JP6335287B2 - 造影式***撮像方法及び造影剤基準挿入体 - Google Patents
造影式***撮像方法及び造影剤基準挿入体 Download PDFInfo
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- JP6335287B2 JP6335287B2 JP2016522879A JP2016522879A JP6335287B2 JP 6335287 B2 JP6335287 B2 JP 6335287B2 JP 2016522879 A JP2016522879 A JP 2016522879A JP 2016522879 A JP2016522879 A JP 2016522879A JP 6335287 B2 JP6335287 B2 JP 6335287B2
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- 210000000481 breast Anatomy 0.000 title claims description 104
- 239000002872 contrast media Substances 0.000 title claims description 67
- 238000003384 imaging method Methods 0.000 title claims description 26
- 238000009607 mammography Methods 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 32
- 230000003902 lesion Effects 0.000 claims description 27
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 19
- 229910052740 iodine Inorganic materials 0.000 claims description 18
- 239000011630 iodine Substances 0.000 claims description 18
- 206010006187 Breast cancer Diseases 0.000 claims description 4
- 208000026310 Breast neoplasm Diseases 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 3
- 239000010408 film Substances 0.000 description 57
- 238000011002 quantification Methods 0.000 description 15
- 239000010410 layer Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000037182 bone density Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000003748 differential diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000013442 quality metrics Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012502 risk assessment Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- A61B6/48—Diagnostic techniques
- A61B6/481—Diagnostic techniques involving the use of contrast agents
-
- 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
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
-
- 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
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
2 圧迫板
3 ***
4 X線検出装置
5 X線信号
6 病変部位
7 基準フィルム
8 上部層
9 下部層
10 層
71 低濃度ゾーン
72 中濃度ゾーン
73 高濃度ゾーン
th 厚さ
C 濃度
L あてはめ関数
P1、P2、P3 点
SI 信号強度
S1 ステップ
S2 ステップ
S3 ステップ
S4 ステップ
S5 ステップ
S6 ステップ
Claims (16)
- 造影剤が注入された患者の***(3)と少なくとも2つの既知の濃度の前記造影剤を含む基準挿入体(7)との両方を同時に撮像すること(S3)、及び
前記***(3)の画像と基準挿入体(7)の画像とを比較することにより造影式***画像の増強を定量化すること(S4)
を含む造影式***撮像方法であって、
前記既知の濃度の前記造影剤に対応する信号強度(SI)、又は前記既知の濃度の前記造影剤に対応する信号強度と***背景に対応する信号強度との間の信号強度差が、前記造影式***画像の前記増強を定量化するために使用されるあてはめ関数(L)を評価するために、前記既知の基準濃度に対してプロットされる、造影式***撮像方法。 - 前記基準挿入体(7)がフィルムである、請求項1に記載の造影式***撮像方法。
- 前記フィルム(7)が、2mmよりも小さい、好ましくは1mmよりも小さい厚さ(th)を有する、請求項2に記載の造影式***撮像方法。
- 前記フィルム(7)が、カプセル化された造影剤と共に層(8、9)間に積層されている、請求項2又は3に記載の造影式***撮像方法。
- 前記造影剤が前記フィルム(7)上に印刷されており又は前記フィルム(7)内に印刷されている、請求項2又は3に記載の造影式***撮像方法。
- 前記基準挿入体(7)が、前記基準挿入体(7)の異なるエリア(71、72、73)に配置された幾つかの異なる既知の濃度の前記造影剤、好ましくは2つ〜5つの異なる既知の濃度の前記造影剤、より好ましくは3つの異なる既知の濃度の前記造影剤をそれぞれに含む、請求項1乃至5のいずれか1項に記載の造影式***撮像方法。
