The diagnostic value of 3D spiral CT imaging of cholangiopancreatic ducts on obstructive jaundic
清洁灌肠后保留灌肠多层螺旋CT扫描在直肠占位应用论文
清洁灌肠后保留灌肠多层螺旋CT扫描在直肠占位中的应用【摘要】目的：探讨清洁灌肠后保留灌肠多层螺旋ct扫描方法在直肠占位检查中的诊断价值。
方法：对51例疑有直肠占位的患者行清洁灌肠后保留灌肠ct扫描，观察直肠肠腔及肠周结构显示效果。
结果：51例患者病变显示阳性率100%，ct征象有：肠壁增厚，腔内肿块，肠腔狭窄，以及肠周邻近结构侵犯情况。
结论：清洁灌肠后保留灌肠多层螺旋ct检查对直肠占位的诊断有很大价值，良好的肠道准备及扫描方法是多层螺旋ct对直肠恶性病变诊断的关键。
【关键词】清洁灌肠;保留灌肠;螺旋ct扫描技术【中国分类号】r816.5【文献标识码】a【文章编号】1044-5511（2011）11-0043-01【abstract】objective: to evaluate the diagnostic value of multi-slice spiral ct (msct) scan after cleaning enema and retention enema in rectum space occupying lesion. material and methods: 51patients with suspectable rectum space occupying lesion were examined by cleaning and retention enema msct scan. then we observed the display of rectum enteric cavity and surrounding structure. results: there were 100% positive results in 51 patients, which had shown : intestinal wall increased thickness, enteric cavity occupying and narrow, and rectum surrounding structureinvading. conclusions: cleaning and retention enema msct scan can be of great value in rectum space occupying lesion. well bowel preparation and correct method of msct scan can be considered as a key to diagnosing of rectum space occupying disease.【key words】cleaning enema, retention enema, spiral ct scan传统的x线气钡灌肠只能显示腔内病变、肠粘膜、肠壁柔软度的变化，而无法显示肠壁及肠周邻近结构的改变；直肠指诊能够触诊腔内病变、肠腔狭窄程度，肠壁的柔软度、肛管直肠环的松紧度等，但不能客观地显示病变及其肠周改变［1］。
比较胸部螺旋CT_平扫和靶重建技术对肺结节的诊断价值
吕伟等：比较胸部螺旋CT平扫和靶重建技术对肺结节的诊断价值比较胸部螺旋CT平扫和靶重建技术对肺结节的诊断价值吕伟吕伟，，孙艳孙艳，，曹栋栋曹栋栋，，王宪章新沂市人民医院影像科，江苏新沂221400摘要目的研究比较胸部螺旋CT平扫和靶重建技术对肺结节的诊断价值。
方法选取2021年7月—2023年5月新沂市人民医院收治的89例肺结节患者为研究对象，对所有研究对象予以胸部螺旋CT平扫和靶重建技术，收集并分析不同检测方法的准确度、灵敏度及特异度。
结果 CT靶重建技术准确度为97.75%（87/89）、特异度为97.14%（34/35）、灵敏度为98.15%（53/54），高于胸部螺旋CT平扫，差异有统计学意义（χ2=19.264、12.857、7.053，P<0.05）；CT靶重建技术影像特征符合率高于胸部螺旋CT 平扫，差异有统计学意义（P<0.05）。
结论在针对肺结节良恶性进行诊断时，选择CT靶重建技术进行检查能够进一步提高检测的准确度，能够更准确地检测出病灶影像特征，检测图像清晰度更高。
关键词胸部螺旋CT平扫；靶重建技术；恶性肿瘤；肺结节；CT影像特征；诊断准确度中图分类号R445文献标志码A doi10.11966/j.issn.2095-994X.2023.09.10.19Diagnostic Value of Chest Spiral Ct Plain Scan and Target Reconstruction in Pulmo⁃nary NodulesLYU Wei, SUN Yan, CAO Dongdong, WANG XianzhangDepartment of Imaging, Xinyi People's Hospital, Xinyi, Jiangsu Province, 221400 ChinaAbstract Objective To compare the diagnostic value of chest spiral CT plain scan and target reconstruction in pulmonary nodules. Methods A total of 89 patients with pulmonary nodules in Xinyi People's Hospital from July 2021 to May 2023 were enrolled. Chest spiral CT plain scan