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CT-Guided Percutaneous Radiofrequency Ablation of Spleen: A Preliminary Study

Toshiyuki Matsuoka1, Akira Yamamoto, Tomohisa Okuma, Yoshimasa Oyama, Kenji Nakamura and Yuichi Inoue

1 All authors: Department of Radiology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan.


Figure 1
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  		Fig. 1A —Radiofrequency ablation performed under CT guidance. Pig was placed in right lateral position on CT table, and probe was inserted percutaneously.

 

Figure 2
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  		Fig. 1B —Radiofrequency ablation performed under CT guidance. Contrast-enhanced CT image shows probe placed at appropriate position in splenic parenchyma to prevent damage to other organs.

 

Figure 3
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  		Fig. 1C —Radiofrequency ablation performed under CT guidance. Ablation was performed at three points per animal. Contrast-enhanced CT image obtained immediately after procedure shows no hematoma.

 

Figure 4
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  		Fig. 2 —Graph shows numbers of platelets at 2, 4, and 8 weeks for all pigs as a percentage of the count before radiofrequency ablation. Platelet count showed mild increase at 2 and 4 weeks and declined at 8 weeks. RFA = radiofrequency ablation.

 

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