creators: Wenjun Yang - Univ Wisconsin, Dept Med Phys, Sch Med & Publ Hlth, 1530 Med Sci Ctr, Madison, WI 53706 USA
Tomy Varghese - University of Wisconsin–Madison
Timothy Ziemlewicz - University of Wisconsin–Madison
Marci Alexander - University of Wisconsin–Madison
Meghan Lubner - University of Wisconsin–Madison
James Louis Hinshaw - University of Wisconsin–Madison
Shane Wells - University of Wisconsin–Madison
Fred T. Lee - University of Wisconsin–Madison
Resource Type: Journal article
Publication Details: Ultrasound in medicine & biology, Vol.43(9), pp.1953-1962
DOI: 10.1016/j.ultrasmedbio.2017.04.021
PMID: 28595851
PMCID: PMC5523876
NLM abbreviation: Ultrasound Med Biol
ISSN: 0301-5629
eISSN: 1879-291X
Publisher: Elsevier
Number of pages: 10
Grant note: R01CA112192 / NATIONAL CANCER INSTITUTE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Cancer Institute (NCI) 2 R01 CA112192 / National Institutes of Health; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA
Language: English
Date published: 09/01/2017
Academic Unit: Radiation Oncology
Record Identifier: 9984697640702771

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