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    CT findings of primary malignant tumors of liver were summarized as following:(1) Single or multiple lesions of low attenuation in the liver on plain CT scans were enhanced inhomogenously following in injection of contrast medium.
    原发性肝脏恶性肿瘤的CT征象为:(1)平扫肝实质内单个或多个低密度肿块,增强扫描病灶不均质增强;
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    Hepatic metastases appeared on precontrast CT scans as well-circumscribed single or multiple lower density lesions,more clearly shown on enhanced CT,but not specific.
    转移性肝脏肿瘤平扫显示为单个或多个边界清楚的低密度病灶,增强扫描更清楚地显示之,但其表现无特异性。
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    Results (1)On chest films, 4 cases showed single or multiple large air cystic lesions (>3 cm in diameter), one case only showed localized hazy and curl-like lung markings, and 3 cases showed honeycomb-like small cystic lesions (<3 cm in diameter). All cases were complicated with emphysema on affected side. 6 cases showed pulmonary hernia of mediastinum.
    结果  (1)胸片见单个或多个毗邻含气大囊 (囊径 >3cm) 4例 ,多发蜂窝样小囊 (囊径 <3cm)的 3例 ,1例表现为肺纹理模糊 ,6例合并纵隔肺疝 ,患侧肺气肿样改变 8例。
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    Juvenile xanthogranuloma (JXG) is an uncommon benign disease, which usually occurs on the skin of head and neck region, as a single or multiple nodular lesions.
    幼年型黄色肉芽肿是不常见的良性疾病,常发生在头领区的皮肤,表现为单个或多个结节病变。
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Their effect on the studied syntheses was dose-dependent: single or multiple long-term administration of high antioxidant doses inhibited synthesis of dNTPs, DNA, and proteins.
      
The change from vertical to longitudinal polarization by single or multiple switching of the longitudinal field for a certain time interval is considered.
      
In this sample, the lifetime prevalence of panic was 8.6%, and well over half of these had single or multiple additional psychiatric diagnoses.
      
Fifty-six patients suffered from single or multiple organ dysfunction syndrome, 36 patients from septic complications; 27 multiple trauma patients died.
      
Single or multiple coils were implanted successfully in 114 cases, a Rashind double umbrella in 35 patients, and an Amplatzer duct occluder in 16 patients.
      
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Nine cases of malignant liver tumors (7 primary) including hepatoblastoma of 3 cases and heptocellular carcinoma of 4 cases,2 metastatic in children were presented in this report.CT findings of primary malignant tumors of liver were summarized as following:(1) Single or multiple lesions of low attenuation in the liver on plain CT scans were enhanced inhomogenously following in injection of contrast medium.(2) Most tumors were large enough to distort the contour of the liver.(3) The lesions usually confined to...

Nine cases of malignant liver tumors (7 primary) including hepatoblastoma of 3 cases and heptocellular carcinoma of 4 cases,2 metastatic in children were presented in this report.CT findings of primary malignant tumors of liver were summarized as following:(1) Single or multiple lesions of low attenuation in the liver on plain CT scans were enhanced inhomogenously following in injection of contrast medium.(2) Most tumors were large enough to distort the contour of the liver.(3) The lesions usually confined to one lobe,frequently right lobe,but may involve both lobes or be multicentric.(4) The chest was the commonest site of metastases.The clinical and CT diffentiation between hepatoblastoma and HCC was discussed and analyzed in this series.Hepatic metastases appeared on precontrast CT scans as well-circumscribed single or multiple lower density lesions,more clearly shown on enhanced CT,but not specific.

报告小儿肝脏恶性肿瘤9例(原发性7例)其中肝母细胞瘤3例,肝细胞癌4例;转移性2例)。原发性肝脏恶性肿瘤的CT征象为:(1)平扫肝实质内单个或多个低密度肿块,增强扫描病灶不均质增强;(2)大多数肿瘤较大,常使肝脏变形;(3)肿瘤通常累及肝脏一叶,右叶多见,但可以累及两叶或多中心;(4)胸部是最常见的转移部位。分析和讨论了肝母细胞瘤和肝细胞癌之间的鉴别诊断。转移性肝脏肿瘤平扫显示为单个或多个边界清楚的低密度病灶,增强扫描更清楚地显示之,但其表现无特异性。

Objective To describe the imaging manifestation in 8 cases of congenital cystic adenomatoid malformation of the lung in children (CCAM) in order to improve the recognition. Methods Seven males and 1 female were reported, and the mean age was 3 years 10 months. The complaints were cough, fever, and chest distress repeated for 4 days to 8 years. Chest films and CT scan were performed in all cases before operation and three of them were examined by high-resolution CT. All cases were confirmed by operation...

