| Autor: |
Nogueira-Barbosa MH; 1 Division of Radiology of the Internal Medicine Department, Ribeirao Preto School of Medicine-University of Sao Paulo, Ribeirao Preto, Brazil., Gregio-Junior E, Lorenzato MM, Guermazi A, Roemer FW, Chagas-Neto FA, Crema MD |
| Jazyk: |
angličtina |
| Zdroj: |
AJR. American journal of roentgenology [AJR Am J Roentgenol] 2015 Mar; Vol. 204 (3), pp. 584-8. |
| DOI: |
10.2214/AJR.14.12522 |
| Abstrakt: |
OBJECTIVE. The purpose of this article is to validate both semiquantitative and quantitative ultrasound assessment of medial meniscal extrusion using MRI assessment as the reference standard. SUBJECTS AND METHODS. Ninety-three consecutive patients with chronic knee pain referred for knee MRI were evaluated by ultrasound and MRI on the same day. Two musculoskeletal radiologists assessed meniscal extrusion on ultrasound and MRI separately and independently and graded it semiquantitatively as follows: 0 (< 2 mm), 1 (≥ 2 mm and < 4 mm), and 2 (≥ 4 mm). Agreement between the ultrasound and MRI evaluations was determined using weighted kappa statistics. Intraclass correlation coefficients were used to evaluate agreement using the absolute values of extrusion (quantitative assessment). We further evaluated the diagnostic performance of ultrasound for the detection of medial meniscal extrusion using MRI as the reference standard. RESULTS. For semiquantitative grading, agreement between ultrasound and MRI was moderate for reader 1 (κ = 0.57) and substantial for reader 2 (κ = 0.64). Substantial agreement was found for both readers (intraclass correlation coefficients, 0.73 and 0.70) when comparing quantitative assessment of meniscal extrusion between ultrasound and MRI. Ultrasound showed excellent sensitivity (95% and 96% for each reader) and good specificity (82% and 70% for each reader) in the detection of meniscal extrusion. CONCLUSION. Ultrasound assessment of meniscal extrusion is reliable and can be used for both quantitative and semiquantitative assessment, exhibiting excellent diagnostic performance for the detection of meniscal extrusion compared with MRI. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
