低场磁共振胰胆管成像（MRCP）技术的临床应用价值

目的：探讨低场磁共振胰胆管成像（MRCP）技术的临床应用价值。方法：以0.2T低场磁共振扫描仪重T2加权水成像技术检查胆系结石患者157例。结果：157例中24例正常,133例患者有胆胰疾病,其中116例经手术后病理证实。阳性患者均能显示各类疾病的形态改变,阴性患者可显示正常胆系形态。结论：低场磁共振胰胆管成像（MRCP）技术能够反映胆系正常、异常及胆胰疾病部位、梗阻程度。结合MRI平扫可提高胆胰疾病诊断效率。     

磁共振胰胆管成像在梗阻性黄疸诊断中的应用

目的探讨磁共振胰胆管成像（MRCP）对梗阻性黄疸定位、定性的诊断价值。方法对60例梗阻性黄疸患者（病例组）利用0．5T超导装置，对超导磁共振的MRCP原始图像及最大强度投射法（MIP）图像进行分析，以30例正常者作为对照组。结果对照组：MRCP可清晰显示无扩张的肝内胆管在三级以上，左右肝管、肝总管、胆囊、胆总管均清晰显示，胆总管直径为4—7mm，粗细均匀，胰管显示率为23．3％（7／30），直径均在3mm以下。病例组：MRCP均满意地显示了梗阻、狭窄的部位、断端的形态。梗阻部位为肝门上段5例；肝门段17例；胰上段13例；胰腺段18例；壶腹段7例。梗阻端的形态呈锥形及圆锥形7例；突然截断形28例；鼠尾状或鸟嘴状25例。胆管呈轻至中度扩张21例，重度扩张39例。结论MRCP可在一定程度上反映胆道梗阻的性质，能够较好地评价胆道系统的正常与病理解剖，是诊断胆道病变的一种非常有效的方法。     

口服雷尼替丁在磁共振胰胆管成像中的应用

目的:评价口服雷尼替丁是否能提高磁共振胰胆管成像(MRCP)质量。方法:20名健康志愿者(男12人,女8人)在1.5T磁共振机器上行随机、双盲MRCP检查,由2名有经验的放射科医生对结果进行评分。结果:口服雷尼替丁没有副作用。胆总管近端、胆总管远端和胆囊的显示有显著性提高(P<0.05)。胰管和肝内胆管的显示没有统计学意义。结论:口服雷尼替丁便宜,且能有效抑制上消化道的信号,从而提高MRCP的成像质量。     

磁共振胰胆管成像在梗阻性黄疸诊断中的应用

目的 探讨磁共振胰胆管成像(MRCP)对梗阻性黄疸定位、定性的诊断价值.方法 对60例梗阻性黄疸患者(病例组)利用0.5 T超导装置,对超导磁共振的MRCP原始图像及最大强度投射法(MIP)图像进行分析,以30例正常者作为对照组.结果对照组:MRCP可清晰显示无扩张的肝内胆管在三级以上,左右肝管、肝总管、胆囊、胆总管均清晰显示,胆总管直径为4～7 mm,粗细均匀,胰管显示率为23.3%(7/30),直径均在3 mm以下.病例组:MRCP均满意地显示了梗阻、狭窄的部位、断端的形态.梗阻部位为肝门上段5例;肝门段17例;胰上段13例;胰腺段18侧;壶腹段7例.梗阻端的形态呈锥形及圆锥形7例;突然截断形28例;鼠尾状或鸟嘴状25例.胆管呈轻至中度扩张21例,重度扩张39例.结论 MRCP可在一定程度上反映胆道梗阻的性质,能够较好地评价胆道系统的正常与病理解剖,是诊断胆道病变的一种非常有效的方法.     

磁共振水成像技术在检查泪道阻塞中的应用价值

目的 分析磁共振水成像技术在检查泪道阻塞中的应用价值.方法 于2019年11月-2020年10月开展研究,将50例泪道阻塞患者纳入观察组,将50例泪道正常者纳入对照组,两组患者均采用磁共振水成像技术检查,分析检查价值.结果 磁共振水成像检查泪道阻塞准确率为98.0％,检出泪道正常的准确率为100.0％,与泪道冲洗法检查...     

