Bone mineral density detection equipment and detection method

A technology of detection equipment and detection method, which is applied in diagnostic recording/measurement, medical science, diagnosis, etc., and can solve problems such as inability to collect bone tissue signals, less bone density detection, and long acquisition echo time

Active Publication Date: 2016-03-30
PEKING UNIV
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Problems solved by technology

However, the existing magnetic resonance imaging equipment and methods take a long time to collect echoes, and cannot collect bone tissue signals under extremely short echo times, so they are rarely used in the detection of bone density

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  • Bone mineral density detection equipment and detection method
  • Bone mineral density detection equipment and detection method
  • Bone mineral density detection equipment and detection method

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Embodiment Construction

[0048] Below in conjunction with accompanying drawing, further describe the present invention through embodiment, but do not limit the scope of the present invention in any way.

[0049] The present invention provides a device and detection method for bone density measurement, which are used to improve the accuracy, repeatability and safety of bone density data measurement, so that the detection data can more accurately reflect the quality of bone, and Reduce radiation hazards to medical staff and patients.

[0050] The present invention shortens the equipment echo time to ultra-short echo time UTE (Ultra-short EchoTime, the scope is that the echo time is shorter than 100 microseconds) by designing magnetic resonance hardware equipment, and can collect T 2 T 2 Relaxation time spectrum and other data, further T 2 The relaxation time spectrum is combined with the quantitatively determined bone density data to finally achieve the purpose of correctly measuring bone density.

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Abstract

The invention discloses a bone mineral density detection equipment and detection method based on a magnetic resonance T2 relaxation time spectrum. A bone mineral density is detected based on the magnetic resonance T2 relaxation time spectrum. The detection equipment comprises a computer control terminal, a one-board magnetic resonance controller unit, a signal amplification and switch control unit and a magnet unit. According to the bone mineral density detection equipment and detection method, water molecule magnetic resonance transverse relaxation deamplification is measured firstly, the corresponding T2 relaxation time spectrum is obtained through a mathematical inversion method, structural characteristics of pores among bone trabeculae are determined by analyzing all peak values on the T2 relaxation time spectrum, and biological bone mineral density data is obtained through a regression analysis data processing method finally. The bone mineral density detection equipment and detection method can be applied to identification of osteoporosis, the functions of rapidly and nondestructively analyzing and measuring the bone mineral density, evaluating the bone quality and the like are achieved, and the bone mineral density detection equipment and detection method have the advantages of being safe and harmless to organisms, simple in equipment structure, small in size, light in weight, high in measurement precision, easy and convenient to operate, high in repeatability of measurement method and the like.

Description

technical field [0001] The invention belongs to the technical field of magnetic resonance, relates to biological bone density detection, in particular to a magnetic resonance T-based 2 A bone density detection device and a detection method of a relaxation time spectrum. Background technique [0002] Bones are one of the most basic and important physiological structures in the human body. As people age, most people lose bone mass; when bone loss is severe, osteoporosis occurs. Osteoporosis not only increases the risk of fractures, but also causes various complications, which seriously threaten human health. [0003] Generally speaking, the bone structure of patients with osteoporosis has no particularly obvious changes, and the more significant changes are in bone quality. In order to quantify bone quality, BMD (Bone Mineral Density) is generally selected as a parameter to measure bone quality. The current main methods for measuring BMD data include single-photon absorpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
CPCA61B5/055
Inventor 王为民李成伟范东伟
Owner PEKING UNIV
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