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正常胰胆管及急性胰腺炎胰管改变的MRI研究

发布时间:2018-07-06 14:34

  本文选题:成人 + 胆道 ; 参考:《川北医学院》2014年硕士论文


【摘要】:目的:利用MRI测量正常胆总管最大直径,拟定其上限值;并分析其与年龄、性别等及其它重要因素的关系。 材料与方法:743例无肝、胆、胰疾病者,其中包括203例志愿者。在MRCP图像上测量胆总管的最大直径。统计患者的年龄、性别,测量门静脉管径、肝外胆管长度和胆总管长度,观察胆囊管汇入肝外胆管位置的高低及汇入方向。对志愿者还统计其身高、体重、体重指数(body massindex,BMI),测量其深吸气屏气相MRCP图像上胆总管最大直径。依据年龄将患者分为7个组。并对胆总管直径与上述各种因素间关系进行分析。 结果:胆总管直径的平均值为(4.16±1.77)mm,范围1.98~7.08mm。60岁前胆总管直径的上限值为5mm,60岁后胆总管直径上限值为6mm。胆总管直径与年龄间呈正相关关系(r=0.491,P<0.05)。随年龄增加,胆总管直径每年增加0.032mm。60岁之后胆总管直径较60岁前胆总管直径大(P<0.05)。胆总管直径与性别、呼吸、身高、体重、体重指数、门静脉管径、肝外胆管长度、胆总管长度、胆囊汇入肝外胆管位置的高低及汇入方向间不存在统计学差异(P>0.05)。 结论:随年龄增加胆总管直径增加。60岁前胆总管直径上限值5mm,60岁后胆总管直径上限值6mm,超过该值认为胆总管扩张。 目的:研究正常胰管的3.0T磁共振表现。 材料与方法:203例健康志愿者,MR检查包括T1WI、T2WI、MRCP。管的观察序列包括轴位、冠状位T2WI及MRCP。观察各段胰管显示况、走行及变异。 结果:胰腺头、体、尾主胰管显示率99.51%、98.52%、93.10%;副管及分支胰管显示率34.00%、9.85%;胰腺分裂检出率5.91%;胰腺头、、尾主胰管平均直径(2.46±0.22)mm、(2.19±0.19)mm、(1.98±0.60)mm;胰管的平均长度及平均直径分别为(26.74±8.67)mm,(1.60±0.31)mm;管走行:下降型,占74.87%(152/203);“S”型,占11.33%(23/203);直型,,占9.36%(19/203);环形,占4.44%(9/203)。 结论:MRI能满意显示胰管正常解剖及变异。 目的:研究急性胰腺炎胰管改变的MRI表现。 材料与方法:收集239例急性胰腺炎患者及125例对照组。依据急性生理和慢性健康评估Ⅱ(Acute physiology and chronic health evaluation,APACHEⅡ)和MR严重指数(MR severity index,MRSI)对急性胰腺炎严重程度进行评分。在MRI图像上观察主胰管(main pancreatic duct,MPD)显影段,测量主胰管直径,观察有无胰管破裂,并研究其与急性胰腺炎严重程度的关系。 结果:急性胰腺炎患者胰管显影段较对照组低(P<0.05)。胰管显影段与APACHE Ⅱ评分(P0.05)及MRSI评分(P0.05)间呈负相关关系。急性胰腺炎与对照组胰管直径无差异(P0.05)。急性胰腺炎不同严重程度间胰管直径无差异(P0.05)。急性胰腺炎胰管破裂的发生率为7.9%。APACHEⅡ评分轻型和重型胰腺炎胰管破裂的发生率分别为4.8%和15.3%。MRSI评分轻度、中度及重度胰腺炎胰管破裂的发生率分别为0%,5.7%和43.5%。胰管破裂与APACHEⅡ评分(P0.05)及MRSI(P0.05)间呈正相关。 结论:急性胰腺炎患者主胰管直径在正常范围。MRI图像上胰管显影段及胰管破裂可以作为评估和预测急性胰腺炎严重程度另一种简单的辅助指标。
[Abstract]:Objective : To measure the maximum diameter of normal bile duct by MRI , and to formulate its upper limit value ;
Its relationship with age , sex and other important factors is analyzed .

Materials and Methods : There were 743 patients without liver , gallbladder and pancreatic diseases , including 203 volunteers . The maximum diameter of the common bile duct was measured on the MR images . The height , weight and body mass index ( BMI ) of the bile duct were measured . The height , body weight and body mass index ( BMI ) were measured . The height , body weight and body mass index ( BMI ) were measured . The height , body weight and body mass index ( BMI ) were measured . The height , body weight and body mass index ( BMI ) of the gallbladder tube were measured . The patients were divided into 7 groups according to age . The relationship between the diameter of the common bile duct and the above factors was analyzed .

Results : The mean diameter of the common bile duct was ( 4 . 16 卤 1 . 77 ) mm , the range was 1 . 98 锝

本文编号:2103109

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