EP1258176A1 - Procede et dispositif concernant un appareil d'imagerie aux rayons x - Google Patents

Procede et dispositif concernant un appareil d'imagerie aux rayons x

Info

Publication number
EP1258176A1
EP1258176A1 EP01942852A EP01942852A EP1258176A1 EP 1258176 A1 EP1258176 A1 EP 1258176A1 EP 01942852 A EP01942852 A EP 01942852A EP 01942852 A EP01942852 A EP 01942852A EP 1258176 A1 EP1258176 A1 EP 1258176A1
Authority
EP
European Patent Office
Prior art keywords
adjusting
ray
arrangement
pedals
control unit
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Withdrawn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
EP01942852A
Other languages
German (de)
English (en)
Inventor
Rolf Eriksson
Mats Danielsson
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.)
Philips Digital Mammography Sweden AB
Original Assignee
Mamea Imaging AB
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
Priority claimed from SE0000197A external-priority patent/SE522570C2/sv
Application filed by Mamea Imaging AB filed Critical Mamea Imaging AB
Publication of EP1258176A1 publication Critical patent/EP1258176A1/fr
Withdrawn legal-status Critical Current

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
    • A61B6/50—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
    • A61B6/06—Diaphragms
    • 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
    • A61B6/505—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 bone
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a method and an arrangement for adjusting a number of settings in an x-ray imaging apparatus for recurrent mammography examinations, said apparatus comp ⁇ sing at least one x-ray source, a collimator arrangement and compression pedals for positioning and compressing the breast of a patient to be examined
  • the arrangement comp ⁇ ses control units for adjusting said number of settings of said x-ray imaging apparatus based on an identity of said person to be examined and data stored in a database, said data including a set of setting-data from at least one recent x-ray examination of said patient, a mam control unit communicating with a control unit for adjusting characte ⁇ stics of x-ray radiations from said x-ray source, a control unit for adjusting the position of said x-ray source, and an identity input device
  • the adjustment of an x-ray imaging apparatus and specially a mammogrphic imaging apparatus is normally a time consuming and labou ⁇ ous work, specially for a nurse or the operator responsible of the per- adjustment
  • the settings include the physical features of the apparatus such as the height of the x-ray source and the breast compression arrangement, respectively, with respect to the physical appearance of the patient, and the x-ray intensity and spectrum, e g through adjustment of the amount of power to the radiation source, the current between the anode and cathode of the x-ray tube and filtration of the x-rays
  • US 5,349,625 desc ⁇ bes an x-ray diagnostics installation for pe ⁇ pheral angiography examinations includes a control unit having an a ⁇ thmetic unit that, on the basis of subject- related data supplied thereto, effects a pre-setting of the elect ⁇ cal parameters of the installation required for every exposure, plus the step length and the number of steps of the relative adjustment of the exposure unit and the patient support relative to one another, as well as the required diaphragm setting.
  • the pre-setting stress on the patient is reduced, and since the overall time per examination is also reduced, patient throughput can be increased.
  • a patient positioning device in a medical panorama X-ray photographing apparatus in which after data of the relative position of the subject to the X-ray photographing apparatus supplied from a sensor is compared with data of the relative position of a tomographic zone to the X-ray photographing apparatus thus to produce compa ⁇ son data which is in turn transmitted to a d ⁇ ve circuit, a tomograph forming assembly and/or the subject is moved from coinciding with each other
  • the device further includes a compa ⁇ ng a ⁇ thmetic circuit in which the detected position data of the subject and position data of the tomographic zone are a ⁇ thmetically compared in order to improve operatabi ty and positioning accuracy
  • the device furthermore includes a sensor, which is adjustable for angular and vertical setting with the use of sensing position changing means in order to improve adaptability to individualities of the subject.
  • What is needed is an arrangement that allows an x-ray imaging apparatus, specially an apparatus for mammographic examination, to automatically assume settings specific for a certain person to be examined.
  • Advantages with the arrangement according to the present invention are that the burden on the operator and the patient reduces and the number of persons which can be examined and the examination flow increase as the pre-adjustment time reduces.
  • the initially mentioned arrangement further comp ⁇ ses a device for adjusting collimator slots widths based on information ret ⁇ eved from said database and/or a position of said pedals Moreover, the arrangement comp ⁇ ses means to detect the positions of said pedals, a compression sensor for sensing a pressure exerted by said pedals onto said breast and adjusting said pressure and position sensors for positioning said x-ray source
  • the identity input device is any one of a card reading device, a fmger p ⁇ nt sensor, a pin-code input device or a keyboard
  • the invention also relates to a method in initially mentioned arrangement, which is characte ⁇ sed by the steps of claiming an identity of said patient, upon receiving said identity ret ⁇ eving a set of setting data from at least one last x-ray examination of said person and/or a position of said pedals, and adjusting collimator slots' widths based on said information
  • a substantially manual adjustment is earned out and results of said substantially manual adjustment are registered for later examinations
  • Fig 1 is a schematic diagram illustrating an x-ray imaging according to the present invention
  • Fig 1 is a schematic diagram of a system employing an arrangement according to the invention, specially for mammography examming apparatus
  • the essential parts of the system 10 comp ⁇ se a radiation source 11, collimator means 12 and a pedal pares, including first and second compression pedals 13a and 13b, respectively
  • the female breast 14 is positioned between the compression pedals 13a and 13b
  • the upper compression pedal 13a is at least partly transparent to the x-ray radiation while lower pedal 13b can contain a film or a detector assembly (not shown).
