IN2012DN00519A - - Google Patents

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Publication number
IN2012DN00519A
IN2012DN00519A IN519DEN2012A IN2012DN00519A IN 2012DN00519 A IN2012DN00519 A IN 2012DN00519A IN 519DEN2012 A IN519DEN2012 A IN 519DEN2012A IN 2012DN00519 A IN2012DN00519 A IN 2012DN00519A
Authority
IN
India
Prior art keywords
contrast
index
imaging system
methods
radiographic imaging
Prior art date
Application number
Inventor
David P Rohler
Steven H Izen
Thomas L Toth
Arjun K Maniyedath
Thomas E Dechant
Original Assignee
David P Rohler
Steven H Izen
Thomas L Toth
Arjun K Maniyedath
Thomas E Dechant
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 David P Rohler, Steven H Izen, Thomas L Toth, Arjun K Maniyedath, Thomas E Dechant filed Critical David P Rohler
Publication of IN2012DN00519A publication Critical patent/IN2012DN00519A/en

Links

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
    • A61B6/48—Diagnostic techniques
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • 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
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5252—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data removing objects from field of view, e.g. removing patient table from a CT image
    • 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
    • A61B6/545—Control of apparatus or devices for radiation diagnosis involving automatic set-up of acquisition parameters
    • 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
    • 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
    • A61B6/587—Alignment of source unit to detector unit
    • 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
    • A61B6/405—Source units specially adapted to modify characteristics of the beam during the data acquisition process

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)
  • Computer Vision & Pattern Recognition (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Systems and methods for determining an extended low contrast detectability performance function for an operating range for a core operating mode of a radiographic imaging system using actual reconstructed images characterize the contrast performance of a radiographic imaging system over its operating range and for any patient size based on the off-line calibration, uses ordered pairs of flux index and contrast index for each scanned object to provide a contrast index for each protocol for each contrast set, and uses the ordered pairs of flux index and contrast index to determine an extended low contrast detectability performance function for the operating range of a radiographic imaging system. Extended low contrast detectability performance data compilation and methods of clinical use, and low contrast phantom configurations and methods of calibration are also disclosed.
IN519DEN2012 2009-07-17 2010-07-16 IN2012DN00519A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US27115009P 2009-07-17 2009-07-17
US27895409P 2009-10-14 2009-10-14
PCT/US2010/002006 WO2011008296A1 (en) 2009-07-17 2010-07-16 Extended low contrast detectability for radiographic imaging systems

Publications (1)

Publication Number Publication Date
IN2012DN00519A true IN2012DN00519A (en) 2015-08-21

Family

ID=43449653

Family Applications (1)

Application Number Title Priority Date Filing Date
IN519DEN2012 IN2012DN00519A (en) 2009-07-17 2010-07-16

Country Status (8)

Country Link
US (1) US8891849B2 (en)
EP (1) EP2454634A4 (en)
JP (2) JP5657658B2 (en)
CN (1) CN102498438B (en)
CA (1) CA2768296C (en)
IL (1) IL217566A (en)
IN (1) IN2012DN00519A (en)
WO (1) WO2011008296A1 (en)

