狭窄

基本解释 (translations)

closeness  ·  coarctation  ·  stenosis  ·  straitness  ·  stricture  ·  fretum  ·  stegnosis  ·  stenochoria  ·  stenotic  ·  stenoses

词组短语

narrow and limited · steno-

与狭窄相关的网络例句 [注：此内容来源于网络，仅供参考]

Results In 84 cases of nerve root type,stenosis was found in 438 intervertebral foramen,of which C6～7 and C5～6 intervertebral foramen stenosis accounted for 79.6%.The causes of intervertebral foramen stenosis were uncinate process articulation hyperosteogeny,intervenebral disc protrusion,vertebral body hypertrophy,zygapophysis hyperosteogeny and dislocation etc.40 cases of vertbral artery type manifested that vertbral artery became slim and deviousness as a result of the compression of vertbral artery （20.7%） by osteophyte.22 cases of myeloid type manifested with cervical spinal canal stenosis,hyperosteogeny of posterior vertebral body edge,posterior longitudinal ligament calcification and cervical intervertebral disc protrusion etc.

结果 84例神经根型中，发现椎间孔狭窄438处，其中C5～6和C6～7椎间孔狭窄占79.6%，椎间孔狭窄的成因有钩突关节骨质增生、椎间盘突出、椎体肥大、小关节突骨质增生、错位等；40例椎动脉型表现为骨赘压迫椎动脉（52.5%），导致椎动脉变细、粗细不均和椎动脉迂曲。22例脊髓型表现为颈椎椎管狭窄、椎体后缘骨质增生、后纵韧带钙化、椎间隙狭窄和颈椎间盘突出等。

The degradating and redistributing of ECM were migration of VSMC and vascular remodeling through inhibiting the production of PDGF-BB and the activation of MMPs so to prevent the vascular stenosis.⑤Orthotopic hybridism in situ: The expression of MMP-3 increased after operation, the tendency and intensity were parallel to the expression of NF-κB. Tongxinluo could decrease the expression of MMP-3 and NF-κB. The study showed that the producting and activating of MMP-3 were modulated by NF-κB. The inhibition to the producting and activating of MMp-3 of Tongxinluo was mediated by inhibiting the activating of NF-κB. Conclusion ①The rabbit vascular stenosis model could be established successfully by plain balloon damage, the operation process was easy, economical and practical.

①单纯球囊损伤可成功建立典型家兔血管狭窄模型，操作方法简单，经济实用；②以VSMC增殖、迁移为主的内膜增厚以及以ECM降解、合成与再分布所致的血管重构是导致受损血管狭窄的根本原因；③通心络能明显抑制VSMC的增殖、迁移和ECM降解、合成，阻止血管内膜增生和血管重构，防止受损血管狭窄；该作用可能与其减少和阻止PDGF-BB的产生和活性，以及抑制MMPs的表达和恢复MMPs/TIMPs平衡有关；④通心络能显著抑制球囊损伤后血管内膜增生和血管重构，可能与其保护血管内皮，改善内皮功能，增加血清NO含量有关；⑤通心络抑制内膜增生和血管重构，减轻受损血管狭窄，还可能是通过抑制NF-κB的活化途径而起作用的。

Results: Deep venous ascending phlebography of left limb showed the degree of stenosis of iliac vein, iliac vein compression syndrome can be divided into three types according to deep venous ascending phlebography of left limb, the mean stenotic rate of type Ⅰ was 74.25%, type Ⅱ was 55.47% and type Ⅲ was 38.64%.

