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Image-guided marker placement in liver tumors for stereotactic radiotherapy: technique and safety

Vandenbroucke, Frederik
Craggs, Barbara
Buls, Nico
de Mey, J.
Published in Journal of Computer Assisted Tomography. 2010, vol. 34, no. 3, p. 367-371
Abstract PURPOSE: To evaluate the technique and safety of percutaneous radiopaque gold marker placement in the liver before external stereotactic radiotherapy for intrahepatic tumors. MATERIALS AND METHODS: Thirteen patients were included in this study. One gold marker per patient was placed using a computed tomographic fluoroscopy procedure. Follow-up was carried out with a multislice computed tomographic scan. RESULTS: A marker was placed in the center (n = 6) or in the periphery (n = 7) of the target lesion. No immediate complications were noted. Long-term follow-up showed changes in coil position relative to liver anatomy in 4 cases; all 4 markers were placed in the center of the target lesion. No other long-term complications were seen. CONCLUSIONS: Radiopaque markers can be placed safely in liver lesions before external stereotactic radiotherapy. However, marker displacement can occur early, thereby compromising the precision of the planned treatment. The decreased size of the tumor as a response to therapy was responsible for late migration in this small series.
Keywords AgedAged, 80 and overFemaleFollow-Up StudiesGold/*diagnostic useHumansLiver Neoplasms/*surgeryMaleMiddle AgedRadiosurgery/*methods*Tomography, X-Ray Computed
PMID: 20498537
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VANDENBROUCKE, Frederik et al. Image-guided marker placement in liver tumors for stereotactic radiotherapy: technique and safety. In: Journal of Computer Assisted Tomography, 2010, vol. 34, n° 3, p. 367-371. https://archive-ouverte.unige.ch/unige:21363

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Deposited on : 2012-05-23

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