Stereolithographic Reproduction of Anatomic Structures Using a CT or CBVT Scan

APPENDIX D Stereolithographic Reproduction of Anatomic Structures Using a CT or CBVT Scan

ORDERING AN ANATOMIC MODEL

1. Call the scanning facility for appointment, or if you have a cone beam volumetric tomography (CBVT) scanner in your facility, schedule the patient according to the usual procedure.
2. Determine whether the facility has ever used the scanning protocol required for anatomic model generation.
3. Fill out the patient information sheet.
4. Send a scan protocol to the scanning facility. More important, send it to the technologist doing the scan. To prevent any mistakes, send a copy of the scan protocol with the patient.
5. It is important to fill out the patient information sheet and fax it directly to the facility generating the anatomic model, or it can be sent with the electronic computed tomography (CT) data. Because necessary scanner data are included on the patient information sheet, ask the scanning technologist to fill out that portion.
6. To prevent any misunderstanding about the anatomy to be scanned, mark the area to be scanned on the skeletal worksheet and send it with the patient to the scan facility.
7. Whether the data are being sent from the hospital or the implantologist’s office, include the necessary patient information sheet and skeletal worksheet.
8. Send the data overnight delivery; this helps prevent any delays or damage to the electronic data.
9. If you are concerned about the scan facility or with the scan quality, call your model-generating facility, which will call the scan facility immediately before the scan. The scan facility should proceed step by step through the protocol to obtain a quality scan.
10. Inform your office staff of modeling activities so that the modeling facility can contact them in case of your absence.

SCAN PROTOCOL FOR THE SCANNING TECHNOLOGIST

1. Always use a zero-degree gantry tilt when using a flatbed scanner.
2. When scanning the patient, proceed three slices above and three slices below the area of interest.
3. Choose the appropriate field of view for the area of interest.
4. The field of view, patient position, and table height must not be changed during the scan.
5. Scan the patient with appropriate technical factors for the anatomy.
6. Monitor the patient closely for any motion during the scan. If motion is detected during the scan, res/>

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  5. 3: Evaluation and Selection of the Implant Patient
  6. 6: Preparations for Implant Surgery

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Jan 5, 2015 | Posted by in Implantology | Comments Off on Stereolithographic Reproduction of Anatomic Structures Using a CT or CBVT Scan

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