140. HIGH RESOLUTION LUNG CT

Indications	Evaluate diffuse lung disease (interstitial, fibrosis)
Number of scan Acquisition/series	3
Scan Acquisition	1. Supine Inspiratory	2. Supine Expiratory Use Sequence Mode	3. Prone Inspiratory
Range	Clavicular heads through both costophrenic angles	Clavicular heads through both costophrenic angles	Clavicular heads through both costophrenic angles
Care Dose 4D	On	On	On
Quality Reference mAs	110	130	130
KV / Effective mAs / Rotation time	120 / 110 / 0.5 seconds	120 / 130 / 0.75 (scan time full 0.75 sec)	120 / 130 / 0.75 (scan time full 0.75 sec)
Detector Collimation	0.75 mm	1 mm	1 mm
Slice Thickness	1 mm	1 mm	1 mm
Pitch factor	1.3	None	None
Kernel (for initial reconstruction)	B30f	B80s	B80s
Increment	1 mm	10 mm feed / scan	10 mm feed / scan
Image order	Cranial - Caudal	Cranial - Caudal	Cranial - Caudal
Oral Contrast	None	None	None
IV contrast	None	None	None
Injection Rate	N/A	N/A	N/A
Scan Delay	N/A	N/A	N/A
Reconstruction (Series to send to PACS)	1. Recon 3x3 B30f mediastinum medium smooth 2. Recon 2x2 B80f lung ultrasharp 3. Recon 1x1 B80s to PACS 4. Recon 1x1 B80s 3D Card for coronal reconstruction 5. MIP 20 mm slab 3 mm increments 6. Recon 1x1 B80s 7. Recon 1x1 B80s

Clinical