PET-MRI imaging equipment on in, Gradient Coil tray is included inside the PET detector being wrought PET- MRI can be taken at the same time, of course, the need to enlarge the electromagnet and gradient coil magnetic field inside and outside diameter to make a PET detector installation space is not a separate, removable tray by the PET detector becomes possible, the holding of the PET detector maintenance, and the like or fine-tuning the PET-MRI imaging apparatus including a magnetic field gradient coil, and it comprises a facilitated PET detector is disclosed. According to the present invention, the coaxial alignment (Coaxially aligned) is disposed an electromagnet, the magnetic field gradient coils (Gradient Coil), and a high frequency receiving coil, an electromagnet for generating a static magnetic field in a space for receiving a blood sample, the slope disposed in the electromagnet gradient magnetic field coil for generating a magnetic field, and is formed between the inclined magnetic field coil and the space for receiving the blood sample containing a high-frequency receiving coil for transmitting radio frequency pulses and receiving an MR signal induced from said subject PET- as MRI imaging apparatus, the gradient magnetic field coils are radially installed a PET detector in a cylindrical form one or more trays therein and made of one or more gratings in each tray, characterized in that for mounting a PET detector in each of the grid, PET -MRI a video device.PET-MRI 영상 기기에 있어서, 경사자계코일 내부에 PET 검출기 트레이가 포함됨으로써 전신용 PET-MRI 촬영을 동시에 할 수 있음은 물론, PET 검출기 설치공간을 별도로 만들기 위해 전자석 및 경사자계코일 내부 및 외부 직경을 확대할 필요가 없게 되고, PET 검출기 트레이의 착탈이 가능해짐으로써, PET 검출기의 유지, 보수, 또는 미세조정 등이 용이해지는 PET 검출기를 포함하는 경사자계코일 및 이를 포함하는 PET-MRI 영상 기기가 개시된다. 본 발명에 따르면, 동축정렬(Coaxially aligned) 되어 배치되는 전자석, 경사자계코일(Gradient Coil), 및 고주파 송수신코일로서, 피검체를 수용하는 공간 내에 정적자장을 생성하는 전자석, 상기 전자석 내에 배치되어 경사자계를 생성하는 경사자계코일, 및 상기 경사자계코일과 상기 피검체를 수용하는 공간 사이에 형성되어 무선주파수 펄스를 전송하고 상기 피검체로부터 유도된 MR 신호를 수신하는 고주파 송수신코일을 포함하는