- 前記異なる既知の濃度の前記造影剤の最小濃度が、前記基準挿入体(7)の厚さ(th)に対して1平方センチメートル当りヨウ素2mgよりも小さく、好ましくは前記基準挿入体(7)の厚さ(th)に対して1平方センチメートル当りヨウ素1mgよりも小さい、請求項6に記載の造影式***撮像方法。
- 前記異なる既知の濃度の前記造影剤の最大濃度が、前記基準挿入体(7)の厚さ(th)に対して1平方センチメートル当りヨウ素5mgよりも大きい、請求項6又は7に記載の造影式***撮像方法。
- 前記基準挿入体(7)が、撮像された***の表面に、以前に特定された***病変部位(6)の傍らに配置される、請求項1乃至8のいずれか1項に記載の造影式***撮像方法。
- 前記あてはめ関数(L)が線形である、請求項1乃至9のいずれか1項に記載の造影式***撮像方法。
- 前記方法が、乳癌治療を経過観察するために異なる時間に実施される、請求項1乃至10のいずれか1項に記載の造影式***撮像方法。
- 前記方法がX線造影マンモグラフィ、好ましくはデュアルエナジー造影マンモグラフィである、請求項1乃至11のいずれか1項に記載の造影式***撮像方法。
- 造影剤が注入された患者の***(3)と同時に撮像される挿入体であって、造影式***画像の増強を定量化するための、造影式***画像用の比較基準として役立つように少なくとも2つの既知の濃度の造影剤を含む挿入体であり、
前記挿入体(7)はフィルムであり、
前記既知の濃度の前記造影剤に対応する信号強度(SI)、又は前記既知の濃度の前記造影剤に対応する信号強度と***背景に対応する信号強度との間の信号強度差が、前記造影式***画像の前記増強を定量化するために使用されるあてはめ関数(L)を評価するために、前記既知の基準濃度に対してプロットされる、挿入体。 - 前記フィルム(7)が、前記基準挿入体(7)の異なるエリア(71、72、73)にそれぞれ配置された、幾つかの異なる既知の濃度の前記造影剤、好ましくは2つ〜5つの異なる既知の濃度の前記造影剤、より好ましくは3つの異なる既知の濃度の前記造影剤を含む、請求項13に記載の挿入体。
- 前記フィルム(7)が、カプセル化された造影剤と共に層(8、9)間に積層されており、又は前記造影剤が前記フィルム(7)上に印刷され若しくは前記フィルム(7)内に印刷されている、請求項13又は14に記載の挿入体。
- 造影剤が注入された患者の***(3)と同時に撮像され、造影式***撮像に使用される少なくとも2つの既知の濃度の造影剤を含むフィルムであって、
前記既知の濃度の前記造影剤に対応する信号強度(SI)、又は前記既知の濃度の前記造影剤に対応する信号強度と***背景に対応する信号強度との間の信号強度差が、前記造影式***画像の前記増強を定量化するために使用されるあてはめ関数(L)を評価するために、前記既知の基準濃度に対してプロットされる、フィルム。
Applications Claiming Priority (1)
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PCT/IB2013/001765 WO2015001372A1 (en) | 2013-07-03 | 2013-07-03 | Method of contrast enhanced breast imaging, and contrast agent reference insert |
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JP6335287B2 true JP6335287B2 (ja) | 2018-05-30 |
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US (1) | US10512439B2 (ja) |
EP (1) | EP3016591B1 (ja) |
JP (1) | JP6335287B2 (ja) |
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JP6395504B2 (ja) * | 2014-08-20 | 2018-09-26 | キヤノン株式会社 | 放射線撮影装置の評価方法、及び評価方法に用いるファントム |
CN110381837A (zh) * | 2017-01-10 | 2019-10-25 | 媒堤亚株式会社 | 骨密度测定装置、骨密度测定***以及拍摄辅助件 |
EP3659508A4 (en) | 2017-07-27 | 2020-07-15 | FUJIFILM Corporation | X-RAY IMAGING SYSTEM, PHANTOM AND EVALUATION METHOD |
KR102207974B1 (ko) * | 2019-04-26 | 2021-01-25 | 신한대학교 산학협력단 | 방사선을 이용한 유방촬영 교육 및 실습용 유방팬텀 |
US11995831B2 (en) | 2021-04-09 | 2024-05-28 | Wisconsin Alumni Research Foundation | Method and apparatus for optimizing the use of contrast agents during medical imaging |
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- 2013-07-03 WO PCT/IB2013/001765 patent/WO2015001372A1/en active Application Filing
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- 2013-07-03 JP JP2016522879A patent/JP6335287B2/ja active Active
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EP3016591B1 (en) | 2020-09-02 |
US10512439B2 (en) | 2019-12-24 |
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