Format

Send to

Choose Destination
See comment in PubMed Commons below
J Ultrasound Med. 2013 Apr;32(4):683-90.

Quantitative assessment of tumor blood flow changes in a murine breast cancer model after adriamycin chemotherapy using contrast-enhanced destruction-replenishment sonography.

Author information

1
Department of Ultrasound, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, China.

Abstract

OBJECTIVES:

The purpose of the study was to detect tumor blood flow changes after chemotherapy with contrast-enhanced destruction-replenishment sonography.

METHODS:

Twenty-four MCF-7 breast cancer-bearing nude mice were included in this study. Animals received either adriamycin or sterile saline and underwent contrast-enhanced sonography before and after treatment using a destruction-replenishment technique. A monoexponential function, y = A(1 - e(-βt)), was used to fit the replenishment kinetics, where the plateau signal intensity A reflects the percent blood volume; the time constant β reflects the average speed of blood; and their product A*β reflects the nutrient blood flow. Tumor blood perfusion was compared to measurements of cell density and microvascular density.

RESULTS:

Volumes of the treated tumors were significantly reduced after 7 days of adriamycin treatment compared with the control tumors (P < .001). Before adriamycin administration, there was no significant difference in blood perfusion between the treated and control groups (P > .05). Treatment with adriamycin resulted in a significant decrease in A, β, and A*β (P <.001) compared with the control tumors. The tumor cell density and microvascular density estimated by pathologic slices were significantly lower in the treated tumors than in the control tumors (P <.001).

CONCLUSIONS:

Quantification of tumor blood flow using contrast-enhanced destruction-replenishment sonography shows the potential to evaluate tumor responses to chemotherapy.

PMID:
23525395
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center