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MAKING CUSTOMIZED BOLUS WITH A 3D PRINTER Alex Markovic, PhD Banner Health, North Colorado Medical Center, Greeley, CO RMAAPM Annual Meeting May 20, 2017 OUTLINE (cid:1)Advantages of 3Dprinted bolus (cid:1)Equipment and software (cid:1)Clinical cases (cid:1)Test case on a phantom (cid:1)Dosimetry data (cid:1)Other uses of 3d printing in radiation oncology Greeley In the News DISADVANTAGE OF Axial Narrow TRADITIONAL BOLUS bolus coverin g scar (cid:1)Air gaps (cid:1)Poor conformity (cid:1)In many cases, the delivery does not reflect the plan Coronal ADVANTAGES OF 3D PRINTED BOLUS (cid:1) Conformity (cid:1) The treatment more closely Ear matches the plan MERT (cid:1) Reduces air gaps (cid:1) Speeds up the placement during setup Face (cid:1) We send a message to patients that we customize our treatments to them Wrist PROCESS TO PRINT A 3D BOLUS Use TPS Decide to use 3D contouring tools bolus during tx to make a bolus planning and calculate dose Export plan and structure dicom Load into Cura, files to convert to and print! .STL file Cura Printed bolus EQUIPMENT CHOICES - PRINTER (cid:1) 1000 3D printers on the market! (cid:1) Taz 6 – fused filament fabrication (FFF) (cid:1) Print volume: 11x11x10” (cid:1) Fast print speed (up to 200 mm/sec) (cid:1) Wide array of filament choices including flexible (cid:1) Cost of printer+ optional tool-head: $3000.00 TAZ 6 PRINTER ANATOMY Close up Z-rails Toolhead Filament X-rails nozzle Print bed Y-rails EQUIPMENT CHOICES - FILAMENT (cid:1)Hard filament: easiest to print with: (cid:1)PLA, ABS, co-polyester (cid:1)Flexible filament – most difficult to work with: Ninjaflex, Filaflex (cid:1)Semi Flexible – easier to work with: Cheetah, Polyflex (cid:1)1 kg spool of filament = $70.00 Pick ONE, master it! EQUIPMENT CHOICES - SOFTWARE (cid:1)Basic: (cid:1) Cura – slicer software, which converts an STL file to GCODE. (cid:1) STL: contains the coordinates of the vertices of triangles that make up part. (cid:1) GCODE: contains instruction for the printer to print each layer (cid:1)Advanced: (cid:1) 3DCAD: Tinkercad, Fusion 360, Onshape (cid:1) 3D manipulation: Blender, Meshmixer

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▻Poor conformity. ▻In many cases, the Conformity. ▻ The treatment structure dicom files to convert to .STL file. Load into Cura, and print! Cura.

Alex Markovic PDF

43 Pages·2017·3.74 MB·English

by Alex Markovic

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by Alex Markovic| 2017| 43 pages| 3.74| English

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About Alex Markovic

▻Poor conformity. ▻In many cases, the Conformity. ▻ The treatment structure dicom files to convert to .STL file. Load into Cura, and print! Cura.

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Author:	Alex Markovic
Publication Year:	2017
Pages:	43
Language:	English
File Size:	3.74
Format:	PDF
Price:	FREE

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