와인색 반영구 문신용 염료가 자기공명영상검사에 미치는 영향 및 발열 감소 방안 연구 = The Effects of a Wine-Colored Semi-permanent Tattoo Dye on MRI and Measures to Reduce Heat Generation

다국어 초록 (Multilingual Abstract)

The purpose of this study was to analyze the effect of a wine-colored semi-permanent tattoo dye on signal intensity during magnetic resonance imaging (MRI) and to determine how to reduce heat generation using electromagnetic wave absorption. Agar and a wine-colored semi-permanent tattoo dye were used to create a phantom with spreading dye (pad phantom) and a phantom with clumped dye (injection phantom). Both phantoms were examined in 2D and 3D using turbo spin echo (TSE) and gradient (GRE) pulse sequences in a whole-body magnetic resonance imaging system. Post-test image analysis measured the signal intensity of the phantom's body, dye, air bubbles, and background a total of 720 times. In order to determine how to reduce heat generation by absorbing electromagnetic waves, an thermometer was inserted into the phantom to check the temperature change before and after the test. In this case, the atmospheric temperature was measured before the test to take into account the change in atmospheric temperature, and a fan built into the device, wet gauze and ice were used to reduce heat generation. The signal strength was greater in 3D images than in 2D images and the TSE series was better than the GRE series. Most notably, the signal strength of the wine-colored semi-permanent tattoo dye was found to be lower than the magnetization-sensitive artifacts caused by air. For the temperature measurement test, both the pad-type phantom and the injection-type phantom increased the temperature during the test, and the methods to reduce the temperature were ice pads, fans, and wet gauze. The results confirm that a wine-colored semi-permanent tattoo dye can cause imaging and patient safety issues in magnetic resonance imaging, and that ice pads are an effective way to reduce fever.