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WO2018155877A1 - Protection pour capture d'image médicale - Google Patents

Protection pour capture d'image médicale Download PDF

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Publication number
WO2018155877A1
WO2018155877A1 PCT/KR2018/002056 KR2018002056W WO2018155877A1 WO 2018155877 A1 WO2018155877 A1 WO 2018155877A1 KR 2018002056 W KR2018002056 W KR 2018002056W WO 2018155877 A1 WO2018155877 A1 WO 2018155877A1
Authority
WO
WIPO (PCT)
Prior art keywords
shielding means
radiation
image
medical image
shielding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2018/002056
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English (en)
Korean (ko)
Inventor
박향수
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thegoodinternational Co Ltd
Original Assignee
Thegoodinternational Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thegoodinternational Co Ltd filed Critical Thegoodinternational Co Ltd
Priority to CN201880003295.4A priority Critical patent/CN109640826A/zh
Publication of WO2018155877A1 publication Critical patent/WO2018155877A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/10—Safety means specially adapted therefor
    • A61B6/107—Protection against radiation, e.g. shielding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/10—Safety means specially adapted therefor
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material

Definitions

  • the present invention relates to a protective device for medical imaging, and more particularly, to computerize the same radiation dose using a shielding means containing a contrast material capable of shielding the radiation to minimize the radiation exposure to the radiation-sensitive title organs when the body is irradiated Medical imaging tests such as tomography (CT) scans, general radiography, and fluoroscopy can effectively protect specific body parts of patients with high radiation sensitivity, such as the breast, thyroid, lens, and gonads of women.
  • Striak Artifact which can be caused by shielding means due to the gap holding member, is minimized so that the image can be accurately read by minimizing the image.
  • the scattering line generated by the shielding means Relates to a medical image photographing reserve a space can be secured so that can be absorbed.
  • protective clothing for workers such as radiologists, who have the potential to be exposed to radiation
  • protective clothing using high atomic number lead (Pb) is widely used to prevent exposure of workers, such as radiation workers, who may be exposed to radiation.
  • Pb high atomic number lead
  • streaks Artifact A certain angle of the line is generated due to the difference in absorption between the surrounding part and the radiation. Phenomena that are difficult to read) have a problem that the reading of the image itself is impossible.
  • the contrast agent is usually injected into the stomach, intestines, blood vessels, cerebrospinal cavity, and joint cavity, so that the tissues or blood vessels can be easily seen during radiographic examinations such as magnetic resonance imaging (MRI) or computed tomography (CT) imaging.
  • MRI magnetic resonance imaging
  • CT computed tomography
  • these contrast agents are generally divided into negative contrast agents and positive contrast agents.
  • a negative contrast agent transmits more X-rays than the surrounding tissues to display an image, while a positive contrast agent absorbs more X-rays to display an image.
  • positive contrast agents include contrast agents containing substances such as iodine or barium sulfate, and negative contrast agents include air, carbon dioxide, and carbon dioxide.
  • Pb protective clothing has a considerable weight to prevent exposure of work workers such as radiation workers who may be exposed to radiation, and solves the problem of musculoskeletal disorders caused by the weight of protective clothing for a long time.
  • protective clothing focusing on absorbing and blocking iodine or barium sulfate, which is used as a raw material of contrast medium, has been proposed.However, when CT is taken while wearing protective clothing using iodine or barium sulfate, the radiation is 100%. Since it is manufactured for the purpose of blocking, there is a problem that the body image cannot be obtained or the image cannot be read due to the streak artifact, similar to the protective clothing made of lead (Pb).
  • the present invention such as breast, thyroid, lens, gonad of the woman at the time of medical imaging such as computed tomography (CT) examination or general imaging examination, fluoroscopy using a shielding means containing a contrast material capable of shielding radiation
  • medical imaging such as computed tomography (CT) examination or general imaging examination
  • CT computed tomography
  • the spacing member is provided on the bottom of the shielding means, streak artifacts that can be caused by the shielding means are caused by artificial shading due to the difference in radiation absorption rate. Due to the difficulty in reading the image due to the minimization of the image), it is possible to accurately read the image and to provide a protective device for medical imaging so that a space for absorbing some radiation that is not absorbed by the shielding means can be absorbed into the air. It aims to do it.
  • the present invention provides a shield for medical imaging including a shielding means containing a contrast material, and a spacing member attached to the bottom surface of the shielding means and spaced apart from the body part by a predetermined distance. do.
  • the bottom surface of the spacing member is further provided with an adhesive means for fixing the spacing member on the body.
  • the shielding means absorbs 10 to 40% of the radiation irradiated toward the body during CT imaging.
  • the spacing member is made of a porous sponge having a density similar to that of air.
  • the thickness of the spacer is to be formed in 10 to 40mm.
  • a woman's breast or breast at the time of medical imaging tests such as CT or general imaging or fluoroscopy using a shielding means containing a contrasting material capable of shielding radiation may be used.
  • medical imaging tests such as CT or general imaging or fluoroscopy using a shielding means containing a contrasting material capable of shielding radiation
  • the gap keeping member is provided on the bottom of the shielding means, the streak artifacts that may be caused by the shielding means are minimized. By doing so, there is an advantage that accurate image reading is possible.
  • a space in which scattering lines generated by the shielding means can be absorbed into the air can be secured, thereby preventing radiation exposure and streaks artifacts caused by scattering lines.
  • FIG. 1 is a perspective view of a protective device for taking a medical image according to an embodiment of the present invention.
  • FIG. 2 is a conceptual diagram of a protective device for taking a medical image according to an embodiment of the present invention.
  • 3 to 5 is a comparison image according to the thickness of the interval maintaining member of the protective device for photographing medical images according to an embodiment of the present invention.
  • FIG. 1 is a perspective view of a protective device for taking a medical image according to an embodiment of the present invention
  • Figure 2 is a conceptual diagram of a protective device for taking a medical image according to an embodiment of the present invention
  • Figures 3 to 5 is an embodiment of the present invention Comparative image according to the thickness of the gap retaining member of the protective device for photographing medical images.
  • the protective device for photographing a medical image includes a shielding means including a contrast material, and a gap maintaining member attached to a bottom of the shielding means to space the shielding means from a body part by a predetermined distance.
