Laser Systems for Patient Alignment
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1 Laser Systems for Patient Alignment
2 GALAXY Patient TOPOGRAPHY Laser System Page: 2 Date: 28 March 2009
3 The GALAXY System NEW METHOD FOR HIGHER ALIGNMENT ACCURACY. Patient Positioning System for Linac Simulator CT Page: 3 Date: 28 March 2009
4 GALAXY 3D Patient Surface Scanning System Automatically calculates patient shift vectors Interface to the couch for a semi automatic patient setup DICOM 3 Interface Network shared database Page: 4 Date: 28 March 2009
5 GALAXY - The Working Principle Laser Line Projector Camera Page: 5 Date: 28 March 2009
6 GALAXY - The Working Principle Scanning the Surface Page: 6 Date: 28 March 2009
7 GALAXY WORKFLOW Page: 7 Date: 28 March 2009
8 GALAXY Glx: Positioning Presentation of the shiftvector in 6 DoF Intuitive display of calculated patient shift Quantified Result of Scan and Matching Page: 8 Date: 28 March 2009
9 GALAXY The Hardware Page: 9 Date: 28 March 2009
10 GALAXY MAMMA CASE Heidelberg After positionig according to the room lasers: Source: Torsten Moser DKFZ Heidelberg 2008
11 GALAXY MAMMA CASE Heidelberg Deviation after matching with the CT Images Source: Torsten Moser DKFZ Heidelberg 2008
12 GALAXY MAMMA CASE Nordhausen Daily shift Long Vert lat 26 fractions scanned Reference image scanned at first table setup Data collected at Süd Harz Hospital Nordhausen
13 GALAXY GlxMotion NEW: Motion Monitoring during Treatment Workflow: Reference Scan Acquire the patients surface as a reference Breathing detection Scan the patients surface over several breathing cycles Automated patient surveillance during the whole treatment session An alarm alerts the personnel if the patient moves outside the tolerances. Page: 13 Date: 28 March 2009
14 GALAXY GlxMotion Measurement Results in Realtime Movement History Chart Display of Patient Surface Page: 14 Date: 28 March 2009
15 GALAXY GlxMotion Patient Movement Monitoring DICOM Import of Patient data Tolerance Settings adjustable Variable Breathing Detection Settings Flexible Scan Volume Settings Results are stored in the database Reporting Tool Page: 15 Date: 28 March 2009
16 GALAXY Client-Server-Structure / Application 2 CT DICOM ARCHIVE / PACS Server GALAXY SERVER GALAXY OFFICE Ethernet Network GALAXY TREATMENT ROOM 1 GALAXY TREATMENT ROOM 2 Page: 16 Date: 28 March 2009
17 GALAXY Patient Data Import Patient Administration: Manual Administration DICOM import Page: 18 Date: 28 March 2009
18 GALAXY - Indications Breast Tumor position is well related to the skin. Matching based on the breast skin Head Solid body part Stable correlation between surface and tumor Prostate Increased positioning accuracy compared to room lasers only Matching based on Regions of Interest Bilder entnommen: Page: 19 Date: 28 March 2009
19 GALAXY Installations Sued-Harz-Hospital Nordhausen/Germany Multi-User System Installation in a Varian Linac Room IMRT Treatment in routine Using the GALAXY and Portal Imaging for Patient Adjustment Page: 20 Date: 28 March 2009
20 GALAXY Reference site DKFZ / University Heidelberg Installed 2007 Goal: Technical investigation of the GALAXY System First patient study finished Poster on ESTRO 2008 by Torsten Moser Next study with 120 Patients to start soon
21 GALAXY GlxGating Feature to come: Gating module The Laser line will be positioned on the body's surface, where the breathing amplitude is representative Real time data acquisition and processing Comparision with 4D-CT-Image data set Interface to Linac The Gating Module is under development. Release Q2/2009 Page: 22 Date: 28 March 2009
22 GALAXY - Highlights No additional Setup time No markers Non-invasive No extra radiation High Precision Alignment User friendly intuitive Software State-of-the-Art Laser scanning system Network shared database Interface to Linac manufactures Interface to R&V Systems DICOM compatible Page: 23 Date: 28 March 2009
23 GALAXY - Limits GALAXY is an optical system with visible Laser light GALAXY views and scans the Patient s skin surface GALAXY cannot look inside the Patient There will be Patients, where skin and tumor have not much relationship to each other Page: 24 Date: 28 March 2009
24 GALAXY Flexible fat LIMITATIONS outline
25 Page: 26 Danke für s Zuhören!
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