Multiva 1.5T Peripheral CE angio - Beyhekim Devlet Hospital Konya

ExamCard
Bayram, Recep, M.D. • Beyhekim Devlet (MOH) Hospital • Turkey
Aytac, Mehmet Yasir • Beyhekim Devlet (MOH) Hospital • Turkey
Kirimli, Melahat • Philips Healthcare Turkey • Turkey

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ExamCard description

This Release 5.1.7 ExamCard was created on Multiva 1.5T by the Bay-Tuna Radiology Center at the Beyhekim Devlet (MOH) Hospital in Konya, optimized for resolution and scan duration to image the peripheral arteries with the built-in quadrature body coil (QBC).

Three 3D imaging stacks at different anatomical levels (stations) are acquired before and after contrast administration.

A 2D BolusTrak scan is inserted between the pre- and post-contrast scans to enable the visual determination of contrast arrival in the anatomy of interest.

SmartLine ImageAlgebra, PicturePlus and VolumeView steps are added to automatically reconstruct data for visualisation of the complete vascular tree from the aortic arch down to the pedal arch in the feet. The MobiView SmartLine step has a manual start to enable the windowing of images prior to fusing the datasets and the generation of the new image series.

ExamCard overview

Total ExamCard scan time 9:04 min.

ExamCard images: Source data pre- and post-contrast


MobiFlex abdomen station pre contrast	MobiFlex abdomen station post contrast
Scan time 0:27 min. TR 2.8 ms, TE 0.98 ms FOV 430 x 376 x 144 mm voxel size 0.84 x 0.84 x 1.6 mm 90 slices	Scan time 0:27 min. TR 2.8 ms, TE 0.98 ms FOV 430 x 376 x 144 mm voxel size 0.84 x 0.84 x 1.6 mm 90 slices


MobiFlex pelvis station pre contrast	MobiFlex pelvis station post contrast
Scan time 0:27 min. TR 2.8 ms, TE 0.98 ms FOV 430 x 376 x 144 mm voxel size 0.84 x 0.84 x 1.6 mm 90 slices	Scan time 0:27 min. TR 2.8 ms, TE 0.98 ms FOV 430 x 376 x 144 mm voxel size 0.84 x 0.84 x 1.6 mm 90 slices


MobiFlex tibia station pre contrast	MobiFlex tibia station post contrast
Scan time 0:27 min. TR 2.8 ms, TE 0.98 ms FOV 430 x 376 x 144 mm voxel size 0.84 x 0.84 x 1.6 mm 90 slices	Scan time 0:27 min. TR 2.8 ms, TE 0.98 ms FOV 430 x 376 x 144 mm voxel size 0.84 x 0.84 x 1.6 mm 90 slices

Subracted images: post contrast - pre contrast


Subtraction abdomen station	Subtraction pelvis station	Subtraction tibia station
The abdomen pre-contrast scan was subtracted from the post-contrast scan as an automatic SmartLine step.	The pelvis pre-contrast scan was subtracted from the post-contrast scan as an automatic SmartLine step.	The tibia pre-contrast scan was subtracted from the post-contrast scan as an automatic SmartLine step.

MIPs (maximum intensity projections) from subtracted datasets


MIP of abdomen station	MIP of pelvis station	MIP of tibia station
The subtracted and enhanced images of the abdomen station are post-processed in the VolumeView package. A MIP with 35 images is generated as a radial stack.	The subtracted and enhanced images of the pelvis station are post-processed in the VolumeView package. A MIP with 35 images is generated as a radial stack.	The subtracted and enhanced images of the tibia station are post-processed in the VolumeView package. A MIP with 35 images is generated as a radial stack.

Peripheral arterial CE MR angiography MobiView MIP projections

The MIPs of the three stations are ready to be fused in the MobiView package. In the following you see a selection of images fused in MobiView and a movie of the complete MobiView data.

MIP projections from the fused MIP dataset generated in the MobiView package.

Click to open this movie in a new window

Patient preparation and positioning

Position the patient feet first on the patient support equipped with the Tabletop Extender.

For the contrast injection a venous access needs to be available.

Before the patient is placed in the isocenter of the magnet, the arms are raised and fixated beside the head.

Provide the patient with the hearing protection and the nurse call.

Lightvisor on the middle of the lower leg.

Contrast agent

Refer to the contrast agent manufacturer for information on dose and indications for use.

It is used for the BolusTrak and the following MobiFlex 3D scans.

Postprocessing

Automated SmartLine postprocessing steps are added to the different scans:

Surveys, VolumeView MIP
Pre- and post-contrast stations, ImageAlgebra subtraction
Post-contrast stations, VolumeView MIP
Post-contrast MIPs of different stations, PicturePlus

In addition, MobiView SmartLine steps are added with a manual start to fuse the MIPs of the surveys and the enhanced MIPs of the different stations. Herewith, user interaction is enabled to allow for adaption of the WW and WL of the different stations before image series are fused and a new image series is generated.

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