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CRANIO-MAXILLOFACIAL CT SCAN PROTOCOL

   

Thank you for reviewing this protocol.  The accuracy of the patient specific surgical templates is dependent upon the quality of the CT scan.  If you have any questions please contact us at (704) 650-9283.

Scan Guidelines

  • High spatial resolution scans are critical.  The series should be acquired in continuous slices at a thickness of 0.5mm–1.0mm. Slice spacing and thickness should be the same.
  • Please use a scanning algorithm that produces high resolution images suitable for 3D reconstruction or stereotactic planning. Suggested algorithms: GE: standard, Siemens: H30s, Toshiba: FC20, Philips: B
  • The scanning FOV must contain the entire region of interest with a 5mm margin.
  • Motion artifact will affect the accuracy of the anatomical model.  Please ensure that the patient does not move during the scan.  If the patient moves during the scan, the scan must be repeated.  TactileMED will reject any scan that contains motion artifact.
  • Please do not use gantry tilt.  Position the patient with the occlusal plane parallel to the image plane.
  • CT ScannersStandard CTCBCTCBCT

Helical CT Scanners

FOV

Gantry Tilt

Scan Spacing

Slice Thickness

Algorithm

20-25 cm

0

0.5-1.0 mm

0.5-1.0 mm

STANDARD

CBCT Scanners

Scanner

Scan Time

Voxel Size

FOV

i-CAT Classic

40 sec

0.4mm

16cm x 22cm

i-CAT Next Gen

26.9 sec

0.4mm

23cm x 17cm

Iluma Ultra

40 sec

0.4mm

16.4cm x 18cm

Other

Longest

0.3-0.4mm

Largest

THE PRIMARY/AXIAL/ORIGINAL SERIES IS REQUIRED TO PRODUCE A MODEL/TEMPLATE. 3D

RECONSTRUCTIONS, REFORMATS OR POST PROCESSED DATA MAY BE SENT IN ADDITION TO

THE REQUIRED SERIES. ARCHIVE THE ENTIRE STUDY IN UNCOMPRESSED DICOM FORMAT,

AND SHIP THE CD/DVD TO TACTILEMED.

TactileMED, Inc. 5725 Silchester Lane Charlotte, NC 28215