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Medical image processing device and medical image processing method

A medical image and processing device technology, applied in the field of medical image processing device and medical image processing, can solve the problems of unsuitable micro tube structure, low detection accuracy, loss of capillary veins, etc.

Active Publication Date: 2019-06-11
TOSHIBA MEDICAL SYST CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, among the cardiac regions selected in Patent Document 1 in multiple phases in which the heart hardly moves, including the cardiac region in the end-systole stage, when the heart region in the end-systole stage is selected, although the centerline of the artery is hardly extracted Affected, but for the extraction of the centerline of tiny blood vessels such as capillaries, since the capillaries at the end of systole become thinner compared with other periods of capillaries, the detection accuracy becomes lower, so based on In the case of end-systolic heart regions and heart regions in other phases, it is easy to lose the capillary choroid
That is, the image processing method of Patent Document 1 is not suitable for the extraction of fine tube structures.

Method used

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  • Medical image processing device and medical image processing method

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Embodiment approach 1

[0032] figure 1 It is a block diagram showing the medical image processing apparatus according to Embodiment 1 of the present invention.

[0033] Such as figure 1 As shown, the medical image processing device 100 includes an imaging unit 101 , an acquisition unit 102 , a calculation unit 103 , and a conversion unit 104 .

[0034] The imaging unit 101 images an object to be inspected to obtain a plurality of time-series medical images of the object. Taking one respiratory cycle as an example, the plurality of medical images are a plurality of medical images captured in each phase during the period from the beginning of the inhalation phase to the end of the exhalation phase. The medical image includes a region of interest to an operator as a region of interest. The region of interest in this embodiment is the lung region, but is not limited to the lung region.

[0035] The acquisition unit 102 takes a certain time phase in the time series as the reference time phase P1, and...

Embodiment approach 2

[0057] Image 6 It is a block diagram showing the medical image processing apparatus according to Embodiment 2 of the present invention. Such as Image 6 As shown, in addition to the imaging unit 101, the acquisition unit 102, the calculation unit 103, and the conversion unit 104 in the medical image processing device 100, the medical image processing device 200 in Embodiment 2 also includes: an attention region extraction unit 205 and a determination unit 206. Among them, the ROI extraction unit 205 is not essential and can be omitted. Components assigned the same reference numerals in the drawings are the same as those in the first embodiment. Only differences will be described below, and descriptions of the same parts will be omitted.

[0058] The region-of-interest extraction unit 205 extracts a region of interest to the observer, such as a lung region, from the constituent elements of the medical image captured by the imaging unit 101 , and uses the extracted region a...

Embodiment approach 3

[0074] Figure 8 It is a block diagram showing the medical image processing apparatus according to Embodiment 3 of the present invention.

[0075] Such as Figure 8 As shown, Embodiment 3 includes an imaging unit 301 , an acquisition unit 302 , a calculation unit 303 , a conversion unit 304 , and a comparison unit 305 . Embodiment 3 differs from Embodiment 1 in that the acquisition unit 302, calculation unit 303, and conversion unit 304 in Embodiment 3 are modifications of the acquisition unit 102, calculation unit 103, and conversion unit 104 in Embodiment 1. The comparison unit 305 is a part added to that of the first embodiment. Only the different parts are described below.

[0076] In Embodiment 3, in order to increase the accuracy of the comparison result by the comparison unit 207, image processing is performed using a mask covering the entire trachea and bronchi as a line structure instead of the central line of the trachea and bronchi in Embodiment 1. However, Imag...

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Abstract

A medical image processing device comprises the components of an acquiring part which utilizes a certain time phase as a reference time phase and acquires the linear structure of a tree-shaped member as a reference linear structure from the medical image of an examined member in the reference time phase; a calculating part which calculates motion vectors of component factors of the medical image from the reference time phase to a target time phase based on the medial image of the examined part in the reference time difference and the medical image of the examined part in other time phases as the target time phases; and a converting part which converts the reference linear structure based on the motion vectors and uses the converted reference linear structure as the target linear structure in the target time phase.

Description

technical field [0001] The present invention relates to a medical image processing device and a medical image processing method, in particular to a 4D medical image processing device and a medical image processing method for deforming a dendritic line structure based on the movement amount of the airway itself. Background technique [0002] In recent years, in order to analyze the symptoms of COPD (Chronic Obstructive Pulmonary Disease), emphysema, tracheal and bronchial diseases, etc., it is necessary to analyze multiple tree structures obtained in different phases of 3D images of the trachea and bronchi. The constructed images are positionally registered. However, since respiration is a process of dynamic movement, errors in data processing and analysis are caused by dynamic movement. [0003] Patent Document 1 discloses an image processing method for a heart by which processing time can be reduced and analysis errors based on heart beating can be reduced. In this techni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00A61B6/00
CPCA61B6/52G06T7/0012G06T2207/30101G06T2207/30172
Inventor 王艳丽科斯塔斯·普莱克斯王艳华王少彬许敏丰赵建春陈颀马尔科·拉泽托
Owner TOSHIBA MEDICAL SYST CORP
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