The quantitative assessment value of the IDEAL-IQ sequence for knee osteoarthritis and surrounding soft tissue fat infiltration
10.3969/j.issn.1002-1671.2024.08.025
- VernacularTitle:IDEAL-IQ序列对膝骨关节炎膝周软组织脂肪浸润的定量评估价值
- Author:
Tianqi HAO
1
,
2
;
Yamei WANG
;
Guohua WANG
;
Yaqing YANG
;
Xiaoming HUANG
Author Information
1. 青岛市市立医院放射科,山东 青岛 266011
2. 大连医科大学研究生院,辽宁 大连 116044
- Keywords:
knee joint;
osteoarthritis;
infrapatellar fat pad;
fat fraction;
magnetic resonance imaging;
IDEAL-IQ
- From:
Journal of Practical Radiology
2024;40(8):1329-1333
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of measuring infrapatellar fat pad(IPFP)and muscle fat fraction(FF)around the knee joint based on iterative decomposition of water and fat with echo asymmetry and least squares estimation quantification(IDEAL-IQ)quantitative technology in patients with knee osteoarthritis(KOA)for the degree of KOA.Methods A total of 106 participants were included in this study.Participants were grouped based on Kellgren-Lawrence grading(KLG),divided into no KOA group,mild KOA group and severe KOA group.The IDEAL-IQ technology was used to measure FF values of IPFP and muscles around the knee joint,the correlation between FF values and KOA was analyzed,and its value in diagnosing KOA was evaluated.Results In severe KOA group and mild KOA group can be observed in the way of lower IPFP FF values and higher FF values muscles around the knee joint.The FF values of IPFP and part of the muscles around the knee joint[vastus medialis muscle(VM),vastus lateralis muscle(VL),semimembranosus(SE),sartorius(SA),medial head of gastrocnemius muscle(Gas(media)),lateral head of gastrocnemius muscle(Gas(lateral))]were correlated with the degree of KOA(r/rs=-0.708,0.737,0.567,0.468,0.280,0.491,0.378),the area under the curve(AUC)for diagnosing KOA were 0.850,0.950,0.842,0.759,0.692,0.763,and 0.725,respectively.Conclusion IDEAL-IQ sequence can quantitatively assess fat infiltration of IPFP and muscles around the knee joint in patients with KOA,and has certain potential to predict the development and severity of KOA.
