CN114098769A - Medical image display method and module and medical image equipment - Google Patents

Medical image display method and module and medical image equipment Download PDF

Info

Publication number
CN114098769A
CN114098769A CN202010893793.XA CN202010893793A CN114098769A CN 114098769 A CN114098769 A CN 114098769A CN 202010893793 A CN202010893793 A CN 202010893793A CN 114098769 A CN114098769 A CN 114098769A
Authority
CN
China
Prior art keywords
window
image
medical image
medical
display
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.)
Pending
Application number
CN202010893793.XA
Other languages
Chinese (zh)
Inventor
周玮
田毅
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.)
Siemens Shanghai Medical Equipment Ltd
Original Assignee
Siemens Shanghai Medical Equipment Ltd
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 Siemens Shanghai Medical Equipment Ltd filed Critical Siemens Shanghai Medical Equipment Ltd
Priority to CN202010893793.XA priority Critical patent/CN114098769A/en
Publication of CN114098769A publication Critical patent/CN114098769A/en
Pending 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
    • A61B6/46—Arrangements for interfacing with the operator or the patient
    • A61B6/461—Displaying means of special interest
    • A61B6/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
    • 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
    • A61B6/464—Displaying means of special interest involving a plurality of displays
    • 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
    • A61B6/465—Displaying means of special interest adapted to display user selection data, e.g. graphical user interface, icons or menus
    • 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
    • A61B6/469—Arrangements for interfacing with the operator or the patient characterised by special input means for selecting a region of interest [ROI]

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Veterinary Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Human Computer Interaction (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

The invention discloses a medical image display method, a module and medical image equipment. The medical image display module includes: a first display unit which displays a first image in a first window at a first window width and a first window level; the selecting unit is used for receiving selection of an interested region on the first image, and the interested region selected on the first image corresponds to the second image; and the second display unit displays the second image in a second window with a second window width and a second window level at the same time of displaying the first image on the first display unit, wherein the second window width and the second window level are different from the first window width and the first window level respectively. Besides the traditional display window, the medical image display module and the medical image equipment also introduce a so-called image gray scale adjustment window aiming at the current single-view display mode. By applying different display window settings, the new window can have different CT value and gray scale mapping relations with the main window.