  • the shielding means 10 aims to minimize the exposure of the patient to the radiation by using the properties of the contrast material absorbed by the radiation. More specifically, some heading organs, which are irradiated with the same radiation dose 360 degrees in the body during CT imaging, are intended to be irradiated with a minimum radiation dose to obtain a captured image. . That is, the shielding means 10 transmits 10-40% of the primary radiation generated from the X-ray tube to reduce radiation exposure (through shielding through radiation absorption), thereby transmitting the subject's title organs of the human body that are sensitive to radiation.
  • the shielding means 10 is manufactured so that the contrast material can absorb 10 to 40% of the primary radiation generated in the X-ray tube (Tube), in various forms such as sponge, fabric pad Can be prepared.
  • the contrast material 12 included in the shielding means 10 used may be representative of iodine (Iodine) or barium sulfate (BaSO 4 ) capable of absorbing radiation, iodine (Iodine) if the material can absorb other radiation ) Or barium sulfate (BaSO 4 ).
  • the above-described shielding means 10 is manufactured to be deformable to conform to the body bending and is formed in the shape of eight characters shown in the figure, in addition to the various shapes can be modified, the thickness of the thickness of the gap holding member to be described later referring to It is preferable to form from 2mm to 20mm.
  • the above-described shielding means 10 is preferably manufactured to absorb 10 to 40% of the radiation irradiated toward the body during a medical imaging test such as CT or general imaging test, fluoroscopy, This is because unabsorbed primary radiation must be transmitted through the body for CT imaging of the body. At this time, if primary radiation is absorbed to less than 10%, there is a problem that the amount of radiation that is exposed to the body that is sensitive to radiation cannot be reduced, and if absorbed more than 40%, the patient who wants to secure for actual CT This is because there is a problem that the image itself cannot be obtained.
  • a gap holding member 20 is attached to the bottom surface of the above-described shielding means 10, the gap holding member 20 is the body portion to be photographed by separating the above-described shielding means 10 from the body part by a predetermined interval. And serves to secure a space between the shielding means (10).
  • the primary radiation that reaches the shielding means 10 may scatter the radiation while colliding with the shielding means 10. .
  • the scattered line has low energy and straightness, so it moves in a different direction unlike the primary radiation.
  • This scatter line causes a streak artifact phenomenon in the captured image and affects the accuracy, resulting in an inaccurate image. Done. Therefore, the higher the scattering line ratio, the lower the accuracy of the captured image.
  • the above-described spacing maintaining member 20 is further provided so that the scattered line generated by the shielding means 10 can be absorbed into the air before reaching the body so that the scattered line does not affect the photographed image. Streaks of artifacts that can occur in an image can be prevented. Since the second scattering line may occur as the spacing member 20, a porous sponge having a similar density to air is preferably used. In addition, the thickness of the gap holding member should be formed of 10 to 40mm. As can be seen in the experiments described below, streaks (Streak Artifact) may occur in the captured image due to scattering lines generated by the shielding means 10 when less than 10 mm, and when the thickness exceeds 40 mm, the space keeping member is too thick. This is because there is a problem that the elasticity is not tightly fixed to the patient.
  • the bottom surface of the gap holding member 20 is further provided with an adhesive means 30, the adhesive means 30 serves to fix the shielding means 10 and the gap holding member 20 on the body. do.
  • the adhesive means 30 is composed of an adhesive tape 31 attached to a body part, and a release paper 32 separated from the adhesive tape 31 in use. Such an adhesive means 30 may be used as in the present invention, but the adhesive tape 31 can be used as long as it can be attached to the body of course.
  • FIGS. 3 to 5 will be described in detail with respect to the effect of the protective device (1) for taking a medical image according to an embodiment of the present invention.
  • the images of FIGS. 3 to 5 reveal that the head, neck, and chest portions of the whole body phantom model PBU-60 ((Kyoto, kagaku, Japan) were photographed with a Brilliance CT 64-channel CT device. And the shielding means 10 was tested to maintain the radiation shielding rate 30%.
  • the head is axial tomography, section thickness 5.00 mm, X-ray tube voltage 120kv, X-ray tube current 200 mAs
  • neck is spiral tomography, section thickness 1.00 mm, X-ray tube voltage 120kv, X-ray tube current 250 In mAs
  • the chest was photographed with spiral tomography, section thickness 1.00 mm, X-ray tube voltage 120 kv, X-ray tube current 89 mAs.
  • FIG. 3 is an image of the head part, in the case of the first image, which is taken without any protective equipment, and the second image is taken using only the shielding means 10 without the gap maintaining member 20. Images 3 to 8 are taken using the present invention, but the image was taken while changing the thickness of the space maintaining member 20 to 2mm, 4mm, 6mm, 10mm, 12mm, 14mm, respectively.
  • the first image without the shielding means 10 and the interval maintaining member 20 is taken without the streak artifact phenomenon, accurate image reading is possible, but the body part of the patient may be exposed to the radiation exposure as it is.
  • the shielding means 10 is used to prevent radiation exposure, but strick artifacts occur, so that accurate image reading is not possible.
  • the spacing member 20 having a thickness of 10 mm is preferably used together with the shielding means 10.
  • Figure 4 is an image taken to the neck area, in the case of the first image is taken without any protective equipment, the second to eighth image is taken using the present invention, but the thickness of the interval maintaining member 20 The images were taken while changing to 2mm, 4mm, 8mm, 16mm, 20mm, 24mm and 28mm respectively.
  • the spacing member 20 having a thickness of 28 mm is preferably used together with the shielding means 10.
  • FIG. 5 is an image of the chest, and the first image is taken without any protective equipment, and the second image is taken using only the shielding means 10 without the gap maintaining member 20. Images 3 to 8 are taken using the present invention, but the image was taken while changing the thickness of the space maintaining member 20 to 2mm, 4mm, 6mm, 10mm, 12mm, 14mm, respectively.
  • the first image without the shielding means 10 and the interval maintaining member 20 is taken without the streak artifact phenomenon, accurate image reading is possible, but the body part of the patient may be exposed to the radiation exposure as it is.
  • the shielding means 10 is used to prevent radiation exposure, but strick artifacts occur, so that accurate image reading is not possible.
  • the spacing member 20 As the thickness of the spacing member 20 increases, the streak artifact phenomenon is reduced, when the thickness of the spacing member 20 is 14mm without 1 strick artifact phenomenon It is confirmed that the same image as the first image is taken. Therefore, in the case of the head, it was determined that the spacing member 20 having a thickness of 14 mm is preferably used together with the shielding means 10.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

