Chen Xingcan, Liu Miao, He Dong, Li Xiaohong, Yue Chenghong, Zhao Kaiyu
Department of Radiology,No.117th Hospital of PLA, Hangzhou 310013, China. Email:
Department of Radiology,No.117th Hospital of PLA, Hangzhou 310013, China.
Zhonghua Yi Xue Za Zhi. 2014 Jul 1;94(25):1933-5.
To study the diagnostic value of disc low back pain (DLBP) with lumbar disc high-intensity zone on magnetic resonance imaging (MRI) .
The 21 patients of pare examination with MRI and CT discography (CTD) must have chronic low back pain without radicular pain and with no disc herniation on the CT or MRI. We have worked out the standard of CTD group and positive disc. The sensitivity, specificity and positive predictive value that the positive disc was diagnosed with MRI was used for statistical analysis in SPSS 15.0.
MRI showed 28 abnormal signal discs in 21 patients, including the high-intensity zone of posterior annulus in 12 discs and later- posterior annulus in 3 discs and discs degeneration in other 13 discs. The results of pare examination with MRI and CTD to 28 abnormal signal discs and 5 normal signal discs was (1)MRI showed the high-intensity zone of poster annulus in 12 discs and later- poster annulus in 2 discs and discs degeneration in 5 discs, while CTD showed 19 discs for group 2 with all positive discs. The shape of high-intensity zone showed on MRI was showed no difference with the shape of contrast agent collected under periphery disc on CTD. (2) MRI showed another high-intensity zone of later- poster annulus in 3 discs, while CTD showed one disc for group 5 with positive. (3) MRI showed the discs degeneration, while CTD showed 7 discs for group 3 with negative discs. (4) MRI showed 1 disc degeneration and 5 normal discs, while CTD showed 6 discs for group 1 with negative discs. (5)The sensitivity of diagnosis positive discs was 75%, the specificity and positive predictive value was respectively 100% with MRI.
The high-intensity zone of poster/later- poster annulus on MRI was typical sign of disc disruption and the important clinical role for diagnosing disc low back pain.
研究腰椎间盘磁共振成像（MRI）高信号区在椎间盘源性下腰痛（DLBP）中的诊断价值。
21例接受MRI和CT椎间盘造影（CTD）检查的患者必须有慢性下腰痛且无神经根性疼痛，CT或MRI检查无椎间盘突出。我们制定了CTD组和阳性椎间盘的标准。使用SPSS 15.0对MRI诊断阳性椎间盘的敏感性、特异性和阳性预测值进行统计分析。
MRI显示21例患者中有28个椎间盘信号异常，其中12个椎间盘后环高信号区，3个椎间盘后外侧环高信号区，其他13个椎间盘退变。对28个信号异常椎间盘和5个信号正常椎间盘进行MRI和CTD检查的结果为：（1）MRI显示12个椎间盘后环高信号区，2个椎间盘后外侧环高信号区，5个椎间盘退变，而CTD显示19个椎间盘为2组且所有阳性椎间盘。MRI上显示的高信号区形状与CTD下椎间盘周围收集的造影剂形状无差异。（2）MRI显示3个椎间盘后外侧环另一个高信号区，而CTD显示1个椎间盘为5组且阳性。（3）MRI显示椎间盘退变，而CTD显示7个椎间盘为3组且阴性椎间盘。（4）MRI显示1个椎间盘退变和5个正常椎间盘，而CTD显示6个椎间盘为1组且阴性椎间盘。（5）MRI诊断阳性椎间盘的敏感性为75%，特异性和阳性预测值分别为100%。
MRI上后/后外侧环高信号区是椎间盘破裂的典型征象，对诊断椎间盘源性下腰痛具有重要临床意义。
