Multi-slice spiral CT angiography in evaluating donors of living-related liver transplantation

BACKGROUND: During the past years, the number of liver transplantation has increased greatly, but the number of available organs has not increased. In view of the critical shortage of organs, the indications for living-related liver transplantation (LRLT) have broadened since experience with the procedure has been achieved. This study was undertaken to assess the value of multi-slice spiral CT (MSCT) angiography in evaluating the hepatic arterial and veinous anatomy of potential donors for LRLT. METHODS: MSCT was performed after intravenous injection of contrast material at 3 ml/s. The total dose was calculated as 2 ml/kg. Twenty LRLT donors (2 men and 18 women) were subjected to MSCT angiography of hepatic blood vessels. These were generated by volume rendering and maximum intensity projection, while curved planar reformation was added in 5 patients. RESULTS: We identified 10 important hepatic vascular variants in 9 of the 20 donors (4 arterial, 4 venous, and 2 portal venous variants). In hepatic arterial variants, two had a replaced right hepatic artery arising from the superior mesenteric artery, an accessory right hepatic artery from the superior mesenteric artery and a replaced left hepatic artery arising from the left gastric artery. In hepatic venous variants, three had an accessory inferior right hepatic vein and one had two accessory inferior right hepatic veins. In hepatic portal venous variants, two had trifurcation of the main portal vein. CONCLUSIONS: As a non-invasive and reliable method, MSCT angiography is of value in the clinical evaluation of LRLT donors. MSCT angiography should be recommended as a routine preoperative examination for potential LRLT donors.

Comparison of the Imaging Manifestations and Diagnostic Values of Multi-slice Spiral CT and Enhanced MRI Scans of Primary Liver Cancer(PLC)Intrahepatic Lesions

Objective:To compare and analyze the clinical diagnostic value of multi-slice spiral CT and enhanced MRI for primary liver cancer(PLC),and to summarize the imaging findings.Methods:The research subjects in this article were 50 patients with PLC who were admitted to our hospital from 2017 April to 2018 September.After the patients were admitted,they were examined by multi-slice spiral CT and enhanced MRI scanning,and the pathological diagnosis results were followed up.Relevant information was reviewed and analyzed.Results:The detection rate of multi-slice spiral CT was higher than that of MRI in the portal venous phase lesion detection.The difference was statistically significant(P<0.05).The detection rate of lesions in the arterial phase and delayed phase was not statistically significant(P>0.05);the diagnostic accuracy of multi-slice spiral CT was 85.96%,and the diagnostic accuracy of enhanced MRI scanning was 91.11%,which was not statistically significant(P>0.05).MRI scans showed the capsules of primary liver cancer better than CT,but the difference was not statistically significant(P>0.05).Conclusion:In conclusion,both multi-slice spiral CT and enhanced MRI can be used for the effective diagnosis of primary liver cancer intrahepatic lesions.The diagnostic value of the two is equivalent,but enhanced MRI has a slightly higher diagnostic accuracy and can be used as the preferred method.

Study on the combined value of multi-slice spiral CT in the diagnosis of elderly colorectal cancer colorectal cancer tumor markers

Objective:To investigate the value of tumor markers in colorectal cancer with multi-slice spiral CT in the diagnosis of elderly colorectal cancer.Methods:From January 2016 to September 2017 year period, 73 elderly patients with colorectal cancer treated in our hospital were selected as observation group;64 elderly patients with intestinal benign lesions were selected as control group during the same period. Serum samples were collected to detect contents of CEA, CA72-4, CA19-9 and CYFRA21-1 by Roche luminous immunoassay analyzer, and multi slice spiral CT was used.Results:Serum levels of CEA, CA72-4, CA19-9 and CYFRA21-1 levels of the observation group were significantly higher than that of the control group;the positive rate of CEA, CA72-4, CA19-9, CYFRA21-1 and their combined detection were all significantly higher than that of the control group;positive rate of MSCT in the observation group was higher than the control group;positive rates of tumor markers combining with MSCT examination of colorectal cancer were higher than that of combined detection of tumor markers and MSCT examination;but there was no significant difference in positive rate of combined detection of tumor markers and the positive rate of MSCT detection of colorectal cancer.Conclusion:Colorectal cancer tumor markers combined with multi-slice spiral CT in the diagnosis of colorectal cancer in elderly has important research value, can significantly improve the positive rate of diagnosis.

