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(FAIR) In this sequence 2 inversion recovery images are acquired, one with a nonselective and the other with a slice selective inversion pulse. The z-magnetization in the first sequence is independent of flow. Inflowing spins give z-magnetization from second pulse.
A major signal loss in FAIR is the T1 relaxation of tagged blood in transit to the imaging slice. Sharper edges of the inversion pulse give narrow spacing between the inversion edge and the 1st slice because reduced transit time gives lower T1 relaxation induced signal loss.
The difference of the images in a consequence contains information proportional to flow (blood partition coefficient). Standard adiabatic inversion RF pulse does not have good slice-profile, because of power/SAR limitation. A c-shaped frequency offset corrected inversion (FOCI) RF pulse can help to increase the signal.
Perfusion imaging, e.g. myocardial, using tissue water as endogenous contrast is suggested. | | | | | |
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From Philips Medical Systems;
Philips Infinion 1.5 T is designed to maximize the efficiency and quality of patient care. Developed with the patient in mind, the Infinion is the shortest and most open 1.5T scanner available. The unique 'ultra short' 1.4 m magnet assures patient comfort and acceptance without compromising image quality and clinical performance.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Ultra short bore
Head, head / neck, integrated C-spine, L/T spine array, small large GP coils, body flex array, torso pelvis array, breast array, endocavitary, shoulder array, lower extremity, hand / wrist, cardiac, PV array
SE, TSE, SS TSE, EPI, IR, STIR, FLAIR, FFE, TFE, T1 TFE, T2 TFE, Presat, Fatsat, MTC, Diff-opt., Angiography: PCA, MCA, TOF
IMAGING MODES
Single slice, single volume, multi slice, multi volume
80 images/sec std.; up to320 opt.@256
H*W*D
233 (lead fitted) x 198 x 140 cm
POWER REQUIREMENTS
400/480 V
COOLING SYSTEM TYPE
Closed loop, chilled water
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• View the DATABASE results for 'Infinion 1.5T™' (2).
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From Philips Medical Systems;
The clinical capabilities of MR will further expand. Inside and out, the Achieva is a friendly, open system designed for optimal patient comfort and maximized workflow with high functionality.
The Achieva 1.5T can be upgraded to Achieva I/T, with three configurations optimized for MR guided interventions and therapy:
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Achieva I/T Neurosurgery
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Achieva I/T Cardiovascular (or XMR - combining an Achieva 1.5T CV system and an X-Ray system)
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Short bore compact
Standard: Head, body, C1, C3; Optional: Small joint, flex-E, flex-R, endocavitary (L and S), dual TMJ, knee, neck, T/L spine, breast; optional phased array: Spine, pediatric, 3rd party connector; Optional SENSEâ„¢ coils for all applications
SE, Modified-SE, IR (T1, T2, PD), STIR, FLAIR, SPIR, FFE, T1-FFE, T2-FFE, Balanced FFE, TFE, Balanced TFE, Dynamic, Keyhole, 3D, Multi Chunk 3D, Multi Stack 3D, K Space Shutter, MTC, TSE, Dual IR, DRIVE, EPI, Cine, 2DMSS, DAVE, Mixed Mode; Angiography: Inflow MRA, TONE, PCA, CE MRA
128 x 128, 256 x 256,512 x 512,1024 x 1024 (64 for Bold img)
Variable in 1% increments
Lum.: 120 cd/m2; contrast: 150:1
Variable (op. param. depend.)
POWER REQUIREMENTS
380/400 V
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• View the DATABASE results for 'Intera Achieva 1.5T™' (2).
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| | | Searchterm 'Slice' was also found in the following services: | | | | |
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From Philips Medical Systems;
Philips continues to expand the frontiers of utra high field MRI with the introduction of the new Intera Achieva 3.0T™. Its powerful future-safe platform shares all the advantages of the Achieva family and covers applications throughout the whole body.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Short bore compact
SE, Modified-SE, IR (T1, T2, PD), STIR, FLAIR, SPIR, FFE, T1-FFE, T2-FFE, Balanced FFE, TFE, Balanced TFE, Dynamic, Keyhole, 3D, Multi Chunk 3D, Multi Stack 3D, K Space Shutter, MTC, TSE, Dual IR, DRIVE, EPI, Cine, 2DMSS, DAVE, Mixed Mode; Angiography: Inflow MRA, TONE, PCA, CE MRA
128 x 128, 256 x 256,512 x 512,1024 x 1024 (64 for Bold img)
Variable in 1% increments
Lum.: 120 cd/m2; contrast: 150:1
Variable (op. param. depend.)
POWER REQUIREMENTS
380/400 V
Passive and dynamic, 1st order std./2nd opt.
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• View the DATABASE results for 'Intera Achieva 3.0T™' (2).
| | | | |  Further Reading: | News & More:
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| | | Searchterm 'Slice' was also found in the following services: | | | | |
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Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Short bore compact
Standard: Head, body, cardiac, optional phased array: Spine, pediatric, 3rd party connector; Optional SENSE? coils for all applications
SE, Modified-SE, IR (T1, T2, PD), STIR, FLAIR, SPIR, FFE, T1-FFE, T2-FFE, Balanced FFE, TFE, Balanced TFE, Dynamic, Keyhole, 3D, Multi Chunk 3D, Multi Stack 3D, K Space Shutter, MTC, TSE, Dual IR, DRIVE, EPI, Cine, 2DMSS, DAVE, Mixed Mode; Angiography: Inflow MRA, TONE, PCA, CE MRA
128 x 128, 256 x 256,512 x 512,1024 x 1024 (64 for Bold img)
Variable in 1% increments
Lum.: 120 cd/m2; contrast: 150:1
Variable (op. param. depend.)
POWER REQUIREMENTS
380/400 V
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• View the DATABASE results for 'Intera Achieva CV™' (2).
| | | | | | Further Reading: | News & More:
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