《放射治疗学》双语课件5Breast - book.pdf

Clinical Case Exercise Breast Features Pilot Localization contouring visualization of encompassed lung Virtual Simulation field matching of non-coplanar beams visualization of encompassed heart reconstruction of 2-D slice though collimator angle Breast Patient Position Supine Ipsilateral arm above head Immobilization Alpha Cradle Model BF4 - ipsilateral side cut out to see projection of laser on skin Ipsilateral arm on forehead Contralateral arm by side Scan Parameters 3 mm thick with a 3 mm index C6 to 2 cm below inferior catheter Treatment Plan 1/2 beam medial and lateral tangents TAD Collimator angle to match chest wall Table angle to prevent divergence into supraclav Triangular block above supraclav border 1/2 beam supraclavicular field TSD Medical Physics, October 1996 Catheter Placement before Scanning Medial - usually midline Lateral - mid axillary line Inferior - 2 cm below inframammary fold Superior - Angle of Louis or suprasternal notch actual line drawn on patient using laser catheter placed on line using laser Open Study Select Study Select Open Select Breast 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 Pilot Localization