Value of Multi-slice Spiral CT in the Diagnosis and Resectability of Pancreatic Cancer

Objective:To analyze the value of multislice spiral CT in the diagnosis and resectability of pancreatic cancer.Method:56 patients with pancreatic cancer treated in our hospital from January 2018 to October 2019 were selected as the research subjects.All patients underwent multi-phase scanning by multislice spiral CT.According to the results of the images,observe whether the pancreatic cancer has affected the blood vessels surrounding the pancreas,evaluate the resectability based on the results of the examination,and analyze the final results of the operation which was taken as the standard.Results:all the 56 cases presented slightly low density or equal density,and 28 cases had complete outline.Multi-slice spiral assessment of patients’vascular invasion types found that 192 branches can be resected with 70 branches cannot;Multi-slice spiral assessment of the main arterial and venous invasion grades around the pancreas of the patients found that 212 branches can be resected with 50 branches cannot;Multi-slice spiral CT was used to evaluate the resectability of pancreatic cancer compared with surgical results.The accuracy of resectable types of vascular invasion was 72.52%;the accuracy of resectable vascular invasion grades was 79.39%.Conclusion:the application of multi-slice spiral CT in the diagnosis of pancreatic cancer can provide a clear understanding of the condition of vascular invasion and distant metastasis,and the accuracy of assessing resection can reach more than 70.00%,which provides a reference for clinical application.

Analysis of The Value of Multi-Slice Spiral CT and Magnetic Resonance Imaging in The Diagnosis of Carpal Joint Injury

Objective:To analyze the value of multi-slice spiral computed tomography(CT)and magnetic resonance imaging(MRI)in the diagnosis of carpal joint injury.Methods:A total of 130 patients with suspected wrist injuries admitted to the Department of Orthopedics of our hospital from January 2023 to January 2024 were selected and randomly divided into a single group(n=65)and a joint group(n=65).The single group was diagnosed using multi-slice spiral CT,and the joint group was diagnosed using multi-slice spiral CT and magnetic resonance imaging,with pathological diagnosis as the gold standard.The diagnostic results of both groups were compared to the gold standard,and the diagnostic energy efficiency of both groups was compared.Results:The diagnostic results of the single group compared with the gold standard were significant(P<0.05).The diagnostic results of the joint group compared with the gold standard were not significant(P>0.05).The sensitivity and accuracy of diagnosis in the joint group were significantly higher than that in the single group(P<0.05).The specificity of diagnosis in the joint group was higher as compared to that in the single group(P>0.05).Conclusion:The combination of multi-slice spiral CT and MRI was highly accurate in diagnosing wrist injuries,and the misdiagnosis rate and leakage rate were relatively low.Hence,this diagnostic program is recommended to be popularized.

Efficacy of multi-slice spiral computed tomography in evaluating gastric cancer recurrence after endoscopic submucosal dissection

BACKGROUND Recurrence is the major challenge facing endoscopic submucosal dissection(ESD)-based treatment therapies for early gastric cancer(EGC).Urgent development of simple and easy surveillance approaches will enhance clinical treatment of the disease.AIM To explore the role of computed tomography(CT)recurrence in evaluating EGC after ESD treatment.METHODS We retrospectively recruited patients from our endoscopy department,between January 2002 and December 2015,and analyzed their basic characteristics,including symptoms,CT results,and results of endoscopy with biopsy,among others.RESULTS Among a total of 2150 patients EGC patients surveyed,1362 met our inclusion and exclusion criteria and were therefore enrolled in our study.The cohort’s sensitivity of CT for recurrent GC and specificity were 44.22%and 43.86%,respectively,with negative and positive predictive values of 40.15%(275/685)and 48.01%(325/677),respectively.The area under the curve of arterial and venous CT values for recurrent EGC were 0.545,and 0.604,respectively.Receiver operating characteristic curve revealed no statistically significant differences between arterial and venous CT values for recurrent EGC.CONCLUSION Enhanced CT has superior diagnostic efficacy,but less accuracy,compared to gold standard techniques in patients with recurrent EGC.

