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Method for automatic detection of a contrast agent inflow in a blood vessel of a patient with a CT system and CT system for carrying out this method

An automatic identification and contrast agent technology, applied in the field of CT system, can solve the problem of indistinguishable blood vessels

Inactive Publication Date: 2011-11-09
SIEMENS AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Known pattern recognition methods used here are often useless since blood vessels are barely distinguishable from surrounding organs with respect to their absorption

Method used

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  • Method for automatic detection of a contrast agent inflow in a blood vessel of a patient with a CT system and CT system for carrying out this method
  • Method for automatic detection of a contrast agent inflow in a blood vessel of a patient with a CT system and CT system for carrying out this method
  • Method for automatic detection of a contrast agent inflow in a blood vessel of a patient with a CT system and CT system for carrying out this method

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Embodiment Construction

[0040] figure 1 The CT system C1 according to the invention is shown schematically in an oblique view. The CT system C1 has a scanner C6 which includes at least one x-ray tube C2 and a detector C3 opposite it. Optionally, another X-ray tube C4 and another detector C5 can also be arranged on the support, so that scanning can also be performed simultaneously with different X-ray energies. The patient P is located on a patient couch C8 that is movable along the system axis C9 and can be moved along the system axis C9 into the measurement range of the scanner C6 for scanning. In addition, a contrast agent applicator C11 is provided, which can deliver a contrast agent bolus if required and if necessary under the control of the computer system C10 . Furthermore, an electrocardiogram line C12 is provided, which optionally measures the activity of the heart and can also generate corresponding image data in a known manner. The computer system C10 has a memory C13 in which the comput...

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Abstract

A method for automatic detection of a contrast agent inflow in a blood vessel of a patient with a CT system, and CT system for carrying out this method, are disclosed. At least one embodiment of the invention relates to a method which determines the position of at least one blood vessel A in section image representations S in a CT examination without external intervention with the aid of an active shape or active appearance model, measures the inflow of contrast agent in this region in a targeted way and automatically initiates at least one action in the event of inflowing contrast agent.

Description

technical field [0001] The present invention relates to a method for automatically identifying the flow of contrast medium in a patient's blood vessels using a CT system, wherein an overview scan is performed in a predetermined area of ​​the patient and the image value and / or the image value is automatically output when a predetermined CT image value threshold is reached. Trigger an action. [0002] Furthermore, the invention relates to a CT system with a scanner, a contrast agent applicator and a computer system for control and image analysis, the computer system having a memory for a computer program, wherein during operation the program stored in the computer program in memory. Background technique [0003] Such methods and CT systems are generally known. Therefore, in modern medicine, vascular diseases are diagnosed based on computed tomography angiography (CTA) tomographic image data. To improve the visibility of vascular structures, a contrast agent is injected into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03A61B19/00
CPCA61B6/4441A61B6/032A61B6/4447A61B6/541A61B6/5217A61B6/486A61B6/482A61B6/488A61B6/481G16H50/30
Inventor 多米尼克·伯恩哈特尤特·福伊尔莱茵斯蒂芬·格罗斯科普夫迈克尔·朔伊尔琳
Owner SIEMENS AG
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