WO2014044540A1 - Verfahren zur planungsunterstützung und computertomographiegerät - Google Patents
Verfahren zur planungsunterstützung und computertomographiegerät Download PDFInfo
- Publication number
- WO2014044540A1 WO2014044540A1 PCT/EP2013/068338 EP2013068338W WO2014044540A1 WO 2014044540 A1 WO2014044540 A1 WO 2014044540A1 EP 2013068338 W EP2013068338 W EP 2013068338W WO 2014044540 A1 WO2014044540 A1 WO 2014044540A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- computed tomography
- information
- tomography device
- projection
- recording
- Prior art date
Links
- 238000002591 computed tomography Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001419 dependent effect Effects 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 2
- 239000003086 colorant Substances 0.000 description 3
- 238000011835 investigation Methods 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—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
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0492—Positioning of patients; Tiltable beds or the like using markers or indicia for aiding patient positioning
-
- 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
-
- 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
- A61B6/544—Control of apparatus or devices for radiation diagnosis involving control of exposure dependent on patient size
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
- G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
- G06T7/74—Determining position or orientation of objects or cameras using feature-based methods involving reference images or patches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B2090/364—Correlation of different images or relation of image positions in respect to the body
- A61B2090/366—Correlation of different images or relation of image positions in respect to the body using projection of images directly onto the body
-
- 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
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
Definitions
- the invention relates to a method for planning support in a computer tomography recording according to claim 1 and a computed tomography apparatus for performing such a method according to claim 8.
- Essential components of a computed tomography device are a round gantry with a recording system, in which gantry the examination object (for example the patient) is positioned by means of a patient couch, a system control for controlling the computed tomography device and at least one computing unit (for example a computer).
- the recording system which e.g. has a single or multi-line detector in fan geometry and an X-ray source, a plurality of slices are recorded at a plurality of projection angles around the examination subject and subsequently, by means of the arithmetic unit, e.g. reconstructed to an SD volume image, then reworked as needed.
- the examination object arranged on the patient couch is usually moved along the axis through the gantry of the computed tomography device along an axis which is given by the longitudinal direction of the positioning means.
- Projections recorded which are then a computing and control unit, such as a computer, made available.
- the projections are interpolated into an overview image similar to an X-ray superposition image.
- the topogram is often taken from the
- Scannable driving ranges are drawn here. These scan ranges are then plotted on the topogram as a box. In addition to the topogram, additional information about the dose distribution is displayed as a curve.
- the inventive method for planning support in a CT scan of an examination subject by means of a computed tomography device comprises the following steps:
- a 2D overview image a so-called topogram
- the topogram provides an overview of the patient and his anatomy.
- the recording system is not rotated, but moves the patient volume only in the axial direction, for example.
- An overlay image similar to a conventional X-ray image is obtained.
- the position-dependent information is understood to mean data that can be determined using the topogram (and, if required, additional information from the CT) and can apply to specific positions or areas of the examination subject.
- scanable ranges can be determined, which can be reached and recorded by the acquisition system of the CT, or the non-scannable edge regions can be determined.
- the position-dependent information is transmitted to a projection device, which may be part of the computed tomography device, and displayed by the projection device in the correct position on the surface of the examination subject.
- the position-correct representation directly on the surface of the examination subject, which is affected, thus very clearly shows a user the exact information, so that a false idea of the user of the actual arrangement is almost impossible. This can reduce the error rate during planning.
- the user or users are given the opportunity early on to influence the recordings, so that superfluous recordings can be prevented and the examination made safer for the patient. ⁇
- a computed tomography device comprising a rotatable gantry with a recording system for recording projection recordings from different projection directions, a patient couch for
- a system control for controlling the computed tomography device, a computing unit for processing and reconstruction of the projection photographs and a projection device for projection of a light image on a surface, wherein the system controller is adapted to obtain from an overview image of the examination object information to the Projection device forward and the projection device is arranged such that it projects the information in the correct position on the surface of the examination subject.
