Conclusion
In conclusion, lung perfusion CT is a promising and feasible method for distinguishing benign from malignant cavity.
Thus, it could be very beneficial in allowing for noninvasive diagnoses of cavitary mass and in planning the proper therapeutic planning.
One of the important applications of this technique is the indication of a highly perfused area, which could be used to guide biopsy to the site of the most active tumour, reducing the chance of sampling error.
In future, pre and post treatment tumor response can be monitored by using perfusion imaging