La présente invention concerne une protection pour la capture d'image médicale, qui peut : protéger efficacement des parties corporelles spécifiques d'un patient, telles que le sein féminin, la thyroïde, les lentilles et la glande génitale, présentant une sensibilité élevée au rayonnement, pendant un contrôle d'image médicale telle qu'un contrôle tomodensitométrique (CT), un contrôle d'imagerie normale ou une fluoroscopie, à l'aide d'un moyen de protection comprenant un matériau de contraste capable de protéger d'un rayonnement; minimiser les images avec un artéfact de stries (phénomène dans lequel l'apparition d'une ombre artificielle due à une différence de taux d'absorption de rayonnement provoque une difficulté d'interprétation d'image) qui peut se produire en raison du moyen de protection, en ayant un élément de maintien de distance au fond du moyen de protection, permettant ainsi une interprétation d'image précise; et sécuriser un espace permettant à des rayons diffusés générés en raison du moyen de protection d'être absorbés dans l'air. La protection pour capture d'image médicale selon la présente invention comprend les moyens de protection comprenant un matériau de contraste, et l'élément de maintien de distance fixé au fond du moyen de protection et séparant le moyen de proection d'une partie du corps par une distance prédéterminée.
PCT/KR2018/002056 2017-02-21 2018-02-20 Protection pour capture d'image médicale Ceased WO2018155877A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880003295.4A CN109640826A (zh) 2017-02-21 2018-02-20 医疗影像拍摄用保护件

