occlusion

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目探讨胰源性门静脉系节段性阻塞(PSOPS)CT征象。

Portal vein was invaded in 3 cases and presented as infiltration, stegnosis or occlusion of the vein.

肿瘤侵及门静脉3例，表现为门脉侧壁浸润、门脉缩窄或闭塞。

Objective To evaluate the long-term efficacy and complication of laser chorioretinal venous anastomosis (CRVA) for retinal vein occlusion (RVO).

摘目评价激光脉络视网静脉吻合（CRVA）术后≥2年视网静脉阻塞患者疗效和并发症。

It will cause loss of the canine guidance, damage of the occlusion, and discoordination of the maxillary and mandibular arch forms.

阻生犬齿引起犬齿导引丧失、咬合损伤、牙弓不协调。

Singular neurectomy (posterior ampullary nere transsection) and posterior semicircular canal occlusion are the 2 specific techniques used in intractable BPP surgery.

单纯神经切除术（后壶腹神经）和后半规管闭塞术是应用于难治性良性阵发性位置性眩晕两种特殊手术治疗技术。

Objective To observe the characteristics of fundus images and fluorescin angiography (FFA) in diabetic retinopathy (DR) combined with retinal vein occlusion (RVO).

摘目分析糖尿病视网病变(DR)合并视网静脉阻塞(RVO)眼底特征和荧光素眼底血管造影(FFA)图像特征。

Methods Occlusion of the openings of main artery and side artery was performed through double-channeled air pocket tube,with normothermia,normal flowing rate and heart beating.

方法采用经肺脉双腔气囊导管封堵主脉侧脉导管开口，常温、常规流量，心脏不停跳缝闭脉导管开口。