多层螺旋CT门静脉成像对肝硬化门脉高压侧支循环的诊断价值

目的探讨多层螺旋CT(MSCT)门静脉成像对肝硬化门脉高压侧支循环的诊断价值。方法对109例经临床、肝功能和影像学检查诊断为肝硬化门脉高压患者行腹部三期增强扫描,经图像后处理,获得门静脉系统及侧支血管三维重建图像。结果 CTPV可以直观地显示门静脉系统及侧支循环。109例中,胃左静脉曲张67例(61.5%),食管下段静脉曲张87例(80.0%),胃后/短静脉曲张10例(9.2%),食管旁静脉曲张21例(19.3%),胃/脾-肾静脉分流14例(12.8%),门静脉海绵样变18例(16.5%),附脐静脉、腹壁静脉曲张15例(13.8%),椎旁静脉分流6例(5.5%)。结论 MSCT门静脉成像可精确显示各类侧支循环的部位、程度及走行,可为临床治疗前评估提供可靠的影像依据。     

胰源性区域性门脉高压症合并上消化道出血的诊治分析

目的探讨胰源性区域性门脉高压症合并上消化道出血的诊断和治疗方法。方法回顾分析我院2000年1月至2011年2月收治的14例胰源性区域性门脉高压症合并上消化道出血患者的诊疗措施和随访资料。结果14例患者中胰体尾占位6例,胰腺假性囊肿4例,慢性胰腺炎4例。均有呕血或（和）黑便史,其中4例有失血性休克表现。所有患者均无肝硬化、腹水及肝功能异常等表现。胃镜和超声胃镜提示14例患者均有胃底静脉曲张,2例同时合并食管下段静脉曲张。8例患者有脾肿大和脾功能亢进的表现。14例患者均采用手术治疗。9例患者获得随访,曲张静脉明显改善或消失,随访5月～8年均无出血复发。结论孤立性胃底静脉曲张、脾肿大和脾功能亢进、无肝硬化和肝功能正常以及胰腺疾病病史是诊断胰源性区域性门脉高压症的基本要点。该疾病可通过脾切除术或联合胃底周围血管离断术治愈,应同时重视对胰腺原发疾病的治疗。     

胰源性门脉高压症的诊断和治疗

胰腺疾病是区域性门脉高压症最常见的病因。孤立性胃底静脉曲张、肝功能正常、脾肿大是胰源性门脉高压最典型的临床表现。胰源性门脉高压症并发胃底静脉曲张破裂出血最有效的治疗是脾切除术,但预后主要取决于胰腺原发疾病。     

三维多层螺旋CT对肝硬化门脉高压患者侧支循环的诊断价值

目的　了解多层螺旋CT门体侧支循环的显示情况,并探讨其临床意义。方法　对2003 -04 ~2003-12北京友谊医院43例肝硬化门脉高压病人分别进行胃镜和多层螺旋CT门脉成像。了解食管胃底静脉曲张及门体侧支循环形成情况并加以比较,同时分析其与肝功能之间的相关性。结果　多层螺旋CT能清晰地显示门静脉及其侧支血管,胃镜显示食管静脉曲张38 /43(88. 4% ),胃底静脉曲张23 /43 (53 .5% ),螺旋CT显示食管静脉曲张37 /43(86% ),胃底静脉曲张25 /43(58 .1% )。对食管胃底静脉曲张的显示与胃镜有高度一致性,Kappa值分别为0 .876和0. 903。结论　多层螺旋CT结合多种三维重建技术进行图像后期处理,能产生高质量的血管图像,三维多层螺旋CT门脉造影,能显示肝硬化病人门体侧支血管,可能是这个领域中理想的血管成像技术。     

