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SENSE with SENSE Flex-M coil

Application Tip
Teitsma, Loretta Philips Healthcare Philips Global
van den Heuvel, Martina Philips Healthcare Philips Global

FOV possibilities

When performing SENSE scans with the SENSE Flex-M coils, it is imprtant to take into consideration how the FOV relates to NSA, angulations and fold-over suppression.

 

From Release 10.3 onwards (and in the Releases 8.5.2. and 9.5.2.), the reference scan for the SENSE Flex-M coil is performed with a FOV of 400 mm. In older releases, the reference scan for this coil has been performed with a FOV of 300 mm.

 

FOV 300 mm versus FOV 400 mm
FOV 300 mm versus FOV 400 mm
FOV 300 mm reference scan, older releases FOV 400 mm reference scan, Rel. 10.3 onwards

Effects on "Maximum FOV"

FOV possibilities Maximum FOV 133 mm with 3 NSA, fold-over suppression and no angulations.FOV possibilities FOV 133 mm with 3 NSA, fold-over suppression AND angulations leads to a conflict!FOV possibilities Maximum FOV 125 mm with 3 NSA, fold-over suppression AND angulations.
FOV possibilities
FOV possibilities
FOV possibilities
Maximum FOV 133 mm with 3 NSA, fold-over suppression and no angulations.
FOV 133 mm with 3 NSA, fold-over suppression AND angulations leads to a conflict!
Maximum FOV 125 mm with 3 NSA, fold-over suppression AND angulations.
FOV possibilities Maximum FOV 200 mm with 2 NSA, fold-over suppression and no angulations.FOV possibilities FOV 200 mm with 2 NSA, fold-over suppression AND angulations leads to a conflict!FOV possibilities Maximum FOV 178 mm with 2 NSA, fold-over suppression AND angulations.
FOV possibilities
FOV possibilities
FOV possibilities
Maximum FOV 200 mm with 2 NSA, fold-over suppression and no angulations.
FOV 200 mm with 2 NSA, fold-over suppression AND angulations leads to a conflict!
Maximum FOV 178 mm with 2 NSA, fold-over suppression AND angulations.

Risk of backfolding

FOV Possibilities Risk of backfolding
FOV Possibilities
Risk of backfolding

The left image represents a scan with                     The right image represents a scan with

a FOV of 130 mm with 2 NSA and fold-over             a FOV of 170 mm with 2 NSA and fold-over

suppression. The risk of backfolding is                    suppression. Even though the risk of

significantly high.                                                  backfolding still exists, it is much lower.

Links to related documents

This Application Tip "SENSE Flex coils: applications and positioning" provides

 

  • information on the coils, on their applications and on general coil positioning
  • more links to related documents dealing with the SENSE Flex coils


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Application Tip
Achieva 1.5T, Achieva 3.0T, Intera 1.0T, Intera 1.5T
Release 1, Release 10, Release 11, Release 9
Explorer / Nova Dual, Master / Nova, Nova, Nova Dual, Omni / Stellar, Omni / Stellar, Power / Pulsar, Pulsar, Quasar Dual
Knee, Musculoskeletal, Shoulder
 

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