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.

Imaging Effect and Accuracy Analysis of 64-Slice Spiral CT in the Diagnosis of Coronary Artery Stenosis

Objective:To analyze the imaging effect and accuracy of 64-slice spiral CT in the diagnosis of coronary artery stenosis.Methods:30 patients with suspected coronary heart disease admitted to our hospital from March 2022 to March 2023 were selected.All patients underwent both 64-slice spiral CT and digital subtraction angiography(DSA).DSA is considered the gold standard for diagnosis,so it was used to analyze the diagnostic performance of 64-slice spiral CT.Results:(1)The diagnostic results of digital subtraction angiography and 64-slice spiral CT was analyzed and compared with each other.The 64-slice spiral CT had an accuracy of 96.67%(29/30),a sensitivity 96.55%(28/29),and a specificity of 100.00%(1/1)in diagnosing coronary artery stenosis.(2)There was no significant difference between 64-slice spiral CT and digital subtraction angiography in the positive detection rate of anterior descending artery lesion,the positive detection rate of left main lesion,the positive detection rate of left circumflex artery lesion and the positive detection rate of right coronary artery lesion(P>0.05).(3)There was no significant difference between 64-slice spiral CT examination and DSA examination in identifying mild stenosis,moderate stenosis,and severe stenosis of coronary arteries(P>0.05).Conclusion:64-slice spiral CT examination can accurately determine the degree of occlusion of coronary arteries,which allows for the accurate diagnosis of coronary artery stenosis.

64排CT小肠造影在肠道炎性病变诊断的临床应用

目的:探讨64排CT小肠造影在肠道炎性病变诊断中的应用价值。方法:选取2015年4月—2019年1月我院收治的肠道炎性病变患者86例的临床资料进行回顾分析,86例患者依次行消化内镜检查和64排CT小肠造影检查。结果:86例患者中包括22例溃疡性结肠炎患者和64例克罗恩病患者,经64排CT小肠造影检查可见,肠道炎性病变患者中最常见的表现为肠壁异常强化,其次为肠壁增厚,而瘘管形成与腹腔脓肿、结肠袋消失等表现则相对较少。且比较溃疡性结肠炎患者和克罗恩病患者的表现特点来看,肠壁强化和肠壁增厚均是二者的主要表现,比较差异不具有统计学意义(P>0.05)。86例患者经64排CT小肠造影检查的肠壁强化、肠壁增厚、合并腹腔病变的检出率,显著高于消化内镜检查,比较差异具有统计学意义(P<0.05);但在肠壁溃疡、卵石征方面的检出率,消化内镜则显著高于64排C T小肠造影检查,比较差异具有统计学意义(P<0.05)。但两种诊断方式对于多节段病变、肠腔狭窄的检出效果均较好,且二者之间的比较差异不具有统计学意义(P>0.05)。结论:64排C T造影检查在肠道炎性病变的诊断中具有良好的应用,能够对肠外表现和肠管病变进行清晰地显示,从而显著提高患者的临床诊断准确率,但其在多发炎性息肉、肠壁溃疡和卵石征中的诊断有所欠缺,必要时可配合消化内镜检查,来提高临床诊断准确率。

Efficacy of high resolution computed tomography for detection of early healing in scaphoid fractures

Background: While plain radiography is commonly used to assess scaphoid fracture, this imaging modality may not accurately demonstrate early bone healing. This investigation evaluates the utility of 64-slice CT in the detection of early fracture healing compared to plain radiographs and magnetic resonance imaging (MRI). Methods: Outpatients attending follow-up visits for scaphoid fractures at Hamilton General Hospital were included in this investigation. Inclusion criteria included outpatients over age of 18 who consented to attend a follow-up visit for the scaphoid fracture at 6 weeks for X-Ray, 64-slice CT and MRI scan to monitor fracture healing. Assessment of healing was independently interpreted by two radiologists specialized in musculoskeletal imaging. A total of 7 adult outpatients were accrued, with each case classified as healing, not healing, or equivocal for plain radiography and 64-slice CT scan. Results: For plain radiographs, the level of interrater agreement for evidence of healing was 57% (4/7) cases. When comparing this to CT scans, there was no discrepancy between radiologists as 100% (7/7) were found to have evidence of healing. The 64-slice CT scan demonstrated evidence of early trabecular continuity in all cases, including radiographs that were interpreted as equivocal. Conclusion: This study can be considered a pilot project for the efficacy of 64-slice CT in the assessment of early healing of scaphoid fractures. For clinicians, the multiplanar reconstruction images allows for more accurate assessment of fractures than plain radiography. CT scans are able to penetrate through bony callus that may obscure visualization of healing in plain radiography, demonstrate trabecular continuity better than plain radiographs, are readily accessible and provide faster imaging acquisition. The observations from this study may have implications in terms of duration and type of casting applied, timing of strengthening exercises, and avoiding unnecessary surgery which affect patient morbidity and cost of care.