《放射治疗学》双语课件7Pancreas - book.pdf

Clinical Case Exercise Pancreas Features Virtual Fluoroscopy visualization of two different window settings for AP and lateral DRR’s Virtual Simulation creation of beams to avoid kidneys Abdomen Technique - TAD Patient Position Supine Arms above head Immobilization Vac-loc / Alpha Cradle Scan Parameters 3 mm thick x 3 mm index Treatment Plan 3 field Open Study Select Study Select Open Select Pancreas Study will load Set VOI Press Left mouse button with cursor on VOI edge Pull edges in and release Eliminate table and air as seen in all viewports Press right mouse button, drag to SAVE VOI, and release Access Virtual Fluoroscopy Select Virtual Fluoroscopy Study will load all scans Split - 4 Layout Ref 2-D View AP LAT DRR DRR Set Window/Level of AP DRR Move cursor to AP DRR and click middle mouse button to activate Type “900w” Type “210l” Zoom Activate axial viewport by placing cursor in viewport and clicking middle mouse button Press and hold right mouse button, drag to ZOOM IN to magnify volume of interest Repeat as desired Organ Select Organ Select Create On screen will appear a pop-up menu of Pre-defined Organ Names Click outside menu Using