  • the arrangement according to the invention mamly comp ⁇ ses a main control unit 15 and connected to it sub-control units 16-19.
  • the sub-control unit 16 is an x-ray source controller and for instance controls the x-ray intensity by controlling power level to the tube and the current between the cathode and anode of the x-ray tube
  • the sub-controller 17 is a step motor or the like for relocating the x-ray source 11 ho ⁇ zontal and/or vertical directions with respect to the breast's 14 position.
  • the sub-controller denoted 18 adjusts the collimator 12 features, e.g the width of the collimator slots.
  • the sub-controller 19 is a device, such as a step motor which displaces the pedals 13a, 13b relative each other and controls the pressure exerted onto the breast 14. It is also possible to move the entire apparatus including the x-ray source and the pedals 13a/13b vertically to adopt it to the patient's height.
  • collimator slit's width can be adjusted with regard to the patient data and/or the compressed breast thickness (distance between the pedals) to adjust the radiation dose. Hence, there is no need to adjust the slits' widths (in multi slits colhmators) under the examining.
  • the main control unit 15 also includes or communicates with an input device 20 and a data storage unit (database) 21.
  • the function of the control unit includes controlling the sub-control units based on the input from the input device and the storage unit.
  • the input device may be any of a card reading device, a biomet ⁇ c sensor, a PIN code input device, keyboard etc., well known for a skilled person.
  • the storage unit may be any of a memory unit, hard disk, CD-ROM etc., used for sto ⁇ ng data.
  • the storage unit may be implemented as a part of a Local Area Network (LAN), Wide Area Network (WAN), Internet, Intranet etc., with which the mam control unit communicates
  • the ma control unit has a computer unit structure of known type and mamly comp ⁇ ses a processing unit (not shown), memory and interfaces for communication with the other units or devices
  • the invention is most suitable for recurrent x-ray examinations, e.g mammographic examinations and specially for mass screening situations, as the settings of the system are depending on the patient's physical appearance, such as length, breast thickness etc.
  • the invention may also be used for bone densitometry examination. Following non limiting example simplifies the underrating of the invention:
  • the height of the pedals 13a, 13b, and the x-ray source is adjusted in a known way with respect to the height of the patient and the breast of the person is placed in between the compression pedals 13a, 13b exercising an amount of pressure on the breast.
  • the height of the pedals and the source are registered automatically by means of sensors ( or manually) and stored in a database 21 with relation to the patient identity.
  • the intensity, and exposure area and time of the x-ray beam is adjusted by adjusting the power and the current to the tube and possibly by adjusting the collimator 12. All settings are stored in the above-mentioned database for later use Sensors are provided for reading the setting values, however, a manual reading and data ente ⁇ ng may occur
  • the system is activated by ente ⁇ ng her identity through the input device 20, which can be an identity number, a social secu ⁇ ty number, a f ger p ⁇ nt or any other unique identifying code.
  • the main control unit Based on the identity of the person to be examined, and preferably after an identity check, the main control unit ret ⁇ eves the height, pedal pressure, x-ray intensity, focussing and exposure time and other relevant data from the database 21.
  • the mam control unit controls the sub-control units 16-19 with respect to the data ret ⁇ eved from the database
  • the step motor 17 positions the x-ray source 11 in a correct height
  • the pedals 13a and 13b are brought into correct height and the operator helps placing the breast of the patient between the pedals, which then brought together by the step motor 19 to compress the breast into a substantially flat body for best contrast.
  • the x-ray source is controlled based on the breast thickness to radiate with correct power. If there is a need for readjustment of the settings, the new settings are stored.
  • the system may be expanded by sto ⁇ ng the x-ray images in digital form, which for example can be used to inspect tumour changes
  • the invention is not limited the shown embodiments but can be va ⁇ ed in a number of ways without departing from the scope of the appended claims and the arrangement and the method can be implemented in va ⁇ ous ways depending on application, functional units, needs and requirements etc.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Toxicology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un dispositif pour régler un certain nombre de paramètres dans un appareil (10) d'imagerie aux rayons X pour examens mammographiques récurrents. Ledit appareil comprend au moins une source (11) de rayons X, un collimateur (12) et des pédales de compression (13a, 13b) pour positionner et comprimer le buste (14) de la patiente à examiner. Ledit dispositif comprend : des unités de commande (16-19) pour régler ledit nombre de paramètres dudit appareil d'imagerie aux rayons X, basés sur l'identité de la personne à examiner, ainsi que des données stockées dans une base de données (21), ces données comprenant un ensemble de données paramétriques issues d'au moins un examen aux rayons X récent de ladite patiente ; une unité de commande principale (15) communicant avec une unité de commande (16) pour régler les caractéristiques du rayonnement des rayons X de ladite source de rayons X (11) ; une unité (17) de commande pour régler la position de ladite source de rayons X (11) ; une unité d'entrée (20) d'identité. L'invention comprend en outre un dispositif (19) pour régler la largeur des fentes du collimateur, basée sur les informations extraites de ladite base de données et/ou une position desdites pédales.
EP01942852A 2000-01-24 2001-01-24 Procede et dispositif concernant un appareil d'imagerie aux rayons x Withdrawn EP1258176A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US17883900P 2000-01-24 2000-01-24
US178839P 2000-01-24
SE0000197 2000-01-24
SE0000197A SE522570C2 (sv) 2000-01-24 2000-01-24 Metod och anordning för justering av inställningar i en röntgenavbildningsapparat
PCT/SE2001/000138 WO2001054463A1 (fr) 2000-01-24 2001-01-24 Procede et dispositif concernant un appareil d'imagerie aux rayons x

