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.

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.

Multi-slice spiral computed tomography in differential diagnosis of gastric stromal tumors and benign gastric polyps,and gastric stromal tumor risk stratification assessment

BACKGROUND The biological characteristics of gastric stromal tumors are complex,and their incidence has increased in recent years.Gastric stromal tumors(GST)have potential malignant tendencies,and the probability of transformation into malignant tumors is as high as 20%-30%.AIM To investigate the value of multi-slice spiral computed tomography(MSCT)in the differential diagnosis of GST and benign gastric polyps,and GST risk stratification assessment.METHODS We included 64 patients with GST(GST group)and 60 with benign gastric polyps(control group),confirmed by pathological examination after surgery in PLA General Hospital,from January 2016 to June 2021.The differences in the MSCT imaging characteristic parameters and enhanced CT values between the two groups before surgery were compared.According to the National Institutes of Health’s standard,GST is divided into low-and high-risk groups for MSCT imaging characteristic parameters and enhanced CT values.RESULTS The incidences of extraluminal growth,blurred boundaries,and ulceration in the GST group were significantly higher than those in the control group(P<0.05).The CT values and enhanced peak CT values in the arterial phase in the CST group were higher than those in the control group(P<0.05).The MSCT differential diagnosis of GST and gastric polyp sensitivity,specificity,misdiagnosis rate,missed diagnosis rate,and areas under the curve(AUCs)were 73.44%,83.33%,26.56%,16.67%,0.784,respectively.The receiver operating characteristic curves were plotted with the arterial CT value and enhanced peak CT value,with a statistical difference.The results showed that the sensitivity,specificity,misdiagnosis rate,missed diagnosis rate,and AUC value of arterial CT in the differential diagnosis of GST and gastric polyps were 80.18%,62.20%,19.82%,37.80%,and 0.710,respectively.The sensitivity,specificity,misdiagnosis rate,missed diagnosis rate,and AUC value of the enhanced peak CT value in the differential diagnosis of GST and gastric polyps were 67.63%,60.40%,32.37%,39.60%,and 0.710,respectively.The incidence of blurred lesion boundaries and ulceration in the high-risk group was significantly higher than that in the low-risk group(P<0.05).The arterial phase and enhanced peak CT values in the high-risk group were significantly higher than those in the low-risk group(P<0.05).CONCLUSION Presurgical MSCT examination has important value in the differential diagnosis of GST and gastric benign polyps and can effectively evaluate the risk grade of GST patients.

Three-dimensional Imaging of Multi-slice Spiral CT in Bronchial Artery Correlative Study on Blood Supply of Central Lung Cancer and Its Clinical Significance

Objective: To evaluate three-dimensional bronchial artery imaging charactersin central lung cancer and applied values with multi-slice spiral CT (MSCT) to provide theoreticalevidence on blood supply and intervention therapy. Methods: Eighteen patients with central lungcancer underwent MSCT with real time helical thin-slice CT scanning. Three-dimensional bronchialartery reconstruction was done at the console work-station. The space anatomical characters ofbronchial artery were observed through different rotations. Results: For 6 cases, thethree-dimensional images of bronchial artery (33.33%) could exactly show the origins, the routes(lung inner segment and mediatism segment) and the diameters of bronchial arteries. Vision rate ofbronchial arteries was the highest in pulmonary artery stricture and truncation groups, and thevessels' diameter became larger apparently. These characters demonstrated blood supply of this kindof central lung cancer come from bronchial artery. Volume rendering images were the best ones amongthree-dimensional images. Conclusion: Three-dimensional imaging with MSCT in bronchial artery canreveal the anatomical characters of bronchial artery and provide theoretical evidence on bloodsupply and intervention therapy of central lung cancer.

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.

