[Application value of FS-3D-FISP sequence in the diagnosis of ankle cartilage injury].
OBJECTIVE
To compare several sequences of MRI and arthroscopy for detecting the ankle articular cartilage lesions and to evaluate the clinical outcome of special sequence of FS-3D-FISP.


METHODS
Forty patients (41 ankles) with iterative ankle pain who were scheduled for arthroscopy underwent MR scanning, including FS-3D-FISP, FSE T2WI and FSE PDWI sequences. The results of each sequence were then compared with the arthroscopic findings.


RESULTS
Using arthroscopic results as the standard of reference, the FS-3D-FISP images had the higher sensitivity (92.86%) than the other two sequences. The FS-3D-FISP sequence was well consistent with the result of arthroscopy. Kappa value (0.7590) was higher than the other two sequences (P < 0.01).


CONCLUSIONS
As a favorable scanning sequence, FS-3D-FISP imaging can show the early-stage pathological changes of articular cartilage and it has an excellent correlation with the arthroscopic findings. A 3-D reconstruction is helpful to determine the location and the degree of lesion and obtain a more accurate classification to guide clinical decisions.
Zhao
Chen
C
Department of Orthopedics, Zhejiang Provincial People's Hospital, Hangzhou 310014, China.
Bi
Qing
Q
Xia
Bing
B
Di
Xing-bo
XB
Zhu
Dan-jie
DJ
Zheng
Jie
J
Hong
Jian-fei
JF
Qiu
Bin-song
BS
Zhang
Shui-jun
SJ
Gu
Hai-feng
HF
D000328:Adult; D000843:Ankle Joint / Q000473:pathology; D001182:Arthroscopy; D002357:Cartilage Diseases / Q000175:diagnosis*; D002358:Cartilage, Articular / Q000473:pathology*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity