GB2278526A - Computer assisted pulsed digital angiography - Google Patents

Computer assisted pulsed digital angiography

Info

Publication number
GB2278526A
GB2278526A GB9415914A GB9415914A GB2278526A GB 2278526 A GB2278526 A GB 2278526A GB 9415914 A GB9415914 A GB 9415914A GB 9415914 A GB9415914 A GB 9415914A GB 2278526 A GB2278526 A GB 2278526A
Authority
GB
United Kingdom
Prior art keywords
blood vessel
ray images
indication
bolus
sequence
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.)
Withdrawn
Application number
GB9415914A
Other versions
GB9415914D0 (en
Inventor
Simon Richard Dodds
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.)
University of Southampton
Original Assignee
University of Southampton
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 University of Southampton filed Critical University of Southampton
Publication of GB9415914D0 publication Critical patent/GB9415914D0/en
Publication of GB2278526A publication Critical patent/GB2278526A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. 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 for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/504—Clinical applications involving diagnosis of blood vessels, e.g. by angiography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/507—Clinical applications involving determination of haemodynamic parameters, e.g. perfusion CT

Landscapes

  • 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)
  • Vascular Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Blood flows through a blood vessel is monitored by angiography. A bolus of radio-opaque dye is injected by means of a motorised syringe (16) into the blood vessel over a period less than one cardiac cycle in response to the output of an ECG monitor (14). The dye bolus is injected at a predetermined point in the cardiac cycle. A sequence of X-ray images are then formed by X-ray apparatus (10) incorporating an image intensifier at predetermined intervals to provide an indication of movement of the bolus through the vessel and its branches. Preferably, the sequence of X-ray images are converted into digital format, the set of digital values representing each of the X-ray images being subtracted by means of computer (12) from those representing the next successive X-ray image in the sequence. Any negative digital values are converted to digital zeros. In order to provide an indication of volume flow through the blood vessel, the density of radio-opaque dye within a predetermined notional area at least a part of which overlies the area occupied by the blood vessel in the X-ray images is calculated for each set of digital values generated by the subtraction. The calculated densities can then be used to provide an indication of volume flow. <IMAGE>
GB9415914A 1992-02-14 1993-02-12 Computer assisted pulsed digital angiography Withdrawn GB2278526A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9203132A GB9203132D0 (en) 1992-02-14 1992-02-14 Computer assisted dynamic digital angiography
PCT/GB1993/000308 WO1993015658A1 (en) 1992-02-14 1993-02-12 Computer assisted pulsed digital angiography

Publications (2)

Publication Number Publication Date
GB9415914D0 GB9415914D0 (en) 1994-09-28
GB2278526A true GB2278526A (en) 1994-11-30

Family

ID=10710379

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9203132A Pending GB9203132D0 (en) 1992-02-14 1992-02-14 Computer assisted dynamic digital angiography
GB9415914A Withdrawn GB2278526A (en) 1992-02-14 1993-02-12 Computer assisted pulsed digital angiography

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9203132A Pending GB9203132D0 (en) 1992-02-14 1992-02-14 Computer assisted dynamic digital angiography

Country Status (3)

Country Link
EP (1) EP0625885A1 (en)
GB (2) GB9203132D0 (en)
WO (1) WO1993015658A1 (en)

Families Citing this family (30)

