海绵状血管瘤(Cavernous Hemangioma,CH)是一种先天性静脉畸形,可发生在身体的任何部位,常见于肝脏、皮肤,罕见于纵隔。纵隔海绵状血管瘤(Cavernous Hemangioma in Mediastinum,CHM)常见于前纵隔,临床表现缺乏特异性。对于前纵隔的CHM...海绵状血管瘤(Cavernous Hemangioma,CH)是一种先天性静脉畸形,可发生在身体的任何部位,常见于肝脏、皮肤,罕见于纵隔。纵隔海绵状血管瘤(Cavernous Hemangioma in Mediastinum,CHM)常见于前纵隔,临床表现缺乏特异性。对于前纵隔的CHM主要采用胸腔镜进行肿块完全切除,患者预后良好。我院收治前上纵隔海绵状血管瘤1例,对其影像表现结合相关文献进行复习,以提高影像医师对该疾病的诊断水平。展开更多
Through a simple review of low-frequency variation of blocking pattern and diagnoses of observational data and combining some experience in forecast practice,we put forward some thought about the mechanism of formatio...Through a simple review of low-frequency variation of blocking pattern and diagnoses of observational data and combining some experience in forecast practice,we put forward some thought about the mechanism of formation and maintenance of the blocking flow pattern from the synoptic/climatological point of view,It is emphasized that eastward moving and deepening of troughs in the upstream of the blocking high,the SST anomalies and topography effect are the main factors of impelling the variation of the blocking high.During the maintenance of Ural blocking high wave-flow interactions are studied through disposition of baroclinic trough(transient wave)and the blocking flow.This study will offer a primary basis for the further theoretical study on the formation mechanism of the blocking high.展开更多
文摘海绵状血管瘤(Cavernous Hemangioma,CH)是一种先天性静脉畸形,可发生在身体的任何部位,常见于肝脏、皮肤,罕见于纵隔。纵隔海绵状血管瘤(Cavernous Hemangioma in Mediastinum,CHM)常见于前纵隔,临床表现缺乏特异性。对于前纵隔的CHM主要采用胸腔镜进行肿块完全切除,患者预后良好。我院收治前上纵隔海绵状血管瘤1例,对其影像表现结合相关文献进行复习,以提高影像医师对该疾病的诊断水平。
基金National Natural Science Foundation of China under Grant No.49675257.
文摘Through a simple review of low-frequency variation of blocking pattern and diagnoses of observational data and combining some experience in forecast practice,we put forward some thought about the mechanism of formation and maintenance of the blocking flow pattern from the synoptic/climatological point of view,It is emphasized that eastward moving and deepening of troughs in the upstream of the blocking high,the SST anomalies and topography effect are the main factors of impelling the variation of the blocking high.During the maintenance of Ural blocking high wave-flow interactions are studied through disposition of baroclinic trough(transient wave)and the blocking flow.This study will offer a primary basis for the further theoretical study on the formation mechanism of the blocking high.