Investigation on the optical scan condition for imaging of multi-slice spiral CT liver perfusion in rats

Background Multi-slice CT liver perfusion has been widely used in experimental studies of hemodynamic changes in liver lesions, and is usually performed as an adjunct to a conventional CT examination because of its high temporal and spatial resolution, simple protocol, good reproducibility, and ability to measure hemodynamic changes of liver tissues at the capillary level. Experimental rat models, especially those of induced liver cancer, are often used in studies of hemodynamic changes in liver cancer. Carcinogenesis in rats has a similar pathological progression and characteristics resembling those in human liver cancer; as a result, rat models are often used as ideal animal models in the study of human liver cancer. However, liver perfusion imaging in rats is difficult to perform, because rats＇ livers are so small that different concentrations, flow rates, and dose of contrast agents during the CT perfusion scanning can influence the quality of liver perfusion images in rats. The purpose of this study, therefore, was to investigate the optimal scan protocol for the imaging of hepatic perfusion using a deconvolution mathematical method in rats by comparing the results of rats in different injection conditions of the contrast agent, including concentration, rate and time. Methods Plain CT scan conditions in eighty 2-month-old male Wistar rats were 5.0 mm slice thickness, 5.0 mm interval, 1.0 pitch, 120 kV tube voltage, 60 mA tube current, 512x512 matrix, and FOV 9.6 cm. Perfusion scanning was carried out with different concentrations of diatrizoate （19%, 38%, 57%, and 76%）, different injection rates （0.3 and 0.5 ml/s）, and different injection times （1, 2-3, 4-5, and 6 seconds）. The above conditions were randomly matched and adjusted to determine the best perfusion scan protocol. Three-phase contrast-enhanced scanning was performed after CT perfusion. Histological examination of the liver tissues with hematoxylin and eosin stains was done after CT scanning. Results When the concentration of the contrast agent was 19% or 38%, no pseudo-color map was created. The viscosity increased when the concentration of the contrast agent was 76%; so it is difficult to inject the contrast agent at such a high concentration. Also no pseudo-color map was generated when the injection time was short （1, 2-3, and 4-5 seconds） or the injection rate was low （0.3 ml/s）. The best perfusion images and perfusion parameters were obtained during 50 seconds scanning. Each rat was given an injection of 57% diatrizoate at 0.5 mils via the tail vein using a high-pressure syringe for 6 seconds. The perfusion parameters included hepatic blood flow （HBF）, hepatic blood volume （HBV）, mean transit time （MTT） of the contrast agent, capillary permeability-surface area product （PS）, hepatic arterial index （HAl）, hepatic artery perfusion （HAP）, and hepatic portal perfusion （HPP）. All these parameters reflected the perfusion status of liver parenchyma in normal rats. Three phases of enhancement were modified according to the time-density curves （TDCs） of the perfusion imaging： hepatic arterial phase （7 seconds）, hepatic portal venous phase （15 seconds）, and a delayed phase （23-31 seconds）. On examination by microscopy, the liver tissues were pathologically normal. Conclusions The appropriate protocol with multi-slice spiral CT liver perfusion reflected normal liver hemodynamics in rats. This study laid a solid foundation for further investigation of the physiological characteristics of liver cancer in a rat model, and was an important supplement to and reference for conventional contrast-enhanced CT scans.