Description

Medical image display method and module and medical image equipment
Technical Field
The present invention relates to the display of medical images.
Background
In Computed Tomography (CT), CT values are converted to gray levels for display on a display device through a display window setting. The dynamic range of CT values is large, from-1024 HU to +3071HU, 4096HU, whereas a typical 8-bit pixel display device can only exhibit 28256 gray levels. Therefore, it is very difficult or even impossible to adequately visualize all CT image information on the display screen.
In CT image diagnosis, in order to display the CT value of a tissue structure of interest in an image, it is necessary to select and set an appropriate display window setting in a single view on a monitor screen. CT values above the selected upper window limit will appear as white, i.e., 255 gray levels, while CT values below the lower window limit will appear as black, i.e., 0 gray levels. The original CT values within the window are then linearly mapped to the full gray scale range of the display device.
Typically, the selected window level (window center) corresponds approximately to the average CT value of the region of interest, while the window width (window width) is determined based on the difference in CT values of tissue structures within the region of interest. For example, in a chest exam, the display window width of the mediastinum is typically between 300 and 400HU, while the window width of the lungs is between 1200 and 1500 HU. In many cases it is difficult or even impossible to obtain simultaneously well-defined display qualities of different organs in a single view, especially for organs with large differences in CT values.
The optimal image display effect can be provided by selecting and determining the appropriate window setting according to the clinical application requirements. The larger width of the display window is selected, so that the image noise can be reduced and a wider CT value range can be displayed; whereas a smaller window width is required when the viewer wants to increase the image grey scale contrast and carefully examine the local detail. In order to present the desired display quality of the CT value interval of interest in the view, the window settings have to be frequently adjusted for various clinical purposes, which is time consuming and laborious.
Disclosure of Invention
In view of the above, the present invention provides a medical image display method, a module and a medical image device, which present more detailed and wider image information to an observer through a dual view display mode based on a gray scale adjustment window, so as to satisfy more diverse clinical diagnosis requirements.
According to a first aspect of the present invention, there is provided a medical image display module comprising: a first display unit which displays a first image in a first window at a first window width and a first window level; the selecting unit is used for receiving selection of an interested region on the first image, and the interested region selected on the first image corresponds to the second image; and the second display unit displays the second image in a second window with a second window width and a second window level at the same time of displaying the first image on the first display unit, wherein the second window width and the second window level are different from the first window width and the first window level respectively.
In an embodiment, the medical image display module may further include a scaling unit, and the scaling unit scales the second window and the second image.
In an embodiment, the medical image display module may further include a moving unit that moves the second window.
In one embodiment, the second image is a portion of the first image covered by the second window.
In an embodiment, the medical image display module may further include a setting unit, and the setting unit sets the second window width and the second window level.
According to a second aspect of the present invention, there is provided a medical imaging apparatus comprising the medical image display module described above.
In one embodiment, the medical imaging device is a CT machine, and the first and second images are CT images.
According to a third aspect of the present invention, there is provided a medical image display method comprising: displaying a first image in a first window with a first window width and a first window level; receiving selection of an interested region on the first image, wherein the interested region selected on the first image corresponds to a second image; and displaying the second image in a second window with a second window width and a second window level on the second window while the first image is displayed on the first display unit, wherein the second window width and the second window level are different from the first window width and the first window level respectively.
In an embodiment, the medical image displaying method may further include: and zooming the second window and the second image.
In an embodiment, the medical image displaying method may further include: and moving the second window.
In one embodiment, the second image is a portion of the first image covered by the second window.
In an embodiment, the medical image display module may further include: and setting the second window width and the second window level.
According to a fourth aspect of the present invention, there is provided a medical imaging apparatus, characterized by comprising a processor configured to execute the medical image display method described above.
In one embodiment, the medical imaging device is a CT machine, and the first and second images are CT images.
Besides the traditional display window, the medical image display module and the medical image equipment also introduce a so-called image gray scale adjustment window aiming at the current single-view display mode. By applying different display window settings, the new window can have different CT value and gray scale mapping relations with the main window. Therefore, more information can be simultaneously displayed on the monitor screen, thereby providing richer image information for various clinical purposes, and having great significance and help for the viewer to improve reading performance and diagnosis quality.
Drawings
The foregoing and other features and advantages of the invention will become more apparent to those skilled in the art to which the invention relates upon consideration of the following detailed description of a preferred embodiment of the invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic block diagram of a medical image display module according to an embodiment of the present invention.
Fig. 2 is a flowchart of a medical image display method according to an embodiment of the invention.
Fig. 3A is a schematic diagram of a first image displayed by the medical image display module and method according to the embodiment of the invention.
Fig. 3B is a schematic diagram of a first image and a second image displayed by the medical image display module and method according to the embodiment of the invention.
In the above figures, the reference numerals used are as follows:
100 medical image display module 106 first display unit
102 first display unit 108 scaling unit
103 first image 110 moving unit
104 selection unit 112 setting unit
105 second image
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by referring to the following examples.
Fig. 1 is a schematic block diagram of a medical image display module 100 according to an embodiment of the present invention. As shown in fig. 1 and referring to fig. 3A and 3B, the medical image display module 100 includes a first display unit 102, a selection unit 104, and a second display unit 106. The first display unit 102 displays a first image 103 in a first window (main window) with a first window width and a first window level. The first display unit 102 displays the first image 103 in a first window (main window) with a first window width and a first window level. In the present embodiment, the first image 103 is a CT image. Fig. 3A is a schematic diagram of the first image 103 displayed by the medical image display module 100 according to the embodiment of the invention. The physician may view the first image 103 and resize the first window width, first window level, if necessary, to make a diagnosis. Since the different regions have different suitable window widths and levels, the selection unit 104 receives a selection of a region of interest on the first image 103, which corresponds to the second image 105. Fig. 3A shows a second image 105 selected at the first image 103. In order to better view the second image 105, the second display unit 106 displays the second image 105 in a second window (image gray-scale adjustment window) with a second window width and a second window level different from the first window width and the first window level, respectively, while the first display unit 102 displays the first image 103. Fig. 3B is a schematic diagram of the first image 103 and the second image 105 displayed by the medical image display module according to the embodiment of the invention. In the second window, the CT value of the second image 105 can be converted into a different gray scale from the first window through other display window settings, so that the unrecognized CT value in the first window can be highlighted and clearly recognized. Therefore, for various clinical purposes, the two views simultaneously display more CT image information on the monitor screen with different CT value gray scale mapping relations. The second view is generated by a region of interest (ROI) selected/drawn by the viewer on the first image 103 in the first view, always located on the first image 103. It can be flexibly opened or closed as required.
The medical image display module 100 may further include a scaling unit 108, and the scaling unit 108 scales the second window and the second image 105.
The medical image display module 100 may further include a moving unit 110, and the moving unit 110 moves the second window. In this case, the second image 105 is optionally the portion of the first image 103 covered by the second viewing window. Thus, the second image 105 displayed in the second viewport may change as the viewport is moved, and the physician may move the second viewport to any region on the first image 103 as desired.
The medical image display module 100 may further include a setting unit 112, and the setting unit 112 sets a second window width and a second window level. Thus, like the normal image display window, the observer can manually or automatically adjust the display window setting, and can change the mapping relationship between the CT value and the gray scale in the second window at any time, so as to display the desired CT value interval and the desired image gray scale contrast to the observer.
The medical image display module 100 of the present invention can be applied to various medical imaging devices, such as CT machines, X-ray machines, and magnetic resonance systems. These devices have corresponding images, for example, when applied to a CT machine, the first image 103 and the second image 105 are CT images.
Fig. 2 is a flowchart of a medical image display method 200 according to an embodiment of the invention. As shown in fig. 2 and referring to fig. 3A and 3B, the medical image display method 200 includes step S102, step S104, and step S106. In step S102, a first image 103 is displayed in a first window (main window) with a first window width and a first window level. In the present embodiment, the first image 103 is a CT image. Fig. 3A is a schematic diagram of the first image 103 displayed by the medical image displaying method 200 according to the embodiment of the invention. The physician may view the first image 103 and resize the first window width, first window level, if necessary, to make a diagnosis. Since the different regions have different suitable window widths and levels, a selection of a region of interest on the first image 103 is received, for which purpose in step S104 the selected region of interest on the first image 103 corresponds to the second image 105. Fig. 3A shows a second image 105 selected at the first image 103. In order to better view the second image 105, in step S106, the first image 103 is displayed, and simultaneously the second image 105 is displayed in a second window (image gray-scale adjustment window) with a second window width and a second window level, which are different from the first window width and the first window level, respectively. Fig. 3B is a schematic diagram of the first image 103 and the second image 105 displayed by the medical image displaying method according to the embodiment of the invention. In the second window, the CT value of the second image 105 can be converted into a different gray scale from the first window through other display window settings, so that the unrecognized CT value in the first window can be highlighted and clearly recognized. Therefore, for various clinical purposes, the two views simultaneously display more CT image information on the monitor screen with different CT value gray scale mapping relations. The second view is generated by a region of interest (ROI) selected/drawn by the viewer on the first image 103 in the first view, always located on the first image 103. It can be flexibly opened or closed as required.
The medical image display method 200 may further include step S108. In step S108, the second view and the second image 105 are zoomed.
The medical image display method 200 may further include step S110. In step S110, the second window is moved. In this case, the second image 105 is optionally the portion of the first image 103 covered by the second viewing window. Thus, the second image 105 displayed in the second viewport may change as the viewport is moved, and the physician may move the second viewport to any region on the first image 103 as desired.
The medical image display method 200 may further include step S112. In step S112, a second window width and a second window level are set. Thus, like the normal image display window, the observer can manually or automatically adjust the display window setting, and can change the mapping relationship between the CT value and the gray scale in the second window at any time, so as to display the desired CT value interval and the desired image gray scale contrast to the observer.
The medical image display method 200 of the present invention can be applied to various medical imaging devices, such as CT machines, X-ray machines, and magnetic resonance systems. These devices include a processor configured to perform the medical image display method 200. These devices have corresponding images, for example, when applied to a CT machine, the first image 103 and the second image 105 are CT images.
The medical image display module, the medical image display method and the medical image equipment in the invention introduce a so-called image gray scale adjustment window aiming at the current single-view display mode besides the traditional display window. By applying different display window settings, the new window can have a different CT value gray scale mapping relationship than the main window. Therefore, more information can be simultaneously displayed on the monitor screen, thereby providing more sufficient image information for various clinical purposes, and having great significance and help to the observer to improve reading performance and diagnosis quality.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (14)

