Positioning method and system based on DSA image
A positioning method and image technology, applied in the field of medical imaging and computer, can solve the problems of easy missed diagnosis and long time, and achieve the effect of reducing the difference of diagnosis
Active Publication Date: 2019-11-26
UNION STRONG (BEIJING) TECH CO LTD
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This method is greatly affected by the viewing angle of view of the two-dimensional DSA image and the subjective consciousness of the observer, and it is prone to missed diagnosis, and the observation process requires the observer to think and spend a lot of time
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[0054]In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments of this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0055] figure 1 A schematic diagram of a positioning method based on a DSA image provided in an embodiment of this specification, specifically including the following steps:
[0056] Step S101: from the 3D DSA image to be processed, respectively obtain 2D images in the target direction by using the method of maximum density projection.
[0057] Three...
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The embodiment of the invention discloses a positioning method and system based on a DSA image, and belongs to the technical field of medical images and computers. According to the embodiment of the invention, the target area in the to-be-processed three-dimensional DSA image is positioned, so that the problems that a naked eye observation method is greatly influenced by subjective consciousness and much time is consumed are solved. The positioning method comprises the following steps: respectively obtaining two-dimensional images in a target direction from a three-dimensional DSA image to beprocessed by adopting a maximum density projection method; based on the two-dimensional image of the target direction, utilizing a search model to respectively obtain search results of the target areaof the target direction; and fusing the search results of the target area in the target direction to obtain a positioning area of the target area in the to-be-processed three-dimensional DSA image. According to the positioning method and system based on the DSA image provided by the embodiment of the invention, the target area in the three-dimensional DSA image can be directly displayed, and thetime for manual observation, thinking and judgment is shortened.
Description
technical field [0001] This description relates to the fields of medical imaging and computer technology, in particular to a positioning method and system based on DSA images. Background technique [0002] Intracranial aneurysm is a common vascular disease, which is a tumor-like protrusion of the arterial wall caused by local abnormal expansion of the intracranial artery lumen. According to reports, the prevalence of unruptured intracranial aneurysms in Chinese adults is as high as 7%. Rupture of unruptured intracranial aneurysms can lead to severe disability or even death. Therefore, early detection of intracranial aneurysms is of great significance. [0003] DSA (Digital subtraction angiography, digital subtraction angiography) is widely used in clinical practice as the gold standard for the diagnosis of intracranial arterial malformations and aneurysms. At present, the location of intracranial aneurysms mainly depends on visual observation. The "eye observation method"...
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IPC IPC(8): G06T7/00G06T7/73
CPCG06T7/0012G06T2207/10116G06T2207/20081G06T2207/20084G06T2207/30016G06T2207/30096G06T7/73
Inventor 王文智胡明辉马泽印胤杨光明秦岚
Owner UNION STRONG (BEIJING) TECH CO LTD