Evidence map›Paper›PMID 19022995›Full record

ArticleJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine2008

A method for assessing the microvasculature in a murine tumor model using contrast-enhanced ultrasonography.

Mary E Loveless, Xia Li, Jessica Huamani, Andrej Lyshchik, Benoit Dawant, Dennis Hallahan, John C Gore, Thomas E Yankeelov

Abstract readEvaluation Study
In one paragraph

Article in Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.5field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. High-frequency Ultrasound Imaging of Mouse Cervical Lymph Nodes.Journal of visualized experiments : JoVE · 2015
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Mary E LovelessInstitute of Imaging Science, Vanderbilt University, Nashville, TN 37232-2675, USA.
Xia Li
Jessica Huamani
Andrej Lyshchik
Benoit Dawant
Dennis Hallahan
John C Gore
Thomas E Yankeelov
Vanderbilt University · US

Funding

Tumor Immunology and Microenvironment Research ProgramP30CA068485 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI MATTHEW J TYSKA · 1995 to 2026
$172.8M
Vanderbilt In Vivo Cellular and Molecular Imaging CenterP50CA128323 · NCI · VANDERBILT UNIVERSITY · PI SHYR, YU · 2008 to 2012
$6.8M
South-Eastern Center for Imaging Animal Models of CancerU24CA126588 · NCI · VANDERBILT UNIVERSITY · PI GORE, JOHN C · 2007 to 2011
$2.1M
PROTON RELAXATION AND CONTRAST MECHANISMS IN MRIR01EB000214 · NIBIB · YALE UNIVERSITY · PI GORE, JOHN C · 2002 to 2008
$2.1M
Predoctoral Training Program in Biomedical ImagingT32EB003817 · NIBIB · VANDERBILT UNIVERSITY · PI GORE, JOHN C · 2004 to 2008
$1.3M
MRI Evaluation of Tumor Growth and Treatment ResponseK25EB005936 · NIBIB · VANDERBILT UNIVERSITY · PI YANKEELOV, THOMAS E · 2005 to 2009
$735k
NCI NIH HHS P30 CA068485NCI NIH HHS P50 CA128323NCI NIH HHS U24 CA126588NIBIB NIH HHS 1K25 EB005936-01NIBIB NIH HHS 2R01 EB000214-15A1NIBIB NIH HHS 5 T32 EB003817NIBIB NIH HHS K25 EB005936NIBIB NIH HHS R01 EB000214NIBIB NIH HHS T32 EB003817
6 · The paper itself

Abstract

objectiveThe purpose of this study was to develop a method for assessing tumor vascularity in a preclinical model of breast cancer using contrast-enhanced ultrasonography.

methodsEight mice were injected with 67NR breast cancer cells on their hind limbs and imaged with ultrasonography 8 days later. Mice were injected with an ultrasound contrast agent (UCA), and a sequence of images of the resultant backscattered echoes was recorded before and after high-power "destruction" pulses for each of multiple parallel planes. From these, data maps of the maximum contrast enhancement (within each time course) were constructed for each pixel, which enabled reconstruction of high-resolution coregistered sections into a 3-dimensional (3D) volume reflecting tumor vascularity. Additional studies were performed to determine the duration and repeatability of image enhancement, and images were correlated with conventional 3D power Doppler measurements.

resultsThe lifetime of the UCA in vivo was found to be 4.3 +/- 1.09 minutes (mean +/- SD). The 3D contrast-enhanced ultrasonographic technique produced images that correlated well with power Doppler images in specific regions but also depicted additional regions of flow surrounding the power Doppler signal. The mean correlation coefficient between voxel measurements of the central slice for each animal was 0.64 +/- 0.07 (P < .01). In addition, sequential studies in each animal were reproducible.

conclusionsA method producing high-resolution volumetric assessments of tumor vascularity in a preclinical model of breast cancer is shown that correlates with other ultrasonographic measures of blood flow, which may provide greater sensitivity to the microvasculature.

Indexed as

MicrobubblesAnimalsBreast NeoplasmsContrast MediaDisease Models, AnimalImage EnhancementImaging, Three-DimensionalMiceMice, NudeMicrovesselsNeovascularization, PathologicReproducibility of ResultsSensitivity and SpecificityUltrasonographyContrast Media

Identifiers

PMID19022995
PMCPMC2649799
OpenAlexW2147726273

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.