Diagnostic value of multi-slice spiral CT in aortic dissection

Background Aortic dissection occurs at a low incidence, but is associated with high mortality. It is generally acute onset, complicated and is often misdiagnosed; therefore is a macro vascular disease that poses major threat on patients’ lives. Timely diagnosis and management are essential, so we investigated the diagnostic value of multi-slice spiral CT in aortic dissection. Methods clinical data from 21 patients with confirmed aortic dissection were retrospectively analyzed. All patients had undergone plain and contrasted multi-slice spiral CT scans. Results true lumen and pseudo cavity were clearly revealed in all 21 patients, of which 17 showed intimal flap, four showed intimal calcification and inward displacement, while 2 had thrombosis in the pseudo cavity. As for classification among these 21 patients, 9 had type Ⅰ aortic dissection, including two patients with innominate artery involvement, 1 with celiac trunk involvement and 2 with left renal artery involvement; 2 had type Ⅱ aortic dissection, including 1 patient with innominate artery involvement; Another ten patients had type III aortic dissection, including 2 patients with left subclavian artery involvement and 1 with celiac trunk involvement. Nineteen out of 21 patients had clearly revealed initial rupture. Conclusion multi-slice spiral CT is characterized by rapidness, non-invasiveness and accuracy. It provides clear visualization of the location and scope of aortic dissection, location of the rupture as well as the valves, which makes it a first-choice imaging approach for the diagnosis of aortic dissection.

Multi-slice spiral computed tomography in diagnosing unstable pelvic fractures in elderly and effect of less invasive stabilization

BACKGROUND Older people are more likely to experience pelvic fractures than younger people.Multi-slice spiral computed tomography(CT)uses three-dimensional(3D)reconstruction technology to generate 3D images that can clearly demonstrate the 3D space of fractures and detect fractures at a higher rate.AIM To investigate the clinical value of multi-slice spiral CT 3D reconstruction in the diagnosis of unstable pelvic fractures in the elderly as well as the effect of less invasive stabilization.METHODS A total of 86 patients with unstable pelvic fractures treated between March 2016 and March 2019 underwent femoral supracondylar bone traction before surgery.Pelvic radiography and multi-row spiral CT were performed successively once the patient’s vital signs and hemodynamic indices were stable.Secondary processing of the original data was performed to obtain 3D reconstruction images and determine the vertical displacement of the pelvis.After basic or complete reduction,minimally invasive internal fixation using hollow lag screws was performed.The detection rates of fracture location and classification by X-ray and CT reconstruction were compared.Patients were divided into two groups according to the presence or absence of preoperative 3D reconstruction to compare postoperative reduction,wound healing time,fracture healing time,hospitalization time,visual analog scale(VAS)score,poor internal fixation,and functional recovery.RESULTS The diagnostic coincidence rates of X-rays for pubic symphysis,ilium wing,sacroiliac periarticular,and sacral fractures were lower than those of CT reconstruction.The coincidence rate of CT reconstruction in the clinical classification of pelvic fractures was 100%,whereas 11 cases were misdiagnosed by X-ray;the total coincidence rate was 87.21%.The total excellent and good rates of postoperative reduction were significantly higher in the study group than in the control group(P<0.05).The wound healing,fracture healing,and hospitalization times were significantly shorter in the study group than in the control group(P<0.05).The VAS scores decreased in both groups postoperatively and were lower in the study group than in the control group(P<0.05).The total incidence of poor postoperative internal fixation was significantly lower in the study group than in the control group(P<0.05).The overall rate of postoperative functional recovery was significantly higher in the study group than in the control group(P<0.05).CONCLUSION Multi-slice spiral CT has high guiding significance for the diagnosis,classification,and treatment of unstable pelvic fractures in the elderly.Preoperative 3D reconstruction can effectively shorten the operation time and promote fracture healing,while minimally invasive internal fixation can effectively reduce pain and promote functional recovery of fracture sites,making it worthy of clinical application.

全身磁共振弥散加权成像联合多层螺旋CT对多发性骨髓瘤的诊断价值

目的 探究全身磁共振弥散加权成像(WB-DWI)联合多层螺旋CT对多发性骨髓瘤的诊断价值。方法 选取2019年6月~2023年1月于我院收治的80例多发性骨髓瘤患者为研究对象,并按照检测方式将其分为WB-DWI组(n=25)、多层螺旋CT组(n=25)、联合组(n=30)。分析WB-DWI、多层螺旋CT单一及联合对患者累及部位的检出率,分析两种检查方式单一及联合对多发性骨髓瘤的检出情况,通过ROC曲线分析WB-DWI、多层螺旋CT联合诊断多发性骨髓瘤的临床价值。结果 检测结果主要与Durie-Salmon分期、国际骨髓瘤分期相关(P<0.05)。与WB-DWI、多层螺旋CT单一检测对比,联合检测患者累及部位的检出率较高(P<0.05)。在多发性骨髓瘤诊断中WB-DWI、多层螺旋CT联合检测高于单一检测(P<0.05)。与WB-DWI、多层螺旋CT单项诊断对比,两项联合诊断多发性骨髓瘤的敏感度、特异性、准确性均较高(P<0.05)。结论 相较于WB-DWI、多层螺旋CT单项检测,联合检测可有效提升患者病理检出情况,提高对多发性骨髓瘤的诊断价值。

