JP4679068B2 - X線コンピュータ断層撮影装置 - Google Patents
X線コンピュータ断層撮影装置 Download PDFInfo
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- JP4679068B2 JP4679068B2 JP2004129937A JP2004129937A JP4679068B2 JP 4679068 B2 JP4679068 B2 JP 4679068B2 JP 2004129937 A JP2004129937 A JP 2004129937A JP 2004129937 A JP2004129937 A JP 2004129937A JP 4679068 B2 JP4679068 B2 JP 4679068B2
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- 238000002591 computed tomography Methods 0.000 title claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 239000002872 contrast media Substances 0.000 claims description 38
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 230000037396 body weight Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 description 43
- 238000000034 method Methods 0.000 description 23
- 230000005540 biological transmission Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000013500 data storage Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 238000007781 pre-processing Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- A61B6/46—Arrangements for interfacing with the operator or the patient
- A61B6/461—Displaying means of special interest
- A61B6/465—Displaying means of special interest adapted to display user selection data, e.g. graphical user interface, icons or menus
-
- 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
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/34—Anode current, heater current or heater voltage of X-ray tube
-
- 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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
-
- 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
- A61B6/46—Arrangements for interfacing with the operator or the patient
- A61B6/467—Arrangements for interfacing with the operator or the patient characterised by special input means
-
- 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
- A61B6/46—Arrangements for interfacing with the operator or the patient
- A61B6/467—Arrangements for interfacing with the operator or the patient characterised by special input means
- A61B6/469—Arrangements for interfacing with the operator or the patient characterised by special input means for selecting a region of interest [ROI]
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Human Computer Interaction (AREA)
- Toxicology (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
Claims (6)
- 被検体に関する多方向にわたる投影データを収集する手段と、
前記収集された投影データから画像データを再構成する手段と、
前記被検体に関する造影剤が注入されていない画像データと、前記被検体に造影剤を注入する注入量を含む情報とに基づいて、管電流値を決定する管電流値決定手段とを具備することを特徴とするX線コンピュータ断層撮影装置。 - 前記管電流値は、操作者により指定又は選択された画質レベルに対応することを特徴とする請求項1記載のX線コンピュータ断層撮影装置。
- 前記情報には、前記造影剤の注入量に加えて、前記被検体の体重および前記造影剤の濃度が含まれることを特徴とする請求項1記載のX線コンピュータ断層撮影装置。
- 前記造影剤に関する情報には、前記造影剤の注入速度、前記造影剤の注入から前記投影データの収集までの経過時間が含まれることを特徴とする請求項1記載のX線コンピュータ断層撮影装置。
- 被検体に関する多方向にわたる投影データを収集する手段と、
前記収集された投影データから画像データを再構成する手段と、
前記被検体に関する造影剤が注入されていない画像データと、前記被検体に造影剤を注入する造影検査に関する情報とに基づいて、管電流値を決定する管電流値決定手段とを具備し、
前記管電流値決定手段は、
前記被検体に関するスキャノグラムに基づいて前記被検体の水等価厚を計算する手段と、
前記造影検査に関する情報に基づいて、前記計算された水等価厚を補正する手段と、
前記補正された水等価厚に基づいて前記管電流値を決定する手段とを有することを特徴とするX線コンピュータ断層撮影装置。 - 前記造影剤に関する情報には、前記被検体の体重、前記造影剤の注入量、および前記造影剤の濃度が含まれ、