结果：左下肢深静脉顺行造影表现可反映髂静脉狭窄程度，髂静脉压迫综合征可分为3型，Ⅰ型狭窄率约74.25%，Ⅱ型狭窄率约55.47%，Ⅲ型狭窄率约38.64%，各型之间狭窄程度有非常显著性差异(P.01)。

Accuracy between two groups was calculated byχ~2 test.Calculate the average effective radiation dose of the 30 patients.Results In group A,seventeen patients underwent both DSCT coronary angiography and SCAG,among 255 segments of 17 patients,105 lesion sites of 70 segments were diagnosed stenosis or obstruction,of them,95 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 90.48%.The agreement of two methods have a high agreement(Kappa =0.853).In group B,13 patients underwent both DSCT coronary angiography and SCAG,among 195 segments of 13 patients,73 lesion sites of 57 segments were diagnosed stenosis or obstruction, of them,65 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 89.04%.The agreement of two methods have a high agreement(Kappa =0.835). There was no significant difference(χ~2=0.098,p＞0.05) between the accuracy of two groups.The effective radiation dose of 30 patients was 3.67±0.43 mSv.Conclusion Compared with SCAG,prospectively ECG-gated transverse DSCT is a valuable examination to detect and diagnose coronary artery disease with a low dose coronary angiography.The accuracy of the DSCT is approximate to the SCAG.There was no significant difference between the accuracy of two groups.

结果200例患者均成功完成了适应性前瞻性心电门控双源CT冠状动脉血管成像；30例同期行SCAG检查的患者，A组17例：HR≤75 bpm，可评价冠状动脉节段255个，70个冠状动脉节段有105处不同程度的狭窄，95处狭窄程度与金标准SCAG相符，其阳性诊断准确率为90.48%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.853)。B组13例；HR≥91 bpm，可评价冠状动脉节段195个，57个冠状动脉节段有73处不同程度的狭窄，65处狭窄程度与SCAG相符，其阳性诊断准确率为89.04%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.835)。2个心率组间的诊断准确率无明显统计学差异(x~2=0.098，p＞0.05)。30例患者的平均有效辐射剂量为3.67±0.43 mSv结论适应性前瞻性心电门控双源CT冠状动脉成像是一种有效减低辐射剂量的扫描方式，其诊断准确率与金标准SCAG相比得到较高的一致性，且高、低2个心率组间诊断准确率无明显统计学差异。

METHODS 99 cases with isolated RCA stenosis confirmed angiographically were grouped in terms of severity and location of RCA lesions. Their left ventricular ejection fraction, left ventricular end diastolic pressure measured by ventriculography were compared with those of the control group with no significant coronary lesions.

将冠状动脉造影证实为单纯RCA狭窄的患者99例，按不同狭窄程度、不同狭窄节段和不同冠脉优势型进行分组，并与494例无冠状动脉狭窄的对照组比较，经左心室造影测定的左室射血分数和左室舒张末压。

Rectostenosis were divided into three types,circular,cannular and linear.Results All operations were successful.

回顾分析1992～2005年，经骶侧路手术治疗直肠低位炎性狭窄20例资料，狭窄类型包括环型狭窄、管状狭窄、线状狭窄。

Objective To study the relationship of endangium proliferation and the expression of metalloproteinases and tissue inhibitors of metalloproteinases after angioplasty of iliac artery in rabbits to investigate the probable mechanism of composite Danshen pill in prevention and treatment of restenosisMethods 30 white male rabbits of Japan （the average body weight was 25～30 kg）were randomly divided into 3 groups:normal control group,model group (intima destroyed by balloon and given hypercholesterol diet),CDP group (intima destroyed by balloon and given hypercholesterol diet plus drug CDP 150 mg/d),10 ones each groupResults The results of iliac artery angiogram and the analysis of pathology:there were lumens stenosis,thinner intima,smaller intima area,in CDP group compared with those in model group,and ratio of intima and tunica media thickness and area among each group (P＜001)Immunohistochemistry analysis:the MMP2,MMP9,TIMP1,TIMP2 in model group significantly increased than those in control group (P＜001)The CDP group had lower MMP2 and MMP9 expression,higher TIMP1 and TIMP2 expression,and increased MMP2/TIMP1,MMP9/TIMP2 than model group (P＜001)The thickening of vascular neointima and stenosis degree of vascular lumen were relevant to MMP2 and MMP9 (r=0896,P＜001)Conclusions MMP and TIMP play the very important role in the restenosis process of arteryCDP could inhibit the thickness of vascular neointima after balloon injury,the probable mechanism of which may be inhibiting collagen formation,smooth muscle immigration and decreasing hyperplasia of intima by interfering expression of MMPs and TIMPs

