occlusion

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

目的探讨胰源性静系节段性阻塞(PSOPS)的CT征象。

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

肿瘤侵及静3例，表现为侧壁浸、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).

摘目的评价激光视网静吻合（CRVA）术后≥2年的视网静阻塞患者的疗效和并发症。

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的丧失、咬合的损伤、上下颚牙弓的不协调。

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的两种特殊的手术治疗技术。

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

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

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.

方法采用经肺动双腔气囊导管封堵主动侧动导管开口，常温、常规流量，心脏不停跳缝闭动导管开口。