64 Slice MDCT Protocols: Chest |
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Specific anatomic region |
Aorta |
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Application |
Aorta- R/O aneurysm, evaluate extent of aorta, R/O dissection, define extent of aneurysm/disease, F/U aneurysm (change of size) |
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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/ 250 / 0.33 |
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Detector Collimation (mm) |
0.6 |
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Slice thickness (mm) |
0.75 mm (thin) 5.0mm (thick) |
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Pitch |
0.7 |
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Kernel |
B20f
smooth (thin) B30f medium smooth (thick) |
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Reconstruction interval |
0.5mm
(thin) 5.0mm (thick) |
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Image order (acquisition) |
Cr-ca |
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Oral contrast |
water |
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IV contrast volume and type |
120 cc Omnipaque 350 |
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Injection rate |
3-3.5cc/sec |
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Scan delay (sec) |
30 sec or bolus tracking |
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3D technique used |
VRT of MIP |
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Comment: Also have a protocol using 0.37sec rotation time. mAs increased to 300. |
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