title: Enough positive rate of paraspinal mapping and diffusion tensor imaging with levels which should be decompressed in lumbar spinal stenosis.
abstract: BACKGROUND
  In lumbar spinal stenosis, correlating symptoms and physical examination findings with decompression levels based on common imaging is not reliable. Paraspinal mapping (PM) and diffusion tensor imaging (DTI) may be possible to prevent the false positive occurrences with MRI and show clear benefits to reduce the decompression levels of lumbar spinal stenosis than conventional magnetic resonance imaging (MRI) + neurogenic examination (NE). However, they must have enough positive rate with levels which should be decompressed at first. The study aimed to confirm that the positive of DTI and PM is enough in levels which should be decompressed in lumbar spinal stenosis.
  
  
  METHODS
  The study analyzed the positive of DTI and PM as well as compared the preoperation scores to the postoperation scores, which were assessed preoperatively and at 2 weeks, 3 months 6 months, and 12 months postoperatively.
  
  
  RESULTS
  96 patients underwent the single level decompression surgery. The positive rate among PM, DTI, and (PM or DTI) was 76%, 98%, 100%, respectively. All post-operative Oswestry Disability Index (ODI), visual analog scale for back pain (VAS-BP) and visual analog scale for leg pain (VAS-LP) scores at 2 weeks postoperatively were measured improvement than the preoperative ODI, VAS-BP and VAS-LP scores with statistically significance (p-value = 0.000, p-value = 0.000, p-value = 0.000, respectively).
  
  
  CONCLUSIONS
  In degenetive lumbar spinal stenosis, the positive rate of (DTI or PM) is enough in levels which should be decompressed, thence using the PM and DTI to determine decompression levels will not miss the level which should be operated.
authors.affiliation: Departments of Orthopaedic, First Affiliated Hospital, Guangzhou Medical University, 151 Yanjiang Road, Guangzhou 510120, People's Republic of China. Electronic address: 787179139@qq.com.
authors.forename: Hua-Biao
authors.initials: HB
authors.lastname: Chen
authors.affiliation: Departments of Radiology, First Affiliated Hospital, Guangzhou Medical University, 151 Yanjiang Road, Guangzhou 510120, People's Republic of China. Electronic address: zhongzhiwei79213@163.com.
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Zhong
authors.affiliation: Departments of Radiology, First Affiliated Hospital, Guangzhou Medical University, 151 Yanjiang Road, Guangzhou 510120, People's Republic of China. Electronic address: xinchunli@163.com.
authors.forename: Chun-Sheng
authors.initials: CS
authors.lastname: Li
authors.affiliation: Departments of Orthopaedic, First Affiliated Hospital, Guangzhou Medical University, 151 Yanjiang Road, Guangzhou 510120, People's Republic of China; Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials, First Affiliated Hospital, Guangzhou Medical University, 151 Yanjiang Road, Guangzhou 510120, People's Republic of China. Electronic address: 18620941118@163.com.
authors.forename: Bo
authors.initials: B
authors.lastname: Bai
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019299:Decompression, Surgical; D056324:Diffusion Tensor Imaging; D004576:Electromyography; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination; D011237:Predictive Value of Tests; D013130:Spinal Stenosis / Q000000981:diagnostic imaging* / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult