CT image-based osteoporosis parameter automatic measurement method

An osteoporosis, automatic measurement technology, applied in the field of medical image processing, can solve the problems of high inspection cost, inaccurate osteoporosis parameters, expensive DXA equipment, etc., and achieve the effect of high sensitivity

Active Publication Date: 2019-10-22
江苏天影医疗科技有限公司
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Problems solved by technology

Nowadays, DXA equipment is usually used for measurement, but DXA equipment is expensive, the cost of inspection is high, and it will make the subject bear extra X-ray dose. It can only calculate bone density from two-dimensional data, and then calculate the parameters of osteoporosis. Inaccurate

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0054] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0055] A method for automatically measuring osteoporosis parameters based on CT images of the present embodiment comprises the following steps:

[0056] 1) Constructing a clinical database: taking DXA diagnosis as a standard, constructing the corresponding relationship between the CT value of the vertebral body level to be measured and the bone density measured by DXA diagnosis;

[0057] 2) Correction of bone density measurement method: by performing CT scan on the body membrane with known density, the linear corresponding relationship between the CT value and the body membrane bone density ...

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Abstract

The invention discloses an CT image-based osteoporosis parameter automatic measurement method. The method comprises the following steps: 1) constructing a clinical data taking DXA diagnosis as astandard, and constructing a corresponding relation between a CT value of a to-be-measured vertebral body layer and bone mineral density measured through the DXA diagnosis; 2) carrying out bone mineral density measurement method correction: carrying out CT scanning on a body membrane with known density, establishing a linear corresponding relationship between a CT value and the bone mineral density of the body membrane, and then carrying out correction to obtain a corresponding relationship between the CT value and the real bone mineral density; 3) performing lumbar vertebra segmentation on the CT scanning image of the to-be-measured object, and then 4) performing bone mineral density calculation. According to the method, three-dimensional measurement is carried out from the three-dimensional CT image. The osteoporosis sensitivity is high. An examiner does not have extra X-rays. The measurement process is automatically and objectively quantified. In addition, bone trabecula morphological parameters and rubbing parameters can be additionally obtained.

Description

technical field [0001] The invention relates to the technical field of medical image processing, in particular to an automatic measurement method for osteoporosis parameters based on CT images. Background technique [0002] The full name of bone mineral density is bone mineral density, which is an important indicator of bone strength, expressed in grams per cubic centimeter, and is an absolute value. When using bone density values ​​clinically, because the absolute values ​​of different bone density detectors are different, the T value is usually used to judge whether the bone density is normal. Bone mineral density is an important marker of bone quality, reflecting the degree of osteoporosis and an important basis for predicting the risk of fracture. In addition to diagnosing osteoporosis, it can also be used for clinical drug effect observation and epidemiological investigation, and has significant advantages in predicting osteoporotic fractures. Nowadays, DXA equipment ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/12G06T7/136G06T5/30G06N3/08
CPCG06T7/0012G06T7/12G06T7/136G06T5/30G06N3/08G06T2207/10081G06T2207/30012G06T2207/20104
Inventor 朱建兵戴亚康周志勇胡冀苏钱旭升
Owner 江苏天影医疗科技有限公司
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