Wrist protocol (MRI)

Andrew Murphy and Dr Joachim Feger et al.

The MRI wrist protocol encompasses a set of MRI sequences for the routine assessment of the wrist joint.

Note: This article aims to frame a general concept of an MRI protocol for the assessment of the wrist. Protocol specifics will vary depending on MRI scanner type, specific hardware and software, radiologist and perhaps referrer preference, patient factors e.g. implants, specific indications and time constraints

Typical indications include radial- or ulnar sided wrist pain decreased range of motion a lump or nerve-related pathologies including:

Musculoskeletal examinations are generally done on both 1.5 and 3 tesla. In particular, the examination of the wrist profits from the improved spatial and contrast resolution of 3 tesla. Postoperative examinations in patients with metallic implants, however, should be done on 1.5 tesla with metal artifact reduction sequence.

There are several options:

  • the patient in a prone position with the arm in an overhead and elevated position and the elbow joint in pronation (superman position)
  • the patient is supine with the arm adducted close to the hip in mild supination

A disadvantage of the superman position is that it is uncomfortable for the patient and possible advantages in fat saturation due to the wrist being in the center of the magnet might be mitigated by movement artefacts.

The hand of the patient should be positioned with the middle finger being in axis with the forearm.

Multi-phased-array coils are recommended.

  • flexible small extremity coil
  • in-plane spatial resolution: ≤ 0.3 x 0.3 mm
  • field of view (FOV): 80-120 mm
  • slice thickness: ≤3 mm to ≤2 mm depending on the plane
  • axial images:
    • angulation: perpendicular to the forearm-3rd metacarpal axis and fairly parallel to radiocarpal joint
    • volume: depends on the specific question
    • slice thickness: ≤3 mm with a gap of 10%
  • coronal images:             
    • angulation:  parallel to the forearm and metacarpal bones
    • volume: entire wrist from skin to skin
    • slice thickness: ≤2,5 mm without a gap
  • sagittal images:
    • angulation: in the axis of the forearm and the 3rd metacarpal bone, perpendicular to the coronal images and the radiocarpal joint
    • volume: includes distal humeral metaphysis above the epicondyles and radial tuberosity
    • slice thickness: ≤2,5 mm with a gap of 10%
  • 3D images (optional)
    • angulation: coronal
    • spatial resolution: isotropic ≤0.7 mm
  • axial oblique images*: to depict the lunotriquetral ligament anatomy
  • double oblique coronal-sagittal images*: for better depiction of the scaphoid bone

The mainstay in musculoskeletal imaging are water-sensitive sequences, this can be achieved with conventional STIR or fat-saturated images or with intermediate-weighted images.

At least one T1-weighted sequence should be included to ease the assessment and interpretation of bone marrow and/or soft tissue lesions.

  • intermediate-weighted (fat-saturated)​
    • purpose: bone and/or soft-tissue characterization and detailed anatomy of radiocarpal and intercarpal ligaments as well as the triangular fibrocartilage complex
    • technique: IM fast spin echo
    • planes: coronal, axial, sagittal* (option e.g. scaphoid fracture/non-union or tendinopathy)
  • T1 weighted
    • purpose: bone and/or soft-tissue characterization
    • technique:  T1 fast spin echo
    • planes: coronal, axial* (option in nerve-related disorders or tumors)
  • T2 weighted
    • purpose: bone and/or soft-tissue characterization, in particular in tumors or nerve disorders
    • technique: T2 FS fast spin echo
    • planes: sagittal* (optional)
  • 3D images
  • T1 weighted C+ (fat-saturated)
    • purpose: for better characterization of ligament and TFCC injury, in case of a suspected tumor, inflammatory conditions or nerve-related disorders
    • technique:  T1 fast spin echo
    • planes: coronal, sagittal, axial depending on the pathology

(*) indicates optional planes

  • the protocol can and should be tailored to the specific indication or clinical question
  • most indications for an MRI of the wrist benefit from contrast media 
  • there are however few indications as an acute trauma or the depiction of a ganglion, where contrast media is not necessary
  • in case of suspected De Quervain tenosynovitis, or  intersection syndrome the coronal and sagittal images might require an increased field of view towards the forearm, and the axial stack might need to be increased in that direction in order to picture the location of the first and second extensor compartment intersection
  • the examination will benefit if every plane is imaged
  • a typical native protocol will contain 4-5 sequences
Imaging in practice

Article information

rID: 80421
Synonyms or Alternate Spellings:
  • MRI protocol: wrist
  • MRI wrist protocol

ADVERTISEMENT: Supporters see fewers/no ads

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.