Purpose
INTRODUCTION
An increasing number of vascular-modulating drugs are used in the treatment of cancers, which in turn increase demand for noninvasive methods of assessing tumor vascularity in vivo. Perfusion CT is a new technology that allows measurement of tumor vascular physiology . Apart from being noninvasive and fast, it can be repeated at regular intervals to assess tumor response to antiangiogenic therapy.
AIMS AND OBJECTIVES
To evaluate lung perfusion studies in the differentiation of cavitary mass.
To assess the predictive value of perfusion parameters within the cavity wall in differentiating cavitary mass.