前記水等価厚を補正する手段は、前記被検体の体重、前記造影剤の注入量及び前記造影剤の濃度に対する係数の対応表を記憶する記憶部を有し、前記対応表から特定される係数を前記計算された水等価厚に乗算することにより前記計算された水等価厚を修正することを特徴とする請求項5記載のX線コンピュータ断層撮影装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004129937A JP4679068B2 (ja) | 2004-04-26 | 2004-04-26 | X線コンピュータ断層撮影装置 |
US11/111,854 US7106824B2 (en) | 2004-04-26 | 2005-04-22 | X-ray computed tomographic apparatus |
CNB2005100668199A CN100381105C (zh) | 2004-04-26 | 2005-04-26 | X射线计算机断层摄影装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004129937A JP4679068B2 (ja) | 2004-04-26 | 2004-04-26 | X線コンピュータ断層撮影装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005305026A JP2005305026A (ja) | 2005-11-04 |
JP4679068B2 true JP4679068B2 (ja) | 2011-04-27 |
Family
ID=35239447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004129937A Expired - Lifetime JP4679068B2 (ja) | 2004-04-26 | 2004-04-26 | X線コンピュータ断層撮影装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7106824B2 (ja) |
JP (1) | JP4679068B2 (ja) |
CN (1) | CN100381105C (ja) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4469555B2 (ja) * | 2003-03-28 | 2010-05-26 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
US7286641B2 (en) * | 2003-05-16 | 2007-10-23 | Koninklijke Philips Electronics, N.V. | Method and device for exposing x-ray images |
CN101128153B (zh) * | 2005-02-25 | 2010-09-29 | 株式会社日立医药 | X射线ct设备 |
WO2007116892A1 (ja) * | 2006-04-06 | 2007-10-18 | Nemoto Kyorindo Co., Ltd. | 薬液注入装置 |
KR100830198B1 (ko) * | 2006-04-20 | 2008-05-16 | 허감 | 관상동맥 ct 혈관조영술에서의 ct번호의 표준편차를이용한 방사선량 조절방법 및 장치 |
JP4509971B2 (ja) * | 2006-06-09 | 2010-07-21 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | X線ct装置 |
JP5091442B2 (ja) * | 2006-08-25 | 2012-12-05 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
DE102006048233A1 (de) * | 2006-10-11 | 2008-04-17 | Siemens Ag | Röntgenanordnung mit einem Konverter zur Umwandlung von Systemparametern in Bildkettenparametern und zugehöriges Röntgenverfahren |
CN101336828B (zh) * | 2007-07-06 | 2010-10-13 | Ge医疗***环球技术有限公司 | Ct值校正文件的获取方法和装置 |
JP5269358B2 (ja) * | 2007-07-18 | 2013-08-21 | 株式会社東芝 | X線ct装置 |
JP2009028065A (ja) * | 2007-07-24 | 2009-02-12 | Toshiba Corp | X線ct装置 |
DE102008014738A1 (de) * | 2008-03-18 | 2009-09-24 | Siemens Aktiengesellschaft | Verfahren zur medizinischen Bildgebung sowie medizinische Bildgebungsvorrichtung |
JP5523726B2 (ja) * | 2008-04-04 | 2014-06-18 | 株式会社東芝 | X線ct装置 |
WO2010001845A1 (ja) * | 2008-07-04 | 2010-01-07 | 株式会社 日立メディコ | X線ct装置 |
JP2010213798A (ja) * | 2009-03-13 | 2010-09-30 | Toshiba Corp | 循環器用x線診断システム |
CN104970817B (zh) * | 2010-09-07 | 2017-10-31 | 株式会社日立制作所 | X射线ct装置及管电流决定方法 |
US9492136B2 (en) | 2012-01-06 | 2016-11-15 | Indiana University Research And Technology Corporation | Method and apparatus that automates tube current and voltage selection for CT scans |
CN103813752B (zh) * | 2012-01-27 | 2017-11-10 | 东芝医疗***株式会社 | 医用图像处理装置 |
JP6009799B2 (ja) * | 2012-04-11 | 2016-10-19 | 東芝メディカルシステムズ株式会社 | X線画像撮影装置 |
US9168010B2 (en) | 2012-04-11 | 2015-10-27 | Kabushiki Kaisha Toshiba | X-ray imaging apparatus and medical image processing apparatus |
