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Interference screw fragments in knee

Case Study
Goumas, Chris, M.D. Palo Alto Medical Foundation USA

This patient was scanned at Palo Alto Medical Clinic Sports Medicine Center using Achieva 3.0T X-series with SENSE Knee coil.

MR Examination

All images were acquired with the SENSE Knee coil.

FOV 120 mm, slice thickness 2.5 mm.

MR images an interpretation

 PDw SPAIR a-TSE PDw SPAIR
PDw SPAIR a-TSE
PDw SPAIR
 Zoomed Zoomed
Zoomed
Zoomed

 

The coronal PD-weighted, asymmetric TSE, SPAIR image clearly visualizes interference screw fragments on a post ACL repair. The sagittal SPAIR PD-weighted image correlates with the coronal images and demonstrates loose interference fragments of an ACL repair screw. The high resolution of this sequence delineates the remaining threads of the largest remaining part of the screw.

Impact of Achieva 3.0T X-series imaging:

A 3.0T system has significantly higher SNR compared to 1.5T systems, and Dr. Goumas uses that to its full benefit. He has a clear philosophy for orthopedic imaging. He uses a smaller FOV than most, with a higher matrix. The zoomed images demonstrate the excellent spatial resolution and contrast.

 

 

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Jun 15, 2008

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Case Study
Achieva 3.0T, Achieva 3.0T X-series
Release 1, Release 2, Release 2.5
Quasar, Quasar Dual
3T, Knee, Musculoskeletal
 

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