and target reconstruction were performed on all subjects, the accuracy, sensitivity and specificity data of different detection were collected and analyzed. Results The accuracy, specificity and sensitivity of CT target reconstruction were higher than those of CT plain scan, and the difference was statistically significant (χ2=19.264, 12.857, 7.053, P<0.05). The accuracy of CT target reconstruction was 97.75% (87/89), the specificity was 97.14% (34/35) and the sensitivity was 98.15% (53/54). The coincidence rate of CT target reconstruction was higher than that of chest spiral CT plain scan, and the difference was statistically significant (P<0.05). Conclusion In the diagnosis of benign and malignant pulmonary nodules, CT target reconstruction can further improve the accuracy of detection, more accurately detect lesion image features, and improve the resolution of detection images.Key words Chest spiral CT plain scan; Target reconstruction technique; Malignant tumor; Pulmonary nodules; CT image features; Diagnos⁃tic accuracy肺结节是指肺部影像学检查中发现的直径<3 cm 的圆形或椭圆形病灶，其中良性结节是非癌性的、无恶性潜能的病变，而恶性肺结节则属于肺癌病灶，这就需要对肺部结节的良恶性进行有效鉴别[1]。
多层螺旋CT_血管成像动态图像后处理对脑血管畸形病变的诊断价值研讨
多层螺旋CT血管成像动态图像后处理对脑血管畸形病变的诊断价值研讨王丽，周田，刘斯咪［摘要］目的研究多层螺旋CT血管成像动态图像后处理运用于脑血管畸形病变患者中的效果。
方法随机选取2020年10月—2023年10月聊城市人民医院接诊的70例疑似脑血管畸形病变患者为研究对象，将数字减影血管造影结果作为诊断金标准，并且提供多层螺旋CT血管成像动态图像后处理，应用CT多平面重组、三维容积漫游及联合诊断分析诊断效能。
结果数字减影血管造影阳性检出率为48.57%，CT多平面重组诊断阳性检出率为42.86%，三维容积漫游诊断阳性检出率为44.29%，联合检查阳性检出率为51.43%。
CT多平面重组诊断、三维容积漫游诊断的灵敏度、特异度、准确度相比，差异无统计学意义（P均>0.05）。
联合诊断的灵敏度、准确度显著高于CT多平面重组诊断，差异有统计学意义（P均<0.05）。
三维容积漫游诊断、联合诊断的灵敏度、特异度、准确度比较，差异无统计学意义（P均>0.05）。
结论多层螺旋CT血管成像动态图像后处理中，CT多平面重组联合三维容积漫游诊断运用于脑血管畸形病变患者中具有较高的诊断效能，诊断价值高。
［关键词］脑血管畸形病变；多层螺旋CT血管成像；动态［中图分类号］R816.1［文献标识码］A［文章编号］2095-994X（2024）01-0026-04DOI：10.11966/j.issn.2095-994X.2024.10.01.07Study on the Diagnostic Value of Dynamic Image Post-processing of Multilayer Spiral CT Angi⁃ography for Cerebrovascular Malformation LesionsWANG Li, ZHOU Tian, LIU SimiDepartment of Brain Imaging, Liaocheng People's Hospital, Liaocheng, Shandong Province, 252000China[Abstract] Objective To study the effect of dynamic image post-processing of multilayer spiral CT angiog⁃raphy in patients with cerebrovascular malformation lesions. Methods Seventy patients with suspected cerebro⁃vascular malformation treated in Liaocheng People's Hospital from October 2020 to October 2023 were ran⁃domly selected as the study objects. The results of digital subtraction angiography were used as the diagnostic gold standard, and dynamic image processing of multi-slice spiral CT angiography was provided, application of CT multiplanar reconstruction, three-dimensional volume roaming and combined diagnosis to analyze diagno⁃sistic performance. Results The positive detection rate of digital subtraction angiography was 48.57%, the posi⁃tive detection rate of multi-plane CT recombination diagnosis was 42.86%, the positive detection rate of three-dimensional volume wandering diagnosis was 44.29%, and the positive detection rate of combined examination was 51.43%. There was no significant difference in sensitivity, specificity and accuracy between CT multi-plane recombination diagnosis and three-dimensional volume roaming diagnosis (all P>0.05). The sensitivity and accuracy of combined diagnosis were significantly higher than that of CT multi-plane recombination diag⁃nosis, and the differences were statistically significant (all P<0.05). There was no significant difference in sensi⁃tivity, specificity and accuracy between 3D volume roaming diagnosis and combined diagnosis (all P>0.05).Conclusion In the dynamic image post-processing of multi-slice spiral CT angiography, CT multi-planar re⁃construction combined with three-dimensional volume roaming diagnosis has high diagnostic efficiency and high diagnostic value in patients with cerebral vascular malformation.[Key words]Cerebrovascular malformation; Multilayer spiral CT angiography; Dynamic【作者单位】聊城市人民医院脑科影像科，山东聊城 252000【作者简介】王丽（1986-），女，本科，主治医师，研究方向为中枢神经系统疾病的影像学诊断及多层螺旋CT在心脑血管病中的应用【通信作者】周田（1991-），女，本科，主治医师，研究方向为脑科影像，E-mail：****************26世界复合医学脑血管畸形病变是由于大脑内的血管发生异常，导致大脑局部血管发生不可逆的破坏，局部血液供应异常[1]。
腰椎狭部裂螺旋CT诊断价值论文
腰椎狭部裂的螺旋CT诊断价值【摘要】目的探讨ct在腰椎椎弓峡部不连诊断中的临床价值及提高检出率，提高对该病的认识和诊断水平，方法搜集腰椎螺旋ct容积扫描,经后处理重建检出的腰椎峡部裂55例,分析其mpr、vr成像的ct表现,并与常规椎弓ct轴位像进行对照,评价对峡部裂及其继发病变的显示情况。
结果 mpr冠状面、经椎弓矢状面重建结合vr成像可清晰显示55例108处峡部裂; mpr结合vr图像重建对峡部裂特征以及裂隙骨赘、椎间孔狭窄、椎体滑脱、椎间盘后突的相关继发病变征象显示均有明显优势。
结论 mpr、vr重建成像对峡部裂及其相关继发病变具有良好的显示能力,是检出峡部裂及其继发病变的理想成像方法.【关键词】腰椎椎弓峡部不连螺旋ct 三维重建成像中图分类号：r814.42 文献标识码：b 文章编号：1005-0515（2011）10-349-02lumbar spondylolysis, the diagnostic value of spiral ct xiaxingeayinver · hapashi（xinjiang tacheng district people’s hospital department of radiology834700）【abstract】objective to explore the ct in lumbar vertebral arch isthmus in the diagnosis of clinical value and improve the detection rate,, raise awareness of the disease and diagnosis level, methods to collect the lumbar spine spiralct scanning volume, after reconstruction of detectable lumbar spondylolysis in 55 cases, analysis of its mpr, vr imaging performance of ct, and compared with the conventional vertebral arch axial ct image control, evaluation of spondylolysis and its secondary lesion of the display case. results mpr coronal, the vertebral bow shape surface reconstruction with vr imaging can clearly display in 55 cases 108 spondylolysis; mpr combined with vr image reconstruction on spondylolysis characteristics and fracture osteophyte, intervertebral foramen stenosis, spondylolisthesis, lumbar disc protrusion associated lesions secondary indicia display have obvious advantage. conclusion mpr, vr reconstruction imaging of spondylolysis and its related secondary lesions with good display capability, are detectable in spondylolysis and its secondary lesion of the ideal imaging method.【key words】spondylolysis with spiral ct three dimensional reconstruction．腰椎峡部裂是引起腰腿痛的原因之一,发病率5%~7%.ct是诊断峡部裂的重要方法。
多排螺旋CT在骨关节创伤中的诊断价值论文
多排螺旋CT在骨关节创伤中的诊断价值【摘要】目的：探讨16层螺旋ct三维重建技术在骨关节创伤性疾病中的诊断价值。
方法：骨关节创伤92例，伤患处均行16层螺旋ct横断面扫描，在工作站行三维重建技术后处理，即表面遮盖显示(ssd)、多平面重建(mpr)及容积重建(vr)技术，与x线平片比较，评价3种重建方法对骨折或脱位的显示效果。
结果 16层螺旋横断面检出91例，mpr重建对所有骨折的部位及形态全部明确诊断，获ssd重建技术明确诊断89例，获vr重建技术明确诊断90例。
经16层螺旋ct横断面扫描可发现细小骨折，但立体信息不足；三维重建技术可多角度、全方位观察骨折部位的骨结构空间关系，ssd能立体、逼真地显示骨折及脱位情况，mpr能兼顾软组织的改变，在骨折线走行和移位程度具有优势，在显示细小的骨折线上更具优势。
结论：各种三维重建技术各有优势，与16层螺旋ct联合使用可提高对骨关节损伤诊断的准确性，为临床诊治提供更多准确、直观的信息。
【关键词】16层螺旋ct；骨关节；创伤；三维成像【中图分类号】r816.8 【文献标识码】a 【文章编号】1004-7484（2012）08-0287-03the application value of multi-slice spiral ct in the diagnosisof bone and joint traumawang jiarong1，wang jiaguo2（dazhou huakang hospital 635000,china）【abstract】objective: study of 16 slice spiral ctthree-dimensional reconstruction technique in bone and joint trauma diseases. methods: bone and joint trauma in 92 cases, wound site underwent16slice spiral ct scan, the workstation line3d reconstruction technique after treatment, i.e., shaded surface display ( ssd ), multiple planar reconstruction ( mpr ) and volume rendering ( vr ) technology, and radiographic comparison of3reconstruction methods, evaluation of fracture or dislocation display effect. results: 16layer spiral cross-sectional were detected in 91 cases, mpr reconstruction on all the fracture site and morphology of all definitive diagnosis, ssd reconstruction technique for definitive diagnosis in 89 cases, vr reconstruction technique in diagnosis of 90 cases. the16layer spiral ct scan can be found in small fractures, but the information is insufficient;3d reconstruction technology