MRI wrist joint and the hand — that will show?
The use of MRI of the wrist joint for the diagnosis of traumatic injuries, chronic diseases and cancer is limited only to the high cost of research. None of the methods has inherent MRI unique combination of safety, noninvasiveness, and high information content.
The advantages of MRI of the wrist joint as a diagnostic method:
- For planning surgical interventions on the wrist joint.
Features magnetic resonance imaging of the brush
MRI of the hand performed on devices with high resolution (magnetic field strength of not less than 1 Tesla), otherwise to obtain the necessary information will not succeed. To scan could be to use a universal machine tunnel type or specialized scanner for the diagnosis of the joints. In the latter case, the inside of the machine will need to place only the investigated limb.
In the diagnosis of tumors, some traumatic and inflammatory diseases is considered to be more informative MRI wrist with contrast:
- Intravenous contrast used for MRI is the differential diagnosis of neoplastic processes. The ability of tumors to accumulate the contrast is judged on its nature origin.
- Intra-articular contrast (Mr arthrography) is used allows for the diagnosis of traumatic injuries and inflammatory changes. In this case, it becomes possible to obtain a clear image of the border of articular cartilage and effusion.
What are the joint disease can be diagnosed by MRI?
- Traumatic injuries: sprains, torn ligaments, wrist injuries and bone fractures. Including incomplete and hidden.
- Inflammatory diseases of joint, bone and synovium arthritis, synovitis, osteoarthritis.
- Degenerative processes in the tissues of the joints: arthritis and osteoarthritis.
- Anomalies in the structure of intra-articular elements.
- Tunnel syndrome of the hand.
- Cysts, benign and malignant neoplasms of the joint and surrounding tissues.
Preparation and contraindications to the study brush
MRI wrist without contrast enhancement does not require special preparation, contrast agent administration is performed only on an empty stomach. The presence of metallic implants in the study area makes scanning uninformative, as the metal is magnetized and gives interference.
Limitations in MRI of the hand may be associated with the presence of implanted electronic or magnetic device (artificial pacemakers, insulin pumps and cochlear implants), and not fixed metallic inclusions (clips of brain vessels, vascular stents, metallic foreign body in close proximity to critical anatomical structures). The question about the possibility of the study should be decided by the doctor individually.
MRI of wrist joint with contrast is contraindicated in pregnancy and the presence of Allergy to the drug. With the advent of specialized devices for MRI of the joints and high field scanners with open loop, made this study available to people with claustrophobia. If the patient suffers from pain in the region of the brush or of the joint, the scanning is carried out after anesthesia, to make it easier to keep your arm immobile.