The Catholic University of Korea Industry-Academic Cooperation Foundation

Catholic University Industry Academic Cooperation Foundation

Ra Hyeong Juh, Ho Sang Jin, Joo Young Song, Tae Suk Suh, and Catholic University of Medical College

Tae Suk Suh

Joo Young Jung

Do Kun Yoon

Jeong Woo Lee

Kyoung Sik Choi

Ji Yeon Park

Hae Jin Park

Tae-Ho Kim

Seoung Jun Oh

Sang Won Kang

Kyu Bong Choi

Min Young Lee

Bo Young Choe

Hong Seok Jang

Dong-Seok Shin

Joon Yong Choi

Dong-Su Kim

Min-Seok Cho

Seong-Hee Kang

Kyeong-Hyeon Kim

Jin Beom Chung

Jai Sung Kim

Si Yong Kim

Ra Hyeong Juh

Ho Sang Jin

Seu Ran Lee

Joo Young Song

Hyoung Koo Lee

Won Kyun Jung

Teak Kwon Kim

Ji Na Chang

Yon Lae

Hoi Nam Kim

The present invention relates to a thermoplastic mask monitoring system using a pressure sensor. Specifically, a thermoplastic mask according to the present invention may include: a mask having a shape determined according to a shape of a first region which is at least a part of a patient's body by using thermoplasticity, fixing the first region in close contact with the first region, and receiving radiation; and a pressure sensor provided between the mask and the first region and sensing pressure induced by a space generated between the mask and the first region.

Monitoring system for thermoplastic mask using pressure sensor

An aspect of the present invention provides a rectal phantom unit and a phantom device including the same, including: a holder having a penetration portion formed in a longitudinal direction thereof; a rectal simulant which is inserted to the penetration portion of the holder, includes a plurality of unit plates laminated thereon, and simulates a rectum of a body; and a film which is disposed between the rectal simulant and the holder and measures an absorbed dose of radiation irradiated to the rectal simulant.

Rectal phantom unit and phantom device including the same

A respiratory gating system is disclosed that varies the orientation of a radiation emitting device according to a patient's natural breathing. A breathing respirator is provided that allows the patient's respiration amount to be measured. External markers are adhered to triangulation points around a radiation target region, such as a heart, of the patient. An image diagnosis device images the target region. A computed tomography device reveals movements of the target region caused by the respiration. Triangulations and polynomial approximations are used to estimate the trajectory of the target region in real time. Position coordinates derived from the estimated trajectory are transmitted to the radiation emitting device. The system increases the accuracy and stability of the entire radiation therapy result.

Respiratory gating system for patient using natural breathing method during radiation therapy, and method for emitting radiation thereby

The present invention relates to a head and neck simulation phantom device for simulating the head and neck of a body, the phantom device including: a flat type first plate having a first insertion groove formed on one surface thereof; a flat type second plate disposed to come into contact with the other surface of the first plate and having a second insertion groove formed on the contacted surface with the other surface of the first plate in such a manner as to correspond to the first insertion groove; and a plurality of teeth simulants inserted into the first insertion groove and the second insertion groove and for simulating the teeth of the body.

Head and neck simulation phantom device

A radiation treatment collimator having a multilayered linkage structure, the collimator providing various shapes of spaces to form an irradiation area transmitting radioactive rays therethrough, the collimator comprising: a fixed frame disposed on a plate; multiple pixel board layers fixedly stacked at predetermined intervals on top of each other inside the fixed frame, each pixel board layer being configured in a lattice form and having pixel covers disposed correspondingly to the respective lattices in such a manner as to be open and closed individually; control units disposed on both sides of the fixed frame to individually control the operations of the pixel covers of the pixel board layers; and power source units disposed on the front and rear sides of the fixed frame to supply the pixel board layers with operating power.

Radiation treatment collimator having multilayered linkage structure

A collimator for flow pixel proton therapy providing an irradiation region which controls an intensity of an irradiated proton, including micro-motors arranged at both sides of a main frame connected, one to one, to multiple spread panels arranged in a center opening of the main frame by a corresponding ones of multiple elastic reels, in which a first half of the spread panels are moved to a first side of the main frame and a second half of the spread panels are moved to a second side of the main frame by the opposite micro-motors when a corresponding elastic reel is wound by a corresponding micro-motor, and in which each spread panel is in a stress release state when the corresponding elastic reel is unwound.

Collimator for flow pixel proton therapy

The present invention relates to a voxel-type block phantom for a multifunctional radiation measurement apparatus. A phantom, for adjusting an amount of radiation, has solid pixel blocks, having a radiation measuring device equipped therein and different media and densities from one another, assembled on top of one another so as to be assembled into a 3-dimensional voxel, wherein the phantom is formed by placing a solid block which is appropriate for a density that corresponds to each pixel of the 3-dimensional voxel. An inspector can personally and instantly customize a phantom that is appropriate for a subject to be measured and thus can obtain an accurate measurement value.

Voxel type block phantom for a multifunctional radiation measurement apparatus

A calibration phantom for quality assurance of an image-based radiotherapy apparatus The calibration phantom includes a body comprising a cylindrical acryl member having a predetermined diameter, the body having a center hole at a center axis thereof and a plurality of through-holes in outer circumferential portions thereof at a predetermined interval from the center hole; round stick-type density bars inserted into corresponding through-holes of the body and made of materials each with different densities; an acrylic cover detachably coupled with both ends of the body and having the same diameter as the body; and a plurality of bolts closely fastening the body with the cover by extending through the cover and the body and coupling with the nuts and each made of different materials. The cross-sectional shapes of the density bars and bolts appear on the image scanned by the CT apparatus and the radiotherapy apparatus.

Calibration phantom for quality assurance of image-based radiotherapy apparatus

Provided is a phantom device having an internal organ simulating phantom. The phantom device comprises: a phantom receiving radiation emitted from a radiation emitting unit and comprising therein a simulant that simulates an internal organ; a lifting unit installed under the phantom to support the phantom and moving the phantom relative to the radiation emitting unit, the lifting unit comprising: a worm shaft axially rotated by an external torque and having a worm formed on an outer circumferential surface thereof, a cylindrical worm wheel having gear grooves formed on an outer circumferential surface thereof to engage with the worm and a female screw formed on an inner circumferential surface thereof, and rotated by the axial rotation of the worm shaft; and a driven screw engaging with the female screw of the worm wheel, and moved up and down by the rotation of the worm wheel to move up and down the phantom; and a horizontal moving unit interlocking with the lifting unit and horizontally moving the phantom. Accordingly, since the phantom device can simulate any movement pattern, even the respiratory movement pattern of a patient's internal organ to accurately determine a desired dose of radiation to be delivered to the body part, high quality assurance of radiation therapy equipment can be achieved and therapeutic effect can be improved.

Phantom device having internal organ simulating phantom

Provided is a phantom for evaluating the accuracy of image registration software based on a result of matching tomograms of a predetermined position of the phantom, taken using two or more imaging apparatuses. Accordingly, it is possible to more efficiently evaluate the accuracy of the image registration software by comparing the tomograms with one another using a three-dimensional analysis. In addition, it is possible to facilitate the comparison of the tomograms with one another by installing a plurality of indicating bars in the phantom so that their cross sections can appear on each of the tomograms.

Phantom for evaluating accuracy of image registration software

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Seoul, South Korea

Tae Suk Suh