JP4746890B2 - 放射線イメージング用の線管電流変調プロファイルを決定する方法及び装置 - Google Patents

放射線イメージング用の線管電流変調プロファイルを決定する方法及び装置 Download PDF

Info

Publication number
JP4746890B2
JP4746890B2 JP2005041452A JP2005041452A JP4746890B2 JP 4746890 B2 JP4746890 B2 JP 4746890B2 JP 2005041452 A JP2005041452 A JP 2005041452A JP 2005041452 A JP2005041452 A JP 2005041452A JP 4746890 B2 JP4746890 B2 JP 4746890B2
Authority
JP
Japan
Prior art keywords
modulation
tube current
waveform
subject
current modulation
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.)
Expired - Fee Related
Application number
JP2005041452A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005230547A (ja
JP2005230547A5 (enExample
Inventor
トマス・エル・トス
スティーブン・ジェイ・ウォロシェック
ジョナサン・アール・シュミット
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.)
GE Medical Systems Global Technology Co LLC
Original Assignee
GE Medical Systems Global Technology Co LLC
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 GE Medical Systems Global Technology Co LLC filed Critical GE Medical Systems Global Technology Co LLC
Publication of JP2005230547A publication Critical patent/JP2005230547A/ja
Publication of JP2005230547A5 publication Critical patent/JP2005230547A5/ja
Application granted granted Critical
Publication of JP4746890B2 publication Critical patent/JP4746890B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
    • A61B6/4085—Cone-beams
    • 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
    • A61B6/488—Diagnostic techniques involving pre-scan acquisition
    • 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
    • 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
    • A61B6/544—Control of apparatus or devices for radiation diagnosis involving control of exposure dependent on patient size
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
JP2005041452A 2004-02-19 2005-02-18 放射線イメージング用の線管電流変調プロファイルを決定する方法及び装置 Expired - Fee Related JP4746890B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/782,485 2004-02-19
US10/782,485 US6990172B2 (en) 2004-02-19 2004-02-19 Method and apparatus to determine tube current modulation profile for radiographic imaging

Publications (3)

Publication Number Publication Date
JP2005230547A JP2005230547A (ja) 2005-09-02
JP2005230547A5 JP2005230547A5 (enExample) 2008-04-03
JP4746890B2 true JP4746890B2 (ja) 2011-08-10

Family

ID=34861033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005041452A Expired - Fee Related JP4746890B2 (ja) 2004-02-19 2005-02-18 放射線イメージング用の線管電流変調プロファイルを決定する方法及び装置

Country Status (5)

Country Link
US (1) US6990172B2 (enExample)
JP (1) JP4746890B2 (enExample)
CN (1) CN100500094C (enExample)
DE (1) DE102005007190A1 (enExample)
NL (1) NL1028294C2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11388807B2 (en) 2020-01-29 2022-07-12 Canon Medical Systems Corporation X-ray CT apparatus, X-ray high voltage apparatus, and X-ray control method

