髂下腹的

Results 3 cases of lesions were in the gap of"V"shape between iliac muscle and musculus psoas major on the coronal sections in the lower right abdomen closely adjacent to the cecum,which were narrowed. The lesions showed long even T1 and T2 signals similar to mucous wall particularly in T2WI image. The walls of cyst were thin and even. The cysts were round or oval in shape on transections.The cyst were cucurbits in shape in 2 cases and long cannular in a case on coronal sections and arrowy sections and borderlines of the cysts were clear. The terminal of the cysts showed taper in 2 cases. In addition, cecum polypus was found at the placket of the appendix in a case which was not shown on MRI image.

结果 3例病变均位于右下腹，冠状面位于髂肌和腰大肌形成的"V"形间隙内，与盲肠关系密切，盲肠呈外压改变；呈均匀长T1、长 T2信号；壁薄且均匀，信号与肠管壁相似，于T2WI显示较明显；于横断面分别呈圆形、类圆形及椭圆形，冠状面及矢状面2例显示呈"葫芦"状、1例呈长管状，3例末端均呈"桃尖"样变；边界均清楚。1例于阑尾开口部发生盲肠息肉，MRI未能显示。

Results 3 cases of lesions were in the gap of"V"shape between iliac muscle and musculus psoas major on the coronal sections in the lower right abdomen closely adjacent to the cecum,which were narrowed. The lesions showed long even T1 and T2 signals similar to mucous wall particularly in T2WI image. The walls of cyst were thin and even. The cysts were round or oval in shape on transections.The cyst were cucurbits in shape in 2 cases and long cannular in a case on coronal sections and arrowy sections and borderlines of the cysts were clear. The terminal of the cysts showed taper in 2 cases. In addition, cecum polypus was found at the placket of the appendix in a case which was not shown on MRI image.

结果 3例病变均位于右下腹，冠状面位于髂肌和腰大肌形成的&V&形间隙内，与盲肠关系密切，盲肠呈外压改变；呈均匀长T1、长 T2信号；壁薄且均匀，信号与肠管壁相似，于T2WI显示较明显；于横断面分别呈圆形、类圆形及椭圆形，冠状面及矢状面2例显示呈&葫芦&状、1例呈长管状，3例末端均呈&桃尖&样变；边界均清楚。1例于阑尾开口部发生盲肠息肉，MRI未能显示。

The abdominal wall in the left lower quadrant, 2 finger breadths (3 cm) cephalad and 2 finger breadths medial to the anterior superior iliac spine, has been shown to be thinner and with a larger pool of fluid than the midline and is usually a good choice for needle insertion for performance of a therapeutic paracentesis.27 The right lower quadrant may be a suboptimal choice in the setting of a dilated cecum or an appendectomy scar.

在过去，常常将腹部正中线耻骨与肚脐中间定为穿刺点，现在，由于腹腔穿刺引流大量液体以及腹中部脂肪厚度增加，左下腹成为腹腔穿刺部位（表1），在左下腹部中线至髂前上棘连线上2指宽（3cm）与距髂前上棘2指宽，已经显示较中部脂肪少及腹水较多是治疗性腹腔穿刺好的首选部位27，在盲肠有扩张或阑尾切除术后瘢痕时右下腹是次选的穿刺部位，应避开腹壁下动脉，这些血管走行在耻骨与髂前上棘之间的中线然后在腹直肌中向上行走，，腹壁可见的侧支循环亦应该避开，腹腔镜检查发现侧支循环可出现在中线并且在腹腔穿刺时有导致血管破裂的风险28。

Study of applied anatomy of the infrarenal abdominal aorta will supplement the domestic data of abdominal aortic anatomy.

根据影像学资料得到的数据分析得出：肾动脉下腹主动脉的前后径为15.53±2.39mm，左右径为15.03±2.09mm；左髂总动脉终端的直径为8.47±1.05mm，右髂总动脉终端的直径为8.59±1.17 mm。

Objective To investigate the applied anatomic data of the infrarenal abdominal aorta of adult corpse anatomy and imageology.To explore the length and diameter of the infrarenal abdominal aorta and the relation between the body height and the length of the infrarenal abdominal aorta, supplemen the domestic data of abdominal aortic anatomy and provide the evidence to direct the treatment of abdominal aortic disease.

目的通过收集成人尸体标本和螺旋增强CT影像学腹主动脉资料对肾动脉下腹主动脉至双侧股动脉进行应用解剖学研究，了解肾动脉下腹主动脉、双侧髂总动脉、股动脉的长度和直径的解剖学资料，以及肾动脉下腹主动脉至股动脉分叉部长度与身高的关系，为补充腹主动脉体质资料和指导腹主动脉疾病的治疗提供依据。

Methods To dissect fifty health adult corpses(33 male ,17 female)and measure the corpses height, the length of the infrarenal abdominal aorta,the length of left and right common iliac arteries. The aortic diameter of the position on the infrarenal abdominal aorta is measured and the height is compared between the lelt and right renal artery at the same time.

方法采用50具健康成人尸体标本(男性33例，女性17例)，测量身高，解剖左右肾动脉、肾动脉下腹主动脉、左右髂总动脉及股动脉分叉部，分别测量肾动脉下腹主动脉至左右股动脉分叉部的长度，测量左右髂总动脉长度，测量肾动脉平面腹主动脉的直径，比较左右肾动脉位置的高低。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。