Arterial phase of biphase enhancement spiral CT in diagnosis of small hepatocellular carcinoma

Objectives: To evaluate the value of the arterial phase(AP) of biphase enhanced spiral CT(SCT) in the di-agnosis of small HCC and to investigate the criteria,initial time, ending time and duration of AP.Methods: From May 1995 to March 1999, patients withsmall HCC proved surgically and pathologically in-cluding 49 patients (n=53) in group A, 148 (n=186) ingroup B and 52 (n=52) in group C were collected.Biphase dynamic enhanced SCT scans were performedin all patients of the three groups and additional sin-gle-level dynamic scans only done in the group C. Thedetectability, diagnostic accuracy of lesions and en-hancement of the lesions in AP were analyzed statisti-cally. In addition, the initial time, ending time andduration of AP were measured.Results: The results of the group A showed the de-tectability of small HCC was 88.68% in AP and90.57% in both phases, higher than those by ultra-sound. Markedly enhanced lesions in AP accounted for76% and 78% in the groups B and C respectively. Theinitial time, ending time and duration of AP measuredon single-level dynamic scans were 16.9s, 39.6s and22.7s on average respectively.Conclusions: The biphase dynamic SCT especially itsarterial phase appears to be very valuable in diagnosingsmall HCCs. In light of short duration of AP, under-standing and strict control of AP is obviously impera-tive.

Clinical Effect of Magnetic Resonance Imaging and 64-slice Spiral CT in the Diagnosis of Ischemic Heart Disease Patients

Objective:To explore the clinical methods and clinical effects of applying magnetic resonance imaging(MRI)and 64・slice spiral computed tomography(CT)in the diagnosis of patients with ischemic heart disease.Methods:100 patients with ischemic heart disease were selected as the research objects.Selecting the patients from May 2020 to May 2021 as a sample,the patients were divided into two groups,and different diagnostic methods were used to compare the clinical diagnosis effects.Results:In terms of the diagnostic accuracy of the two groups of patients,the maximum value was 92.00%(experimental group)and the minimum value was 80.00%(control group).There was a big difference in data between the two groups,P<0.05,which was statistically significant.The patient9s(experimental group)diagnosis accuracy rate is highe Conclusion:In the process of research work for patients with ischemic heart disease,it is particularly important to diagnose the patients.The combined application of and 64-slice spiral CT can improve the clinical diagnosis efficiency and achieve significant results.

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.

Use of various CT imaging methods for diagnosis of acute ischemic cerebrovascular disease

Thirty-four patients with cerebral infarction and 18 patients with transient ischemic attack were examined by multi-slice spiral CT scan, CT perfusion imaging, and CT angiography within 6 hours after onset. By CT perfusion imaging, 29 cases in the cerebral infarction group and 10 cases in the transient ischemic attack group presented with abnormal blood flow perfusion, which corresponded to the clinical symptoms. By CT angiography, various degrees of vascular stenosis could be detected in 41 patients, including 33 in the cerebral infarction group and eight in the transient ischemic attack group. The incidence of intracranial artery stenosis was higher than that of extracranial artery stenosis. The intracranial artery stenosis was located predominantly in the middle cerebral artery and carotid artery siphon, while the extracranial artery stenosis occurred mainly in the bifurcation of the common carotid artery and the opening of the vertebral artery. There were 34 cases （83%） with convict vascular stenosis and perfusion abnormalities, and five cases （45%） with perfusion abnormalities but without convict vascular stenosis. The incidence of cerebral infarction in patients with National Institutes of Health Stroke Scale scores 〉 5 points during onset was significantly higher than that in patients with National Institutes of Health Stroke Scale scores 〈 5 points. These experimental findings indicate that the combined application of various CT imaging methods allows early diagnosis of acute ischemic cerebrovascular disease, which can comprehensively analyze the pathogenesis and severity of acute ischemic cerebrovascular disease at the morphological and functional levels.

Multi-phase helical CT in diagnosis of early hepatocellular carcinoma

OBJECTIVES: To analyze the characteristics of early hepatocellular carcinoma by using multi-phase helical CT and assess the value of this method. METHODS: Multi-phase helical CT findings were reviewed double-blindly by radiologists. RESULTS: Altogether 24 lesions were found in 21 patients. In plain CT, the lesions were seen as hypodense or isodense areas. After contrast enhancement, 87.5% of the lesions showed regular or irregular hyperdense enhancement, whereas 12.5% demonstrated tumor vessels in arterial phase, which became hypodensed or isodensed nodules in portal phase or the hypodensed in delayed phase. The prevalence of density changes showed a hypo-hyper-hypo and hypo-hypo pattern. CONCLUSIONS: Multi-phase helical CT could reflect the blood supply of early hepatocelluar carcinoma, and is also convenient for the differential diagnosis of hepatic cavernous angioma, metastatic tumor, hepatic nodulous hyperplasia, and hepatic inflammatory granuloma.