216例肝硬化门静脉高压症患者CT血管成像门静脉侧支血管表现研究

目的探讨肝硬化患者CT 门静脉血管成像中门静脉侧支血管表现,为临床诊断提供依据。方法回顾性研究2013年1月~2014 年1月本院收治的 216 例临床诊断为肝硬化门静脉高压症患者的临床和CT检查资料,针对患者CT门静脉血管成像和门静脉侧支血管三维重建图像进行分析。结果216例患者中,肝硬化门体分流侧支血管的分布、走行及解剖毗邻关系在CT 门静脉血管成像图像上都能得到良好、直观的显示,其中胃左静脉曲张者172例（79.63%）,食管下段静脉曲张者100例（46.30%）,食管旁静脉曲张者 51例（23.61%）,胃/脾肾静脉分流者50例（23.15%）,附脐静脉及腹壁静脉曲张者36例（16.67%）;胃/脾肾静脉分流患者门静脉和脾静脉直径分别为（12.64±1.12） mm和（18.72±3.48） mm,与无分流患者比较有统计学差异[分别为（19.56±5.64） mm和（13.47±2.35）mm,P<0.05]。结论对肝硬化门脉高压患者行CT 门静脉血管成像检查能够对患者侧支循环的部位、严重程度等进行观察,并作出准确的判断。     

门-体分流程度评估血吸虫病肝硬化上消化道出血的应用

目的探讨门-体静脉分流程度在评估血吸虫病肝硬化上消化道出血中的应用。方法以金山医院经临床证实的33例血吸虫病肝硬化上消化道出血患者,及29例血吸虫病肝硬化非出血患者为研究对象,对其进行上腹部128层螺旋CT扫描。采用薄层块最大强度投影(TSMIP)、多平面重建(MPR)对门静脉系进行血管重建,对两组患者门-体静脉分流程度进行评分和比较,分析各侧支血管分流程度与血吸虫病肝硬化上消化道出血的关系。结果 33例上消化道出血患者中,侧支血管发生率如下:胃左静脉曲张86.4%、胃短静脉曲张68.2%、食管静脉曲张50.0%、食管旁静脉曲张50.0%、胃底静脉曲张37.9%、胃肾静脉69.7%、脾肾静脉51.5%、腹壁静脉曲张25.8%、网膜静脉曲张15.2%、脾周静脉曲张63.6%、附脐静脉曲张34.8%、腹膜后-椎旁静脉40.9%、肠系膜静脉曲张36.4%。出血组食管静脉、食管旁静脉、胃左静脉和胃底静脉的发生率和分流程度均明显大于非出血组(P值均0.05)。结论 CT门静脉系成像可精确显示各类侧支血管的部位、程度及走向。食管静脉、食管旁静脉、胃左静脉和胃底静脉能较准确地预测血吸虫病肝硬化上消化道出血的风险情况,上述侧支血管分流程度越高,上消化道出血危险性就越大。     

胰源性门脉高压症44例临床分析

目的探讨胰源性门脉高压症(Pancreatogenicportalhypertension)的病因、临床特点及防治措施。方法回顾性分析我院1998年~2005年收治的44例胰源性门脉高压患者的临床资料,并结合1998~2006年中文科技期刊全文数据库累及报道的胰源性门脉高压症164例患者的临床资料进行综合分析。结果208例胰源性门脉高压症患者中脾大者占98.1%,胃底静脉曲张者占87.5%,伴上消化道出血者占80.2%,慢性胰腺炎、胰腺假性囊肿、胰腺肿瘤共占总数的93.1%。结论上述胰腺疾病容易并发胰源性门脉高压症,提高对本病的认识具有重要的临床意义;病变在胰尾的胰源性门脉高压,脾脏切除术是治愈本病的手段。     

多层螺旋CT门静脉血管成像与内镜对食管、胃静脉曲张诊断的比较研究

目的对比研究多层螺旋CT门静脉血管成像(CTP)和内镜对食管、胃静脉曲张的诊断。方法采用16排多层螺旋CT门静脉血管成像,对57例临床和实验室检查提示门静脉高压的患者进行CTP,观察门静脉及其分支走形、分布,并结合横断面图像仔细观察食管和胃有无静脉曲张,并记录其部位、曲张静脉深浅、观察曲张静脉来源、有无其他部位曲张静脉或其他病理情况。同期对这些病例行胃镜检查,观察食管、胃是否存在静脉曲张及其他病变。结果CTP显示食管及胃静脉曲张病例51例,其中胃底静脉曲张合并食管静脉曲张39例,单纯胃底静脉曲张9例,胃底静脉曲张合并胃体静脉曲张3例。内镜发现食管及胃底静脉曲张46例,其中胃静脉曲张合并食管静脉曲张24例,单纯胃静脉曲张5例,单纯食管静脉曲张17例。CTP可发现内镜无法诊断的肌层或管腔外静脉曲张。结论CTP可清晰显示门静脉高压患者食管、胃底静脉曲张及主要侧支血管的走行、分布。在食管静脉曲张检查方面,CTP与内镜效果相当,CTP有几例假阳性,可作为普通内镜检查的良好补充;对于胃静脉曲张的检查,CTP效果较胃镜敏感,且CTP可清晰显示内镜无法观察的胃腔周围和食管周围静脉曲张。     

螺旋CT门静脉造影对门脉高压侧支循环的研究

目的探讨多排螺旋CT门静脉造影(CT portal venography,CTPV)显示肝硬化门脉高压侧支循环血管的临床应用价值。方法对92例肝硬化门脉高压的患者分别进行CT门脉造影,获得门脉侧支循环血管的清晰图像,测量门静脉主干和胃左静脉直径,将胃镜与CT门静脉造影两种技术进行比较。结果应用CT门静脉造影能清晰显示和测量门脉侧支循环的血管。CT门静脉造影与胃镜两种方法对食管和胃底曲张静脉的显示能力具有一致性,Kappa值分别为0.502和0.478。结论应用多排螺旋CT门静脉造影能很好显示和测量门体间侧支循环血管。联合应用多排螺旋CT门静脉造影与胃镜两种方法,对于肝硬化门静脉高压患者的诊断、病情判断和估计预后有帮助。     

晚期血吸虫病门脉高压症术后门静脉血栓形成的危险因素分析

目的探讨晚期血吸虫病门脉高压症脾切除贲门周围血管离断术后门静脉血栓(PVT)形成的危险因素。方法收集2004年8月至2014年3月期间本院外科收治的211例晚期血吸虫病门静脉高压症患者的临床资料,对可能影响术后PVT形成的因素进行单因素分析和Logistic回归分析。结果 211例患者中,59例术后PVT形成,发生率为27.96%(59/211)。单因素分析显示术前上消化道出血史、门静脉直径、脾静脉直径、食管静脉曲张程度、腹水、门脉高压性胃病、胃底静脉曲张、血氨水平是患者术后PVT形成的影响因素。Logistic回归分析显示门静脉直径增宽(OR=1.763,P=0.000)和门脉高压性胃病(OR=1.089,P=0.037)是患者术后PVT形成的独立危险因素。结论晚期血吸虫病门脉高压症术后PVT形成的发生率较高,门静脉直径增宽和门脉高压性胃病是PVT形成的独立危险因素。     

Isolated gastric variceal bleeding caused by splenic lymphoma-associated splenic vein occlusion

Isolated gastric varices(IGV) can occur in patients with left-sided portal hypertension resulting from splenic vein occlusion caused by thrombosis or stenosis. In left-sided portal hypertension,blood flows retrogradely through the short and posterior gastric veins and the gastroepiploic veins,leading to the formation of an IGV. The most common causes of splenic vein occlusion are pancreatic diseases,such as pancreatic cancer,pancreatitis,or a pseudocyst. However,various other cancers,such as colon,gastric,or renal cancers,have also been known to cause splenic vein occlusion. Our patient presented with a rare case of IGV bleeding induced by splenic lymphoma-associated splenic vein occlusion. Splenectomy,splenic artery embolization,and stenting of the splenic vein are the current treatment choices. Chemotherapy,however,is an alternative effective treatment for splenic vein occlusion caused by chemotherapy-sensitive tumors. Our patient responded well to chemotherapy with a cyclophosphamide,hydroxydaunorubicin,oncovin,and prednisolone regimen,and the splenic vein occlusion resolved after the lymphoma regressed.     

