目的 探讨彩色多普勒超声在宫颈癌诊断中的应用价值.方法 选择2017年1月～2019年1月我院收治的宫颈癌患者40例为宫颈癌组,选择同期收治的宫颈肌瘤患者40例为宫颈肌瘤组,选择同期收治的宫颈炎患者40例为宫颈炎组,比较各组患者的声像图表现及CDFI水平.结果 宫颈癌的声像图表现与宫颈肌瘤和宫颈炎表现不同,CDFI水平显示宫颈癌的PSV明显高于其他组,RI明显低于其他组(P<0.05).结论 彩色多普勒超声能够有效诊断宫颈癌,可作为评价宫颈癌浸润程度、指导临床分期及治疗方法选择的重要手段.彩色多普勒超声是一种有效诊断宫颈癌的方法,可清晰显示宫颈各层结构,分辨肌层浸润情况及与周围组织的关系等,并检测宫颈癌内部的血管血流动力学指标,有利于与宫颈炎及宫颈肌瘤相鉴别,可作为诊断宫颈癌及宫颈癌浸润程度、指导临床分期及选择治疗方法的一项重要检查方法.

Objective To investigate the value of magnetic resonance imaging (MRI) elastography combined with serological markers in diagnosis of hepatitis B liver fibrosis. Methods Sixty-six patients with hepatitis B liver fibrosis treated in Heilongjiang Provincial Hospital from January 2017 to December 2017 were selected as research objects. All patients were determined by liver bispsy, and underwent hyaluronic acid (HA) test, procollagen Ⅲ (PCⅢ) test, IV collagen (IV-C) test, laminin (LN) test and MRI elastography to compare diagnosis accuracy of these methods. Results The diagnostic accuracy of serological markers, such as HA, PCⅢ, IV-C and LN, was 80.3%, and diagnostic accuracy of MRI elastography was 81.8%, and it was 93.9% of combination method. There was no significant difference in diagnostic accuracy between single serological markers test and single MRI elastography (P>0.05), but the diagnostic accuracy of MRI combined with serological markers was significantly higher than single tests (P<0.05). Severity of liver fibrosis was positively correlated with MRI elasticity value (P<0.05); MRI result was negatively correlated with serological markers, such as HA, PCⅢ, IV-C and LN (P<0.05). Conclusions Serological markers combined with MRI elastograohy is superior to single tests in the diagnosis of liver fibrosis, which is worthy of further promotion in clinical. Key words: Hepatitis B liver fibrosis; Serological markers; Magnetic resonance imaging

目的 探讨星形细胞瘤的MRI影像表现与诊断.方法 选取2014年1月——2016年12月期间收治的30例星形细胞肿瘤磁共振成像诊断进行分析.结果 30例星形细胞肿瘤中,其中毛细胞型星形细胞瘤2例,室管膜下巨细胞型星形细胞瘤1例,星形细胞瘤13例,间变性星形细胞瘤2例,胶质母细胞瘤12例.所有患者均经手术病理证实.结论 MRI显示星形细胞瘤T1WI为低信号,T2WI为高信号,其他表现同CT所见.

目的：探讨MSCT在肺硬化性血管瘤诊断中的应用价值。方法收集12例经过病理证实的PSH患者CT及临床资料。结果平扫呈单发的孤立性圆形或类圆形肿块12例，合并瘤周钙化3例，晕征5例，空气半月征2例，血管贴边11例。平扫CT值为（17.2±6.3）HU，增强扫描延迟60 s时CT值为（85.3±10.1）HU，120 s时CT值为（101±9.6）HU，呈中等程度以上进行性持续强化改变。结论 MSCT在肺硬化性血管瘤的诊断中具有重要意义，可为临床制定治疗方案提供可靠依据。

Objective To explore the diagnostic value of contrast-enhanced ultrasound(CEUS) and ultrasonic elastography(UE) in differentiating benign and malignant hepatic lesions. Methods Conventional ultrasonography, UE and CEUS were performed on each patient. The golden standard came from the clinical follow-up and pathological results. The diagnostic performances of the three methods were evaluated with the interobserver agreement. Results The sensitivity, specificity and the accuracy of conventional ultrasonography for diagnosing malignant hepatic tumors compared with UE and CEUS, had significant differences(P 0.05). Lesions without certain diagnosis by CEUS estimated by UE with an accuracy of 75%. Conclusion CEUS has more diagnostic value than UE in differentiating benign and malignant liver lesions. UE shows supplementary effect when CEUS fails to clarify a diagnosis. It can ensure the number of lesions, also it can discover the atypical lesion range.

目的讨论多发性胸膜致密影的CT诊断。方法对患者进行检查，并根据CT表现进行诊断并鉴别。结论转移瘤为多发性胸膜致密影的最常见原因。

目的讨论颅咽管瘤的CT表现与诊断。方法对患者进行CT检查并依据图像表现进行诊断。结论典型的颅咽管瘤CT诊断并不困难，具有钙化，囊腔及强化后增强者，加上鞍上池消失，脑室扩大等表现一般可确诊。但对鞍内型实质性颅咽管瘤与垂体腺瘤的鉴别或囊性颅咽管瘤与蛛网膜囊肿或表皮样囊肿鉴别有一定困难，仍需结合病史及实验室内分泌检查。通常需要鉴别的鞍内疾病主要为垂体腺瘤，后者年龄多在15岁之后，多无发育迟缓等垂体低功能改变，视野改变多为典型双颞偏窄，眼底改变以原发灶视神经萎缩多见。蝶鞍扩大多为球形，肿瘤钙化少见，需与颅咽管瘤鉴别(鞍上型肿瘤或病变主要包括鞍结节脑膜瘤、视神经胶质瘤、脊索瘤、第三脑室前部胶质瘤、生殖细胞瘤、鞍区上皮样瘤、虹吸动脉瘤等)。

目的:分析脑膜瘤的CT和MRI影像学特点。方法:73例经手术病理证实的脑膜瘤,行CT和/或MRI检查,回顾性分析该影像学资料,将影像检查结果与手术病理进行对照分析。结果:70例为单发,2例为多发,1例并发有脊膜瘤。发病部位21例位于矢状窦旁,18例位于大脑镰旁,15例位于鞍区,13例为蝶骨嵴脑膜瘤,4例位于小脑幕,2例位于桥小脑角处。病理诊断:脑膜上皮型23例,移行型(混合型)15例,砂粒型10例,纤维型8例,微囊型5例,分泌型3例,血管型、透明细胞型、脊索型各2例,淋巴细胞丰富型、化生型和恶性脑膜瘤各1例。结论:CT和MRI对颅内脑膜瘤有重要真的诊断价值,平扫结合增强能提高非典型脑膜瘤诊断的准确率,减少误诊率。