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Panorama 0.6T Lumbar spine in large patient, Body/Spine XL coil

ExamCard
Wirtanen, Pirjo Philips Healthcare Philips Global

Panorama 0.6T Lumbar spine in large patient with Body/Spine XL coil

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ExamCard purpose

This ExamCard is for a lumbar examination in large patients, scanned with Body/Spine XL coil. Imaging times are about 6 minutes with phase foldover suppression. This ExamCard is recommended, if the patient weights over 130 kg and the Body/Spine XL coil is used.

 

If the patient is filling the whole Body&Spine XL coil, phase foldover suppression is needed. Also REST slabs are used in the sagittal plane to reduce subcutaneous fat signal of the back.

 

If the patient is smaller than the coil width, you can reduce foldover suppression and leave REST slabs out.

 

This ExamCard has two scoutviews, first in transverse plane, which is used to position the three-plane scoutview.

 

Spectral fatsat is very demanding with this kind of patient, so in this ExamCard T2w TSE STIR is used in the sagittal plane.

ExamCard overview

Lumbar for large patient
Scan 1tra Scout
Scan 23 plane Scout
Scan 3sag T2w TSE
Scan 4sag T1w TSE
Scan 5tra T2w TSE
Scan 6tra T1w TSE
Scan 7tra B-FFE3D
Scan 8sag T2w TSE STIR

ExamCard images

sagittal T2w TSE  REST slab is used to reduce signal from subcutaneous fat of the back.sagittal T1w TSE sagittal T2w TSE STIR
sagittal T2w TSE
sagittal T1w TSE
sagittal T2w TSE STIR
REST slab is used to reduce signal from subcutaneous fat of the back.
transverse T2w TSE Two REST slabs are used on the sides to avoid zebra artefacts with this extremily large patient.transverse T1w TSE transverse B-FFE3D
transverse T2w TSE
transverse T1w TSE
transverse B-FFE3D
Two REST slabs are used on the sides to avoid zebra artefacts with this extremily large patient.
 Positioning of the REST slab in the sagittal plane. Zebra type artifacts in the outer image areas of the scoutview. Positioning of the REST slabs in the transverse plane.
Positioning of the REST slab in the sagittal plane.
Zebra type artifacts in the outer image areas of the scoutview.
Positioning of the REST slabs in the transverse plane.

REST slab positioning

When imaging very large patients, the fat signal from the back is high and it reduces the scaling range, making windowing more difficult. Using a REST slab over the subcutaneous fat of the back signal for suppressing fat signal is a solution for this challenge.

 

In extremily large patients all methods are prone to zebra artifacts in the transverse plane (See middle image). It may be advantageous to use two REST slabs on the sides. This problem is solved with reconstruction filter and REST slabs on the sides.



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Mar 10, 2006

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ExamCard
Panorama 0.6T
Release 5.1, Release 5.2, Release 6
Standard
Lumbar spine, Neuro
 

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