Dynamic changes in the dural sac cross-sectional area on axial loaded MR imaging: is there a difference between degenerative spondylolisthesis and spinal stenosis …

H Ozawa, H Kanno, Y Koizumi… - American journal …, 2012 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Axial loaded MR imaging, which can simulate the spinal
canal of patients in a standing position, demonstrates a significant reduction of the DCSA …

Dynamic change of dural sac cross-sectional area in axial loaded magnetic resonance imaging correlates with the severity of clinical symptoms in patients with lumbar …

H Kanno, H Ozawa, Y Koizumi, N Morozumi, T Aizawa… - Spine, 2012 - journals.lww.com
Study Design. Cross-sectional registry and imaging cohort study. Objective. To examine
whether the dural sac cross-sectional area (DCSA) in axial loaded magnetic resonance …

Dynamic changes in the dural sac of patients with lumbar canal stenosis evaluated by multidetector-row computed tomography after myelography

S Kanbara, Y Yukawa, K Ito, M Machino, F Kato - European Spine Journal, 2014 - Springer
Purpose Some reported studies have evaluated the dural sac in patients with lumbar spinal
stenosis (LSS) by computed tomography (CT) after conventional myelography or magnetic …

Changes in dural sac caliber with standing MRI improve correlation with symptoms of lumbar spinal stenosis

YYO Lau, RKL Lee, JF Griffith, CLY Chan… - European Spine …, 2017 - Springer
Purpose Weight bearing does alter the dimension of lumbar spinal canal, but no study has
analyzed its clinical correlation. This study aims to evaluate whether the changes in dural …

Axial loading during magnetic resonance imaging in patients with lumbar spinal canal stenosis: does it reproduce the positional change of the dural sac detected by …

H Kanno, T Endo, H Ozawa, Y Koizumi, N Morozumi… - Spine, 2012 - journals.lww.com
Study Design. We compared the sizes of the dural sac among conventional magnetic
resonance imaging (MRI), axial loaded MRI, and upright myelography in patients with …

An increase in the degree of olisthesis during axial loading reduces the dural sac size and worsens clinical symptoms in patients with degenerative spondylolisthesis

H Kanno, T Aizawa, H Ozawa, Y Koizumi, N Morozumi… - The Spine Journal, 2018 - Elsevier
Abstract Background Context Previous studies have shown that axial loading during
magnetic resonance imaging (MRI) significantly reduces the size of the dural sac compared …

Correlation between dural sac size in dynamic magnetic resonance imaging and clinical symptoms in patients with lumbar spinal stenosis

Z Zhou, Z Jin, P Zhang, B Shan, Z Zhou, Y Zhang… - World Neurosurgery, 2020 - Elsevier
Objective To assess the dynamic change of the dural sac size in patients with lumbar spinal
stenosis (LSS) from supine to standing position and their correlation with clinical symptoms …

Increased facet fluid predicts dynamic changes in the dural sac size on axial-loaded MRI in patients with lumbar spinal canal stenosis

H Kanno, H Ozawa, Y Koizumi… - American Journal …, 2016 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Axial-loaded MR imaging, which simulates the spinal
canal in a standing position, demonstrates reductions of the dural sac cross-sectional area …

A comparison of two methods to evaluate a narrow spinal canal: routine magnetic resonance imaging versus three-dimensional reconstruction

LG Macedo, A Bodnar, MC Battié - The Spine Journal, 2016 - Elsevier
Abstract Background Context In routine clinical practice, the presence of lumbar spinal
stenosis (LSS) is assessed on axial magnetic resonance images (MRI) typically acquired …

Postural changes of the dural sac in the lumbar spines of asymptomatic individuals using positional stand-up magnetic resonance imaging

Y Hirasawa, WA Bashir, FW Smith, ML Magnusson… - Spine, 2007 - journals.lww.com
Study Design. Positional magnetic resonance imaging (MRI) study of control subjects.
Objectives. To determine dimensional changes in the lumbar dural sac as a function of …