Upright magnetic resonance imaging for evaluation of lateral recess stenosis of the lumbar spine

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00013292

Enrollment

Registered

2017-11-10

Start date

2017-11-13

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

M48.06 M54.3

Interventions

Group 1: Upright MRI in an open, tilting MRI scanner (Esaote G-scan). The upright MRI will be performed after standard MRI in supine position and before the scheduled myelography.

Eligibility

Sex/Gender

All

Age

18 Years to 90 Years

Inclusion criteria

Inclusion criteria: - Leg pain, aggravating under axial loading (in upright position e.g. standing, walking) - inconclusive standard MRI in supine position and therefor indication for conventional myelographie

Exclusion criteria

Exclusion criteria: Absent indication for conventional myelography; S.p. lumbar spondylodesis; Contraindication for MRI: (cardiac pace maker, defibrillator, LVAD-device cochlea implant, ferromagnetic material); BMI>30kg/m2; claustrophobia

Design outcomes

Primary

Measure	Time frame
A) Extent of lateral recess stenosis Measurement of the lateral recess in axial MRI slices in anterior-posterior direction. Soft tissue or bony edges are defined as borders. Measurements in the relevant nerve root level are performed in all slices depicting the affected nerve root in the lateral recess. Measurements are performed in the standard MRI in supine position, in the upright MRI and in the myelography respectively. B) Quantitative evaluation of contrast and signal to noise ratio in the Upright MRI. Qualitative evaluation of image quality using a 4-grade scale. Image evaluation is performed by two experienced neuroradiologists.	—

Measure

Time frame

A) Extent of lateral recess stenosis Measurement of the lateral recess in axial MRI slices in anterior-posterior direction. Soft tissue or bony edges are defined as borders. Measurements in the relevant nerve root level are performed in all slices depicting the affected nerve root in the lateral recess. Measurements are performed in the standard MRI in supine position, in the upright MRI and in the myelography respectively. B) Quantitative evaluation of contrast and signal to noise ratio in the Upright MRI. Qualitative evaluation of image quality using a 4-grade scale. Image evaluation is performed by two experienced neuroradiologists.

—

Countries

Germany

Contacts

Public ContactFlorian Volz

Universitätsklinikum Freiburg

florian.volz@uniklinik-freiburg.de+49 761 270 50010

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026