[Examination of the hand and wrist joints with a dedicated low-field MRI device]

Radiologe. 1997 Oct;37(10):785-93. doi: 10.1007/s001170050283.
[Article in German]

Abstract

Purpose of this study was to evaluate the diagnostic value of a low field dedicated MRI system in hand and wrist imaging. All 308 exams of the hand and wrist, that were performed on a low-field dedicated MRI system (Artoscan, Esaote Biomedica, Italy) in our institution in 1996, and high-field MRI exams performed in addition as part of the diagnostic work-up, were evaluated and correlated to final operative (n = 64) and histologic (n = 12) reports. 90% of all low-field MRI scans stated a diagnosis according to clinical suspicion. In 62% the clinical question was answered, and in 26% additional pathologies were identified. An MR-diagnosis completely different from the clinical suspicion was stated in 2%. High field exams contributed additional information in 6 of 36 patients. In 3 patients a tumor was not shown completely in the limited field-of-view of the dedicated low-field MRI-system. Frequency-selective fat-suppression pulse sequences and a better spatial resolution were the reasons for the additional information obtained in the other three patients. Low-field dedicated MR-imaging is a valuable method in the extensive work-up of the hand and wrist. Osseous, ligamentous and tendinous pathologies are well depicted. Large or infiltrative tumors should be referred to a high-field system.

Publication types

  • English Abstract

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Arthritis, Rheumatoid / diagnosis*
  • Bone Neoplasms / diagnosis
  • Child
  • Child, Preschool
  • Equipment Design
  • Female
  • Hand / pathology
  • Hand Injuries / diagnosis*
  • Humans
  • Image Enhancement / instrumentation
  • Infant
  • Magnetic Resonance Imaging / instrumentation*
  • Male
  • Middle Aged
  • Sensitivity and Specificity
  • Soft Tissue Neoplasms / diagnosis
  • Wrist Injuries / diagnosis*
  • Wrist Joint / pathology