Sinus ct brainlab pre-surgical

SINUS CT BRAINLAB

PRE-SURGICAL

CONTACT NUMBER: Technical Support: 206-491-3966 (Darin)

INDICATIONS: Pre-surgical. Referring physician MUST specify BrainLAB protocol.

PATIENT PREP: No prep

IV CONTRAST: None

ORAL CONTRAST: None

POSITIONING: Head First Supine. Position Glabelloalveolar Line horizontal/parallel to z-axis. No tilt or rotation.

Use standard head holder or table-top foam head holder. ENSURE THAT HEAD HOLDER OR SUPPORTS ARE NOT IN THE FIELD OF VIEW.

If necessary, place towels or cushions to stabilize patient’s head, BUT MAKE SURE THAT NOTHING IS PUSHING AGAINST THE PATIENT’S EARS AND THEY ARE IN NORMAL POSITION, AND NOTHING IS TOUCHING THE PATIENT’S HEAD IN THE FIELD OF VIEW.

SCAN RANGE: Include all sinus cavities and all superficial facial anatomy, include tip of nose.

FIELD OF VIEW: Smallest FOV to encompass the region of interest; just beyond patient’s anatomy. Include ears, face, forehead, eyes and the complete nose (TIP OF NOSE MUST NOT BE CUT OFF). Ensure that the tip of the nose is included in the scan and that it is the anterior point on the scan. ENSURE THAT HEAD HOLDER OR SUPPORTS ARE NOT IN THE FIELD OF VIEW.

TOPOGRAMS: AP & Lateral

SCAN TYPE: Spiral/Helical. Use 256x256 or 512x512 matrix.

NOTES: Scan with the patient’s eyes closed.

No headgear or fiducials necessary.

Perform small field-of-view Coronal and Sagittal reformats in bone window to include all sinuses as we routinely do. Do Not send to VM. PACS only.

**From iSite (Stentor/PACS) “Export via DICOM” ONLY the Axial Soft Tissue Reconstructions to Virginia Mason.

**Fax Notification Form (In the Seattle CT Network Folder Online) to Virginia Mason Image Management: 206-625-7295.

**VM Image Management will send confirmation fax back to Inland Pacific Imaging.

If you record a CD, record ONLY the Axial Soft Tissue Reconstructions from the scanner in uncompressed DICOM format with NO VIEWER TOOL.

ALARA – Keep radiation dose As Low As Reasonably Achievable.
SINUS CT BRAINLAB

Scan Range

Scan Direction

Respiration

Scan Delay (Seconds)

CARE DOSE 4D

Effective mAs

kV

Collimator (mm) Slices Per Tube Rotation

Pitch Table Increment/Speed: (mm/rotation)

Rotation Time (Seconds)

SFOV (cm)

Include all sinus cavities and superficial facial anatomy to include tip of nose

Caudocranial

Quiet Respiration

4 Seconds

OFF

75

110

Collimator: 0.6 mm Slices Per Tube Rotation: 16

Pitch: 1.0 Table Increment/Speed: 9.6 mm/rotation

1.0 Seconds

30 cm

Plane Positioning and Reformat Angles

Slice Thickness

Interval

Kernal

Window Width/Level

DFOV (cm)

RECON Axial

Axial: Position Glabelloalveolar Line horizontal/ parallel to z-axis

1.0 mm

1.0 mm

H30f Medium Smooth

Mediastinum 450/50

FOV just beyond patient’s anatomy (See Above)

RECON Coronals Perpendicular to Hard Palette

Coronal Recon: Perpendicular to hard pallete Frontal Sinus Through Sphenoid Sinus Recon Card 3D Coronal

1.0 mm

1.0 mm

H60f Sharp

Osteo 3000/300

Small FOV to include all sinuses

RECON Sagittals Parallel to Mid-Sagittal Plane

Sagittal Recon: Parallel to Mid-Sagittal Plane Through All Sinuses Recon Card 3D Sagittal

1.0 mm

1.0 mm

H60f Sharp

Osteo 3000/300

Small FOV to include all sinuses

CHARGES: CSINBLAB

NETWORK: Exam to PACS

*From iSite (Stentor/PACS) “Export via DICOM” ONLY the Axial Soft Tissue Reconstructions to Virginia Mason.

*Fax Notification Form (In the Seattle CT Network Folder Online) to Virginia Mason Image Management: 206-625-7295

*VM Image Management will send confirmation fax back to Inland Pacific Imaging.

6/2013