CT - Lungeemboli + Thorax abdomen

Indikation		Obs lungeemboli Infektion, divertikulit, ukendt primærtumor, mm.

Anatomisk region		1. serie: Lungeapex til diaphragma 2. serie: Lungeapex til trochanter minor.
Forberedelse		eGFR max 7 dage gammel.
PO-kontrast		Ingen
IV-kontrast		Protokoller m. i.v.-kontrast Ultravist 370 mgI/ml
Lejring		Rygleje med armene over hovedet
Centrering		Over skulderen / 0-stil under trochanter minor.
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
Treshhold		Siemens: 120 HU / Philips: 120 HU
Diagnostisk Delay		1. serie Siemens: 4 s / Phillips: 5 s 2. serie Siemens: 40 s / Phillips: 40 s


Timed
Delay
1. 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		DoseRightIndex				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		DoseRight				On
Care kV		Semi		Z-modulation				On
Quality ref. mAs		150		3D-modulation				On
Ref. kV		120		DoseRightIndex				16
kV		120		kV				120
Eff. mAs		Off		mAs				81
Dose saving optimized for		7		Cerebrum/ lever boost				3
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		0,9		Pitch				1,0
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				Whole Body
SAFIRE/ iDose		3				3
Algoritme Kernel/filter		I31f medium smooth				Standard (B)
Autotasking		Pacs				Local, Pacs
W / L		Emboli 420 / 60				360 / 60
2. 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 medium sharp				Y-Detail (YB)
Autotasking		Pacs				Local, Pacs
W / L		1500 / - 500				1600 / - 600
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				Whole Body
SAFIRE/ iDose		3				3
Algoritme Kernel/filter		I31f medium smooth				Standard (B)
Autotasking		Pacs				Local, Pacs
W / L		Emboli 420 / 60				360 / 60
4. Rekonstruktion MIP 3D
		SIEMENS Definition Flash				PHILIPS Ingenuity
Snittykkelse		16 mm				15 mm
Inkrement		8 mm				7,50 mm
Recon Region Auto Location		Thorax - Lung				Chest
SAFIRE/ iDose		4				5
Algoritme Kernel/filter		I50f medium sharp				Sharp (C)
Autotasking		Pacs				Local, Pacs
W / L		Lunge MIP 1300 / -400				1300 / -400

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