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8275091B2 (en) 2002-07-23 2012-09-25 Rapiscan Systems, Inc. Compact mobile cargo scanning system
US7963695B2 (en) 2002-07-23 2011-06-21 Rapiscan Systems, Inc. Rotatable boom cargo scanning system
US8837669B2 (en) 2003-04-25 2014-09-16 Rapiscan Systems, Inc. X-ray scanning system
US8223919B2 (en) 2003-04-25 2012-07-17 Rapiscan Systems, Inc. X-ray tomographic inspection systems for the identification of specific target items
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
US9113839B2 (en) 2003-04-25 2015-08-25 Rapiscon Systems, Inc. X-ray inspection system and method
US8451974B2 (en) 2003-04-25 2013-05-28 Rapiscan Systems, Inc. X-ray tomographic inspection system for the identification of specific target items
US8804899B2 (en) * 2003-04-25 2014-08-12 Rapiscan Systems, Inc. Imaging, data acquisition, data transmission, and data distribution methods and systems for high data rate tomographic X-ray scanners
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
US7949101B2 (en) 2005-12-16 2011-05-24 Rapiscan Systems, Inc. X-ray scanners and X-ray sources therefor
GB0309385D0 (en) 2003-04-25 2003-06-04 Cxr Ltd X-ray monitoring
GB0309379D0 (en) 2003-04-25 2003-06-04 Cxr Ltd X-ray scanning
US6928141B2 (en) 2003-06-20 2005-08-09 Rapiscan, Inc. Relocatable X-ray imaging system and method for inspecting commercial vehicles and cargo containers
JP4739738B2 (ja) * 2004-12-01 2011-08-03 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 線量評価方法およびｘ線ｃｔ装置
JP5001142B2 (ja) * 2005-02-25 2012-08-15 株式会社日立メディコ Ｘ線ｃｔ装置
JP4170305B2 (ja) 2005-04-05 2008-10-22 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 放射線撮影装置
US7471764B2 (en) 2005-04-15 2008-12-30 Rapiscan Security Products, Inc. X-ray imaging system having improved weather resistance
US20070147579A1 (en) * 2005-12-23 2007-06-28 De Man Bruno K B Method and system for radiographic imaging with organ-based radiation profile prescription
EP1973469A4 (en) * 2006-01-20 2009-12-30 Wisconsin Alumni Res Found METHOD AND APPARATUS FOR LOW-RADIATION COMPUTER-ASSISTED TOMOGRAPHY
GB0803641D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
GB0803644D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
GB0809110D0 (en) 2008-05-20 2008-06-25 Rapiscan Security Products Inc Gantry scanner systems
JP5479069B2 (ja) 2009-12-17 2014-04-23 株式会社東芝 Ｘ線ｃｔ装置及びｘ線ｃｔ装置の制御方法
JP5985836B2 (ja) * 2011-03-03 2016-09-06 ゼネラル・エレクトリック・カンパニイ イメージング・システムによって放出される放射線量を減少させる方法
US9218933B2 (en) 2011-06-09 2015-12-22 Rapidscan Systems, Inc. Low-dose radiographic imaging system
US9326738B2 (en) 2011-06-30 2016-05-03 General Electric Company Method and system for reduced dose X-ray imaging
BR112014013226B1 (pt) 2013-01-31 2021-08-24 Rapiscan Systems, Inc Sistema de inspeção de segurança portátil e método de implantação do mesmo
CN103315762B (zh) 2013-06-26 2016-06-01 沈阳东软医疗系统有限公司 一种计算机断层摄影成像系统中的电流调制方法和装置
US9836859B2 (en) * 2015-01-09 2017-12-05 Toshiba Medical Systems Corporation Wide X-ray spectrum photon counting computed tomography
US10085698B2 (en) * 2016-01-26 2018-10-02 Genereal Electric Company Methods and systems for automated tube current modulation
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
EP3597106A1 (en) * 2018-07-19 2020-01-22 Koninklijke Philips N.V. Ct scan parameter optimization
US12181422B2 (en) 2019-09-16 2024-12-31 Rapiscan Holdings, Inc. Probabilistic image analysis
CN117279572A (zh) * 2021-05-05 2023-12-22 皇家飞利浦有限公司 用于处理和可视化医学成像设备中的管电流调制的系统和方法
CN116403875B (zh) * 2023-06-06 2023-08-08 有方（合肥）医疗科技有限公司 X射线球管的管电流快速调节方法及装置、ct设备

