Computed tomography-guided puncture using a mobile application for a motion sensor-equipped smartphone

摘要

Computed tomography (CT)-guided puncture is one of the most widely used interventional radiology techniques, being employed in biopsies, drainage, and radiofrequency ablation procedures(1–8). The technique varies greatly ac cording to the imaging method chosen to guide the proce dures. The disadvantage of using CT fluoroscopy as a real time method is its tendency to increase exposure to ionizing radiation(9,10). However, it has some real advantages, being able to provide real-time target locations, identify the posi tions of surrounding organs, and show the location of the puncture needle(11). However, it is expensive to install and is therefore unavailable in many regions and cities. Therefore, the use of non-fluoroscopic puncture techniques continues to play an important role in current practice(12).