Objective: to investigate whether MR 3D-FSE Cube sequence imaging is superior to traditional 2 D-FSE sequence imaging in the diagnosis of space occupying lesions in saddle area. Methods: From January 2018 to January 2...Objective: to investigate whether MR 3D-FSE Cube sequence imaging is superior to traditional 2 D-FSE sequence imaging in the diagnosis of space occupying lesions in saddle area. Methods: From January 2018 to January 2020, data of 106 patients with space-occupying lesions in saddle area confirmed by surgery and pathology were collected, Routine 2 D-FSE sequence and 3 D-FSE Cube sequence scans were performed in all patients before operation. Analysis of MRI images by two radiologists over 10 years of service, and the two sequences were independently diagnosed, based on surgical and pathological findings, the diagnostic results were statistically analyzed. Results: according to conventional 2 D-FSE sequence images and 3 D-FSE Cube sequence images, the diagnostic accuracy was 70.7%(75/106) and 84.9%(90/106), difference was statistically significant (P<0.05). Conclusion: MR 3D-FSE Cube sequence imaging is superior to traditional 2 D-FSE in the qualitative diagnosis of space occupying lesions in saddle area, it is worth popularizing in clinical application.展开更多
目的以关节镜检查结果为对照,比较三维稳态采集快速成像序列(3D FIESTA)和常规序列在诊断前交叉韧带(ACL)损伤中的准确性。资料与方法对50例患者的55个外伤膝关节行常规MRI(SET1WI,FSEPD/T2WI)和3D FIESTA序列扫描。依据MRI图像表现将AC...目的以关节镜检查结果为对照,比较三维稳态采集快速成像序列(3D FIESTA)和常规序列在诊断前交叉韧带(ACL)损伤中的准确性。资料与方法对50例患者的55个外伤膝关节行常规MRI(SET1WI,FSEPD/T2WI)和3D FIESTA序列扫描。依据MRI图像表现将ACL损伤分级,分析比较上述序列对ACL损伤诊断的敏感性、特异性、准确性和Kappa值。结果 3D FIESTA诊断ACL损伤的敏感性、特异性、准确性和Kappa值均较常规序列高,分别为94.6%、77.8%、89.1%、0.745。结论 3D FIESTA序列图像采集时间短,显示ACL损伤的准确率高,是常规膝关节序列检查的补充。展开更多
目的对比各向同性三维快速自旋回波(3 dimensional fast spin echo,3D-FSE)和三维快速场回波(3 dimensional fast field echo,3D-FFE)及二维快速自旋回波(2 dimensional fast spin echo,2D-FSE)对踝关节解剖结构显示的特点。方法随机选1...目的对比各向同性三维快速自旋回波(3 dimensional fast spin echo,3D-FSE)和三维快速场回波(3 dimensional fast field echo,3D-FFE)及二维快速自旋回波(2 dimensional fast spin echo,2D-FSE)对踝关节解剖结构显示的特点。方法随机选10名志愿者进行各向同性3D-FSE、3D-FFE及2D-FSE序列磁共振扫描以及三维重建,并测量各组织的信噪比(signal-to-noise ratio,SNR)、对比信噪比(contrast-to-noise ratio,CNR),用5分利克特表(5-point Likert scale)评估各序列各组织的成像质量。结果在各组织中的3D-FSE序列SNR最高,在软骨、肌肉、肌腱中其次为3D-FFE序列;软骨-骨髓、肌肉-肌腱、关节液-肌腱中的3DFSE的CNR最高,其次为3D-FFE,各序列间具有统计学差异(P<0.05)。主观评估三种序列踝关节软骨的成像质量,各序列间有统计学差异(P<0.05),3D-FFE成像质量最好,其次为3D-FSE。主观评估韧带中3D-FSE、2D-FSE序列均优于3D-FFE序列(P<0.05);主观评估肌腱中,除腓短肌腱外,其余肌腱都有统计学差异(P<0.05),且都是3D-FSE成像质量最好,其次为2D-FSE序列。结论各向同性3D-FSE序列具有最高的SNR、CNR,能任意平面重建,扫描时间短,可全面评估复杂关节的解剖结构,广泛应用临床。展开更多
文摘Objective: to investigate whether MR 3D-FSE Cube sequence imaging is superior to traditional 2 D-FSE sequence imaging in the diagnosis of space occupying lesions in saddle area. Methods: From January 2018 to January 2020, data of 106 patients with space-occupying lesions in saddle area confirmed by surgery and pathology were collected, Routine 2 D-FSE sequence and 3 D-FSE Cube sequence scans were performed in all patients before operation. Analysis of MRI images by two radiologists over 10 years of service, and the two sequences were independently diagnosed, based on surgical and pathological findings, the diagnostic results were statistically analyzed. Results: according to conventional 2 D-FSE sequence images and 3 D-FSE Cube sequence images, the diagnostic accuracy was 70.7%(75/106) and 84.9%(90/106), difference was statistically significant (P<0.05). Conclusion: MR 3D-FSE Cube sequence imaging is superior to traditional 2 D-FSE in the qualitative diagnosis of space occupying lesions in saddle area, it is worth popularizing in clinical application.
文摘目的以关节镜检查结果为对照,比较三维稳态采集快速成像序列(3D FIESTA)和常规序列在诊断前交叉韧带(ACL)损伤中的准确性。资料与方法对50例患者的55个外伤膝关节行常规MRI(SET1WI,FSEPD/T2WI)和3D FIESTA序列扫描。依据MRI图像表现将ACL损伤分级,分析比较上述序列对ACL损伤诊断的敏感性、特异性、准确性和Kappa值。结果 3D FIESTA诊断ACL损伤的敏感性、特异性、准确性和Kappa值均较常规序列高,分别为94.6%、77.8%、89.1%、0.745。结论 3D FIESTA序列图像采集时间短,显示ACL损伤的准确率高,是常规膝关节序列检查的补充。
文摘目的对比各向同性三维快速自旋回波(3 dimensional fast spin echo,3D-FSE)和三维快速场回波(3 dimensional fast field echo,3D-FFE)及二维快速自旋回波(2 dimensional fast spin echo,2D-FSE)对踝关节解剖结构显示的特点。方法随机选10名志愿者进行各向同性3D-FSE、3D-FFE及2D-FSE序列磁共振扫描以及三维重建,并测量各组织的信噪比(signal-to-noise ratio,SNR)、对比信噪比(contrast-to-noise ratio,CNR),用5分利克特表(5-point Likert scale)评估各序列各组织的成像质量。结果在各组织中的3D-FSE序列SNR最高,在软骨、肌肉、肌腱中其次为3D-FFE序列;软骨-骨髓、肌肉-肌腱、关节液-肌腱中的3DFSE的CNR最高,其次为3D-FFE,各序列间具有统计学差异(P<0.05)。主观评估三种序列踝关节软骨的成像质量,各序列间有统计学差异(P<0.05),3D-FFE成像质量最好,其次为3D-FSE。主观评估韧带中3D-FSE、2D-FSE序列均优于3D-FFE序列(P<0.05);主观评估肌腱中,除腓短肌腱外,其余肌腱都有统计学差异(P<0.05),且都是3D-FSE成像质量最好,其次为2D-FSE序列。结论各向同性3D-FSE序列具有最高的SNR、CNR,能任意平面重建,扫描时间短,可全面评估复杂关节的解剖结构,广泛应用临床。