- the projection device is arranged on the gantry of the computed tomography device. In this way, a simple and unobstructed projection of a light image on the object to be examined is also possible with their arrangement within the gantry. In addition, registration between the projection device and the recording system of the CT is facilitated in this way.
- the projection device is formed by a light projector. Such a light projector is commercially available and usable with little effort for the computed tomography device.
- both multi-colored and monochrome projections can be created. Alternatively, e.g. one
- Laser projector or a holographic projector can be used.
- further data are used to determine the position-dependent information, for example, data on the geometry of the computed tomography device or its recording system, the recording parameters of the Topogram or planned 3D images, information about the patient or the dimensions of the patient bed.
- additional information of the computed tomography device is additionally displayed on the surface of the examination subject, e.g. outside the areas where the location-dependent information is projected.
- additional information of the computed tomography device is additionally displayed on the surface of the examination subject, e.g. outside the areas where the location-dependent information is projected.
- the representation is projected in different colors on the examination object.
- scan ranges are displayed in green and non-scannable areas in red or various possible scan ranges in different colors. It is also possible to display measurement errors or unrecorded areas of the topogram in color.
- a planning of a computed tomography image is carried out on the basis of the information displayed on the surface of the examination subject. For this purpose e.g. automatically selects the scan ranges for a computed tomography scan.
- FIG 1 shows a view of a computed tomography device according to the invention with a light projector and FIG 2 shows a sequence of a method according to the invention.
- the computer tomo- Graphics device 10 has a gantry 11, which has a non-illustrated line detector and an X-ray source.
- the gantry 11 is rotatable about an opening in which a patient 13 arranged on a patient bed 14 is mounted.
- the computed tomography device 10 also has a system controller 15, which is provided for driving the device.
- a computing unit 16 and a display unit, such as a monitor 17, are provided.
- the arithmetic unit is designed for the calculation and reconstruction of X-ray images and can be integrated into the system controller 15.
- the system controller 15 and the computing unit 16 may be formed by a computer, for example.
- the light projector 12 is arranged above the patient table, for example, on or in the gantry 11 or on a holder, for example, on a ceiling of an examination room and is likewise controlled by the system control.
- the light projector 12 is designed to project information in one or more colors in the correct position onto the surface of the patient. These can be formed, for example, by the scan rank 18 or the non-scannable area 19. For example, the areas may be projected onto the surface of the patient as rectangles or other geometric shapes.
- the computed tomography device is designed to carry out the method according to the invention automatically.
- FIG. 2 shows a sequence of the method according to the invention.
- a 2D overview image (topogram) is recorded by means of the computed tomography device.
- the patient 13 arranged on the patient couch 14 is moved through the gantry along an axis through the longitudinal direction of the patient couch.
- projections are continuously recorded without rotation of the recording system, which are then interpolated in the arithmetic unit to the topogram.
- position-dependent information is subsequently determined with data from the overview image, for example the scannable and / or the non-scannable driving ranges (scan ranges). This can be performed for example by means of the system control and / or the arithmetic unit 16.
- the position-dependent information is then transmitted in a third step 22 to the light projector and projected by him in a fourth step 23 on the patient or its surface by means of the light projector in the correct position.
- the corresponding scan ranges e.g. indicated by colored rectangles or other geometric shapes on the surface of the patient, exactly in the position previously determined by the topogram.
- the non-scannable areas e.g. in another, different from the first color color.
- other information may additionally be superimposed on the patient surface, e.g. a dose distribution curve or the acquisition mode used. These do not have to be displayed in the correct position.
- Errors or non-scannable areas are displayed or corresponding areas on the patient are illuminated.
- information about the topogram e.g. The areas that are scanned or can not be scanned, directly on the patient and thus very clearly displayed.