采用MSCT灌注成像检查评估周围型非小细胞肺癌分化程度的可行性分析

目的分析多层螺旋CT(MSCT)灌注成像检查评估周围型非小细胞肺癌(NSCLC)分化程度的可行性。方法选取本院2017年7月至2018年10月本院收治确诊的52例周围型NSCLC患者作为研究对象,比较不同分化级别患者的MSCT灌注成像参数;分析灌注参数与分化程度的相关性。结果高分化、中分化周围型NSCLC患者BF、BV、PS、MTT及PH数值均高于低分化周围型NSCLC,以高分化周围型NSCLC的BF、BV、PS、MTT及PH数值最高。各个灌注参数值,其中高分化、中分化周围型NSCLC的BF、PH与低分化周围型NSCLC比较差异显著(P<0.05),三者BV、PS及MTT数值比较,均为明显差异(P>0.05)。周围型NSCLC患者灌注参数BF、PH与其分化程度成负相关,且相关性显著(P<0.05)。结论MSCT灌注成像检查可有效反映周围型NSCLC的分化程度,其灌注参数中BF、PH对评估其分化程度有一定帮助,与周围型NSCLC分化程度具有一定相关性。

MSCT三维骨重建技术在髋关节骨折诊断及治疗中的应用

目的探讨多排螺旋CT(MSCT)三维骨重建技术在髋关节骨折诊断及治疗中的应用。方法选择2020年1月~2022年8月我院收治98例髋关节骨折患者,均行常规X线检查和MSCT检查,并进行MSCT三维重建,观察X线片、二维MSCT图像和MSCT骨三维重建图像。结果手术显示,98例患者共发现101处髋中骨折,其中35处为股骨头骨折,24处为股骨颈骨折,21处为粗隆间骨折,21处为髋臼骨折。X线漏检12处骨折,二维CT漏检7处骨折,MSCT三维骨重建未见漏检,其对髋关节骨折检出率显著高于X线及二维CT(P<0.05)。MSCT三维重建对髋臼骨折分型正确检出率高于二维CT和X线,但比较差异未见统计学意义(P>0.05)。根据患者术前MSCT骨三维重建资料设计治疗方案,术中所见与资料吻合,患者手术时间(106.30±27.40)min,术中出血量(356.60±54.17)mL,术中透视时间(21.35±5.11)s,骨折愈合时间(80.46±12.29)d;术后随访显示治疗优良率为94.90%,且暂未发生并发症。结论MSCT三维骨重建可清晰显示髋关节骨折情况,有利于髋关节骨折及骨折分型诊断,对临床手术方案制定及术后关节功能恢复具有重要价值。

多层螺旋CT的MPR及VR重建技术对外伤性肋骨骨折的诊断价值

目的探讨多层螺旋CT(MSCT)多平面重建(MPR)、容积再现(VR)技术对外伤性肋骨骨折的诊断价值。方法回顾性分析2022年1—10月四川大学华西医院龙泉医院收治的90例外伤性肋骨骨折患者的MSCT图像,根据轴位薄层图像分别结合MPR、VR重建图像进行诊断,比较两种重建技术对肋骨骨折的诊断价值。结果90例患者共371处肋骨骨折,其中错位骨折254处,MPR及VR的诊断敏感度率分别为98.03%(249/254)、96.85%(246/254),误诊率分别为0.40%(1/250)、0.40%(1/247),MPR及VR对肋骨错位骨折诊断的敏感度及误诊率比较,差异无统计学意义(P>0.05)。MPR及VR对117处无错位骨折的诊断敏感度分别为88.03%(103/117)、74.36%(87/117),误诊率分别为2.83%(3/106)、5.43%(5/92);MPR及VR对总的肋骨骨折诊断敏感度分别为94.88%(352/371)、89.76(333/371),误诊率分别为1.12%(4/356)、1.77%(6/339);MPR对无错位骨折及总的肋骨骨折诊断敏感度高于VR,差异有统计学意义(P<0.05),而误诊率差异无统计学意义(P>0.05)。VR平均诊断时间(174.59±21.64)s短于MPR平均诊断时间(211.66±27.70)s,差异具有统计学意义(P<0.05)。结论VR诊断用时短,MPR对无错位骨折敏感度更高,合理利用两种重建技术能提高肋骨骨折诊断效率和准确性。

