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利用振荡梯度自旋回波研究脑脓肿中的时间依赖性扩散。

Time-dependent Diffusion in Brain Abscesses Investigated with Oscillating-gradient Spin-echo.

作者信息

Maekawa Tomoko, Hori Masaaki, Murata Katsutoshi, Feiweier Thorsten, Kamiya Kouhei, Andica Christina, Hagiwara Akifumi, Fujita Shohei, Kamagata Koji, Wada Akihiko, Abe Osamu, Aoki Shigeki

机构信息

Department of Radiology, Juntendo University School of Medicine.

Department of Diagnostic Radiology Toho University Omori Medical Center.

出版信息

Magn Reson Med Sci. 2022 Oct 1;21(4):525-530. doi: 10.2463/mrms.ici.2021-0083. Epub 2021 Sep 10.

DOI:10.2463/mrms.ici.2021-0083
PMID:34511577
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9618933/
Abstract

Oscillating-gradient spin-echo sequences enable the measurement of diffusion weighting with a short diffusion time and can provide indications of internal structures. We report two cases of brain abscess in which the apparent diffusion coefficient (ADC) values appear higher at short diffusion times in comparison with those at long diffusion times. Diffusion time dependence of the ADC in brain abscesses suggests not only substrate viscosity but also restricted diffusion due to the structure within the lesions.

摘要

振荡梯度自旋回波序列能够在短扩散时间内测量扩散加权，并可提供内部结构的指征。我们报告了两例脑脓肿病例,其中表观扩散系数（ADC）值在短扩散时间时比长扩散时间时显得更高。脑脓肿中ADC的扩散时间依赖性不仅提示底物粘度，还提示由于病灶内结构导致的扩散受限。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/f6fc9d917b8b/mrms-21-525-g6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/d78b0213f557/mrms-21-525-g1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/2d20340388d5/mrms-21-525-g2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/b32bd541d538/mrms-21-525-g3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/89922f91cf7c/mrms-21-525-g4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/9d58014d6640/mrms-21-525-g5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/f6fc9d917b8b/mrms-21-525-g6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/d78b0213f557/mrms-21-525-g1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/2d20340388d5/mrms-21-525-g2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/b32bd541d538/mrms-21-525-g3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/89922f91cf7c/mrms-21-525-g4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/9d58014d6640/mrms-21-525-g5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d0/9618933/f6fc9d917b8b/mrms-21-525-g6.jpg

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本文引用的文献

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Probing neural tissues at small scales: Recent progress of oscillating gradient spin echo (OGSE) neuroimaging in humans.小尺度下对神经组织的探测：振荡梯度自旋回波（OGSE）神经成像在人体中的最新进展。
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Time-dependent Diffusion in Transient Splenial Lesion: Comparison between Oscillating-gradient Spin-echo Measurements and Monte-Carlo Simulation.时变扩散在短暂性胼胝体病变中的研究： 震荡梯度回波测量与蒙特卡罗模拟的比较。
Magn Reson Med Sci. 2021 Jun 1;20(2):227-230. doi: 10.2463/mrms.bc.2020-0046. Epub 2020 Jul 1.
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Changes in the ADC of diffusion-weighted MRI with the oscillating gradient spin-echo (OGSE) sequence due to differences in substrate viscosities.
由于底物粘度不同，采用振荡梯度自旋回波（OGSE）序列的扩散加权磁共振成像（DWI）的表观扩散系数（ADC）发生变化。
Jpn J Radiol. 2018 Jul;36(7):415-420. doi: 10.1007/s11604-018-0737-0. Epub 2018 Apr 26.
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Spatial Restriction within Intracranial Epidermoid Cysts Observed Using Short Diffusion-time Diffusion-weighted Imaging.颅内表皮样囊肿应用短扩散时间弥散加权成像观察到的空间限制。
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Pathogenesis of Staphylococcus aureus abscesses.金黄色葡萄球菌脓肿的发病机制。
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Magn Reson Med. 2014 Nov;72(5):1366-74. doi: 10.1002/mrm.25441. Epub 2014 Aug 28.
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Measuring restriction sizes using diffusion weighted magnetic resonance imaging: a review.使用扩散加权磁共振成像测量受限大小：综述
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Revealing mesoscopic structural universality with diffusion.用扩散揭示介观结构的普遍性。
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Diffusion-weighted MR imaging of rim-enhancing brain masses: is markedly decreased water diffusion specific for brain abscess?环形强化脑肿块的扩散加权磁共振成像：水扩散明显降低对脑脓肿具有特异性吗？
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