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CardioVascular and Interventional Radiology

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01.08.2015 | Clinical Investigation

Evaluation of Liver Stiffness After Radioembolization by Real-Time ShearWave™ Elastography: Preliminary Study

verfasst von: Ahmet Bas, Cesur Samanci, Fatih Gulsen, Murat Cantasdemir, Levent Kabasakal, Fatih Kantarci, Furuzan Numan

Erschienen in: CardioVascular and Interventional Radiology | Ausgabe 4/2015

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Abstract

Purpose

To evaluate the effect of ShearWave™ elastography (SWE) for the assessment of liver fibrosis after radioembolization (RE) in patients with liver malignancies.

Materials and Methods

We prospectively examined the effects of SWE before and after RE in 17 adult patients, from June 2012 to September 2013. All patients underwent SWE within 1 month before and 3 months (96.3 ± 22.9 days) after RE. Measurements were taken in segments III, IV, V, and VI (lateral/medial left lobe and anterior/posterior right lobe, respectively). Liver stiffness was studied in the 39 treated segments.

Results

The mean stiffness of liver tissue according to the pre-RE SWE measurements was not different from the post-RE SWE measurements in the segments that did not undergo RE. Conversely, segments treated with RE were significantly stiffer according to the post-RE SWE measurements (mean SWE 17.4 kPa) than according to the baseline measurements (7.0 kPa) (p < 0.001). Patients with hepatocellular carcinoma and preexisting infection with hepatitis B and C viruses had higher pre-embolization stiffness, and the post-embolization stiffness of the treated segments in these patients was higher than that in the remainder of the study population.

Conclusion

These data suggest that SWE measurements of liver stiffness increase as early as the third month after RE. SWE could be used as a noninvasive complementary imaging method for preliminary assessment of liver fibrosis before and after RE.

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Titel: Evaluation of Liver Stiffness After Radioembolization by Real-Time ShearWave™ Elastography: Preliminary Study
verfasst von: Ahmet Bas
Cesur Samanci
Fatih Gulsen
Murat Cantasdemir
Levent Kabasakal
Fatih Kantarci
Furuzan Numan
Publikationsdatum: 01.08.2015
Verlag: Springer US
Erschienen in: CardioVascular and Interventional Radiology / Ausgabe 4/2015
Print ISSN: 0174-1551
Elektronische ISSN: 1432-086X
DOI: https://doi.org/10.1007/s00270-014-1021-z

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Evaluation of Liver Stiffness After Radioembolization by Real-Time ShearWave™ Elastography: Preliminary Study