64 Slice MDCT Protocols: Musculoskeletal |
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Specific anatomic region |
upper extremity |
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Application |
evaluate for necrotizing fasciitis or hematoma |
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Author |
Elliot K Fishman, MD |
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Reference Source |
JHU Protocol |
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Scanner Used |
Siemens Sensation 64 |
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KV/Effective mAs/ Rotation time (sec) |
120 / 200/ 0.5 |
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Detector Collimation (mm) |
0.6 |
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Slice thickness (mm) |
0.75mm (thin) 3.0mm (thick) |
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Pitch |
0.55 |
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Kernel |
B30f
medium smooth (thick, ST) B60f bone (thick) B20f smooth (thin) |
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Reconstruction interval |
3.0mm
(thick) 0.5mm (thin) |
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Image order (acquisition) |
Cr-ca |
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Oral contrast |
N/A |
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IV contrast volume and type |
120 cc Omnipaque 350 (if needed) |
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Injection rate |
Depends
on study CTA 3-3.5 cc/sec Routine 2.0-2.5 cc/sec |
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Scan delay (sec) |
CTA
20-45 sec (depending on zone scanned) Routine 60 sec |
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3D technique used |
VRT & MIP |
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Comment: Saline chaser is helpful in these cases. |
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