术前多排螺旋CT三期增强扫描对非小细胞肺癌纵隔淋巴结转移的诊断价值

目的探讨多排螺旋CT(MSCT)三期增强扫描对非小细胞肺癌(NSCLC)纵隔淋巴结转移(MLNM)中的术前诊断价值。方法回顾性分析80例NSCLC患者的临床资料,术前均行MSCT三期增强扫描,以术后病理结果为金标准,使用Kappa一致性检验评价MSCT三期增强扫描在术前诊断MLNM的诊断效能。结果术后病理检查证实80例NSCLC患者中,N0期31例,N1期24例,N2期25例,其中MLNM 25例(31.25%);术前MSCT诊断N0期34例,N1期24例,N2期22例,术前MSCT对NSCLC患者N分期诊断与术后病理一致性一般(Kappa=0.735);25例合并MLNM患者中,术前MSCT确诊19例,其对NSCLC患者MLNM的诊断与病理结果一致性一般(Kappa=0.531),其诊断的灵敏度、特异度、准确度、阳性预测值和阴性预测值分别为76.00%、80.00%、78.75%、63.33%和88.00%;纵隔淋巴结转移率在不同肿瘤直径、胸膜凹陷与否、不同肿大淋巴结位置、累及粗大肺静脉与否以及不同淋巴结短径的NSCLC患者间比较均有统计学意义(P<0.05)。结论术前MSCT三期增强扫描诊断NSCLC患者MLNM具有一定的准确性,结合原发病灶大小、胸膜凹陷、肿大淋巴结位置、累及粗大肺静脉等多方面信息可为淋巴结清扫提供重要参考。

64排螺旋CT冠状动脉成像诊断老年冠状动脉狭窄的应用价值

目的:探讨64排螺旋CT冠状动脉(以下简称冠脉)成像诊断老年冠状动脉狭窄的应用价值。方法:选择2020年1月—2023年6月收治的老年冠心病患者50例,均接受64排128层螺旋CT(64-SCTA)及冠状动脉造影(CAG)检查,以CAG检查结果作为冠脉狭窄诊断的“金标准”,计算64-SCTA检查的诊断价值指标,包括灵敏度、特异度和准确度。结果:64-SCTA诊断冠状动脉狭窄的灵敏度、特异度及准确度分别为64.82%,94.35%和70.80%;进一步去除钙化节段,64-SCTA诊断冠状动脉狭窄的灵敏度、特异度及准确度分别为84.09%,97.33%和84.09%,其中诊断灵敏度和准确度较前显著提高,差异有统计学意义(P<0.05),特异度较前提高,但是差异无统计学意义(P>0.05)。结论:64排螺旋CT冠状动脉成像检查诊断老年冠状动脉狭窄的灵敏度和准确度较高。

多层螺旋CT血管造影(MSCTA)诊断颅内动脉瘤的影像学特征及诊断效能研究

分析多层螺旋CT血管造影(multislice CT angiography,MSCTA)诊断颅内动脉瘤的影像学特征及诊断效能。选取河北省衡水市第五人民医院2019年1月—2022年12月收治的80例颅内动脉瘤患者为研究对象,根据随机数表法将所有患者分为对照组与观察组,每组各40例。对照组接受数字减影血管造影技术(digital subtraction angiography,DSA)诊断,观察组接受MSCTA诊断。对比两组患者不同部位的脑动脉瘤检出率、两种检测方法下的图像质量分级情况及诊断效能。研究发现,针对颅内动脉瘤的临床诊断,可为患者实施MSCTA检查,此检查与DSA检查相比同样具有理想的诊断价值,动脉瘤检出率与图像质量较高,但与DSA此类有创检查项目相比,MSCTA对患者的影响更小,具有便捷、实惠等优势,可应用于临床诊断中。