1. A medical image display module, comprising:
a first display unit (102) that displays a first image (103) in a first window at a first window width and a first window level;
a selection unit (104) receiving a selection of a region of interest on the first image (103), the selected region of interest on the first image (103) corresponding to the second image (105);
and a second display unit (106) that displays the second image (105) in a second window at a second window width and a second window level different from the first window width and the first window level, respectively, while the first image (103) is displayed on the first display unit (102).
2. The medical image display module according to claim 1, further comprising a scaling unit (108), wherein the scaling unit (108) scales the second window and the second image (105).
3. The medical image display module according to claim 1, further comprising a moving unit (110), wherein the moving unit (110) moves the second window.
4. A medical image display module as claimed in claim 3, characterized in that the second image (105) is the part of the first image (103) covered by the second viewing window.
5. The medical image display module according to claim 1, further comprising a setting unit (112), wherein the setting unit (112) sets the second window width and the second window level.
6. A medical imaging apparatus, comprising the medical image display module according to any one of claims 1 to 5.
7. The medical imaging device of claim 6, wherein the medical imaging device is a CT machine and the first and second images are CT images.
8. A medical image display method is characterized by comprising the following steps:
displaying a first image (103) in a first window at a first window width and a first window level;
receiving a selection of a region of interest on the first image (103), the selected region of interest on the first image (103) corresponding to the second image (105);
and displaying the second image (105) in a second window with a second window width and a second window level at the same time when the first image (103) is displayed on the first display unit (102), wherein the second window width and the second window level are different from the first window width and the first window level respectively.
9. The medical image display method according to claim 8, further comprising:
the second view and the second image are scaled (105).
10. The medical image display method according to claim 8, further comprising:
and moving the second window.
11. The medical image display module as set forth in claim 10, wherein the second image (105) is a portion of the first image (103) covered by the second window.
12. The medical image display module according to claim 8, further comprising:
and setting the second window width and the second window level.
13. A medical imaging apparatus, comprising a processor configured to perform the medical image display method of any one of claims 8 to 12.
14. The medical imaging device of claim 13, wherein the medical imaging device is a CT machine and the first and second images are CT images.
CN202010893793.XA 2020-08-31 2020-08-31 Medical image display method and module and medical image equipment Pending CN114098769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010893793.XA CN114098769A (en) 2020-08-31 2020-08-31 Medical image display method and module and medical image equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010893793.XA CN114098769A (en) 2020-08-31 2020-08-31 Medical image display method and module and medical image equipment

