CT protocols GE Brightspeed 16
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Currently, it is now possible to find many protocols in the internet, but in some cases they are uncompleted. The protocol to be completed it is necessary to have scan type (scan type, rotation time),start and end location, thick speed ( detector rows, helical or spiral thickness, Pitch, speed (mm/rot)), SFOV, kV, mA and recon type(type - soft, bone, lung, window and the recon thickness/int)
NEURO CT protocols (brain, sinuses, temporal bones and spine)
Brain ct protocols
(1) these reconstructions are used to perform the axial reformations with the correct orientation (orbitomeatal line)
Sinuses CT
Temporal bones CT
(2) these reconstructions are used to perform the axial, coronal and sagittal reformations with infraorbitomeatal orientation.
Spine CT protocols
Body CT protocols (chest, abdomen-pelvis, hip, extremities and shoulder)
Chest and abdomen - pelvis Protocols
NEURO CT protocols (brain, sinuses, temporal bones and spine)
Brain ct protocols
| Scout | 2,5/5mm CT brain | 5mm CT brain | spiral CT brain |
| start location | S180 | S180 | S180 |
| end location | I50 | I50 | I50 |
| kV | 120 | 120 | 120 |
| mA | 10 | 10 | 10 |
| scout plane | 90º | 90º | 90º |
| Aquisition | |||
| scan type | axial | axial | helical |
| rotation time | 2 | 1 | 0.5 |
| start location | skull vertex | skull vertex | skull vertex |
| end location | skull base | skull base | skull base |
| detector rows | 16*0,625 | 16*0,625 | 16*0,625 |
| number of imagens/rot | 4i/2i | 2i | -------------------- |
| beam collimation(mm) | 10 | 10 | 5 |
| pitch | ------------------- | ------------------- | 0,525:1 |
| speed(mm/rot) | ---------------------- | ------------------- | 5.62 |
| kVs | 120 | 140 | 140 |
| mA | 300 | 250 | 300 |
| DFOV(cm) | head(24cm) | head(24cm) | head(24cm) |
| axial thickness (mm) | 2,5/5 | 5 | 5 |
| int(mm) | 10 | 10 | 5 |
| recon type | soft (320,32) | soft (320, 32) | soft(320,32) |
| bone (2000, 500) | bone(2000, 500) | bone(2000, 500) 0,625/0.3mm(1) | |
| soft(320,32) 0,625/0.3mm (1) |
(1) these reconstructions are used to perform the axial reformations with the correct orientation (orbitomeatal line)
Sinuses CT
| scout | |
| start location | S150 |
| end location | I50 |
| kV | 120 |
| mA | 10 |
| scout plane | 90º |
| Aquisition | |
| scan type | helical |
| rotation time | 0.8 |
| start location | frontal sinus |
| end location | end to the jaw teeth |
| detector rows | 16*0.625 |
| pitch | 0.562:1 |
| speed(mm/rot) | 5.62 |
| beam collimation(mm) | 10 |
| axial thickness(mm) | 1.25 |
| int(mm) | 0.6 |
| kV | 120 |
| mAs | 140 |
| DFOV(cm) | head-24 |
| recon type | bone plus(2000, 500) |
| soft(320,32) |
Temporal bones CT
| Scout | the scout should have hyperextension of the chin to reduce radiation in the lens. |
| start location | S150 |
| end location | I50 |
| kV | 120 |
| mA | 10 |
| scout plane | 90º |
| Aquisition | |
| scan type | helical |
| rotation time | 1 |
| start location | temporal bone |
| end location | end of the mastoids |
| detector rows | 16*0,625 |
| pitch | 0,562:1 |
| speed(mm/rot) | 5.62 |
| beam collimation(mm) | 10 |
| axial thickness(mm) | 0,625 |
| int (mm) | 0.3 |
| kV | 140 |
| mAs | 300 |
| DFOV(cm) | head-24 |
| recon type | bone plus(2000,500) (2) |
| soft(320,32)(2) |
(2) these reconstructions are used to perform the axial, coronal and sagittal reformations with infraorbitomeatal orientation.
Spine CT protocols
| parameters | Cervical spine | Dorsal spine | Lumbar spine |
| scan type | helical | helical | helical |
| rotation time | 1 | 0.9 | 1 |
| start location | external auditive meatus | C7 | D12 |
| end location | D1 | L1 | S1 |
| detector rows | 16*0,625 | 16*0,625 | 16*0.625 |
| pitch | 0,938:1 | 0.938:1 | 0.938:1 |
| speed(mm/rot) | 9.37 | 9,37 | 9,37 |
| beam collimation(mm) | 10 | 10 | 10 |
| axial thickness(mm) | 1,25 | 1,25 | 1,25 |
| int(mm) | 0.6 | 0,6 | 0.6 |
| DFOV(cm) | large-20 | large - 20 | large- 20 |
| kV | 120 | 140 | 140 |
| mA | 300 | ACE (100-380) | ACE(100-380) |
| recon type | std(250,40) | std(250,40) | std(250,40) |
| bone plus (3000,500) | bone plus (3000,500) | bone plus(3000, 500) |
Body CT protocols (chest, abdomen-pelvis, hip, extremities and shoulder)
Chest and abdomen - pelvis Protocols
| parameters | chest | Abdomen-pelvis |
| scan type | helical | helical |
| Rotation time | 0,7 | 0,8 |
| start location | S0 | diaphragmatic copulas |
| end location | I300 | lesser trochanter |
| detector row | 16*1,25 | 16*1,25 |
| beam collimation(mm) | 20 | 20 |
| pitch | 1,375:1 | 1.375:1 |
| speed(mm/rot) | 27,5 | 27,5 |
| axial thickness(mm) | 5 | 5 |
| int(mm) | 5 | 5 |
| DFOV (cm) | large - 36 | large-36 |
| kV | 120 | 120 |
| mA | ACE(100-440) | ACE(100-440) |
| noise index | 12 | 11 |
| recon type | std(320,40) | std(320,40) |
| lung (1500,-500) | std(320,40) 2,5/1mm | |
| bone plus high resolution (3000, -500) 1,25/1mm |
| Parameters | hip | knee | foot and ankle |
| scan type | helical | helical | helical |
| rotation time | 0,8 | 1 | 1 |
| start location | S30 | S150 | S100 |
| end location | I200 | I150 | I100 |
| detector rows | 16*1,25 | 16*0,625 | 16*0,625 |
| pitch | 0.938 | 0,562:1 | 0,562:1 |
| speed(mm/rot) | 18.75 | 5,62 | 5,62 |
| beam collimation (mm) | 10 | 10 | 10 |
| axial thickness(mm) | 3,75 | 1,25 | 1,25 |
| int(mm) | 4 | 0,6 | 0,6 |
| DFOV(cm) | large | large | large |
| kV | 140 | 140 | 140 |
| mA | 300 | 250 | 240 |
| recon type | std (440, 40) | std(440,40) | std(440, 40) |
| bone (2000, 500) 1,25/0,6mm | bone(2000, 500) | bone (2000, 500) | |
| std (440,40) 1,25/0,6mm |