核磁共振检查诊断骨质疏松性隐匿胸腰椎骨折的临床价值研究

目的:探讨核磁共振检查诊断骨质疏松性隐匿胸腰椎骨折的临床价值.方法:选择我院2019年10月-2020年10月收治的100例骨质疏松性隐匿胸腰椎骨折患者,采用核磁共振技术法检查诊断,将检查结果与CT检查结果对比.结果:核磁共振技术对骨质疏松性隐匿胸腰椎骨折诊断准确率为96.00%,与CT检查结果80.00%对比有显著差异,存在统计学意义(P<0.05).结论:核磁共振技术法对于临床因骨质发生疏松引起的胸腰椎隐匿骨折的诊断价值非常高,可早期检出骨折情况,并为临床治疗提供一定的影像学依据,从而促使患者痛苦减轻,早日康复,因此,其具有重要的临床意义.

磁共振联合双源CT三期增强扫描对肝血管瘤与肝细胞癌的鉴别诊断价值研究

本研究旨在深入探讨计算机断层扫描(CT)与磁共振成像(MRI)增强扫描在肝血管瘤(HH)和肝细胞癌(HCC)诊断中的实际应用价值。方法 我们回顾性分析了2020年6月至2022年6月期间,本院接收的32例HH患者和37例HCC患者的CT与MRI增强扫描结果。通过结合手术或穿刺病理诊断,对这些影像学检查结果进行了一致性评估和诊断效能分析。结果 以病理诊断为参照标准,CT增强扫描在诊断肝细胞癌方面达到了78.4%的准确率,而在诊断肝血管瘤方面达到了75.0%的准确率。相较之下,MRI增强扫描在诊断肝细胞癌方面的准确率高达94.6%,在诊断肝血管瘤方面的准确率也达到了90.6%。经Kappa一致性检验表明,无论是CT还是MRI扫描,其在肝细胞癌和肝血管瘤的诊断上均与病理诊断表现出较高的一致性。在诊断效能方面,MRI扫描的灵敏度、特异度和准确性分别为94.6%、90.6%和92.8%,这一表现显著优于CT扫描的78.4%、75.0%和76.8%。然而,值得注意的是,联合使用两种诊断方法并未显著提升诊断效能。结论 综上所述,在鉴别原发性肝细胞癌与肝血管瘤的临床实践中,应优先考虑采用磁共振成像(MRI)检查,以获取更为准确和可靠的诊断信息。

磁共振多模态影像技术在新生儿缺氧缺血性脑病诊断中的应用

目的:探讨磁共振多模态影像技术在新生儿缺氧缺血性脑病中的应用价值。方法:选取遂宁市中心医院2020年2月—2022年4月收治的经临床证实的124例新生儿缺氧缺血性脑病患者,根据随机数字法分为研究组和对照组,各62例。对照组行西门子SOMATOM Definition AS 64排128层CT检查,研究组采用磁共振多模态技术(DWI+1H-MRS+SWI),对比两组诊断准确率、蛛网膜下腔出血以及基底节区出血检出率,分析磁共振多模态影像学检查特征。结果:研究组诊断准确率93.55%显著高于对照组的75.81%(P<0.05)。研究组蛛网膜下腔出血检出率以及基底节区出血检出率均高于对照组,差异有统计学意义(P<0.05)。磁共振多模态影像学检查能全面清晰呈现患者的各项影像学变化。结论:在新生儿缺氧缺血性脑病患者中,开展磁共振多模态影像学检查诊断,能获取有效获得较为特征性影像学表现,并提高临床诊断率。

核磁共振动态对比增强扫描在前列腺癌诊断中的效果观察及准确性分析

目的:探讨分析为前列腺癌患者开展核磁共振动态对比增强扫描影像学检查诊断的临床效能。方法:选取2019年4月—2021年2月我院收治的114例前列腺癌确诊患者,随机分为两组,每组各57例。参照组常规性MRI序列扫描影像学检查诊断,研究组核磁共振动态对比增强扫描影像学检查诊断,测算对比两组的影像学检查诊断结果满意度,以及检查诊断准确性。结果:研究组的影像学检查诊断结果满意度高于参照组,检查诊断准确性高于参照组,差异有统计学意义(P<0.05)。结论:为前列腺癌患者实施核磁共振动态对比增强扫描影像学检查诊断,能获取较好效果,值得临床推广。

Role of MR imaging in the diagnosis of intracranial germinoma

Objective: To investigate the role of MRI in the diagnosis of intracranial germinoma. Methods: MRI features of 19 cases of intracranial germinoma confirmed by operations and pathological findings were analyzed retrospectively. Results: Germinomas were found in the sellar region in 10 patients (including 5 males and 5 females), in the pineal region in 6 and in the thalamus and basal ganglia in 3, the 9 patients in the latter 2 groups all being males. The characteristic MRI findings of intracranial germinomas were as follows: (1) Lesions were isointense or slightly hypointense on T1WI while isointense or slightly hyperintense on T2WI. The germinomas in the sellar region and pineal region showed no edema, but lesions in the thalamus basal ganglia showed mild to moderate edema and space-occupying effects. (2) Homogeneous or inhomogeneous Gd-DTPA enhancement were seen in most of the tumors. Conclusion: Multiaxial imaging and Gd-DTPA enhancement in MRI are helpful in the diagnosis and differentiation of intracranial germinomas on the basis of the patient's gender, the location of the tumor and its imaging characteristics.

MRI manifestations of enlarged superior ophthalmic vein

Objective:To assess MRI in the evaluation of enlarged superior ophthalmic vein (SOV). Methods: MRI manifestations and etiology of forty-six patients with enlarged SOV were analyzed. Results: SOV enlargement was noted to occur in carotid-cavernous fistula, ophthalmic Graves'disease, Tolosa-Hunt syndrome, inflammation at the apex of the orbit, orbital pseudotumor and thrombosis of cavernous sinus. The dilated vein appeared as signal void tubular shadows on both T1 and T2 weighted images. The diameter of the enlarged vein was 3.5-6.0 mm. Extraocular muscle enlargement, orbital pathologies, enlarged carotid cavernous sinus etc were also revealed by MRI. Conclusion: The dilated SOV may be well demonstrated by MRI. The etiological diagnosis of enlarged SOV can be made in combination with the associated findings.