Assessment of reduced field of view in diffusion tensor imaging of the lumbar nerve roots at 3 T

Budzik, Jean-François; Verclytte, Sébastien; Lefebvre, G.; Monnet, Aurélien; Forzy, G.; Cotten, Anne

doi:10.1007/s00330-012-2710-0

Cited by 41 publications

(40 citation statements)

References 18 publications

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“…Except for one continued. article 7) (which showed low ADC), 9 articles [9][10][11]13,15,16,22,23,29) described high ADC in involved nerves and 5 articles demonstrated findings of ADC in healthy subjects 8,18,[24][25][26] . In an asymptomatic case, FA increased and ADC decreased following compression of the nerve root without injury 21) .…”

Section: Measurement Of Dti Parametersmentioning

confidence: 99%

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Recent advances in magnetic resonance neuroimaging of lumbar nerve to clinical applications: A review of clinical studies utilizing Dffusion Tensor Imaging and Diffusion-weighted magnetic resonance neurography

Eguchi

Kanamoto

Oikawa³

et al. 2017

Spine Surg Relat Res

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Abstract:Much progress has been made in neuroimaging with Magnetic Resonance neurography and Diffusion Tensor Imaging (DTI) owing to higher magnetic fields and improvements in pulse sequence technology. Reports on lumbar nerve DTI have also increased considerably.Many studies have shown that the use of DTI in lumbar nerve lesions, such as lumbar foraminal stenosis and lumbar disc herniation, makes it possible to capture images of interruptions of tractography at stenotic sties, enabling the diagnosis of stenosis. DTI can also reveal significant decreases in fractional anisotropy (FA) with significant increases in apparent diffusion coefficient (ADC) values in compression lesions.FA values have higher accuracy than ADC values. Furthermore, strong correlations exist between FA values and indications of neurological severity, including the Japanese Orthopedic Association (JOA) score, the Oswestry Disability Index (ODI), and the Roland-Morris Disability Questionnaire (RDQ) in patients with lumbar disc herniation-induced radiculopathy.Most lumbar DTI has become 3T; 3T MRI has made it possible to take high-resolution DTI measurements in a short period of time. However, increased motion artifacts in the magnetic susceptibility effect lead to signal irregularities and image distortion. In the future, high-resolution DTI with reduced field-of-view may become useful in clinical applications, since visualization of nerve lesions and quantification of DTI parameters could allow more accurate diagnoses of lumbar nerve dysfunctions. Future translational studies will be necessary to successfully bring MR neuroimaging of lumbar nerve into clinical use.

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Section: Measurement Of Dti Parametersmentioning

confidence: 99%

“…7 post mortem subjects were investigated in one article 8) . 201 healthy volunteers were also investigated in 15 articles 8,11,14,[16][17][18][19][22][23][24][25][26][28][29][30] .…”

Section: Diffusion-weighted Mr Neurographymentioning

confidence: 99%

Recent advances in magnetic resonance neuroimaging of lumbar nerve to clinical applications: A review of clinical studies utilizing Dffusion Tensor Imaging and Diffusion-weighted magnetic resonance neurography

Eguchi

Kanamoto

Oikawa³

et al. 2017

Spine Surg Relat Res

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“…Derived parameters from DWN or DTN, such as ADC or FA, have proved its usefulness to identify the involved lumbar nerve roots in cases of lumbar pain (57,58). An increase in ADC and a significant decrease in FA of compressed nerve roots compared with contralateral ones are detected in cases of symptomatic lumbar disk disease.…”

Section: A B D Cmentioning

confidence: 99%

Quantitative magnetic resonance (MR) neurography for evaluation of peripheral nerves and plexus injuries

Noguerol¹,

Barousse²,

Socolovsky

et al. 2017

Quant. Imaging Med. Surg.

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Traumatic conditions of peripheral nerves and plexus have been classically evaluated by morphological imaging techniques and electrophysiological tests. New magnetic resonance imaging (MRI) studies based on 3D fat-suppressed techniques are providing high accuracy for peripheral nerve injury evaluation from a qualitative point of view. However, these techniques do not provide quantitative information. Diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI) are functional MRI techniques that are able to evaluate and quantify the movement of water molecules within different biological structures. These techniques have been successfully applied in other anatomical areas, especially in the assessment of central nervous system, and now are being imported, with promising results for peripheral nerve and plexus evaluation. DWI and DTI allow performing a qualitative and quantitative peripheral nerve analysis, providing valuable pathophysiological information about functional integrity of these structures.In the field of trauma and peripheral nerve or plexus injury, several derived parameters from DWI and DTI studies such as apparent diffusion coefficient (ADC) or fractional anisotropy (FA) among others, can be used as potential biomarkers of neural damage providing information about fiber organization, axonal flow or myelin integrity. A proper knowledge of physical basis of these techniques and their limitations is important for an optimal interpretation of the imaging findings and derived data. In this paper, a comprehensive review of the potential applications of DWI and DTI neurographic studies is performed with a focus on traumatic conditions, including main nerve entrapment syndromes in both peripheral nerves and brachial or lumbar plexus.

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“…Recently, the diffusion tensor imaging technique has been used for the structural and functional diagnosis of lumbar nerve damage before and after surgery. [19][20][21][22][23] Regarding surgical procedures, Cho et al [24] demonstrated that their floating technique reduces complications during PELD. In their series of 154 patients, none had ENR injury.…”

Section: Enr Injurymentioning

confidence: 99%

Anatomical relationship between Kambin’s triangle and exiting nerve root

Sakane¹

2017

MIS

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Assessment of reduced field of view in diffusion tensor imaging of the lumbar nerve roots at 3 T

Cited by 41 publications

References 18 publications

Recent advances in magnetic resonance neuroimaging of lumbar nerve to clinical applications: A review of clinical studies utilizing Dffusion Tensor Imaging and Diffusion-weighted magnetic resonance neurography

Recent advances in magnetic resonance neuroimaging of lumbar nerve to clinical applications: A review of clinical studies utilizing Dffusion Tensor Imaging and Diffusion-weighted magnetic resonance neurography

Quantitative magnetic resonance (MR) neurography for evaluation of peripheral nerves and plexus injuries

Anatomical relationship between Kambin’s triangle and exiting nerve root

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