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Abstract：
OBJECTIVE: This study investigated potential use of computed tomography (CT)-based parameters in the lumbar spine as a surrogate for magnetic resonance imaging (MRI)-based findings.
METHODS: In this retrospective study, all individuals, who had a lumbar spine CT scan and MRI between 2006 and 2012 were reviewed (n = 198). Disc height (DH) and endplate degeneration (ED) were evaluated between Th12/L1-L5/S1. Statistics consisted of Spearman correlation and univariate/multivariable regression (adjusting for age and gender).
RESULTS: The mean CT-DH increased kranio-caudally (8.04 millimeters (mm) at T12/L1, 9.17 mm at L1/2, 10.59 mm at L2/3, 11.34 mm at L3/4, 11.42 mm at L4/5 and 10.47 mm at L5/S1). MRI-ED was observed in 58 (29%) individuals. CT-DH and MRI-DH had strong to very strong correlations (rho 0.781-0.904, p < .001). MRI-DH showed higher absolute values than CT-DH (mean of 1.76 mm). There was a significant association between CT-DH and MRI-ED at L2/3 (p = .006), L3/4 (p = .002), L4/5 (p < .001) and L5/S1 (p < .001). A calculated cut-off point was set at 11 mm.
CONCLUSIONS: In the lumbar spine, there is a correlation between disc height on CT and MRI. This can be useful in trauma and emergency cases, where CT is readily available in the lack of an MRI. In addition, in the middle and lower part of the lumbar spine, loss of disc height on CT scans is associated with more pronounced endplate degeneration on MRIs. If the disc height on CT scans is lower than 11 mm, endplate degeneration on MRIs is likely more pronounced.
UNASSIGNED: Level III, a retrospective study.
METHODS: In this retrospective study, all individuals, who had a lumbar spine CT scan and MRI between 2006 and 2012 were reviewed (n = 198). Disc height (DH) and endplate degeneration (ED) were evaluated between Th12/L1-L5/S1. Statistics consisted of Spearman correlation and univariate/multivariable regression (adjusting for age and gender).
RESULTS: The mean CT-DH increased kranio-caudally (8.04 millimeters (mm) at T12/L1, 9.17 mm at L1/2, 10.59 mm at L2/3, 11.34 mm at L3/4, 11.42 mm at L4/5 and 10.47 mm at L5/S1). MRI-ED was observed in 58 (29%) individuals. CT-DH and MRI-DH had strong to very strong correlations (rho 0.781-0.904, p < .001). MRI-DH showed higher absolute values than CT-DH (mean of 1.76 mm). There was a significant association between CT-DH and MRI-ED at L2/3 (p = .006), L3/4 (p = .002), L4/5 (p < .001) and L5/S1 (p < .001). A calculated cut-off point was set at 11 mm.
CONCLUSIONS: In the lumbar spine, there is a correlation between disc height on CT and MRI. This can be useful in trauma and emergency cases, where CT is readily available in the lack of an MRI. In addition, in the middle and lower part of the lumbar spine, loss of disc height on CT scans is associated with more pronounced endplate degeneration on MRIs. If the disc height on CT scans is lower than 11 mm, endplate degeneration on MRIs is likely more pronounced.
UNASSIGNED: Level III, a retrospective study.
摘要：
目的：本研究调查了腰椎计算机断层扫描（CT）为基础的参数作为磁共振成像（MRI）为基础的发现的替代的潜在用途。
方法：在这项回顾性研究中，所有个人,对2006年至2012年间进行腰椎CT扫描和MRI检查的患者进行了回顾性分析(n=198).在Th12/L1-L5/S1之间评估椎间盘高度（DH）和终板退变（ED）。统计包括Spearman相关性和单变量/多变量回归(调整年龄和性别)。
结果：平均CT-DH向后增加（T12/L1为8.04毫米（mm），L1/2为9.17mm，L2/3为10.59mm，L3/4为11.34mm，L4/5为11.42mm，L5/S1为10.47mm）。在58例（29％）个体中观察到MRI-ED。CT-DH和MRI-DH具有强至非常强的相关性(rho0.781-0.904,p<.001)。MRI-DH显示的绝对值高于CT-DH（平均1.76mm）。在L2/3时，CT-DH和MRI-ED之间存在显着关联（p=.006），L3/4（p=.002），L4/5（p<.001）和L5/S1（p<.001）。计算的截止点设定为11mm。
结论：在腰椎中，CT和MRI上的椎间盘高度之间存在相关性。这在创伤和紧急情况下很有用，在缺乏MRI的情况下，CT很容易获得。此外,在腰椎的中下部，CT扫描中椎间盘高度的丢失与MRI上更明显的终板退变相关。如果CT扫描的光盘高度低于11mm，MRI的终板退变可能更明显。
■三级,一项回顾性研究。
方法：在这项回顾性研究中，所有个人,对2006年至2012年间进行腰椎CT扫描和MRI检查的患者进行了回顾性分析(n=198).在Th12/L1-L5/S1之间评估椎间盘高度（DH）和终板退变（ED）。统计包括Spearman相关性和单变量/多变量回归(调整年龄和性别)。
结果：平均CT-DH向后增加（T12/L1为8.04毫米（mm），L1/2为9.17mm，L2/3为10.59mm，L3/4为11.34mm，L4/5为11.42mm，L5/S1为10.47mm）。在58例（29％）个体中观察到MRI-ED。CT-DH和MRI-DH具有强至非常强的相关性(rho0.781-0.904,p<.001)。MRI-DH显示的绝对值高于CT-DH（平均1.76mm）。在L2/3时，CT-DH和MRI-ED之间存在显着关联（p=.006），L3/4（p=.002），L4/5（p<.001）和L5/S1（p<.001）。计算的截止点设定为11mm。
结论：在腰椎中，CT和MRI上的椎间盘高度之间存在相关性。这在创伤和紧急情况下很有用，在缺乏MRI的情况下，CT很容易获得。此外,在腰椎的中下部，CT扫描中椎间盘高度的丢失与MRI上更明显的终板退变相关。如果CT扫描的光盘高度低于11mm，MRI的终板退变可能更明显。
■三级,一项回顾性研究。
