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Slice alignment for short axis cardiac mr cine slice stacks

A slice and heart technology, applied in the direction of using magnetic variable measurement, instrumentation, diagnostic recording/measurement, etc., can solve problems such as complex slice registration

Pending Publication Date: 2021-11-09
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a simple registration that maximizes the similarity of the registered slices may not yield an anatomically correct alignment
Furthermore, since slices are usually thick (8-10mm), the contents of successive slices can vary considerably, complicating slice-to-slice registration

Method used

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  • Slice alignment for short axis cardiac mr cine slice stacks
  • Slice alignment for short axis cardiac mr cine slice stacks
  • Slice alignment for short axis cardiac mr cine slice stacks

Examples

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Embodiment Construction

[0112] figure 1 A system 100 for slice alignment of stacks of short-axis cardiac magnetic resonance cine replay slices is shown, which may use a machine-trained model in one embodiment, and perform slice alignment using a deformable surface model in another embodiment. allow. The system 100 is shown to include an input interface 120 for accessing image data 030 of an input image slice set acquired using a short axis cardiac magnetic resonance cine playback protocol. For example, also as figure 1 As shown, an input interface 120 may provide data access 122 to an external data storage device 020 which may include said image data 030 . Alternatively, input interface 120 may provide data access to internal data storage devices that are part of system 100 . Alternatively, the image data 030 may be accessed via a network. In general, input interface 120 may take various forms, such as a network interface to a local or wide area network (eg, the Internet), a storage interface to ...

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Abstract

Slice alignment approaches are described for short axis cardiac magnetic resonance cine slice stacks, which do not require additional scans, such as long axis scans or full 3D scans, and which are able to deal with cardiac structures having complex shapes. Both approaches do not need contours to follow a quadratic curvature function, and are well suitable for the purpose of obtaining a segmentation of a cardiac structure using a deformable surface model. Namely, such a deformable surface model is unable, but also not desired, to fully adapt to the 'zig-zag'-shaped pattern in the boundary of the cardiac structure due to the slice misalignment. Having removed or reduced the misalignment between image slices, such a deformable surface model may better adapt to the cardiac structure in the image data and thereby provide a better segmentation of the cardiac structure.

Description

technical field [0001] The present invention relates to a system and computer-implemented method for slice alignment of short-axis cardiac magnetic resonance (MR) cine review slice stacks. The invention also relates to a machine-trained model for slice alignment of stacks of short-axis cardiac MR cine replay slices, and to a computer-readable medium comprising instructions for performing one of the computer-implemented methods. Background technique [0002] Cardiac MR images are typically acquired in a series of cine acquisitions of short-axis slices, and the time delay between multiple breath-keeping single-slice acquisitions results in misalignment that complicates 3D interpretation. 3D interpretation is useful for many advanced medical analyzes (e.g. apex and valves, accurate definition of wall thickness measurements, improved volume calculations compared to Simpson's method, etc.) [0003] Aligning slice stacks is a non-trivial task. For example, simply stacking the le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/563G01R33/483G01R33/565A61B5/00
CPCG01R33/56325G01R33/4835A61B5/0044G01R33/56509A61B5/055G06N20/00
Inventor J·彼得斯R·J·威斯T·维塞尔F·M·韦伯
Owner KONINKLJIJKE PHILIPS NV