Contrast and quantitative ultrasound mapping of heterogeneous tumor function and structure

Jerome Griffon, Delphine Le Guillou-Buffello, Oumeima Laifa, Maxime Doury, Alexandre Dizeux, Michele Lamuraglia, Michael Oelze, S. Lori Bridal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This preclinical study on two data sets looks at the local tumor heterogeneity by analyzing information from three techniques: Dynamic Contrast-Enhanced Ultrasound (DCE-US); Immunohistochemistry (IHC) and Quantitative Ultrasound, (QUS). The first data set included DCE-US sequences and whole slice IHC data acquired 14 days after the start of an antiangiogenic (AA1) therapy with Pazopanib in mice with subcutaneous murine colorectal carcinoma tumors, CT26, (AA1, n = 7; Control C1, n = 8). The second data set included DCE-US and QUS data acquired 13 days after the start of an AA2 therapy with Sunitinib in mice with subcutaneous murine Lewis Lung Carcinoma (LLC) tumors (cohort 1: AA2a, n = 6; C2a, n = 5 and cohort 2: AA2b, n = 12; C2b, n = 2). DCE-US data were used to identify vascular (V) and nonvascular (NV) zones inside tumors. IHC was used to assess the Number of Nuclei per mm2 (NU), the Number of T Lymphocyte per mm2 (NTL), the percent area of Apoptosis (AP) and percent area of Vascular Endothelium (VE). QUS parameters of Effective Scatterer Diameter (ESD, urn) and Effective Acoustic Concentration (EAC, dB/cm) were measured. IHC and QUS parameters were then compared between V, NV and Whole Tumor (WT) zones. All the parameters of the IHC features were higher in the V zone compared to the NV zone (for groups AA1 and C1). Furthermore, the values of the WT were dominated by that of the V zones because the majority (100 to 72% surface area) of most of the tumors was well perfused. A higher level of VE marking was observed in the C1 group relative to the AA1 group in NV zones. For QUS, only one parameter (EAC) showed an apparent difference between the V and NV zones (C2a). However, this difference was no longer detectable after addition of the second cohort in the analysis. The differences in tumor microstructure observed with fflC between V and NV zone show that there are local properties within tumor that vary along with the vascularization.

Original languageEnglish (US)
Title of host publication2017 IEEE International Ultrasonics Symposium, IUS 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781538633830
DOIs
StatePublished - Oct 31 2017
Event2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, United States
Duration: Sep 6 2017Sep 9 2017

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Other

Other2017 IEEE International Ultrasonics Symposium, IUS 2017
CountryUnited States
CityWashington
Period9/6/179/9/17

Keywords

  • Contrast-enhanced ultrasound
  • Quantitative Uhrasound
  • Tissue characterization
  • Tumor heterogeneity

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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  • Cite this

    Griffon, J., Le Guillou-Buffello, D., Laifa, O., Doury, M., Dizeux, A., Lamuraglia, M., Oelze, M., & Bridal, S. L. (2017). Contrast and quantitative ultrasound mapping of heterogeneous tumor function and structure. In 2017 IEEE International Ultrasonics Symposium, IUS 2017 [8092250] (IEEE International Ultrasonics Symposium, IUS). IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2017.8092250