Analysis of CT and MRI in the Diagnosis of Shoulder Joint Injury

Objective: To observe the effect of multi-slice spiral CT and magnetic resonance imaging (MRI) in the diagnosis of shoulder injury. Methods: 120 patients with shoulder injury who were treated in our hospital (January 2020 to December 2021) and underwent surgical treatment were diagnosed as shoulder injury. They were divided into CT group, MRI group and joint diagnosis group. The detection rates of the two methods were compared. Results: In the diagnosis of shoulder injury, MRI group was higher than CT group, and the joint diagnosis group was higher than the other two groups. Conclusion: In the diagnosis of shoulder injury, the joint examination of multi-slice spiral CT and magnetic resonance imaging (MRI) can obtain a higher diagnostic rate and ideal effect.

Analysis of the Application Value of MRI and CT Diagnosis of Lumbar Disc Herniation

Objective:To analyze the application value of MRI and CT diagnosis for those with lumbar disc herniation.Methods:The data of 62 patients with LDH treated in our hospital from January 2019 to December 2019 were analyzed retrospectively.All patients were diagnosed as LDH after operation,and 62 patients were treated with MRI and CT.The accuracy of CT and MRI in the diagnosis was analyzed according to the gold standard of operation results.Results:62 patients were diagnosed as LDH after operation,including 25 cases with intervertebral disc herniation,12 cases with intervertebral disc prolapse,8 cases with intervertebral disc nodule,7 cases with intervertebral disc dissociation as well as 10 cases with intervertebral disc bulge.The accuracy of MRI diagnosis(95.16%)was higher than that of CT(75.81%),and the difference was statistically significant(P<0.05).Conclusion:For the diagnosis of LDH,MRI is more accurate,but CT is faster and cheaper.Both of them have their own advantages can be chosen clinically according to the actual situation of patients on the basis of ensuring the diagnostic accuracy.

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。

Using receiver operating characteristic curves to evaluate the diagnostic value of the combination of multislice spiral CT and alpha-fetoprotein levels for small hepatocellular carcinoma in cirrhotic patients

BACKGROUND： The various combination of multiphase enhancement multislice spiral CT （MSCT） makes the diagno- sis of a small hepatocellular carcinoma （sHCC） on the back- ground of liver cirrhosis possible. This study was to explore whether the combination of MSCT enhancement scan and alpha-fetoprotein （AFP） level ficiency for sHCC. could increase the diagnostic ef- METHODS： This study included 35 sHCC patients and 52 cir- rhotic patients without image evidence of HCC as a control group. The diagnoses were made by three radiologists em- ploying a 5-point rating scale, with postoperative pathologic results as the gold standard. Receiver operating characteristic （ROC） curve analysis was performed to evaluate the diag- nostic value of the three MSCT combination modes （arterial phase＋portal-venous phase, arterial phase＋delayed phase, arterial phase＋portal-venous phase＋delayed phase） and AFP levels for sHCC on the background of liver cirrhosis. RESULTS： The area under ROC curve （AUC）, sensitivity, and specificity of the combination of arterial phase＋portal- venous phase＋delayed phase were 0.93, 93%, and 82%, respectively. The average AUC of the arterial phase＋portal- venous phase＋delayed phase combination was significantly greater than that of the arterial phase＋portal-venous phase （AUC=0.84, P=0.01） and arterial phase＋delayed phase （AUC=0.85, P=0.03）. Arterial phase＋portal-venous phase had a smaller AUC （0.84） than arterial phase＋delayed phase （0.85）, but the difference was insignificant （P=0.15）. After combining MSCT enhancement scan with AFP, the AUC, sensitivity, and specificity were 0.95, 94%, and 83%, respectively, indicating a greatly increased diagnostic efficiency for sHCC. CONCLUSIONS： The combination of AFP and 3 phases MSCT enhancement scan could increase the diagnostic efficiency for sHCC on the background of liver cirrhosis. The application of ROC curve analysis has provided a new method and reference in HCC diagnosis.

