It has not yet been proven whether sepsis affects the tissue around the anal canal. To address this issue, we established three-dimensional models for various types of anorectal abscesses and utilize 3D reconstruction of Magnetic Resonance Imaging scans to assess the extent of muscle damage caused by anorectal abscesses. Patients diagnosed with anorectal abscess, selected from January 2019 to January 2022 underwent pre- and post-operative scanning of pelvic floor and perianal tissues. The aforementioned structures were segmented for the reconstruction of a three-dimensional visual model and measurement of volumes for the abscess as well as the internal and external sphincters and levator ani muscle. The study included a total of 42 patients. Three-dimensional visualization models were created for different types of anorectal abscesses, including perianal, intersphincteric, ischiorectal, and supralevator abscesses. No statistically significant differences were observed in the volume of the internal sphincter, external sphincter, and levator ani muscle between pre- and post-operative patients. The 3D model of anorectal abscess, reconstructed from MRI data, offers a precise and direct visualization of the anatomical structures associated with various types of anorectal abscesses. The infection did not result in any damage to the internal and external anal sphincter and levator ani muscle.

研究磁共振成像(MRI)对健康男性和女性盆底组织结构三维重建的方法及意义.选取健康青年男性及女性各1人,进行MRI扫描,观察盆底部分组织结构,应用医学图像处理软件ITK-SNAP进行三维重建,建立盆底肌群的三维几何模型,并实现任意角度观察和精确定位测量分析.在此基础上,应用有限元程序ANSYS workbench,建立计算模型,并对计算结果进行拟合分析,得到耻骨直肠肌收缩力与肛直角角度变化的相关性,研究结果可为今后开展盆底相关疾病的研究提供参考依据.

Hemorrhoid disease（HD） is one of the most common clinical benign diseases,which prevalence rates vary from4%～55% over the world.Treatment of HD increases,the financial burden.For those patients who do not.respond to conservative treatment,outpatient clinic procedure or surgical treatment would be necessary.Comparation of the recent practice guidelines（or consensus） of 11 countries shows high consistency in the classification,diagnosis and treatment of hemorrhoid disease.While there are still some differences due to different cultural and insurance factors.In Asian countries like China and Japan,there are more conservative treatment methods.Meanwhile,there are more office treatment methods in western countries.

目的:分析超声胎盘植入评分评估前置胎盘合并胎盘植入(PA)的价值.方法:前瞻性纳入2019年10月-2022年4月本院接收的80例前置胎盘疑似合并PA患者作为研究对象.于术前采用超声检查并进行超声胎盘植入评分;以临床手术或病理结果为"金标准"进行分组,将患者分为前置胎盘合并PA组和前置胎盘未合并PA组.分析比较两组的超声胎盘植入评分,并分析超声胎盘植入评分对前置胎盘合并PA的评估价值.结果:经临床手术或病理学检查发现,80例前置胎盘疑似合并PA患者65例为前置胎盘合并PA,占比为81.25％.前置胎盘合并PA组超声胎盘植入评分显著高于前置胎盘未合并PA组(P<0.05).绘制ROC曲线,结果显示,超声胎盘植入评分评估前置胎盘合并PA的AUC为0.901,具有较高的评估价值,且当超声胎盘植入评分为3分时,可获得最佳评估价值,此时的敏感度为0.846,特异度为0.933,约登指数为0.779.结论:超声胎盘植入评分评估前置胎盘合并PA具有较高的应用价值,且当超声胎盘植入评分≥3分时提示前置胎盘发生PA的风险偏高.