CT - Lungeemboli + Aorta

Indikation		Obs lungeemboli

Anatomisk region		1. serie: Lungeapex til diaphragma 2. serie: Lungeapex til symfysen
Forberedelse		eGFR max 7 dage gammel.
PO-kontrast		Ingen
IV-kontrast		Protokoller m. i.v.-kontrast Iomeron 350 mgI/ml
Lejring		Rygleje med armene over hovedet
Centrering		Over skulderen / 0-stil under symfysen
Bemærkninger
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Topogram
mA		35
kV		120
Længde		512
Rørposition		Siemens: Bottom / Phillips: Frontal
Retning		Siemens: Craniocaudal / Phillips: Out
Autotask		Siemens: Auto / Phillips: Local, Pacs
Bolus Tracking
Locator		Under carina
Tracker		Arteria pulmonalis
Monitorerings-delay		4 s
Treshold		Siemens: 120 HU / Philips: 120 HU
Diagnostisk Delay		1. serie: Siemens 4 s / Phillips 4 s 2. serie: Siemens 24 s / Phillips 24 s


Timed
Delay
1. Serie 2. Akvisition
Bemærkninger/ Lokale forhold

	SIEMENS Definition Flash					PHILIPS Ingenuity
Care Dose 4D	On		DoseRight			On
Care kV	Semi		Z-modulation			On
Quality ref. mAs	200		3D-modulation			On
Ref. kV	100		DoseRigthIndex			17
kV	100		kV			100
Eff. mAs	Off		mAs			150
Dose saving optimized for	9		Cerebrum/ Lever boost			Off
Kollimering	128 x 0,6		Kollimering			64 x 0,625
Slice	0,6 mm		Slice			0,625
Rotationstid	0.28 s		Rotationstid			0,4 s
Pitch	0,6		Pitch			0,8
Rekonstruktioner 1. Rekonstruktion
		SIEMENS Definition Flash			PHILIPS Ingenuity
Snittykkelse		2 mm			2 mm
Inkrement		2 mm			2 mm
Recon Region Auto Location		Thorax - Lung			Chest
SAFIRE/ iDose		3			3
Algoritme Kernel/filter		I30f Medium smooth			Standard (B)
Autotasking		Pacs			Local, Pacs
W / L		Emboli 420 / 60			420 / 60
2. Rekonstruktion til 3D
		SIEMENS Definition Flash			PHILIPS Ingenuity
Snittykkelse		0,75 mm			0,8 mm
Inkrement		0,6 mm			0,65 mm
Recon Region Auto Location		Thorax - Lung			Chest
SAFIRE/ iDose		3			3
Algoritme Kernel/filter		I30f medium smooth			Smooth A
Autotasking		Pacs			Local, Pacs
W / L		Emboli 420 / 60			420 / 60
3. Rekonstruktion Coronal / Sagittal
		SIEMENS Definition Flash			PHILIPS Ingenuity
Snittykkelse		2 mm			2 mm
Inkrement		2 mm			2 mm
Recon Region Auto Location		Thorax - Lung			Chest
SAFIRE/ iDose		3			3
Algoritme Kernel/filter		I30f medium smooth			Standard(B)
Autotasking		Pacs			Local, Pacs
W / L		Emboli 420 / 60			360 / 60
4. Rekonstruktion Lunge
		SIEMENS Definition Flash			PHILIPS Ingenuity
Snittykkelse		1 mm			1 mm
Inkrement		0,8 mm			0,8 mm
Recon Region Auto Location		Thorax - Lung			Chest
SAFIRE/ iDose		3			3
Algoritme Kernel/filter		I50f Very Sharp			Y –Detail (YB)
Autotasking		Pacs			Local, Pacs
W / L		1500 / -500			1600 / -600
2. Akvisition
Bemærkninger/ Lokale forhold

		SIEMENS Definition Flash					PHILIPS Ingenuity
Care Dose 4D		On		DoseRigth			On
Care kV		On		Z-modulation			On
Quality ref. mAs		100		3D-modulation			On
Ref. kV		100		DoseRigthIndex			15
kV		Off		kV			100
Eff. mAs		Off		mAs			120
Dose saving optimized for		11		Cerebrum/ lever boost			Ingen
Kollimering		128 x 0,6		Kollimering			64 x 0,625
Slice		0,6 mm		Slice			0,625
Rotationstid		0,5 s		Rotationstid			0,4
Pitch		1,2		Pitch			1,2
Rekonstruktioner 1. Rekonstruktion
		SIEMENS Definition Flash			PHILIPS Ingenuity
Snittykkelse		2 mm			2 mm
Inkrement		2 mm			2 mm
Recon Region Auto Location		CAP – Lung apex to Ischium			Aorta
SAFIRE/ iDose		3			3
Algoritme Kernel/filter		I31f medium smooth			Standard (B)
Autotasking		Pacs			Local, Pacs
W / L		Aorta 1000 / 200			1000 / 200
2. Rekonstruktion til 3D
		SIEMENS Definition Flash			PHILIPS Ingenuity
Snittykkelse		0,6 mm			0,8 mm
Inkrement		0,6 mm			0,8 mm
Recon Region Auto Location		CAP – Lung apex to Ischium			Aorta
SAFIRE/ iDose		3			3
Algoritme Kernel/filter		I26f medium smooth			Smooth (A)
Autotasking		Pacs			Local, Pacs
W / L		Aorta 1000 / 200			1000 / 200
3. Rekonstruktion Coronal / Sagittal
		SIEMENS Definition Flash			PHILIPS Ingenuity
Snittykkelse		2 mm			2 mm
Inkrement		2 mm			2 mm
Recon Region Auto Location		CAP – Lung apex to Ischium			Aorta
SAFIRE/ iDose		3			3
Algoritme Kernel/filter		I30f medium smooth			Standard (B)
Autotasking		Pacs			Local, Pacs
W / L		Aorta 1000 / 200			1000 / 200

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