Publications (1)

Publication Number Publication Date
EP1258176A1 true EP1258176A1 (fr) 2002-11-20

Family

ID=26654960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01942852A Withdrawn EP1258176A1 (fr) 2000-01-24 2001-01-24 Procede et dispositif concernant un appareil d'imagerie aux rayons x

Country Status (4)

Country Link
EP (1) EP1258176A1 (fr)
JP (1) JP2003520115A (fr)
AU (1) AU2001229016A1 (fr)
WO (1) WO2001054463A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI113897B (fi) * 2001-11-23 2004-06-30 Planmed Oy Automaattivalotusmenetelmä ja automaattivalotusjärjestelmä
JP2004173924A (ja) * 2002-11-27 2004-06-24 Ge Medical Systems Global Technology Co Llc Ｘ線制御方法およびｘ線画像撮影装置
JP4597936B2 (ja) * 2005-10-06 2010-12-15 富士フイルム株式会社 乳房画像撮影装置
JP4837507B2 (ja) 2005-10-06 2011-12-14 富士フイルム株式会社 乳房画像撮影装置
JP4600942B2 (ja) * 2005-10-06 2010-12-22 富士フイルム株式会社 乳房画像撮影装置
JP4494355B2 (ja) * 2006-03-07 2010-06-30 富士フイルム株式会社 放射線画像撮影装置及び放射線画像撮影装置の制御方法
WO2008044439A1 (fr) * 2006-10-06 2008-04-17 Konica Minolta Medical & Graphic, Inc. Appareil pour déterminer la teneur en sel d'un os
JP4874777B2 (ja) * 2006-12-11 2012-02-15 株式会社東芝 デジタルマンモグラフィ装置及びプログラム
JP5172301B2 (ja) * 2007-12-04 2013-03-27 株式会社東芝 乳房ｘ線撮影装置および乳房圧迫プログラム
JP5424956B2 (ja) * 2009-03-31 2014-02-26 富士フイルム株式会社 乳房放射線画像撮影装置
JP5837090B2 (ja) * 2010-12-13 2015-12-24 フィリップス デジタル マンモグラフィー スウェーデン アーベー コリメータ装置及び方法
KR102083821B1 (ko) * 2012-03-29 2020-03-03 제네럴 일렉트릭 컴퍼니 맘모그래피 장치 및 이를 이용한 피검체 촬영 방법
US10856831B2 (en) 2013-03-29 2020-12-08 General Electric Company Mammography device and method of photographing object to be inspected using the same
KR101504102B1 (ko) 2013-04-23 2015-03-19 계명대학교 산학협력단 유방의 탄성도 분포 정보 및 엑스선 영상의 획득을 위한 유방촬영용 영상진단기기
US11883206B2 (en) * 2019-07-29 2024-01-30 Hologic, Inc. Personalized breast imaging system
AU2020353680A1 (en) 2019-09-27 2022-02-17 Hologic, Inc. AI system for predicting reading time and reading complexity for reviewing 2D/3D breast images

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DE3808009C2 (de) * 1987-03-13 1990-11-29 Kabushiki Kaisha Morita Seisakusho, Kyoto, Jp Vorrichtung zum positionieren des patienten bei einer medizinischen panorama-roentgenaufnahmeeinrichtung
DE4210120C1 (en) * 1992-03-27 1993-08-05 Siemens Ag, 8000 Muenchen, De X=ray appts. for peripheral angiography - calculates relative positioning of appts. and patient support using data derived from patient

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Also Published As

Publication number Publication date
WO2001054463A1 (fr) 2001-07-26
AU2001229016A1 (en) 2001-07-31
JP2003520115A (ja) 2003-07-02

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