Treatment planning of abdominal lesions

Abstract

The CyberKnife ® (Accuray Incorporated, Sunnyvale, CA) was initially used to treat lesions of the central nervous system (CNS), but in recent years the most rapid increases in utilization have been in the treatment of soft tissue lesions outside the skull and spine. Soft tissue tumors may be broadly classified as lung, abdominal, or pelvic tumors. Like lung tumors, abdominal tumors are sufficiently close to the diaphragm that they normally require correction for motion due to breathing, but the large number of critical organs in the abdomen raises treatment issues that are common to pelvic lesions that move little with respiration, such as prostate adenocarcinoma. © 2007 Springer-Verlag Berlin Heidelberg.