PRIMARY OBJECTIVES:
I. The purpose of this study is to perform a pilot feasibility study on 3-dimensional (3D) ultrasound imaging of liver metastases and to evaluate whether perfusion characteristics (measurements of blood-flow) of hepatic metastases can predict tumor response to treatment in patients with liver metastases. The investigators long term goal is to assess whether early perfusion changes at 2 weeks after chemotherapy initiation can be used as a non-invasive early biomarker for treatment response assessment.
OUTLINE:
Patients undergo 3D dynamic contrast-enhanced ultrasound imaging before initiation of chemotherapy, at 2 weeks, and at 2 months.