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KR10-2017-0022721 2017-02-21
KR1020170022721A KR101967664B1 (ko) 2017-02-21 2017-02-21 의료영상 촬영용 보호구

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KR102155625B1 (ko) * 2018-11-05 2020-09-15 극동대학교 산학협력단 유방촬영용 방사선 차폐복
KR20200077734A (ko) 2018-12-21 2020-07-01 주식회사 더굳인터내셔널 의료영상 촬영용 보호구
KR20210027724A (ko) 2019-09-03 2021-03-11 주식회사 더굳인터내셔널 선량차폐섬유를 이용한 의료용 차폐포
KR102671365B1 (ko) 2021-08-30 2024-05-30 연세대학교 산학협력단 방사선 치료용 산란선 차폐 속옷
KR102596652B1 (ko) 2021-03-30 2023-10-31 연세대학교 산학협력단 방사선 치료를 위한 방사선 차폐의 원리가 적용된 산란선 차폐 브래지어
KR102567406B1 (ko) 2021-08-30 2023-08-14 연세대학교 산학협력단 슬라이드식 방사선 차폐장치
KR102793279B1 (ko) 2022-07-27 2025-04-07 사회복지법인 삼성생명공익재단 두경부 ct 검사용 스킨 필터

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KR101967664B1 (ko) 2019-04-11
KR20180096253A (ko) 2018-08-29
CN109640826A (zh) 2019-04-16

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