JP6257948B2 (ja) * | 2012-08-07 | 2018-01-10 | 東芝メディカルシステムズ株式会社 | X線撮影システム |
WO2014104306A1 (ja) * | 2012-12-27 | 2014-07-03 | 株式会社東芝 | X線ct装置及び制御方法 |
US10278666B2 (en) * | 2014-06-13 | 2019-05-07 | Palodex Group Oy | Systems and methods of automated dose control in x-ray imaging |
CN104287768A (zh) * | 2014-09-30 | 2015-01-21 | 沈阳东软医疗***有限公司 | 一种ct扫描剂量控制方法及*** |
CN105246240B (zh) * | 2015-09-24 | 2017-06-27 | 南宁一举医疗电子设备股份有限公司 | 医用x‑射线机自动调节*** |
EP3250127B1 (en) | 2015-12-17 | 2018-10-31 | Koninklijke Philips N.V. | Method for generating contrast agent concentration map |
US10085698B2 (en) * | 2016-01-26 | 2018-10-02 | Genereal Electric Company | Methods and systems for automated tube current modulation |
CN106725570B (zh) * | 2016-12-30 | 2019-12-20 | 上海联影医疗科技有限公司 | 成像方法及*** |
JP6849521B2 (ja) * | 2017-05-01 | 2021-03-24 | キヤノン電子管デバイス株式会社 | X線システムおよびx線管検査方法 |
US10973489B2 (en) * | 2017-09-29 | 2021-04-13 | General Electric Company | CT imaging system and method using a task-based image quality metric to achieve a desired image quality |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0496739A (ja) * | 1990-08-10 | 1992-03-30 | Toshiba Corp | 画像表示装置 |
JP2000012280A (ja) * | 1998-06-24 | 2000-01-14 | Shimadzu Corp | X線シネ撮影装置 |
JP2001276040A (ja) * | 2000-04-03 | 2001-10-09 | Hitachi Medical Corp | X線ct装置 |
JP2003079611A (ja) * | 2001-07-04 | 2003-03-18 | Toshiba Corp | X線コンピュータ断層診断装置 |
JP2004033778A (ja) * | 2002-07-15 | 2004-02-05 | Ge Medical Systems Global Technology Co Llc | X線データを取得するためのシステム及び方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4054402B2 (ja) * | 1997-04-25 | 2008-02-27 | 株式会社東芝 | X線断層撮影装置 |
JP4309631B2 (ja) * | 2001-10-22 | 2009-08-05 | 株式会社東芝 | X線コンピュータトモグラフィ装置 |
JP4084951B2 (ja) * | 2002-03-26 | 2008-04-30 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 断層像撮影装置 |
JP2004073490A (ja) * | 2002-08-19 | 2004-03-11 | Canon Inc | X線撮影装置、x線撮影方法、及びコンピュータ読み取り可能な記憶媒体 |
JP4439202B2 (ja) | 2003-05-09 | 2010-03-24 | 株式会社東芝 | X線コンピュータ断層撮影装置及び画像ノイズシミュレーション装置 |
CN1933774A (zh) * | 2004-04-07 | 2007-03-21 | 柯尼卡美能达医疗印刷器材株式会社 | 放射线图像摄影装置、放射线图像摄影程序、以及信息存储媒体 |
-
2004
- 2004-04-26 JP JP2004129937A patent/JP4679068B2/ja not_active Expired - Lifetime
-
2005
- 2005-04-22 US US11/111,854 patent/US7106824B2/en active Active
- 2005-04-26 CN CNB2005100668199A patent/CN100381105C/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0496739A (ja) * | 1990-08-10 | 1992-03-30 | Toshiba Corp | 画像表示装置 |
JP2000012280A (ja) * | 1998-06-24 | 2000-01-14 | Shimadzu Corp | X線シネ撮影装置 |
JP2001276040A (ja) * | 2000-04-03 | 2001-10-09 | Hitachi Medical Corp | X線ct装置 |
JP2003079611A (ja) * | 2001-07-04 | 2003-03-18 | Toshiba Corp | X線コンピュータ断層診断装置 |
JP2004033778A (ja) * | 2002-07-15 | 2004-02-05 | Ge Medical Systems Global Technology Co Llc | X線データを取得するためのシステム及び方法 |
Also Published As
Publication number | Publication date |
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US20050249329A1 (en) | 2005-11-10 |
JP2005305026A (ja) | 2005-11-04 |
US7106824B2 (en) | 2006-09-12 |
CN1689523A (zh) | 2005-11-02 |
CN100381105C (zh) | 2008-04-16 |
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