- An application is e.g. one
- the invention can be briefly summarized in the following way: For a better recording planning is a method for planning support in a computed tomography recording an examination subject by means of a computed tomography device with the following steps:
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Radiology & Medical Imaging (AREA)
- Optics & Photonics (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Human Computer Interaction (AREA)
- Pulmonology (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Oral & Maxillofacial Surgery (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020157009930A KR101695117B1 (ko) | 2012-09-20 | 2013-09-05 | 계획 보조를 위한 방법 및 컴퓨터 단층촬영 장치 |
CN201380048526.0A CN104640505A (zh) | 2012-09-20 | 2013-09-05 | 用于计划支持的方法和计算机断层成像设备 |
US14/425,767 US10206633B2 (en) | 2012-09-20 | 2013-09-05 | Method for planning support and computer tomography device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012216850.8A DE102012216850B3 (de) | 2012-09-20 | 2012-09-20 | Verfahren zur Planungsunterstützung und Computertomographiegerät |
DE102012216850.8 | 2012-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014044540A1 true WO2014044540A1 (de) | 2014-03-27 |
Family
ID=49322331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/068338 WO2014044540A1 (de) | 2012-09-20 | 2013-09-05 | Verfahren zur planungsunterstützung und computertomographiegerät |
Country Status (5)
Country | Link |
---|---|
US (1) | US10206633B2 (de) |
KR (1) | KR101695117B1 (de) |
CN (1) | CN104640505A (de) |
DE (1) | DE102012216850B3 (de) |
WO (1) | WO2014044540A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102014205702A1 (de) * | 2014-03-27 | 2015-10-01 | Siemens Aktiengesellschaft | Positionierungseinheit zur Positionierung eines Patienten, bildgebendes Gerät sowie Verfahren zum optischen Erzeugen einer Positionierungshilfe |
DE102014206005A1 (de) * | 2014-03-31 | 2015-10-01 | Siemens Aktiengesellschaft | Positionieren eines Untersuchungsobjekts in einer medizinischen Bildgebungsvorrichtung |
DE102015211148A1 (de) * | 2015-06-17 | 2016-12-22 | Siemens Healthcare Gmbh | Verfahren zu einem Auswählen von zumindest einer Untersuchungsinformation für eine medizinische Bildgebungsuntersuchung sowie eine medizinische Bildgebungsvorrichtung hierzu |
EP3113111B1 (de) * | 2015-07-03 | 2019-08-14 | Agfa Nv | Anzeige der tiefenposition von computertomografieschnittbildern in bezug auf ein abzubildendes objekt |
CN105534536A (zh) * | 2015-11-20 | 2016-05-04 | 江门市宏乔新材料科技有限公司江海区分公司 | 一种体表成像投影系统 |
JP2017108821A (ja) * | 2015-12-15 | 2017-06-22 | コニカミノルタ株式会社 | 放射線画像撮影システム |
CN110507337B (zh) * | 2019-08-28 | 2023-07-11 | 上海联影医疗科技股份有限公司 | 一种医学设备控制系统、医学设备控制方法及装置 |
PL3669942T3 (pl) | 2018-12-17 | 2022-05-16 | Shanghai United Imaging Healthcare Co., Ltd. | Systemy oraz sposoby określania obszaru będącego przedmiotem zainteresowania w badanym obiekcie |
DE102020207753A1 (de) * | 2020-06-23 | 2021-12-23 | Siemens Healthcare Gmbh | Optimierung der Lagerung eines Patienten auf einer Patientenliege für die medizinische Bildgebung |
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2012
- 2012-09-20 DE DE102012216850.8A patent/DE102012216850B3/de active Active
-
2013
- 2013-09-05 US US14/425,767 patent/US10206633B2/en active Active
- 2013-09-05 KR KR1020157009930A patent/KR101695117B1/ko active IP Right Grant
- 2013-09-05 WO PCT/EP2013/068338 patent/WO2014044540A1/de active Application Filing
- 2013-09-05 CN CN201380048526.0A patent/CN104640505A/zh active Pending
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Also Published As
Publication number | Publication date |
---|---|
US20150208989A1 (en) | 2015-07-30 |
CN104640505A (zh) | 2015-05-20 |
KR20150058414A (ko) | 2015-05-28 |
KR101695117B1 (ko) | 2017-01-10 |
DE102012216850B3 (de) | 2014-02-13 |
US10206633B2 (en) | 2019-02-19 |
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