Syngo Grappa Druck
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View Syngo Grappa Druck as PDF for free.
More details
- Words: 496
- Pages: 4
syngo GRAPPA Powered by Tim
www.siemens.com/medical
syngo GRAPPA Powered by Tim
GRAPPA is a Siemens exclusive, k-space based parallel imaging technique. GRAPPA is important clinically because GRAPPA can be applied through the entire body, head-to-toe at smaller FoV’s without artifacts. All Tim matrix coils, array coils and various combinations of coil elements are compatible with GRAPPA. Both 2D and 3D scans can utilize GRAPPA to speed acquisition and/or resolution. Clinical Role 1. Higher Speed: a) GRAPPA with Tim matrix coils gives maximum freedom in selecting the slice orientation and acceleration factors. b) Speed can be utilized to improve temporal resolution in dynamic studies and cardiac exams.
Figure 1: Primary sclerosing cholangitis. 2 min. 3D MRCP with iPAT factor 4. Institute of Clinical Radiology, University Hospitals, Grosshadern, Ludwig-Maximilians-University, Munich, Germany.
c) Reducing scan times and breath-hold periods particularly for uncooperative patients and children can eliminate certain movement artifacts (Figure 1). 2. Better resolution and anatomical coverage: a) The time saved with speed can be utilized for high resolution scans achieved in the same scan times (Figures 2A–2C). b) Alternatively, the anatomical coverage (increase TR and # of slices) can be increased keeping the time the same.
2
Figure 2A: 3D WE TrueFISP, GRAPPA 2.
3. Reduction of artifacts: a) Using GRAPPA permits MR parameter changes like TE and bandwidth that help reduce susceptibility artifacts particularly for EPI based sequences. This is beneficial in the orbital, nasal sinus and posterior fossa regions in the brain.
Figure 2B: Fat Sat, GRAPPA 2, 2:12, 3.5, 8 cm.
Figure 2C: GRAPPA 2, 2:00, 2 mm, 9 cm.
Figure 3A: Without GRAPPA – more distortions.
Figure 3B: With GRAPPA – less distortions.
Figure 4: GRAPPA 2, 3D Fat Sat VIBE, 120 slices in 16 sec breath-hold, 2 mm partitions. Courtesy of NYU, MAGNETOM Avanto.
3
On account of certain regional limitations of sales rights and service availability, we cannot guarantee that all products included in this brochure are available through the Siemens sales organization worldwide. Availability and packaging may vary by country and is subject to change without prior notice. Some/all of the features and products described herein may not be available in the United States.
Contact Address USA Siemens Medical Solutions USA, Inc. Magnetic Resonance Division 51 Valley Stream Parkway Malvern, PA 19355-1406 USA Telephone: 1-888-826-9702
The information in this document contains general technical descriptions of specifications and options as well as standard and optional features which do not always have to be present in individual cases. Siemens reserves the right to modify the design, packaging, specifications and options described herein without prior notice. Please contact your local Siemens sales representative for the most current information. Note: Any technical data contained in this document may vary within defined tolerances. Original images always lose a certain amount of detail when reproduced. © 02.2007, Siemens AG Order No. A91MR-1100-9C-7600 Printed in Germany CC MR 01100 WS 02073.
Headquarters Siemens AG, Medical Solutions Henkestr. 127, D-91052 Erlangen Germany Telephone: +49 9131 84-0 www.siemens.com/medical
www.siemens.com/medical
www.siemens.com/medical
syngo GRAPPA Powered by Tim
GRAPPA is a Siemens exclusive, k-space based parallel imaging technique. GRAPPA is important clinically because GRAPPA can be applied through the entire body, head-to-toe at smaller FoV’s without artifacts. All Tim matrix coils, array coils and various combinations of coil elements are compatible with GRAPPA. Both 2D and 3D scans can utilize GRAPPA to speed acquisition and/or resolution. Clinical Role 1. Higher Speed: a) GRAPPA with Tim matrix coils gives maximum freedom in selecting the slice orientation and acceleration factors. b) Speed can be utilized to improve temporal resolution in dynamic studies and cardiac exams.
Figure 1: Primary sclerosing cholangitis. 2 min. 3D MRCP with iPAT factor 4. Institute of Clinical Radiology, University Hospitals, Grosshadern, Ludwig-Maximilians-University, Munich, Germany.
c) Reducing scan times and breath-hold periods particularly for uncooperative patients and children can eliminate certain movement artifacts (Figure 1). 2. Better resolution and anatomical coverage: a) The time saved with speed can be utilized for high resolution scans achieved in the same scan times (Figures 2A–2C). b) Alternatively, the anatomical coverage (increase TR and # of slices) can be increased keeping the time the same.
2
Figure 2A: 3D WE TrueFISP, GRAPPA 2.
3. Reduction of artifacts: a) Using GRAPPA permits MR parameter changes like TE and bandwidth that help reduce susceptibility artifacts particularly for EPI based sequences. This is beneficial in the orbital, nasal sinus and posterior fossa regions in the brain.
Figure 2B: Fat Sat, GRAPPA 2, 2:12, 3.5, 8 cm.
Figure 2C: GRAPPA 2, 2:00, 2 mm, 9 cm.
Figure 3A: Without GRAPPA – more distortions.
Figure 3B: With GRAPPA – less distortions.
Figure 4: GRAPPA 2, 3D Fat Sat VIBE, 120 slices in 16 sec breath-hold, 2 mm partitions. Courtesy of NYU, MAGNETOM Avanto.
3
On account of certain regional limitations of sales rights and service availability, we cannot guarantee that all products included in this brochure are available through the Siemens sales organization worldwide. Availability and packaging may vary by country and is subject to change without prior notice. Some/all of the features and products described herein may not be available in the United States.
Contact Address USA Siemens Medical Solutions USA, Inc. Magnetic Resonance Division 51 Valley Stream Parkway Malvern, PA 19355-1406 USA Telephone: 1-888-826-9702
The information in this document contains general technical descriptions of specifications and options as well as standard and optional features which do not always have to be present in individual cases. Siemens reserves the right to modify the design, packaging, specifications and options described herein without prior notice. Please contact your local Siemens sales representative for the most current information. Note: Any technical data contained in this document may vary within defined tolerances. Original images always lose a certain amount of detail when reproduced. © 02.2007, Siemens AG Order No. A91MR-1100-9C-7600 Printed in Germany CC MR 01100 WS 02073.
Headquarters Siemens AG, Medical Solutions Henkestr. 127, D-91052 Erlangen Germany Telephone: +49 9131 84-0 www.siemens.com/medical
www.siemens.com/medical
Related Documents
Syngo Grappa Druck
December 2019 2
Syngo Space Druck
December 2019 10
Arithmetik-druck
June 2020 6
Cennatoio - Grappa
May 2020 8
Fertig Druck
November 2019 26