Abstract #0148
In vivo multifrequency MR elastography for the assessment of portal hypertension before and after transjugular intrahepatic portosystemic shunt (TIPS) implantation
Jing Guo 1 , Christian Althoff 2 , Carsten Bning 3 , Eckart Schott 4 , Thomas Krncke 5 , Jrgen Braun 6 , and Ingolf Sack 2
1
Radiology, Charit - Universittsmedizin
Berlin, Berlin, Berlin, Germany,
2
Radiology,
Charit - Universittsmedizin Berlin, Berlin, Germany,
3
Krankenhaus
Waldfriede,Akademisches Lehrkrankenhaus der Charit,
Berlin, Germany,
4
Department
of Hepatology and Gastroenterology, Charit -
Universittsmedizin Berlin, Berlin, Germany,
5
Clinic
for Diagnostic Radiology and Neuroradiology, Klinikum
Augsburg, Bavaria, Germany,
6
Department
of Medical Informatics, Charit - Universittsmedizin
Berlin, Berlin, Germany
High-resolution multifrequency MRE based on MDEV
inversion was applied to patients with portal
hypertension before and after TIPS placement. The
magnitude shear moduli |
G
*
|of liver
and spleen were both sensitive to the portal
decompression following TIPS. The observed linear
correlation between spleen viscoelasticity and HVPG
raises the prospect of an image-based and noninvasive
assessment of portal pressure by MR elastography in the
follow-up of TIPS placements.
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