多层螺旋CT对胰源性区域性门静脉高压的诊断价值（附42例报道）

目的 分析胰源性区域性门静脉高压(pancreatogenic segmental portal hypertension,PSPH)的多层螺旋CT(MSCT)表现,探讨MSCT对该病的诊断价值.方法 使用16排螺旋CT对42例PSPH患者行上腹部CT平扫及增强扫描,采用图像后处理技术显示脾静脉及侧枝血管情况.结果 孤立性脾静脉阻塞30例,其侧支血管食管静脉(9.5%)、胃冠状静脉(76.19%)、胃短静脉(85.71%)、胃网膜静脉(95.24%)、胃结肠干(23.81%)曲张;非孤立性脾静脉栓塞12例,其中伴肠系膜上静脉阻塞8例,其属支胃结肠干(19.05%)、结肠右上静脉(16.67%)、结肠中静脉(14.29%)、胰十二指肠前上静脉(19.05%)有不同程度曲张.伴门静脉海绵样变5例.结论 MSCT对PSPH的脾静脉阻塞及其胃周迂曲扩张的侧枝静脉显示具有重要价值.     

Clinical and endoscopic features of gastric varices secondary to splenic vein occlusion

Aim: This study provides a retrospective evaluation of cases with gastric varices secondary to splenic vein occlusion. Methods: Our study group consisted of 14 patients. The clinical manifestations, diagnostic methods and therapeutic modalities were analyzed retrospectively. Results: Eleven patients had co‐existing pancreatic diseases: seven with chronic pancreatitis, three with cancer of the pancreatic body or tail and one with severe acute pancreatitis. Among the three remaining patients, one had advanced left renal cancer, one had myeloproliferative disease and the third had splenic vein occlusion due to an obscure cause. A diagnosis of gastric varices was made following endoscope gastroduodenoscopy or endoscopic color Doppler ultrasonography (ECDUS), and splenic vein occlusions were diagnosed from enhanced computed tomography in all cases. Specific findings of gastric varices secondary to splenic vein occlusion were based on ECDUS color flow images of gastric variceal flow that clearly depicted round cardiac and fundal regions at the center, with varices expanding to the curvatura ventriculi major of the gastric body. For three cases with gastric variceal bleeding, endoscopic injection sclerotherapy using a mixture of histoacryl and lipiodol (70% histoacryl solution) was performed, after which no further bleeding from gastric varices was detected. Due to a high risk of gastric variceal rupture, splenectomy was performed in two cases and splenic arterial embolization in another two cases. Conclusion: ECDUS color flow images of gastric variceal flow depicted specific findings of gastric varices secondary to splenic vein occlusion. Treatment should take into account the diseases underlying these conditions.     

特发性门静脉高压症的彩色多普勒超声诊断与临床价值

目的探讨特发性门静脉高压症（IPH）的声像图特征,评价彩色多普勒对IPH的临床诊断价值。方法对25例IPH患者进行彩色多普勒超声检查,观察肝脏表面、内部回声、脾脏大小及肝内外门静脉系统等。结果25例患者中,25例均见门静脉肝内分支管壁增厚、回声增强、管腔狭窄甚至闭塞,15例实质回声增粗,门静脉海绵样变性22例,门静脉系统血栓5例,均为门静脉主干、脾静脉及肠系膜上静脉血栓,15例伴有胆道系统的异常。结论临床上不明原因的门脉高压及脾功能亢进患者均应进行彩色多普勒超声检查,肝内门静脉分支管壁增厚、管腔狭窄甚至闭塞的特征性改变及门静脉海绵样变性可提示IPH。     

Portographic findings and coagulopathy in cirrhosis

Percutaneous transhepatic portography was performed in 57 patients with cirrhosis and portal hypertension. The portographic findings, the free portal pressure and the coagulation tests were analyzed. Moderate or severe abnormality of the coagulation system was significantly associated with extrahepatic shunting, large gastric varices and collaterals from the splenic vein and splenic hilum. Reduced levels of prothrombin, factor X and thrombocyte counts were the factors mainly accounting for this association. As severe variceal bleeding is associated with these changes in the portal circulation, identification of patients at high risk may be based on portography combined with examination of the coagulation system.     