多层螺旋CT联合磁共振对新鲜与陈旧骨质疏松椎体压缩性骨折的鉴别诊断

目的:探讨多层螺旋CT联合磁共振对新鲜与陈旧骨质疏松椎体压缩性骨折的鉴别诊断价值。方法:采用回顾性分析的方法,选择2020年1月-2022年12月在我院诊治的80例骨质疏松椎体压缩性骨折患者作为研究对象。通过病史和手术病理等综合诊断确诊为陈旧骨质疏松椎体压缩性骨折的患者35例,确诊为新鲜骨质疏松椎体压缩性骨折的患者45例,将前者作为陈旧骨折组,后者作为新鲜骨折组。所有患者均经过多层螺旋CT、磁共振(MRI)检查,比较新鲜与陈旧骨质疏松椎体压缩性骨折患者MRI和多层螺旋CT表现,比较多层螺旋CT、MRI对80例骨质疏松椎体压缩性骨折患者新鲜与陈旧的诊断准确率,并建立受试者工作特征曲线,比较多层螺旋CT联合MRI对新鲜与陈旧骨质疏松椎体压缩性骨折的诊断效能。结果:通过MRI和多层螺旋CT发现,新鲜骨折组椎体滑脱、椎体骨小梁结构紊乱硬化、椎间盘真空征及变性发生率低于陈旧骨折组,而脊椎旁软组织影、脊髓挫伤出血、骨折线清晰锐利发生率高于陈旧骨折组,差异均有统计学意义(P<0.05)。多层螺旋CT与MRI联合诊断准确率明显高于MRI和多层螺旋CT单一诊断,差异有统计学意义(P<0.05),但多层螺旋CT与MRI单一诊断的准确率比较,差异无统计学意义(P>0.05)。多层螺旋CT联合MRI对新鲜与陈旧骨质疏松椎体压缩性骨折诊断效能明显高于多层螺旋CT或MRI单一诊断,差异有统计学意义(P<0.05)。结论:多层螺旋CT、MRI对于新鲜与陈旧骨质疏松椎体压缩性骨折均具有重要诊断价值,虽然两种诊断方式单一应用的诊断准确率无明显差异,但多层螺旋CT联合MRI可进一步提升新鲜与陈旧骨质疏松椎体压缩性骨折的诊断准确率和诊断效能。

The diagnostic value of 3D spiral CT imaging of cholangiopancreatic ducts on obstructive jaundice

Objective: Computerized tomography (CT) plays an important role in the diagnosis of diseases of biliary tract. Recently, three dimensions (3D) spiral CT imaging has been used in surgical diseases gradually. This study was designed to evaluate the diagnostic value of 3D spiral CT imaging of cholangiopancreatic ducts on obstructive jaundice. Methods: Thirty patients with obstructive jaundice had received B-mode ultrasonography, CT, percutaneous transhepatic cholangiography (PTC) or endoscopic retrograde cholangiopancreatography (ERCP), and 3D spiral CT imaging of cholangiopancreatic ducts preoperatively. Then the diagnose accordance rate of these examinational methods were compared after operations. Results: The diagnose accordance rate of 3D spiral CT imaging of cholangiopancreatic ducts was higher than those of B-mode ultrasonography, CT, or single PTC or ERCP, which showed clear images of bile duct tree and pathological changes. As to malignant obstructive jaundice, this examinational technique could clearly display the adjacent relationship between tumor and liver tissue, biliary ducts, blood vessels, and intrahepatic metastases. Conclusion: 3D spiral CT imaging of cholangiopancreatic ducts has significant value for obstructive diseases of biliary ducts, which provides effective evidence for the feasibility of tumor-resection and surgical options.

