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Ewing sarcoma of ankle

Case Study
Dr. Pans, Steven, M.D. Leuven, University of Leuven Belgium

Patient history

A 26-year-old male with ankle pain underwent an MR examination on the Achieva 3.0T TX with MultiTransmit at Leuven University Hospital, Belgium.

MR examination

The Achieva 3.0T TX with 8-channel SENSE Knee coil was used.
Patient position prone, feet first.

Sequences used:
T1 Sag and Tra,
T2 SPAIR Sag and Tra,
Diffusion WI (6 b-values),
4D THRIVE with color maps (ME, Win, Wout, Area), sag and ax T1.

Total scan time was 35 minutes.

Images

Before therapy
 T1 T2 SPAIR
T1
T2 SPAIR
 T2 SPAIR DWI b1000 ADC
T2 SPAIR
DWI b1000
ADC
 4D THRIVE Perfusion map
4D THRIVE
Perfusion map


After 3 weeks of therapy
 T2 SPAIR DWI b1000 ADC
T2 SPAIR
DWI b1000
ADC


The intra-and extramedullary bone tumor in the distal part of the tibia is hyperintense on the b1000 image. The perfusion map calculated from the 4D THRIVE correlates well with the b1000 image.

After 3 weeks of chemotherapy, a signal decrease on b1000 and increase of ADC is clearly visible.

Diagnosis

The bone tumor is well visualized on the MR images.
MR findings demonstrate changes after 3 weeks of therapy.

Clinical impact of the Achieva 3.0T TX with MultiTransmit

The Leuven team is particularly impressed with DWI and WB DWI on the Philips Achieva 3.0T TX

system. Almost every patient with bone or soft tissue tumor in the department is scanned with 4D THRIVE and DWI.

On the Achieva 3.0T TX, including DWI adds no more than about 3 minutes to the scan, rather than the 10 to 12 minutes extra on a system without MultiTransmit.  

 

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Jun 10, 2011

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Case Study
Achieva 3.0T TX
Release 2.6, Release 3.2
Quasar, Quasar Dual
Ankle, Ewing sarcoma, Musculoskeletal, Oncology
 

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