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A method and device for image-based prognosis assessment

A prognostic assessment and image technology, applied in the field of electronic information, can solve the problem of low accuracy and achieve the effect of improving accuracy, strong objectivity and high accuracy

Active Publication Date: 2020-12-18
INFERVISION MEDICAL TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, ASPECTS has some limitations, resulting in low accuracy of prognosis

Method used

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  • A method and device for image-based prognosis assessment
  • A method and device for image-based prognosis assessment
  • A method and device for image-based prognosis assessment

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Experimental program
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Embodiment Construction

[0052] It can be seen from the background technology that in the prior art, the medical images of the patients are manually observed, and the prognosis of the lesion is quantitatively scored based on experience, so as to realize the prognosis assessment according to the corresponding relationship between the preset scores and the clinical results.

[0053]Taking non-contrast computerized tomography (NCCT) images of the brain, ASPECTS is used to evaluate the prognosis of ischemia in the middle cerebral artery supply area as an example.

[0054] The limitations of the ASPECTS method are mainly reflected in:

[0055] 1. Manually observe the images and determine the scores based on experience, which is highly subjective: because the ultra-early ischemic changes of stroke on CT images are small, and the density of ischemic lesions is slightly lower than that of normal brain tissue, that is, the lesions are closely related to normal brain tissue. The difference in normal tissue is n...

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Abstract

The present application provides an image-based prognosis assessment method and device, the method comprising: acquiring position information of a first region in an image. The location information of the second area in the image is acquired. According to the position information of the first area, the position information of the second area and the image information, parameters are calculated, and the parameters include the volume of the lesion area and the volume ratio of the lesion area in the preset area. Based on the characteristic values ​​and the preset model, the outcome of the prognosis assessment is determined. Compared with manual observation for prognostic scoring, this application determines the prognosis evaluation results based on parameters and models, so it has strong objectivity. Moreover, the parameters include the volume of the lesion area and the proportion of the volume of the lesion area in the preset area, because the volume of the lesion reflects the size of the lesion, and the proportion reflects the difference between the distribution areas of the lesion, so the prognosis can be further improved Assess the accuracy of the results. In summary, the technical solution described in this application has higher accuracy.

Description

technical field [0001] The present application relates to the field of electronic information, in particular to an image-based prognosis assessment method and device. Background technique [0002] Alberta Stroke Program Early CT Score (ASPECTS) is a method for evaluating early ischemic changes in the middle cerebral artery supply area in patients with ischemic stroke. It can quickly perform semi-quantitative evaluation of ischemic lesions. Help to judge the effect of thrombolysis and long-term prognosis. [0003] However, ASPECTS has some limitations, which lead to low accuracy in determining the prognosis. Contents of the invention [0004] During the research process, the applicant found that the limitations of ASPECTS are mainly reflected in: 1. The images are manually observed and the scores are determined by experience, which is highly subjective. 2. Neglecting the difference of lesion size and lesion distribution area on the different impact on the score. 3. Ignor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/62G06K9/62
CPCG06T7/0012G06T7/62G06T2207/10081G06T2207/30016G06T2207/20081G06T2207/20084G06V2201/03G06F18/00
Inventor 印宏坤张荣国陈宽王少康
Owner INFERVISION MEDICAL TECH CO LTD