CT增强扫描结合后处理技术对良恶性甲状腺病变的诊断价值

目的观察CT增强扫描结合后处理技术对良恶性甲状腺病变的诊断价值。方法将本院2018年9月到2022年9月期间收集的134例经病理证实的甲状腺结节患者作为研究对象,所有患者均接受了CT增强扫描结合后处理技术,探讨该技术在甲状腺良恶性病变诊断中的价值,并比较不同患者间图像特征、平扫期CT值、动脉期CT值和静脉期CT值差异,同时关注病灶内钙化情况。结果134例甲状腺结节患者中,病理检测恶性74例,良性60例,螺旋CT增强诊断恶性76例,良性58例,以病理学检测为金标准,螺旋CT增强扫描诊断甲状腺良恶性结节敏感度为97.30%,特异性为93.33%,准确率为95.52%;恶性组甲状腺结节不规则形态、边界模糊及肿大淋巴结比例显著高于良性组(P<0.05);两组间平扫期CT值、动脉期CT值以及静脉期CT值差异比较无统计学意义(P>0.05);恶性组有钙化点比例显著高于良性组(P<0.05)。结论螺旋CT增强扫描及后处理技术在甲状腺良恶性结节鉴别诊断中具有重要意义,图像特征及钙化特征显示较为明显,为临床诊治提供重要参考依据。

多层螺旋CT在婴儿脐疝的临床价值

目的 探讨多层螺旋CT(MSCT)在婴儿脐疝的临床价值。方法 回顾性分析2015年2月~2023年8月佛山市妇幼保健院在临床诊断为脐疝且行MSCT检查的10例脐疝婴儿资料,男6例,女4例,年龄0~7月,中位年龄2月,在CT图像上观察脐疝的影像学表现,测量疝环宽度及疝颈比,并追踪其临床治疗效果。结果 10例患儿均表现为脐部不同程度向前突起,腹壁肌肉中断,其疝出物为充气肠管或脂肪,或两者混合的软组织影;疝环大小为3.1~33.2 mm,中位值14.9 mm,疝颈比为0.18~2.06,中位值1.49。疝环/疝颈比最大的1例患儿行脐疝修补术,其余9例患儿采用保守治疗,均取得良好的治疗效果。结论 MSCT可为评估婴儿脐疝提供客观的影像学证据,在脐疝的诊断和治疗选择中具有潜在优势。

三期增强CT扫描联合血清AFP和VEGF水平诊断肝细胞癌患者临床研究

目的探讨多层螺旋CT(MSCT)三期增强扫描联合血清甲胎蛋白(AFP)和血管内皮生长因子(VEGF)水平对肝内占位性病变的诊断价值。方法2021年1月~2022年12月我院诊治的肝内占位性病变患者82例,均接受MSCT平扫和三期增强扫描检查,采取细针穿刺活检或手术组织行常规病理学检查。采用免疫化学发光法检测血清AFP水平,采用ELISA法检测血清VEGF水平。绘制受试者工作特征曲线(ROC)并计算曲线下面积(AUC)分析三期增强CT扫描联合血清AFP和VEGF水平诊断肝细胞癌(HCC)的效能。结果在本组82例肝占位患者中,病理学检查诊断肝细胞癌(HCC)43例,局灶性增生性结节(FPN)39例,MSCT扫描诊断原发性肝癌(PLC)36例,诊断良性病灶46例;HCC病灶平扫及增强动脉期、门静脉期和延迟期CT值分别为(33.2±1.7)、(68.2±2.4)、(61.5±1.2)和(31.9±1.6),均显著低于FPN病灶【分别为(40.1±2.5)、(92.5±3.1)、(76.8±2.6)和(63.2±3.7),P<0.05】;HCC患者血清AFP和VEGF水平分别为(310.5±25.3)ng/mL和(97.6±62.1)ng/L,均显著高于FPN患者【分别为(23.6±3.2)ng/mL和(65.4±19.8)ng/L,P<0.05】;MSCT诊断恶性病变的灵敏度和特异度分别为81.4%和97.4%,采用CT联合血清指标诊断可以将诊断的灵敏度和特异度都提高到97.4%。结论应用三期增强CT扫描扫描联合血清AFP和VEGF水平对判断肝内占位性病变的性质有帮助,值得进一步研究。