UNASSIGNED: We conducted a cross-sectional study of BV and BT angles obtained by MRI performed at our center, in 22 fetuses with PFFC and 8 fetuses without PFFC to calculate both angles\' reproducibility and the correlation between them and the gestational age.
UNASSIGNED: We found good interobserver reproducibility for the BV, BT1 and BT2 angles (Intraclass correlation coefficient: 0.98; 0.89 and 0.88 for each of these angles, with p < 0.001). In patients with PFFC the BT angle could not always be measured. BT angle presented a positive relationship with gestational age (p = 0.002) but BV angle stayed stable. The measurements of BV, BT1, and BT2 angles can be reliably performed by MRI with good interobserver reproducibility.
UNASSIGNED: BV angle stays stable during pregnancy, whereas BT angle tends to augment with gestational age.
■我们对在我们中心进行的MRI获得的BV和BT角度进行了横断面研究,在22例使用PFFC的胎儿和8例未使用PFFC的胎儿中,计算两个角度的可重复性以及它们与胎龄之间的相关性。
■我们发现BV的观察者间重现性好,BT1和BT2角度(类相关系数:0.98;每个角度为0.89和0.88,p<0.001)。在PFFC患者中,无法始终测量BT角度。BT角与胎龄呈正相关(p=0.002),但BV角保持稳定。BV的测量,BT1和BT2角度可以通过MRI以良好的观察者间再现性可靠地执行。
■BV角度在怀孕期间保持稳定,而BT角倾向于随着胎龄增加。