目的 研究兔髂动脉成形术后血管内膜增生和基质金属蛋白酶及其抑制物表达之间的关系，探讨复方丹参滴丸预防再狭窄的可能机制。方法健康成年二级雄性日本大耳白兔30只，平均体重25～30 kg。随机分为3组：正常对照组10只，模型组10只（球囊内膜剥脱加高胆固醇饮食），治疗组10只（球囊内膜剥脱加高胆固醇饮食以及复方丹参滴丸150 mg/d）。结果兔髂动脉造影、血管病理图像分析检测结果：①复方丹参滴丸组较模型组血管造影示管腔直径狭窄、内膜厚度减少、内膜面积减少、内膜厚度和中膜厚度比、面积比，各组之间有显著性差异(P＜001)。②免疫组化分析：模型组MMP2、MMP9、TIMP1、TIMP2表达均高于对照组（P＜001）；复方丹参滴丸组MMP2、MMP9的表达低于模型组，而TIMP1、TIMP2的表达高于模型组；TIMP1/MMP2、TIMP2/MMP9明显增加，差异有显著性（P＜001）。③内膜的增生以及管腔的狭窄程度与MMP2、MMP9有很好的相关性(r=0896，P＜001)。结论 MMP和TIMP在再狭窄形成中起重要作用；复方丹参滴丸能够明显抑制血管损伤后的内膜增生，可能的机制是通过影响金属蛋白酶MMP2、MMP9及其抑制物TIMP1、TIMP2的表达从而抑制胶原的生成、平滑肌的迁移、增生，而减少内膜的增生。

The parameters of perfusion signal intensity-time curve, including upslope、peak signal intensity, and time to peak signal intensity were analyzed for each segment in different groups.

依据冠状动脉造影结果将不同狭窄程度血管所供心肌节段分为四组，即明显狭窄组(血管狭窄≥75％)、中度狭窄组(血管狭窄在50％～74％)、轻度狭窄组(血管狭窄＜50％)及正常组，分析每一节段心肌灌注信号曲线参数(最大斜率、强化峰值及达峰值的通过时间)并比较组间差异。

Result The patients of posterior urethral stricture using the posterior urethrascope have been followed up for 1 moth to 22 years,clinical results:good in 89cases\general in 23cases\poor in 12cases\failed in 9cases,good rate being 84.2%,succeeding rate being 93.2%;The patients of preceding urthrostenosis using the preceding urethrastenosis cutting knife have been followed up for 16 years,the patients using the urethrastenosis dilator have been followed up for 7moths to 7years,the result is good.

经尿道一次性完成手术操作。结果：应用后尿道狭窄切开器治疗各种不同类型的后尿道狭窄133例，经1月至22年随访，效果优者89例，良者23例，差者12例，失败9例。优良率84.2%，有效率93.2%；前尿道狭窄切开刀治疗前尿道狭窄3例，随访16年，效果良好；系列尿道狭窄扩张器治疗尿道狭窄3例，经7个月至7年随访，效果良好。

This software can show the vessel stenosis, calcification and the relation with surrounding sclerotin clearly. It shows the stenosis section exactly and calculates the degree of stenosis automatically. Conclusion The 16-row CT angiography is no-trauma and can be the first choice in diagnosis of carotid artery stenosis.