can be multi-angle, all-round observation of fracture bone structure spatial relationships, ssd three-dimensional, vivid display of fractures and dislocations, mpr can give attention to both the soft tissue changes in the fracture line, walking and the degree of displacement with advantage, in showing the smallfracture line more competitive advantage. conclusion: a variety of three-dimensional reconstruction technique has an advantage each, and the16layer spiral ct combined use of bone and joint injury may improve diagnostic accuracy, clinical diagnosis and treatment provide more accurate, visual information.【key words】16layer spiral ct, bone and joint, trauma, three-dimensional imaging【引言】传统常规x线平片检查骨关节创伤时，可获得正确的诊断信息，但诊断如颅底、颌面部等复杂性骨折时，提供的骨折类型、折端的移位等信息不全面、不准确。
多层螺旋CT_扫描在结肠癌术前分期中的应用
器材应用与技术研究世界复合医学2024年1月第10卷第1期多层螺旋CT扫描在结肠癌术前分期中的应用郑孝田，范柯，耿立杰［摘要］目的探讨多层螺旋CT扫描在结肠癌术前分期中的应用。
方法随机选取2020年1月—2023年10月济宁市第三人民医院收治的80例结肠癌患者为研究对象，均予多层螺旋CT检查，以手术病理结果为依据，评估CT对结肠癌术前TNM分期的诊断准确率及与病理结果的一致性。
结果在结肠癌术前分期诊断中，多层螺旋CT对T1、T2、T3、T4期诊断符合率80.00%、91.67%、100.00%、93.33%，T分期准确率93.75%；对N0、N1、N2期诊断符合率88.00%、85.29%、95.24%，N分期准确率88.75%；对M分期诊断准确率91.25%；对TNM分期诊断结果与手术病理结果一致性较好（kappa= 0.91、0.83、0.81）。
结论结肠癌患者术前予多层螺旋CT检查TNM分期诊断准确率高，且与手术病理结果一致性较好。
［关键词］多层螺旋CT；结肠癌；术前分期；TNM分期；一致性［中图分类号］R735.35［文献标识码］A［文章编号］2095-994X（2024）01-0109-04DOI：10.11966/j.issn.2095-994X.2024.10.01.30Application of Multilayer Spiral CT Scanning in Preoperative Staging of Colorectal CancerZHENG Xiaotian, FAN Ke, GENG LijieDepartment of Medical Imaging, Jining Third People's Hospital (Yanzhou District People's Hospital), Jining, Shandong Province, 272100 China[Abstract] Objective To investigate the application of multilayer spiral CT scanning in preoperative stag⁃ing of colorectal cancer. Methods A total of 80 patients with colon cancer admitted to the Third People's Hospi⁃tal of Jining from January 2020 to October 2023 were randomly selected as the research objects. All patients were examined by multilayer spiral CT. Based on the surgical pathological results, the diagnostic accuracy of CT for preoperative TNM staging of colon cancer and the consistency with pathological results were evaluated.Results In the diagnosis of preoperative staging of colorectal cancer, multilayer spiral CT had a diagnostic con⁃cordance rate of 80.00%, 91.67%, 100.00%, and 93.33% for T1, T2, T3, and T4 stages, and an accuracy rate of 93.75% for T staging. The diagnostic compliance rate for N0, N1, and N2 stages was 88.00%, 85.29%, and 95.24%, and