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US6397098B1 (en) 1994-09-21 2002-05-28 Medrad, Inc. Data communication and control for medical imaging systems
SE9501265D0 (en) * 1995-04-05 1995-04-05 Mats Andersson Procedure and apparatus for X-ray equipment
US5882343A (en) * 1995-04-20 1999-03-16 Invasatec, Inc. Dual port syringe
US6099502A (en) * 1995-04-20 2000-08-08 Acist Medical Systems, Inc. Dual port syringe
US6656157B1 (en) 1995-04-20 2003-12-02 Acist Medical Systems, Inc. Infinitely refillable syringe
ES2205024T3 (en) * 1995-04-20 2004-05-01 Acist Medical Systems, Inc. ANGIOGRAPHIC INJECTOR.
US6221045B1 (en) 1995-04-20 2001-04-24 Acist Medical Systems, Inc. Angiographic injector system with automatic high/low pressure switching
US5594771A (en) * 1995-05-25 1997-01-14 Shimadzu Corporation Digital angiographic apparatus
CN1100515C (en) * 1995-05-30 2003-02-05 岛津制作所株式会社 Digital angiographic apparatus
US6626862B1 (en) 2000-04-04 2003-09-30 Acist Medical Systems, Inc. Fluid management and component detection system
FR2822048B1 (en) * 2001-03-19 2003-09-26 Ge Med Sys Global Tech Co Llc METHOD OF CARDIAC RADIOLOGICAL EXAMINATION IN CORONAROGRAPHY AND DEVICE FOR IMPLEMENTING SAME
US7065395B2 (en) 2001-03-19 2006-06-20 Ge Medical Systems Global Technology Company, Llc Method and apparatus for cardiac radiological examination in coronary angiography
JP2008520287A (en) 2004-11-16 2008-06-19 メドラッド インコーポレーテッド System and method for determining patient transfer function for drug infusion and modeling patient response
HUE038724T2 (en) 2004-11-24 2018-11-28 Bayer Healthcare Llc Devices and systems for fluid delivery
WO2007069166A2 (en) 2005-12-15 2007-06-21 Koninklijke Philips Electronics, N.V. A method for determining a degree of pulsatility in angiography
HUE040477T2 (en) 2006-12-29 2019-03-28 Bayer Healthcare Llc Patient-based parameter generation systems for medical injection procedures
CN103976736B (en) 2007-07-17 2017-01-11 拜耳医药保健有限责任公司 Devices and systems for determination of parameters for a procedure, for estimation of cardiopulmonary function and for fluid delivery
US9421330B2 (en) 2008-11-03 2016-08-23 Bayer Healthcare Llc Mitigation of contrast-induced nephropathy
KR20180015279A (en) 2010-06-24 2018-02-12 바이엘 헬쓰케어 엘엘씨 Modeling of pharmaceutical propagation and parameter generation for injection protocols
WO2013172811A1 (en) 2012-05-14 2013-11-21 Medrad, Inc. Systems and methods for determination of pharmaceutical fluid injection protocols based on x-ray tube voltage
US9555379B2 (en) 2013-03-13 2017-01-31 Bayer Healthcare Llc Fluid path set with turbulent mixing chamber, backflow compensator
US10898638B2 (en) 2016-03-03 2021-01-26 Bayer Healthcare Llc System and method for improved fluid delivery in multi-fluid injector systems
WO2019046299A1 (en) 2017-08-31 2019-03-07 Bayer Healthcare Llc Fluid path impedance assessment for improving fluid delivery performance
CN110869071B (en) 2017-08-31 2023-05-02 拜耳医药保健有限公司 Method of dynamic pressure control in a fluid injector system
CA3067625C (en) 2017-08-31 2024-04-30 Bayer Healthcare Llc Injector pressure calibration system and method
EP3675927B1 (en) 2017-08-31 2023-12-13 Bayer Healthcare LLC Fluid injector system volume compensation system and method
EP3675930B1 (en) 2017-08-31 2024-01-17 Bayer Healthcare LLC Method for drive member position and fluid injector system mechanical calibration
CN108245178A (en) * 2018-01-11 2018-07-06 苏州润迈德医疗科技有限公司 A kind of blood flowing speed computational methods based on X ray coronary angiography image
US11191503B2 (en) 2018-07-17 2021-12-07 International Business Machines Corporation Fluid-injector for a simultaneous anatomical and fluid dynamic analysis in coronary angiography
EP3884868A1 (en) * 2020-03-26 2021-09-29 Pie Medical Imaging BV Method and system for registering intra-object data with extra-object data

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082771A2 (en) * 1981-12-22 1983-06-29 Thomson-Csf Broadcast Inc. Method and apparatus for imaging a body
US4611340A (en) * 1983-05-20 1986-09-09 Kabushiki Kaisha Toshiba Apparatus for examining a biological object by using radiation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082771A2 (en) * 1981-12-22 1983-06-29 Thomson-Csf Broadcast Inc. Method and apparatus for imaging a body
US4611340A (en) * 1983-05-20 1986-09-09 Kabushiki Kaisha Toshiba Apparatus for examining a biological object by using radiation

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Biomedizinische Technik vol25 no3 March 1980 (Berlin) pages 58-62 *
Medical Physics vol16 no2 March 1989 (New York) pages 179-187 *
Schweizerische Technische Zeitschrift no51 22 December 1973 (Wabern) pages 1050-1055 *

Also Published As

Publication number Publication date
WO1993015658A1 (en) 1993-08-19
EP0625885A1 (en) 1994-11-30
GB9203132D0 (en) 1992-04-01
GB9415914D0 (en) 1994-09-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)