Pancreatic endocrine carcinoma presenting with gastric varices derived by left-sided portal hypertension: a case report

We herein report a 71-year-old man with pancreatic carcinoma presenting as gastric varices caused by an obstruction of the splenic vein compressed by the tumor, which also invaded the spleen, stomach, transverse colon, left kidney, and left adrenal gland. A complete resection of distal pancreatomy and lymph node dissection with splenenctomy, left adrenalectomy, left nephrectomy, and partial resection of transverse colon and stomach were performed. After the resection, the gastric varices completely disappeared without any interventional therapy. The gastric varices observed in this case were considered to be derived from left-sided portal hypertension secondary to splenic vein occlusion, which is an uncommon complication mostly associated with pancreatitis and pancreatic carcinoma. Now that 17 months have passed after his operation, the patient is alive and in satisfactory condition without any signs of recurrence.     

胰源性区域性门脉高压症——附14例报告

本文报告了14例胰源性区域性门脉高压症。本病为肝外型门脉高压症中罕见的一种，对未发现肝脏疾病，而有胃底，食管静脉曲张，脾肿大的病人，应考虑本病。门静脉造影可以确立诊断，经皮脾穿刺门静脉造影是确诊本症的三种简单可行的方法。本病可经脾切除治愈。     

Therapeutic efficacy and stent patency of transhepatic portal vein stenting after surgery

AIM To evaluate portal vein(PV) stenosis and stent patency after hepatobiliary and pancreatic surgery, using abdominal computed tomography(CT).METHODS Percutaneous portal venous stenting was attempted in 22 patients with significant PV stenosis( 50%)-after hepatobiliary or pancreatic surgery- diagnosed by abdominal CT. Stents were placed in various stenotic lesions after percutaneous transhepatic portography. Pressure gradient across the stenotic segment was measured in 14 patients. Stents were placed when the pressure gradient across the stenotic segment was 5 mm Hg or PV stenosis was 50%, as observed on transhepatic portography. Patients underwent followup abdominal CT and technical and clinical success, complications, and stent patency were evaluated.RESULTS Stent placement was successful in 21 patients(technical success rate: 95.5%). Stents were positioned through the main PV and superior mesenteric vein(n = 13), main PV(n = 2), right and main PV(n = 1), left and main PV(n = 4), or main PV and splenic vein(n = 1). Patients showed no complications after stent placement. The time between procedure and final follow-up CT was 41-761 d(mean: 374.5 d). Twenty stents remained patent during the entire follow-up. Stent obstruction-caused by invasion of the PV stent by a recurrent tumor- was observed in 1 patient in a follow-up CT performed after 155 d after the procedure. The cumulative stent patency rate was 95.7%. Small in-stent low-density areas were found in 11(55%) patients; however, during successive follow-up CT, the extent of these areas had decreased.CONCLUSION Percutaneous transhepatic stent placement can be safe and effective in cases of PV stenosis after hepatobiliary and pancreatic surgery. Stents show excellent patency in follow-up abdominal CT, despite development of small in-stent low-density areas.     

肝硬化门静脉高压患者胃镜与B超表现相关性研究

目的 通过对肝炎肝硬化门静脉高压患者胃镜、B超检测结果行相关性分析，为临床判断肝硬化程度、早期预防并发症提供参考。方法 选择肝炎肝硬化门静脉高压患者192例，根据食管静脉曲张程度分为轻、中、重度3组。比较胃底静脉曲张在各组中发生比例，并测量门静脉主干宽度、脾静脉宽度、脾脏厚度，研究其与食管静脉曲张程度相关性。结果 3组患者胃底静脉曲张发生比例存在显著差异，食管静脉曲张程度越重，伴胃底静脉曲张比例越高；随食管静脉曲张程度不同，门静脉主干内径、脾静脉内径及脾脏厚度之间存在差异，脾脏厚度与脾静脉内径之间存在直线相关关系。结论 门静脉主干内径、脾静脉内径、脾脏厚度可为判断门静脉高压提供参考，综合上述3点并结合胃镜检查结果可较准确判断有无食管静脉曲张及程度。