磁共振胆胰管成像(MRCP)技术的临床应用

磁共振胆胰管造影是近几年来发展起来的ＭＲ胰胆管成像技术。它利用磁共振重Ｔ2 的效果 ,使含水的结构显影 ,达到水造影的目的。各种原因引起的胆道狭窄或阻塞 ,在磁共振成像肝胆扫描时均可显示胆道系统的扩张。笔者通过对 39例胆道疾病患者进行ＭＲＣＰ探讨该技术的临床应用价值。1　材料与方法1·1　临床资料　 39例均为我院 2 0 0 0年 4月至 2 0 0 1年 4月间住院或门诊病人。男 2 9例 ,女 10例 ,年龄 2 8～ 79岁 ,平均 5 3岁。其中胆石症 18例 ,炎性梗阻症 4例 ,胆管癌 12例 ,胰头癌 3例 ,壶腹癌 2例。其中 31例病人经手术及病理证实 ,8…     

枸橼酸铁铵在3.0T磁共振胰胆管成像中的应用

目的：探讨口服枸橼酸铁铵（ferric ammonium citrate effervescent granules,FAC）在3.0 T磁共振胰胆管成像（MRCP）检查中的临床应用价值。方法：回顾性分析32例口服FAC及20例未口服FAC行MRCP检查的患者图像。以胰胆管的显示情况和胃肠信号消除情况作为评价标准,对MRCP图像质量进行评价及比较。结果：FAC组的MRCP图像胃肠道液体高信号明显减低,对解剖结构及病变的显示均优于未服FAC组。结论：枸橼酸铁铵可有效消除MRCP图像中胃肠液高信号的干扰,明显改善图像质量,对胆胰管病变的诊断有重要的临床应用价值。     

磁共振成像 三维磁共振胰胆管成像诊断小儿胆道闭锁的临床价值

目的 探讨磁共振成像(MRI)、三维磁共振胰胆管成像(3D-MRCP)在小儿胆道闭锁诊断中的价值。方法 选取2020年1月—2022年4月厦门大学附属妇女儿童医院收治的疑似胆道闭锁患儿67例为研究对象。所有患儿均接受常规MRI、3D-MRCP检查。对患儿行肝门空肠吻合术,以术后病理学结果为标准,判断3D-MRCP的诊断价值。结果 67例患儿均顺利完成肝门空肠吻合手术,术后组织病理学检查出胆道闭锁62例(92.54%)。MRI、3D-MRCP诊断胆道闭锁患儿61例,灵敏度96.77%,特异度80.00%,准确度95.52%。MRI、3D-MRCP诊断胆总管闭锁、肝总管闭锁、肝门部胆管闭锁检出率及病理学结果比较差异均无统计学意义(χ^(2)=0.000、0.000、1.011,均P>0.05)。3D-MRCP检查示,26例患儿肝门区纤维斑块呈三角征,35例患儿肝门门静脉四周出现条片状信号。误诊2例,均为肝炎综合征误诊为胆道闭锁。结论 三维磁共振胰胆管成像3D-MRCP在小儿胆道闭锁中的诊断价值高,有助于临床医师做出早期诊断,为干预措施的制定、调整提供可靠依据,值得临床推广。     

超声联合磁共振胰胆管成像在胆囊结石治疗中价值的应用研究进展

为研究超声、磁共振胰胆管成像（magneticresonancedcholanslopancreatographyklRCP）在胆囊结石治疗中的应用价值,对近几年的文献报道进行综述。超声联合MRCP检查,可作为胆囊结石术前评估的常规方法,其应用价值值得进～步的研究。     

MRI联合MRCP在自身免疫性胰腺炎诊断中的应用

目的探讨常规MR、动态增强扫描（THRIVE）联合磁共振胰胆管造影（MRCP）对自身免疫性胰腺炎的诊断价值。方法对经临床证实的18例自身免疫性胰腺炎进行回顾性分析,18例均行MR平扫及动态增强扫描检查、MRCP检查。结果胰腺弥漫性受累（12／1＆）,胰头局限性肿块（4／18）,胰体尾部受累（d／18）;12例可见“假包膜”征。MRCP：14例胆总管胰腺段狭窄,13例见胰管局限性或弥漫性狭窄,4例主胰管未见显示;动态增强后病变区呈延迟性强化。结论常规MRI、动态增强扫描联合MRCP的联合应用对自身免疫性胰腺炎的诊断有重要价值,其影像学结果对临床治疗决策有指导意义。     