螺旋CT三维扫描重建联合3D打印用于髋臼骨折手术的价值研究

目的:探讨螺旋CT三维扫描重建联合3D打印技术在髋臼骨折外科手术中的应用价值。方法:选取2018年1月至2020年12月新疆维吾尔自治区人民医院收治的71例髋臼骨折并接受手术治疗的患者,依据治疗方式的不同将其分为观察组(38例)和对照组(33例),观察组采用螺旋CT三维重建,并以3D打印辅助内固定治疗,对照组采用常规手术治疗。比较两组患者手术效果及恢复情况。结果:观察组骨折复位质量评分及分项百分制髋功能评分高于对照组,术中出血量、术中透视次数、手术用时及住院时间均明显低于对照组,差异均有统计学意义(t=23.426、4.216、3.425、17.783,P<0.05);观察组和对照组骨折复位优良率分别为94.74%和78.79%,差异有统计学意义(x^(2)=4.059,P<0.05);观察组患者髋关节功能评分中疼痛、功能及关节活动均高于对照组,差异有统计学意义(t=-4.873、-5.776、-6.247,P<0.05);观察组并发症发生率明显低于对照组,差异有统计学意义(x^(2)=4.059,P<0.05)。结论:在髋臼骨折围术期应用螺旋CT三维重建结合3D打印可进一步保证手术的安全性和可行性,提高手术质量和效率,促进术后恢复。

腔内超声、MSCT联合血清CA125对卵巢囊腺肿瘤的诊断价值探讨

目的探讨腔内超声、MSCT影像特征及CA125联合检查在卵巢囊腺肿瘤诊断的应用价值。方法回顾性分析116例女性(130个病灶)卵巢囊腺肿瘤患者超声、MSCT、CA125检查及病理资料,比较单独检查及联合检查在良、恶性囊腺肿瘤间诊断效能差异及影像学特征分析。结果病理结果显示囊腺瘤93个,囊腺癌37个;腔内超声图像特征如包膜、囊内回声、壁结节、腹腔积液、腹膜及淋巴结转移、血流显示在两组间均具有统计学差异(P<0.05);MSCT图像特征如CT值、边界、形态、腹盆腔积液、腹膜及淋巴结转移、强化程度在两组间均具有统计学差异(P<0.05);良性组患者CA125水平显著低于恶性组患者,具有统计学差异(P<0.05);腔内超声、MSCT、CA125联合检查对卵巢囊腺肿瘤的诊断效能均高于各项单独检查,具有统计学差异(P<0.05)。结论卵巢囊腺肿瘤的腔内超声、MSCT、CA125检查具有显著差异,联合检查对两者检出率均高于单独检查,对肿瘤性质判断具有更高的准确性,可为临床诊疗工作提供可靠依据。

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

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。

踝关节骨折的低剂量螺旋CT影像检查效果

目的 探讨踝关节骨折的低剂量螺旋CT影像检查效果。方法 研究中60例踝关节骨折患者均在2020年1月—2023年7月随机抽选自我院;临床对所有踝关节骨折患者合理展开常规剂量螺旋CT扫描操作以及低剂量螺旋CT扫描操作,对两种方法的辐射剂量、诊断符合率、客观性图像质量指标以及图像清晰度分级展开比较。结果 与常规剂量CT诊断剂量长度乘积(DLP)以及CT容积剂量指数(CTDIvol)展开比较,低剂量CT测定结果均更低(均P <0.05);低剂量CT与常规剂量CT对于总诊断符合率、CT值、噪声值(SD)、图像信噪比(SNR)以及图像清晰度展开比较,结果均未呈现出统计学差异(P> 0.05)。结论 临床对踝关节骨折患者在实施CT诊断期间,发现低剂量CT以及常规剂量CT的诊断效果均较为明显,对于踝关节的损伤位置均可以明确诊断,但低剂量螺旋CT扫描运用,可将辐射剂量显著降低,所以安全性更高。