Conceptually, plan optimization proceeds as follows. For each treatment field, a beams-eye-view of the target is used to divide the beam into beamlets. For an 80-leaf MLC with leaves that project to 1 cm at isocenter, the beamlets are 1 cm x 1 cm. In the figure, 1 field is divided into 37 beamlets. Note that beamlets that do not intersect the target are discarded.
Jan 31, 2013 - Early palliative care clinic visits, integrated with standard oncologic care for patients with metastatic lung cancer, emphasize symptom management, coping, and psychosocial aspects of illness, according to research published online Jan. 28 in JAMA Internal Medicine.
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Apr 30, 2012