梗阻性黄疸的二维及三维磁共振胰胆管成像的临床应用

目的评价二维和三维磁共振胰胆管成像(MRCP)技术对梗阻性黄疸的诊断价值。方法回顾性分析50例经手术或临床证实的胆道梗阻性疾病患者的MRCP表现。结果MRCP能清楚显示胰胆管形态,定位准确率100%(50/50),定性准确率92%(46/50)。结论2DMRCP和3DMRCP的联合应用更有利于提高对病变的检出率,具有重要的临床应用价值。     

Comparison Costs of ERCP and MRCP in Patients with Suspected Biliary Obstruction Based on a Randomized Trial

BackgroundThe optimal management of patients with suspected biliary obstruction remains unclear, and includes the possible performance of magnetic resonance cholangiopancreatography (MRCP) and endoscopic retrograde cholangiopancreatography (ERCP).ObjectivesTo complete a cost analysis based on a medical effectiveness randomized trial comparing an ERCP-first approach with an MRCP-first approach in patients with suspected bile duct obstruction.MethodsThe management strategies were based on a medical effectiveness trial of 257 patients over a 12-month follow-up period. Direct and indirect costs were included, adopting a societal perspective. The cost values are expressed in 2012 Canadian dollars.ResultsTotal per-patient direct costs were Can$3547 for ERCP-first patients and Can$4013 for MRCP-first patients. Corresponding indirect costs were Can$732 and Can$694, respectively. Causes for differences in direct costs included a more frequent second procedure and a greater mean number of hospital days over the year in patients of the MRCP-first group. In contrast, it is the ERCP-first patients whose indirect costs were greater, principally due to more time away from activities of daily living. Choosing an ERCP-first strategy rather than an MRCP-first strategy saved on average Can$428 per patient over the 12-month follow-up duration; however, there existed a large amount of overlap when varying total cost estimates across a sensitivity analysis range based on observed resources utilization.ConclusionsThis cost analysis suggests only a small difference in total costs, favoring the ERCP-first group, and is principally attributable to procedures and hospitalizations with little impact from indirect cost measurements.     

2D and 3D Ultrasound Examination of Labia Minora

The aim of the study was to prospectively evaluate, by using 2D/3D ultrasonography and 3D color Doppler analysis, the morphological and vascular changes in the labia minora during the menstrual cycle of women not sexually aroused. A total of 81 young, healthy eumenorrheic women, in a stable heterosexual relationship (>1 year) and without any sexual dysfunction, underwent 2D/3D ultrasound and color Doppler examination of the labia minora on Days 3–5 and 12–14 of the menstrual cycle. Estradiol serum levels were also evaluated. Estradiol plasma levels increased in the periovulatory phase. The labia minora thickness increased from the follicular (3.8 ± 0.3 mm) to the periovulatory phase (4.6 ± 0.4 mm; p = .005). Furthermore, in the periovulatory phase, the vaginal introitus area and the angles were wider than in the follicular phase. The Pulsatility Index of the posterior labial artery significantly decreased in the periovulatory period. Three-dimensional power Doppler indices of vascularization and blood flow in the labia minora significantly increased in the periovulatory period. The relationship between the different parameters showed that estradiol was positively correlated with labia minora thickness and vaginal introitus area and angles. Furthermore, the circulating levels of estradiol were negatively correlated with posterior labial artery PI and positively correlated with other indices of labia minora vascularization. In conclusion, it seems that estrogen production may influence the anatomic and vascular changes of the labia minora during the menstrual cycle and these changes can be easily identified by ultrasound.     

3.0T MRCP诊断胆道梗阻性病变的临床应用价值

目的探讨磁共振胆管水成像（MRCP）对胆道梗阻性病变的临床应用价值。方法对80例胆管疾病患者的临床诊断资料进行回顾性分析。结果 MRCP定位诊断准确率100%,定性诊断准确率90.2%。结论 MRCP对梗阻的定位诊断是可靠的,是诊断良、恶性梗阻性黄疸的有效方法。