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Method and device for recording medical images

A medical imaging and drug delivery technology, which is applied to radiological diagnostic instruments, diagnostic recording/measurement, radiological diagnostic equipment control, etc., can solve problems such as low efficiency use, increased patient risk and inspection cost, and achieve increased safety Effect

Active Publication Date: 2021-10-26
SIEMENS HEALTHCARE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Medical imaging with contrast agents here has the fundamental problem of achieving a contrast enhancement in vessels or tissues that is constant over time or simultaneously with the data acquisition, while specifically aiming to achieve contrast enhancement using the smallest possible amount of contrast agent
This results in inefficient use of contrast media and increases patient risk and examination costs

Method used

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  • Method and device for recording medical images
  • Method and device for recording medical images

Examples

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Embodiment Construction

[0038] figure 1 An example of the sequence of a diagnostic imaging procedure using contrast administration is shown. The bottom area shows a timing diagram of a CT scan (CT). First a known monitoring scan 42 is performed which is used to trigger an actual inspection scan 44 . In this scan, images are captured in chronological order. The scan 44 is triggered when a predefined threshold value 46 (signal level, gray level, attenuation value or CT value) is exceeded in a defined region of interest (ROI, eg a large vessel). The scan 44 starts in this case at a predefined delay after the predefined threshold 46 is reached. scan 44 at time t S and at time T E at the end.

[0039] The central area of ​​the figure shows the signal level S (gray level, attenuation value or CT value) in the form of a timing diagram. Administration of the contrast medium (KM) causes the signal level S to rise and reach a predefined threshold at point 46 . When the threshold value 46 is reached, th...

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Abstract

The invention relates to a method for recording medical images of a human or animal body. The method comprises the steps of: scanning for data acquisition; and signaling the start and / or end of manual administration of the contrast medium in temporal relation to the scan for data acquisition.

Description

technical field [0001] The invention relates to a method and a device for capturing medical images, in particular by means of computed tomography (CT) or magnetic resonance imaging (MRI). In particular, the invention relates to capturing two-dimensional or three-dimensional images of the interior of a human or animal body, which images are in particular intended to illustrate or display blood vessels. Background technique [0002] It is known to inject contrast agents in order to improve visualization of blood vessels. Medical imaging with contrast agents has here the fundamental problem of achieving a contrast enhancement in vessels or tissues that is constant over time or simultaneously with the data acquisition, while in particular aiming to achieve the contrast enhancement using the smallest possible amount of contrast agent. Contrast agents (such as radiation doses) have potentially adverse effects on patients, which is why it is justified to keep levels to a minimum. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/481A61B6/486A61B6/5205A61B6/54A61B6/44A61B6/4441A61B8/481A61M5/007G01R33/5601G01R33/283A61B6/504A61B8/483
Inventor J·G·科尔波拉尔R·劳帕赫
Owner SIEMENS HEALTHCARE GMBH
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