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Interleaved dark and bright blood imaging for interleaved dynamic contrast-enhanced magnetic resonance imaging

A magnetic resonance, dark blood technology, applied in the field of medical imaging, which can solve the problems of errors, current implementation limitations of IBBIDCE, etc.

Active Publication Date: 2018-02-13
KONINKLJIJKE PHILIPS NV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current implementations of IBBI DCE are typically limited because IBBI DCE typically requires post-acquisition processing before signals from dark and bright blood images can be directly compared
This requires additional data acquisition and additional processing time
In addition, conversion may introduce errors

Method used

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  • Interleaved dark and bright blood imaging for interleaved dynamic contrast-enhanced magnetic resonance imaging
  • Interleaved dark and bright blood imaging for interleaved dynamic contrast-enhanced magnetic resonance imaging
  • Interleaved dark and bright blood imaging for interleaved dynamic contrast-enhanced magnetic resonance imaging

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Embodiment Construction

[0018] It is recognized herein that direct comparison of dark and bright blood images acquired by interleaved dark and bright blood imaging (IBBI) cannot be made because of the different contrast mechanisms typically used to generate dark and bright blood images . For example, the use of motion-sensitized drive equalization (MSDE) for dark blood imaging and time-of-flight (TOF) for bright blood imaging prevents direct comparison of the signals obtained by dark blood imaging and bright blood imaging. Therefore, different rules govern the signaling behavior of these different contrast mechanisms.

[0019] Additional difficulties to current implementations of IBBI include removal of signal interference between dark and bright blood images and robust blood suppression during dark blood imaging. The dark blood preparation should not alter the blood signal in the bright blood image and vice versa. Additionally, blood suppression should be consistent both before and after contrast ...

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Abstract

The magnetic resonance system (10) and corresponding method image a subject using a conversion-free interleaved dark and bright blood imaging (cfIBBI) sequence. The MR scanner (12) is controlled to perform multiple repetitions of the dark blood imaging sequence (52). The dark blood imaging sequence (52) includes a tissue zeroing subsequence followed by a dark blood acquisition subsequence (56) performed at a time interval (TI) after the tissue zeroing subsequence. The MR scanner (12) is also controlled to perform a bright blood imaging sequence (54) between successive repetitions of the dark blood imaging sequence (52) comprising a tissue zeroing subsequence followed by the The bright blood collection subsequence (58) performed at a time interval (TI) following the tissue zeroing subsequence. The time interval (TI) of the dark blood imaging sequence (52) and the time interval (TI) of the bright blood imaging sequence (54) have the same duration.

Description

technical field [0001] The present invention generally relates to medical imaging. It is particularly applied in conjunction with interleaved dark blood and bright blood imaging, and the invention will be described with particular reference to interleaved dark blood and light blood imaging. However, it should be understood that the present invention is also applicable to other usage scenarios and is not necessarily limited to the aforementioned applications. Background technique [0002] Interleaved dark and bright blood imaging (IBBI) is useful for dynamic contrast-enhanced (DCE) vessel wall magnetic resonance imaging (MRI) because it allows simultaneous acquisition of high spatial resolution images of the vessel wall (dark blood images) and high temporal resolution images (bright blood images) to determine the arterial input function (AIF). However, current implementations of IBBI DCE are typically limited because IBBI DCE typically requires post-acquisition processing b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/56G01R33/563
CPCG01R33/5601G01R33/5607G01R33/56366G01R33/5635A61B5/0263
Inventor J·王H·陈P·博尔纳特C·苑
Owner KONINKLJIJKE PHILIPS NV