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Respiratory motion tracking system of hepatocellular carcinoma treatment using FUS

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Tumor of the monitor ultrasonography was tracked in the small square, and it was tracked successfully in breath out position
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Figure 1: Tumor of the monitor ultrasonography was tracked in the small square, and it was tracked successfully in breath out position

Mentions: In 6 cases of HCC, we evaluated the tracking system according to the tumor size, and the tracking of the tumor larger 3cm in diameter were successfully performed in all cases (n=2). On the other hand, the tracking of the tumor smaller than 3cm were performed successfully in 3 out of 4 cases. The reason for motion trackings were not performed well was thought to be that the tumor contour became unclear because the maximal cross section of the tumor go out of the plane by the respiratory movement. By using the video images during the FUS treatment (Fig. 1, Fig. 2), we evaluated the respiratory tracking, and the tumor was successfully tracked. And the tumor after FUS treatment was also tracked well even after the presence of the hyperecho around the tumor (Fig. 3, Fig. 4). In conclusion, the respiratory motion tracking using template matching method was successfully performed and have a possibility to shorten the FUS treatment time.


Respiratory motion tracking system of hepatocellular carcinoma treatment using FUS
Tumor of the monitor ultrasonography was tracked in the small square, and it was tracked successfully in breath out position
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4489608&req=5

Figure 1: Tumor of the monitor ultrasonography was tracked in the small square, and it was tracked successfully in breath out position
Mentions: In 6 cases of HCC, we evaluated the tracking system according to the tumor size, and the tracking of the tumor larger 3cm in diameter were successfully performed in all cases (n=2). On the other hand, the tracking of the tumor smaller than 3cm were performed successfully in 3 out of 4 cases. The reason for motion trackings were not performed well was thought to be that the tumor contour became unclear because the maximal cross section of the tumor go out of the plane by the respiratory movement. By using the video images during the FUS treatment (Fig. 1, Fig. 2), we evaluated the respiratory tracking, and the tumor was successfully tracked. And the tumor after FUS treatment was also tracked well even after the presence of the hyperecho around the tumor (Fig. 3, Fig. 4). In conclusion, the respiratory motion tracking using template matching method was successfully performed and have a possibility to shorten the FUS treatment time.

View Article: PubMed Central - HTML

No MeSH data available.


Related in: MedlinePlus