Head and Neck Imaging
The MRI Diagnosis of Far Lateral Lumbar Disc Herniation
Author：YAO Jian, SHI Yi-jie, PENG Ru-chen
affiliation： Department of Radiology, Luhe Hospital, Capital Medical University, 101149
PDFAbstract
Objective To evaluate the clinical diagnostic value of the 1.5TMRI imaging characteristics of the far lateral lumbar disc herniation (FLLDH)by respective study. Methods To collect 241 cases confirmed to be protrusion of intervertebral disc by surgical operation at Luhe hospital from Jan.2013 to Dec.2014.Among these patients,63 cases are the diagnosis to be FLLDH with totally 73 lesions. According to the 1.5TMRI imaging findings of these patients, the imaging characteristics, concomitant lesions, predilection site and the relationship of typing and ratio are analyzed, thereby estimating the diagnosis value of MRI in FLLDH. Results In 73 lesions of 63 patients diagnosed to be FLLDH, 52 lesions (71.1%) are founded at L4-5 segment and L5-S1 of the spin, 41 lesions (56.2%) are the intervertebral foramen subtype. And, 68 lesions (93.2%) occurred with concomitant bone degeneration, intervertebral disc degeneration. The sensitivity of the MRI diagnostic method in FLLDH is 75.3%, the specificity is 98.1%, the accuracy is 92.2%，the negative predictive value is 93.2%，and the positive predictive value is 92%. Conclusion MRI is a noninvasive imaging method, and can accurately diagnose the far lateral lumbar disc herniation. To analyze the imaging features of FLLDH is significant for guiding clinical diagnosis and treatment.
【Keyword】 Lumbar Vertebra; Far Lateral Lumbar Disc Herniation; MRI; 1.5T
【Chart number】R681.5；R445.2
【Document Identification Number】A
【DOI】10.3969/j.issn.1672-5131.2015.05.010
Chinese journal of CT and MRI
th13Volume， th 5 Issue
2015Year05Month
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