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US20140072108A1 (en) * 2010-07-16 2014-03-13 David P. Rohler Methods and apparatus for extended low contrast detectability for radiographic imaging systems
WO2013049818A1 (en) * 2011-09-30 2013-04-04 Cincinnati Children's Hospital Medical Center Method for consistent and verifiable optimization of computed tomography (ct) radiation dose
CN102631211B (en) * 2012-04-13 2013-07-24 鄢铃 CR/DR (Computed Radiography/Direct Radiography) comprehensive detection die body
JP5844296B2 (en) * 2012-06-11 2016-01-13 富士フイルム株式会社 Radiation image processing apparatus and method
JP6218334B2 (en) * 2012-11-30 2017-10-25 株式会社日立製作所 X-ray CT apparatus and tomographic imaging method thereof
WO2014116926A1 (en) * 2013-01-24 2014-07-31 The Research Foundation For The State University Of New York Real-time national radiation dose database and monitoring radiation dosages using this database
WO2014165611A1 (en) * 2013-04-02 2014-10-09 The Regents Of The University Of California Thermoplastic 3-d phantom
EP2984632B1 (en) * 2013-04-10 2020-10-07 Koninklijke Philips N.V. Image quality index and/or imaging parameter recommendation based thereon
WO2015020981A2 (en) 2013-08-05 2015-02-12 Cedars-Sinai Medical Center Systems and methods for determining radiation dose in computed tomography scans
JP6395504B2 (en) * 2014-08-20 2018-09-26 キヤノン株式会社 Radiation imaging apparatus evaluation method and phantom used in the evaluation method
KR102393294B1 (en) * 2014-09-26 2022-05-03 삼성전자주식회사 Medical imaging devices and controlling method thereof
US9619889B2 (en) * 2014-10-21 2017-04-11 General Electric Company Methods and systems for normalizing contrast across multiple acquisitions
US9848847B2 (en) * 2015-04-07 2017-12-26 Toshiba Medical Systems Corporation Using detectability index to determine X-ray tube current
US9895130B2 (en) * 2015-11-19 2018-02-20 General Electric Company Water equivalent diameter determination from scout images
US10492755B2 (en) * 2016-07-13 2019-12-03 Carestream Health, Inc. Calibration phantom comprising a reflectance calibration target and a plurality of radio-opaque markers
WO2018118844A1 (en) * 2016-12-20 2018-06-28 Mayo Foundation For Medical Education And Research System and method for correcting imaging system measurement bias from non-stationary noise in model observers
JP6125126B1 (en) * 2017-01-18 2017-05-10 典人 畠山 X-ray imaging condition correction method, program, and X-ray system
EP3421086B1 (en) * 2017-06-28 2020-01-15 OptiNav Sp. z o.o. Determination of geometrical information about a medical treatment arrangement comprising a rotatable treatment radiation source unit
EP3311744B1 (en) * 2017-07-12 2020-02-26 Siemens Healthcare GmbH Spatially resolved wed detection in head-foot direction
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
US10426424B2 (en) 2017-11-21 2019-10-01 General Electric Company System and method for generating and performing imaging protocol simulations
WO2021212309A1 (en) * 2020-04-21 2021-10-28 中国原子能科学研究院 METHOD FOR CHARACTERIZING TRANSMISSION SOURCE ATTRIBUTE FEATURES OF SEGMENTED γ SCANNING MEASUREMENT SYSTEM
US12471876B2 (en) * 2022-04-04 2025-11-18 Modus Medical Devices Inc. Deformable image registration phantom comprising a housing, an outer cylinder, a parallel eccentric inner cylinder rotatably mounted within the outer cylinder, a ball and socket mount, and a target mounted to the housing
CN119110738A (en) * 2022-04-04 2024-12-10 莫杜思医疗设备有限公司 Deformable Image Registration Model
CN116269466B (en) * 2023-05-10 2023-08-18 吉林大学 A Calculation Method for Automatic Detection of CT Low Contrast Detectability

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US6222907B1 (en) * 1999-07-12 2001-04-24 General Electric Company Image quality optimization using an X-ray model based optimization
JP5162065B2 (en) * 2001-07-09 2013-03-13 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-ray CT system
JP4393090B2 (en) * 2002-07-19 2010-01-06 東芝医用システムエンジニアリング株式会社 X-ray computed tomography system
US6829323B2 (en) * 2002-07-29 2004-12-07 Ge Medical Systems Global Technology Company, Llc Method and system for low dose image simulation for imaging systems
US6990171B2 (en) * 2003-10-27 2006-01-24 General Electric Company System and method of determining a user-defined region-of-interest of an imaging subject for x-ray flux management control
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JP2009090014A (en) * 2007-10-11 2009-04-30 Ibaraki Prefecture Phantom for evaluating disease visualization ability of X-ray CT apparatus and method for evaluating disease visualization ability of X-ray CT apparatus using the same
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Also Published As

Publication number Publication date
CN102498438B (en) 2014-11-26
CA2768296C (en) 2018-08-07
IL217566A (en) 2016-06-30
JP5834129B2 (en) 2015-12-16
US20120230576A1 (en) 2012-09-13
CA2768296A1 (en) 2011-01-20
JP2012533337A (en) 2012-12-27
WO2011008296A1 (en) 2011-01-20
EP2454634A4 (en) 2014-03-12
CN102498438A (en) 2012-06-13
JP5657658B2 (en) 2015-01-21
EP2454634A1 (en) 2012-05-23
US8891849B2 (en) 2014-11-18
JP2015061642A (en) 2015-04-02
IL217566A0 (en) 2012-02-29

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