This is the classic finding of a persistent left superior vena cava.
这是典型的永存左位上腔静脉。
Objective To study the ultrasonic feature of persistent left superior vena cava and its clinic value.
目的探讨永存左上腔静脉的超声表现及临床意义。
Fig 6 Case 15. Persistent left superior vena cava, the communicating branch between the bilateral superior vena cava.
图6病例15，永存左上腔静脉，双侧上腔静脉间见交通支。
Most people who survive acute encephalitis make a full recovery, but around 20% are left with residual neurological consequences such as persistent convulsions and personality changes.
大多数急性脑炎幸存者可以完全康复，但约20%会留下残余的神经后果，如持续惊厥和人格改变。
He says his batteries were dying left and right and audio was a persistent problem in the early half of the race.
他说他的电池经常死机，在早些比赛的前一半还有持续的音频问题。
A total of 232 consecutive patients with paroxysmal or persistent atrial fibrillation who were candidates for radiofrequency left atrial catheter ablation were included in the study.
试验连续性纳入232例适于左房经导管射频消融治疗的阵发性或持续性房颤患者。
Across the bottom you'll find persistent controls for playback, song position, and a set of three ICONS in the lower left for devices, CDs, and playlist creation.
在底部你会发现持续控制播放，歌曲的位置，并设置了三个图标中的设备，光盘左下角，和播放列表的创建。
Only the sword inclined on the left of the saddle known that: the hand held on this hilt - how firm and persistent it should be.
也只有斜挂在马鞍左侧的长剑才知道：握着这只剑柄的手——本应是怎样的坚定执着。
Persistent hypoglossal artery (PPHA) is the second most common carotid-vertebrobasilar anastomosis, with an estimated prevalence of 0.02%–0.1%, with 65% of them being left-sided.
永存舌下动脉（PPHA）是第二常见的颈动脉-椎基底动脉异常吻合，发病率约为0.02%-1%，其中约65%发生在左侧。
Persistent hypoglossal artery (PPHA) is the second most common carotid-vertebrobasilar anastomosis, with an estimated prevalence of 0.02%–0.1%, with 65% of them being left-sided.
永存舌下动脉（PPHA）是第二常见的颈动脉-椎基底动脉异常吻合，发病率约为0.02%-1%，其中约65%发生在左侧。
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