Objective To describe the imaging manifestation in 8 cases of congenital cystic adenomatoid malformation of the lung in children (CCAM) in order to improve the recognition. Methods Seven males and 1 female were reported, and the mean age was 3 years 10 months. The complaints were cough, fever, and chest distress repeated for 4 days to 8 years. Chest films and CT scan were performed in all cases before operation and three of them were examined by high-resolution CT. All cases were confirmed by operation and pathology as CCAM. Results (1)On chest films, 4 cases showed single or multiple large air cystic lesions (>3 cm in diameter), one case only showed localized hazy and curl-like lung markings, and 3 cases showed honeycomb-like small cystic lesions (<3 cm in diameter). All cases were complicated with emphysema on affected side.6 cases showed pulmonary hernia of mediastinum. (2)On CT scan, each lung were involved in 4 cases, 2 cases showed large air cyst (almost 9 cm in diameter), 2 cases showed roundness thin-wall air cystic lesions (3.8~5.6 cm in diameter), and 4 cases showed multiple irregular small air cystic lesions (0.2~3.2 cm in diameter) and adenoid change. The cysts were filled with air but with small amount of liquid in only 3 cases. All lesions showed obvious space occupying sign. (3)The pathologic findings, the cyst was paraplasmic glandular or bronchiolar structures, cyst wall was lined with ciliated pseudostratified columnar epithelium in 3 cases and lined by cuboids to columnar epithelium in 5 cases. The cyst wall contained smooth muscle and elastic tissue. Cartilage plates were not present in all cases. Conclusion Imaging examination is a reliable method in diagnosing CCAM. It can provide the diagnosis in location and quality. CT scan can improve the detection rate of CCAM.

目的 描述小儿先天性肺囊性腺瘤样畸形的影像学表现 ,以提高对该病的认识。方法男 7例 ,女 1例 ,平均年龄 3岁 10个月。均以反复呼吸道感染就诊 ,病史 4d至 8年。 8例均经手术、病理证实 ,术前摄胸片及胸部CT平扫 ,3例病变区加作高分辨率CT扫描。结果  (1)胸片见单个或多个毗邻含气大囊 (囊径 >3cm) 4例 ,多发蜂窝样小囊 (囊径 <3cm)的 3例 ,1例表现为肺纹理模糊 ,6例合并纵隔肺疝 ,患侧肺气肿样改变 8例。 (2 )CT见左右肺受累各 4例 ,2例表现为巨大囊腔 (囊腔最大径约 9cm) ,2例呈类圆形薄壁囊腔 (囊径 3 8~ 5 6cm) ,4例表现为多发蜂窝样小囊 (囊径 0 2~3 2cm) ,囊内以含气为主 ,3例囊内含少量液体 ,病变均有不同程度的占位效应。 (3)病理检查见囊腔为异常增生的管腔或腺样结构 ,壁内被覆假复层纤毛柱状上皮 3例 ,纤毛柱状及立方上皮 5例 ;囊周可见平滑肌及弹性纤维环绕 ,8例囊壁内均未见软骨成分及腺体。结论 影像学检查为诊断先天性肺囊性腺瘤样畸形的可靠方法 ,它可以提出定位、定性诊断 ,CT能明显提高病变的检出率。

Objective To approach ultrasonic diagnosis and treatment of children's intussusception. Methods The data of 158 cases diagnosed by operations or X-ray clyster with air in recent 8 years were reviewed and analysed; among them- 153 cases were subjected to high- frequency ultra- sonography at same time.Result Among 153 cases-there were ileum-colon type in 137 cases- compound type in 16 cases. The characteristics of the pictures were changed with tube shaped if checked vertically and shaped with round targed-...

Objective To approach ultrasonic diagnosis and treatment of children's intussusception. Methods The data of 158 cases diagnosed by operations or X-ray clyster with air in recent 8 years were reviewed and analysed; among them- 153 cases were subjected to high- frequency ultra- sonography at same time.Result Among 153 cases-there were ileum-colon type in 137 cases- compound type in 16 cases. The characteristics of the pictures were changed with tube shaped if checked vertically and shaped with round targed- if checked horizontally. It was also seen that intestinal tube enlarged- shaped with single or more round or elliptical tube liquid dark area. Sometimes the intestinal membrane were shaped with fishbone or tooth. Conclusion This method is safe and its accord rate is high for diagnosing children's intussusception.

目的探讨小儿肠套叠的超声诊断及治疗。方法回顾分析了近8年来经手术或X线空气灌肠而明确诊断的患者158例,其中153例同时行高频超声检查。结果153例中回结型127例,复合型26例。声像图特点为纵向探查呈套筒样改变,横向检查呈靶环征;还可见到肠管扩张,呈单个或多个圆形、椭圆形管状液性暗区,有时肠壁粘膜呈鱼刺状或齿状回声。结论高频超声显像诊断小儿肠套叠完全,诊断符合率高。

 
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