Three-dimensional imaging method for visualization of fetal body surface structure based on magnetic resonance scanning

Abstract

The invention discloses a three-dimensional imaging method for fetal body surface structure visualization based on magnetic resonance scanning. The projection method completes the volume rendering display, so as to calculate the color value at the pixel point on the screen. The present invention utilizes the real steady-state free precession gradient echo sequence and the existing magnetic resonance imaging hardware facilities to collect three-dimensional data of the tissue structure of the fetal region of interest, and generates new data containing fetal histological characteristics through data processing. The processing software performs surface reconstruction on the new data to obtain a three-dimensional image of the fetal body surface structure.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to a three-dimensional imaging method for visualization of fetal body surface structure based on magnetic resonance scanning. Background technique [0002] At present, the three-dimensional imaging of fetal body surface structure can only be obtained by three-dimensional or four-dimensional ultrasound imaging. figure 1 It is the fetal facial image obtained by the current 3D ultrasound; the technical method is single, and the ultrasound imaging conditions are affected by many factors such as fetal position, structural occlusion, and amniotic fluid volume, and sometimes it is impossible to obtain a satisfactory 3D image of the fetal body surface. In addition, the positive findings of ultrasonography also lack the confirmation and support of other imaging examinations. [0003] Magnetic resonance scanning is safe, radiation-free, and has higher tissue resolution. It has been w...

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Problems solved by technology

[0002] At present, the three-dimensional imaging of fetal body surface structure can only be obtained by three-dimensional or four-dimensional ultrasound imaging. figure 1 It is the fetal facial image obtained by three-dimensional ultrasound; the technical method is single, and the ultrasound imaging conditions are affected by many factors such as fetal position, structural occlusion, and amniotic fluid volume, and sometimes it is impossible to obtain a satisfactory three-dimensional image of the fetal body surface

In addition, the positive findings of ultrasonography also lack the confirmation and support of other imaging examinations

[0003] Magnetic resonance scanning is safe, radiation-free, and has higher tissue resolution. It has been widely used in the diagnosis of fetal prenatal diseases. However, due to the characteristics of its imaging signals, it is difficult to mask the surface structure of the fetal body during its three-dimensional post-processing. Imaging and maximum intensity projection methods, so it is difficult to obtain three-dimensional images of fetal body surface structure based on magnetic resonance examination by conventional methods

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