Publications (1)

Publication Number Publication Date
CN114098769A true CN114098769A (en) 2022-03-01

Family

ID=80359548

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010893793.XA Pending CN114098769A (en) 2020-08-31 2020-08-31 Medical image display method and module and medical image equipment

Country Status (1)

Country Link
CN (1) CN114098769A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114663653A (en) * 2022-05-16 2022-06-24 南京佗道医疗科技有限公司 Window level and window width calculation method for medical image region of interest

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114663653A (en) * 2022-05-16 2022-06-24 南京佗道医疗科技有限公司 Window level and window width calculation method for medical image region of interest

Similar Documents

Publication Publication Date Title
US5042077A (en) Method of highlighting subtle contrast in graphical images
EP1815424B1 (en) Touchless manipulation of images for regional enhancement
US20020039084A1 (en) Medical image display system
EP0476409A2 (en) Image display apparatus
Wang et al. A brief review of human perception factors in digital displays for picture archiving and communications systems
US20040138560A1 (en) Real-time scan conversion and rendering of ultrasound data
JP2000287955A (en) Image diagnostic supporting apparatus
US20050069186A1 (en) Medical image processing apparatus
CN114098769A (en) Medical image display method and module and medical image equipment
US8442290B2 (en) Simultaneous dual window/level settings for display of CT colonography images
JP2004159986A (en) Liquid crystal display device
Kundel Digital projection radiography of the chest.
Kamitani et al. Diagnostic performance in differentiation of breast lesion on digital mammograms: comparison among hard-copy film, 3-megapixel LCD monitor, and 5-megapixel LCD monitor
Fuchsjäger et al. Impact of ambient light and window settings on the detectability of catheters on soft-copy display of chest radiographs at bedside
JPH01147619A (en) Graph display device and improvement in visibility thereof
Ikeda et al. Influence of monitor luminance change on observer performance for detection of abnormalities depicted on chest radiographs
Pizer et al. Effective presentation of medical images on an electronic display station.
CN101390753B (en) CT thin-layer ultrahigh resolution image density conversion method
Ji et al. Optimizing the display function of display devices
US20090195548A1 (en) Method and Apparatus for Improved Display of Digital Mammographic Images
JP2015198813A (en) Image processor, image processing method, and image processing program
JP2006079590A (en) Image processor
JP3707823B2 (en) Image processing method and apparatus
EP1626567A2 (en) Image processing system and image processing method
Ichikawa et al. A new resolution enhancement technology using the independent sub-pixel driving for the medical liquid crystal displays

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination