19 Harley St, London, W1G 9QJ, UK

Clinical applications of diffusion magnetic resonance imaging of the lumbar foraminal nerve root entrapment

Diffusion-weighted imaging (DWI) can provide valuable structural information about tissues that may be useful for clinical applications in evaluating lumbar foraminal nerve root entrapment. Our purpose was to visualize the lumbar nerve root and to analyze its morphology, and to measure its apparent diffusion coefficient (ADC) in healthy volunteers and patients with lumbar foraminal stenosis using 1.5-T magnetic resonance imaging. Fourteen patients with lumbar foraminal stenosis and 14 healthy volunteers were studied. Regions of interest were placed at the fourth and fifth lumbar root at dorsal root ganglia and distal spinal nerves (at L4 and L5) and the first sacral root and distal spinal nerve (S1) on DWI to quantify mean ADC values. The anatomic parameters of the spinal nerve roots can also be determined by neurography. In patients, mean ADC values were significantly higher in entrapped roots and distal spinal nerve than in intact ones. Neurography also showed abnormalities such as nerve indentation, swelling and running transversely in their course through the foramen. In all patients, leg pain was ameliorated after selective decompression (n = 9) or nerve block (n = 5). We demonstrated the first use of DWI and neurography of human lumbar nerves to visualize and quantitatively evaluate lumbar nerve entrapment with foraminal stenosis. We believe that DWI is a potential tool for diagnosis of lumbar nerve entrapment

Keywords : abnormalities,Adult,Aged,Case-Control Studies,Decompression,Surgical,diagnosis,Diffusion,Diffusion Magnetic Resonance Imaging,Female,Humans,Leg,Lumbar Vertebrae,Magnetic Resonance Imaging,Male,methods,Middle Aged,Nerve Block,Nerve Compression Syndromes,Pain,pathology,Patients,Spinal Nerve Roots,Spinal Nerves,surgery,Treatment Outcome,, Applications,Diffusion,Magnetic,Resonance, trigger point injection medications

Date of Publication : 2010 Nov

Authors : Eguchi Y;Ohtori S;Yamashita M;Yamauchi K;Suzuki M;Orita S;Kamoda H;Arai G;Ishikawa T;Miyagi M;Ochiai N;Kishida S;Masuda Y;Ochi S;Kikawa T;Takaso M;Aoki Y;Toyone T;Suzuki T;Takahashi K;

Organisation : Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan. yawara_eguchi@yahoo.co.jp

Journal of Publication : Eur Spine J

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/20632042

The London Spine Unit : Harley Street UK. Specialists in Cutting Edge Technologies for Spinal Surgery

Make an Appointment 

Trustpilot Reviews
Doctify Reviews
Top Doctor Reviews

Clinical applications of diffusion magnetic resonance imaging of the lumbar foraminal nerve root entrapment | Back pain center london

What our patients say ...

Consultant Spine Surgeon
Consultant Spine Surgeon
Consultant Spine Surgeon

This surgical technique consists of a percutaneous approach for the treatment of small to medium size hernias of the intervertebral disc by laser energy. The main objective is to reduce the intradiscal pressure in the nucleus pulposus

Laser Disc Surgery can be performed under local anaesthetic as a day case at our centre on the prestigious Harley Street.
What is London spine unit and How it Works

The London Spine Unit was established in 2005 and has successfully treated over 5000 patients. All conditions are treated.

treatment of all spinal disorders

The London Spine Unit specialises in Minimally Invasive Treatments allowing rapid recovery and return to normal function

Trusted by patients worldwide

The London Spine Unit provides the highest quality care to all patients and has VIP services for those seeking exceptional services

If you have any emergency Doctor’s need, simply call our 24 hour emergency

Your personal case manager will ensure that you receive the best possible care.

Call Now 

+44 844 589 2020
+44 203 973 8810