Abstract: The present disclosure relates to a method for carrying out dose delivery quality assurance for high-precision radiation treatment, in which parameters affecting a pass rate of dose delivery quality assurance can be derived through regression analysis, which is a known statistical analysis method, and a pass rate prediction model capable of predicting each parameter and the pass rate of dose delivery quality assurance can be derived, and accordingly, it can be predicted in advance whether dose delivery quality assurance will be passed according to the parameters through the above prediction model, without repeatedly carrying out dose delivery quality assurance according to a patient's treatment plan, and as a result, the efficiency of dose delivery quality assurance can be enhanced, and the time or capacity required for such quality assurance is reduced, such that radiation treatment for an actual patient can be quickly and precisely carried out.

Abstract: A lung phantom unit for radiotherapy according to an embodiment of the present disclosure may arrange, at a location not affected by a magnetic field, a phantom driving cylinder and a driving device which may move a lung mimic and a tumor mimic in a lung simulation block. The lung phantom unit may be used for general purpose even as a phantom for MRI-based and CT image-based radiotherapy. Since lung and tumor motions are implemented by air injection, it may be possible to precisely measure the motion and volume change of a lung according to subtle changes in air pressure so that customized radiotherapy suitable for a patient having various breathing patterns is possible.

Abstract: The present invention relates to a radiation amount estimating method, and more particularly, to a radiation amount estimating method of an MRI based composite image using a lookup table. To this end, the object of the present invention is to provide a radiation dose estimating method of an MRI based composite image using a lookup table including: generating a lookup table representing a linear attenuation coefficient of a region of interest from a CT image (S100); photographing at least two of a T1 image, a T2 image, and a PETRA image of a patient from MRI equipment (S120); generating a composite image by superimposing the photographed images (S140); representing a border line of the region of interest in the composite image to distinguish the region of interest (S160); designating the linear attenuation coefficient of the lookup table in the distinguished region of interest (S180); and estimating a radiation dose based on the composite image to which the linear attenuation coefficient is designated (S200).

Abstract: The present invention relates to a radiation amount estimating method, and more particularly, to a radiation amount estimating method of an MRI based composite image using a lookup table. To this end, the object of the present invention is to provide a radiation dose estimating method of an MRI based composite image using a lookup table including: generating a lookup table representing a linear attenuation coefficient of a region of interest from a CT image (S100); photographing at least two of a T1 image, a T2 image, and a PETRA image of a patient from MRI equipment (S120); generating a composite image by superimposing the photographed images (S140); representing a border line of the region of interest in the composite image to distinguish the region of interest (S160); designating the linear attenuation coefficient of the lookup table in the distinguished region of interest (S180); and estimating a radiation dose based on the composite image to which the linear attenuation coefficient is designated (S200).

Abstract: The present invention relates to a respiration mimic device, and includes a chamber having an interior space filled with fluid, a lung mimic, to be contracted or expanded, accommodated at the interior space in the chamber; a lung copying unit including a tumor mimic distributed in the lung mimic; a driving unit for copying motion patterns of the lung according to actual respiration and contracting or expanding the lung mimic; and an abdomen copying unit for elevating vertically according to contraction or expansion of the lung mimic and copying an abdomen.

Abstract: The present disclosure relates to a lung phantom system provided with an elastic film that separates a first chamber and a second chamber having inner space that may be filled with liquid, the elastic film configured to repeat expansion and restoration according to introduction and discharge of liquid, thereby providing an effect of accurately replicating movements of an actual lung during its respiratory movement.

Abstract: The present invention relates to a respiration mimic device, and includes a chamber having an interior space filled with fluid, a lung mimic, to be contracted or expanded, accommodated at the interior space in the chamber; a lung copying unit including a tumor mimic distributed in the lung mimic; a driving unit for copying motion patterns of the lung according to actual respiration and contracting or expanding the lung mimic; and an abdomen copying unit for elevating vertically according to contraction or expansion of the lung mimic and copying an abdomen.