Izvorni znanstveni članak
Traumatic Knee Evaluation with 0.2T MRI
F. Jelavić-Kojić
I. Kerner
I. Bojanić
M. Pećina
M. Marotti
Z. Sučić
Sažetak
The possibilities of MR diagnosing knee pathology on high field scanners of 1T and 1.5T are well known. A sensitivity of 87%-100% and specificity of 64%-100% in diagnosing meniscal pathology are quoted in the literature. The aim of this work was to define the sensitivity and specificity of evaluation of meniscal lesions and cruciate ligament tears with a 0.2T permanent magnet of low field strength, as well as of other associated lesions of the bone, cartilage and collateral ligaments. We wished to estimate the value of particular sequences and projections of scanning chosen for certain pathology, and to recommend the type of scanning. MR findings were correlated with arthroscopy as the "gold standard method" in evaluating knee pathology. Two radiologists of different clinical experience interpreted MR findings by the principle of "interobserver difference". A total of 40 patients were examined, 32 men and 8 women, aged 17-46, mean age 27±5 years. The following sequences were used always in three projections: SE 1500/38; SE 1500/25; SE 1700/40; SE 200/38; SR 550/25; SR 550/38; GE 100/23/45; GE 100/23/60; and GE 500/23/40. We conclude that low field MRI is as sensitive and specific as diagnostic arthroscopy for traumatic meniscal lesions, yet better due to its noninvasiveness. MRI 0.2 T is of a lower specificity and sensitivity in detecting anterior cruciate ligament and chondral lesions in comparison with arthroscopy.
Ključne riječi
Hrčak ID:
14776
URI
Datum izdavanja:
10.6.2002.
Posjeta: 2.172 *