结果 17例患者CTA显示颈总动脉、颈外动脉、颈内动脉显示率为100%；颈内动脉狭窄18支，其中轻度狭窄10支，中度狭窄4支，重度狭窄3支，闭塞1支；其软件能清晰显示血管狭窄、钙化和周围骨质的关系，准确显示狭窄段，计算狭窄程度。

与狭窄相关的网络解释 [注：此内容来源于网络，仅供参考]

constriction ring：痉挛性狭窄环

2.子宫痉挛性狭窄环(constriction ring)子宫壁某部肌肉呈痉挛性不协调性收缩所形成的环状狭窄,持续不放松,称为子宫痉挛性狭窄环. 多在子宫上下段交界处,也可在胎体某一狭窄部,以胎颈、胎腰处常见.

constriction ring：狭窄环

2子宫痉挛性狭窄环(constriction ring) 子宫壁某部肌肉呈痉挛性不协调性收缩所形成的环状狭窄持续不放松称为子宫痉挛性狭窄环多在子宫上下段交界处也可在胎体某一狭窄部以胎颈胎腰处常见.

contracted pelvis：骨盆狭窄,均小骨盆,均小骨盆,狭小骨盆,狭窄骨盆,狭窄性骨盆

contracted pelvic outlet 骨盆出口狭窄,骨盆下口狭窄 | contracted pelvis 骨盆狭窄,均小骨盆,均小骨盆,狭小骨盆,狭窄骨盆,狭窄性骨盆 | contracted responsibility system of editors 编辑承包责任制

Mitral stenosis：二尖瓣狭窄

心脏综合病征 心脏综合病征(Heart Syndrome) 二尖瓣狭窄 二尖瓣关闭不全 主动脉瓣狭窄 主动脉瓣关闭不全 心包积液 二尖瓣狭窄(Mitral Stenosis) 病因 病理生理 症状 体征 1.

Mitral stenosis：二尖瓣狭窄,僧帽瓣狭窄

\\"二尖瓣闭锁不全,僧帽瓣闭锁不全\\",\\"mitral insufficiency\\" | \\"二尖瓣狭窄,僧帽瓣狭窄\\",\\"mitral stenosis\\" | \\"僧帽瓣\\",\\"mitral valve,bicuspid valve\\"

Pulmonary vein stenosis：肺静脉狭窄

腰椎管狭窄症:lumbar spinal stenosis | 肺静脉狭窄:Pulmonary vein stenosis | 哑型二尖瓣狭窄:Silent mitral stenosis

Pulmonary stenosis：肺动脉狭窄

先天性肺动脉狭窄(pulmonary stenosis)是右心室流出道梗阻的疾病,是较为常见的先天性心脏病,约占先天性心脏病发病率的8%. 可分为:单纯性肺动脉瓣狭窄、瓣上狭窄、瓣下狭窄(漏斗部狭窄),本课件重点介绍了婴幼儿肺动脉瓣狭窄的介入治疗及疗效影响因...

Pulmonary stenosis：肺动脉口狭窄

单纯肺动脉口狭窄(pulmonary stenosis)是指肺动脉瓣或漏斗部狭窄而室间隔完整的先天性畸形. 其病理变化有三种情况:①肺动脉瓣狭窄:3个半月瓣融合在一起,仅留一小孔,肺动脉本身及右心室正常;②漏斗部狭窄,即右心室的流出道狭窄,

Aortic stenosis：主动脉瓣狭窄

主动脉瓣狭窄(aortic stenosis)可由风湿热的后遗症先天性狭窄或老年性主动脉瓣钙化所造成主动脉瓣狭窄患者中80%为男性单纯风湿性主动脉瓣狭窄罕见常常与主动脉瓣关闭不全及二尖瓣病变合并存在病理变化为瓣膜交界处粘连和纤维化瓣膜的变

Laryngotracheal stenosis：喉气管狭窄

喉气管狭窄( Laryngotracheal Stenosis) 任何造成喉气管软组织和软骨支架结构损伤和/或缺失的因素均可导致喉气管腔内瘢痕缩窄性改变,即喉狭窄的发生. 临床上一般将喉气管狭窄分为先天性和后天性两大类,儿童喉气管狭窄的诊治同成人相比差异较大.