【摘要】：目的比較MR三維穩(wěn)態(tài)采集快速成像序列(3D-FIESTA)、三維擾相梯度回波序列(3D-FS-SPGR)和三維快速自旋回波脈沖序列(3D-FSE-CUBE)對(duì)踝關(guān)節(jié)的顯示情況。方法對(duì)51例(共59側(cè))足踝疼痛患者行3.0T MR檢查,掃描序列為常規(guī)SE T1WI,FSE T2WI序列,以及三維容積采集序列、包括3D-FIESTA,3D-FS-SPGR和3D-FSE-CUBE。掃描完成后對(duì)所有三維序列進(jìn)行重建,測(cè)量并比較各序列踝關(guān)節(jié)圖像上,軟骨、軟骨下骨、肌肉及滑膜液的SNR及CNR。結(jié)果 13D-FIESTA,3D-FS-SPGR和3D-FSE-CUBE序列均可對(duì)踝關(guān)節(jié)進(jìn)行任意方位重建,踝關(guān)節(jié)肌腱及韌帶顯示良好。2SNR:軟骨SNR在3D-FS-SPGR序列中最高,其次為3D-FIESTA,二者差異無統(tǒng)計(jì)學(xué)意義(P=0.719);軟骨下骨SNR在3D-FIESTA序列中最高,3D-FS-SPGR和3D-FSE-CUBE序列的差異無統(tǒng)計(jì)學(xué)意義(P=0.424);滑膜液SNR在3D-FIESTA序列中最高,但與3D-FSE-CUBE序列的差異無統(tǒng)計(jì)學(xué)意義(P=0.98);肌肉兩兩序列分別進(jìn)行比較,差異均有統(tǒng)計(jì)學(xué)意義(P均0.05)。3CNR:3D-FIESTA序列中軟骨/軟骨下骨CNR最高,其次為3D-FS-SPGR,軟骨/滑液、肌肉/滑液在3D-FIESTA和3D-FSE-CUBE序列中較高,二者差異均無統(tǒng)計(jì)學(xué)意義(P均0.05)。結(jié)論 3D-FS-SPGR及3D-FIESTA具有較高的軟骨SNR及與相鄰組織間CNR,是評(píng)估踝關(guān)節(jié)復(fù)雜解剖結(jié)構(gòu)的理想方法。
[Abstract]:Objective to compare the display of ankle joint with three dimensional steady state acquisition fast imaging sequence (3D-FIESTA), three dimensional disturbing phase gradient echo (3D-FS-SPGR) and three dimensional fast spin echo pulse sequence (3D-FSE-CUBE). Methods 51 patients (59 sides) with ankle pain were examined with 3.0T MR. The scanning sequence was routine SE T1WISE T2WI sequence and 3D volume acquisition sequence, including 3D-FIESTAS 3D-FS-SPGR and 3D-FSE-CUBE. After scanning, all 3D sequences were reconstructed, and the SNR and CNR. of the ankle images, subchondral bone, muscle and synovial fluid were measured and compared. Results both 13D-FIESTAR 3D-FS-SPGR and 3D-FSE-CUBE sequence could reconstruct the ankle joint in any direction. The tendon and ligament of ankle joint showed well. 2SNR: SNR of cartilage was the highest in 3D-FS-SPGR sequence. The second was 3D-FIESTA.There was no significant difference between the two groups (P0. 719), there was no significant difference between 3D-FS-SPGR and 3D-FSE-CUBE sequence in subchondral bone SNR sequence (P0. 424), and SNR in synovial fluid was the highest in 3D-FIESTA sequence. But there was no significant difference with 3D-FSE-CUBE sequence (P0. 98), and there was significant difference in muscle sequence (P 0. 05). 3CNR: 3D-FIESTA sequence showed that CNR of cartilage / subchondral bone was the highest, followed by 3D-FS-SPGR, cartilage / synovial fluid, 3D-FS-SPGR, 3D-FS-SPGR, 3D-FS-SPGR, 3D-FS-SPGRand synovial fluid respectively. The ratio of muscle / synovial fluid was higher in 3D-FIESTA and 3D-FSE-CUBE sequences, and there was no significant difference between them (P < 0. 05). Conclusion 3D-FS-SPGR and 3D-FIESTA have higher SNR of cartilage and CNR, between adjacent tissues is an ideal method for evaluating complex anatomical structure of ankle joint.
【作者單位】： 武漢市第一醫(yī)院放射科;
【分類號(hào)】：R445.2;R681.8

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