the N staging accuracy rate was 88.75%. The diagnostic accuracy rate for M staging was 91.25%; the diagnostic results for TNM staging were in good agreement with the surgical pathology results (kappa=0.91, 0.83, 0.81). Conclusion The diagnostic accuracy of TNM staging of colorectal cancer by multilayer spiral CT be⁃fore surgery is high, and the consistency with the gold standard is good.[Key words]Multilayer spiral CT; Colorectal cancer; Preoperative staging; TNM staging; Consistency结肠癌为消化系统常见恶性肿瘤，主要表现为排便习惯改变、黏液血便、腹痛等，随着病情进展，肿瘤转移，可造成累及器官功能障碍[1]。
多层螺旋CT三维尿路造影_MSC_省略_U_诊断泌尿系梗阻性疾病临床价值_吴涛
186泌尿系梗阻性疾病在临床发病率很高，泌尿系梗阻性疾病发作时，常因病因诉说不清，或临床症状不典型而容易延误诊断，随着CT 技术的进步，MSCT 大范围扫描，多层螺旋CT 尿路造影（MSCTU）的应用，可多方位观察双肾、输尿管及膀胱等病变的形态，能在定位、病程发展和并发症方面给泌尿系梗阻性疾病的诊断提供更多的影像学依据，为临床选择恰当的治疗方案提供影像学依据。
1 资料与方法1.1 一般资料 选取本院2005年2月—2011年6月行MSCT 检查的泌尿系梗阻性疾病患者62例为观察组，男42 例，女20例，男女之比为2：1，<30岁23例，30~50岁25例，>50岁14例，平均年龄38.4岁。
1.2 仪器 西门子16排螺旋CT 机，电压为120kV，电流为150mA。
1.3 MSCT 扫描方法 自第12胸椎至耻骨联合水平，层厚：5mm，1次闭气完成扫描。
根据病人状态可选择以下几种方法：①非增强的螺旋CT 检查法：在1次摒气下，连续扫描多层，不需要对比剂；②静脉注入对比剂法：平扫和三期动态增强扫描。
增强方式：从上肢静脉经高压注射器注入欧乃派克80~100mL，注射速率2.5m/sL，分别于开始后30s（皮质期）、90s（实质期）、180s（排泌期）进行三期增强扫描，必要时增加延时15~30min 扫描。
1.4 图像后处理技术 将各期原始数据1mm 重建，分别采用最大密度投影（MIP ）、多平面重建（MPR ）、曲面重建（CPR ）和容积再现（VR ）等方法进行图像处理。
2 结 果62例病例中38例诊为肾盂或输尿管结石，平扫时即可发现，CT 值：150~1800Hu，CTU 表现为腔内高密度影，梗阻上方输尿管及肾盂不同程度扩张。
9例为输尿管狭窄，CTU 表现为输尿管狭窄段呈突然狭窄或渐进性，但无明显管壁增厚，伴有狭窄段上方输尿管扩张积水；6例为肾盂或输尿管肿瘤，MSCTU 检查表现为肾盂内乳头状软组织影，输尿管壁局限性增厚、狭窄，伴有输尿管扩张积水，增强扫描实质期病变中度强化；5例为膀胱肿瘤，病变位于膀胱三角区附近，增强扫描实质期肿块略有强化，延迟期膀胱内可见肿块样充盈缺损；2例肾盂输尿管畸形；2例输尿管外压性梗阻，均为转移瘤所致鸟嘴样狭窄，多层螺旋CT三维尿路造影（MSCTU ）诊断泌尿系梗阻性疾病临床价值吴涛（辽宁中医药大学附属二院医学影像科，辽宁 沈阳 110034）摘 要：目的：探讨螺旋CT 对临床表现泌尿系梗阻性疾病的诊断价值。
64排螺旋CT三维重建对隐匿型肋骨骨折的诊断与应用价值
.6中国医疗器械信息 | China Medical Device Information论著Article隐匿型肋骨骨折是指用常规X 射线检查难以发现或难以及时发现的骨折，经过一段时间治疗或者用其他影像学检查方法才能发现的骨折。
在影像学中，肋骨骨折的X 射线片和CT 片的成像特点不同，由于X 射线检查的灵敏度和肋骨解剖学的结构特殊性，对于有错位的骨折可诊断明确，比较轻微和重叠区的骨折难以及时发现，而且由于患者体位、投照位置和角度、以及条件限制，传统X 射线片难以充分地展示骨折的部位和数目，易发生漏诊；CT 检查优于X 射线检查之处在于其密度分辨率高，图像清晰，解剖关系明确，能提供没有组织重叠的横断面图像，且三维重建可进行冠状面、矢状面以及三维立体图像的重建，可以更逼真地显示病变的部位图像，弥补了X 射线片和常规CT 检查的不足，提高了骨折诊断的准确性[1]。
为了研究探讨隐匿型肋骨骨折在64排螺旋CT 三维重建的检查与应用价值，为临床诊疗及法医鉴定提供准确的诊断依据。
对2015年1月~2016年12月来本院诊治的96例胸部外伤患者相关资料进行分析，报道如下。
收稿日期： 2017-08-23作者简介： 黄清海，放射主管技师，福建省医学会影像技术分会第一、二届委员。
64排螺旋CT 三维重建对隐匿型肋骨骨折的诊断与应用价值黄清海 吕超伟 陈雷 蒋晶晶 陈请水 福建中医药大学附属厦门市第三医院CT 、MR 影像科 （福建 厦门 361100）文章编号：1006-6586(2017)22-0006-03 中图分类号：R816.8 文献标识码：A内容提要： 目的：探讨隐匿型肋骨骨折在64排螺旋CT 三维重建的检查与应用价值，为临床诊疗及司法鉴定提供准确的影像诊断依据。
方法：收集本院从2015年1月~2016年12月因胸部外伤入院，怀疑肋骨骨折的患者96例进行检查分析，患者入院后均行DR 检查、CT 常规扫描，部分患者行64排螺旋CT 三维重建。