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450462A (en) * 1993-11-19 1995-09-12 General Electric Company Modulation of x-ray tube current during CT scanning with modulation limit
US5379333A (en) * 1993-11-19 1995-01-03 General Electric Company Variable dose application by modulation of x-ray tube current during CT scanning
JP3662352B2 (ja) * 1996-07-19 2005-06-22 ジーイー横河メディカルシステム株式会社 Ｘ線ｃｔ装置
US5696807A (en) * 1996-09-05 1997-12-09 General Electric Company Methods and apparatus for modulating x-ray tube current
US5764721A (en) * 1997-01-08 1998-06-09 Southwest Research Institute Method for obtaining optimized computed tomography images from a body of high length-to-width ratio using computer aided design information for the body
US5867555A (en) * 1997-03-04 1999-02-02 Siemens Aktiengesellschaft Adaptive dose modulation during CT scanning
US5822393A (en) * 1997-04-01 1998-10-13 Siemens Aktiengesellschaft Method for adaptively modulating the power level of an x-ray tube of a computer tomography (CT) system
JP3244458B2 (ja) 1997-09-30 2002-01-07 ジーイー横河メディカルシステム株式会社 Ｘ線断層撮影装置
US6115448A (en) * 1997-11-26 2000-09-05 General Electric Company Photodiode array for a scalable multislice scanning computed tomography system
JP4159188B2 (ja) * 1999-07-30 2008-10-01 ジーイー横河メディカルシステム株式会社 管電流調節方法および装置並びにｘ線ｃｔ装置
JP2002253546A (ja) 2001-02-20 2002-09-10 Ge Medical Systems Global Technology Co Llc アーチファクト評価方法、アーチファクト評価プログラムおよびｘ線ｃｔ装置
JP4532005B2 (ja) * 2001-03-09 2010-08-25 株式会社日立メディコ Ｘ線ｃｔ装置及びその画像表示方法
US7092214B2 (en) 2001-08-28 2006-08-15 Sae Magnetics (H.K.) Ltd. Wireless suspension design to accommodate multiple drive designs
JP3864106B2 (ja) * 2002-03-27 2006-12-27 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 透過ｘ線データ獲得装置およびｘ線断層像撮影装置
FR2849983A1 (fr) * 2003-01-10 2004-07-16 Ge Med Sys Global Tech Co Llc Procede de reglage du debit de rayonnement d'un tube a rayons x

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11388807B2 (en) 2020-01-29 2022-07-12 Canon Medical Systems Corporation X-ray CT apparatus, X-ray high voltage apparatus, and X-ray control method

Also Published As

Publication number Publication date
NL1028294A1 (nl) 2005-08-22
NL1028294C2 (nl) 2006-11-29
JP2005230547A (ja) 2005-09-02
CN1657008A (zh) 2005-08-24
US20050185759A1 (en) 2005-08-25
DE102005007190A1 (de) 2005-09-15
CN100500094C (zh) 2009-06-17
US6990172B2 (en) 2006-01-24

Similar Documents

Publication Publication Date Title
JP4746890B2 (ja) 放射線イメージング用の線管電流変調プロファイルを決定する方法及び装置
US8199883B2 (en) X-ray flux management device
JP5268499B2 (ja) 計算機式断層写真法（ｃｔ）イメージング・システム
US6647095B2 (en) Method and apparatus for optimizing dosage to scan subject
US7046756B2 (en) Rotatable filter for a pre-subject CT collimator having multiple filtering profiles
US7088799B2 (en) Method and apparatus for presenting multiple pre-subject filtering profiles during CT data acquisition
US7424090B2 (en) Apparatus for acquisition of CT data with penumbra attenuation calibration
JP4558446B2 (ja) 走査されることになる対象物に対する調整されたエネルギビームを用いた放射線画像イメージングの方法及び装置
JP5172088B2 (ja) Ｃｔデータ補正の方法及びシステム
JP4512319B2 (ja) 電圧変調によるｃｔイメージング方法及び装置
US6990170B2 (en) X-ray computed tomographic imaging apparatus
RU2444291C2 (ru) Корректировка рассеяния в системе формирования изображения с множеством трубок
JP5191908B2 (ja) Ｘ線ｃｔ装置
US20110116700A1 (en) Adaptive gradient weighting technique for detector bad cell correction
JP2009125250A (ja) Ｘ線ｃｔ装置
US7088800B2 (en) X-ray CT system and beam-hardening post-processing method
JP2002200072A (ja) Ｘ線ｃｔスキャナ
US20060285634A1 (en) Systems and methods for adjusting noise in a medical imaging system
CN1231182C (zh) 用于借助优化的数据采集优化ct图象质量的方法和装置
US6687327B2 (en) System and method of medical imaging having task and/or patient size dependent processing
JP2001145622A (ja) Ｘ線断層撮影方法及び装置
JPH1199147A (ja) Ｘ線ｃｔ装置
JP2003079612A (ja) リファレンス補正用データ生成方法及びｘ線ｃｔ装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080215

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080215

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100708

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100713

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100902

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20100902

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20100902

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101207

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110210

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110426

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110516

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140520

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4746890

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees