Abstract
The puncture guided by ultrasonic diagnostic equipment plays an important role in the diagnosis of digestive organs. The use of a 4D probe has increased recently and bean applied to diagnosis and needle treatment. With a 2D screen it is difficult to locate the puncture and the target in a thickness direction. With puncture therapy it is essential to know the position of the needle, the circumference of the organ and the puncture site of the target tumor. Because deep localization of the needle and confirmation of its direction cannot often be determined, we studied the use of a 4D probe (GE Yokogawa Medical Systems Co., Ltd. Logiq 7 BT 07, equipped with a 4D 3 CL probe) to support the puncture with conventional MPR. We experimented with a development type RFA needle for therapy after puncture simulation under real time 4D. For the puncture we used tomographic ultrasound imaging (TUI). We used TUI by spurious tumor cauterization and HCC cauterization in a clinical case. The position of the RFA needle could be observed in the liver in real time and whether the needle covered the whole HCC. In addition, it was confirmed that in the hyperechoic area, cauterization covered the entire tumor. This Logiq 7 BT 07 GE Yokogawa Medical Systems Co., Ltd. 4D probe was able to provide puncture protocol under real time 3D (4D) TUI and increase the safety of puncture procedures. It is thought that we could improve the safety and an authenticity of the puncture with this method.
