首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   43篇
  免费   2篇
耳鼻咽喉   1篇
妇产科学   1篇
临床医学   10篇
内科学   5篇
神经病学   3篇
特种医学   8篇
外科学   15篇
药学   2篇
  2017年   1篇
  2016年   4篇
  2015年   1篇
  2014年   3篇
  2013年   5篇
  2012年   4篇
  2011年   4篇
  2009年   1篇
  2008年   1篇
  2007年   4篇
  2006年   9篇
  2005年   1篇
  2004年   3篇
  2003年   3篇
  1998年   1篇
排序方式: 共有45条查询结果,搜索用时 0 毫秒
1.

Background  

Clitoromegaly is a frequent congenital malformation, but acquired clitoral enlargement is relatively rare.  相似文献   
2.
3.
ObjectiveThe purpose of the study was to differentiate between benign and malignant thyroid nodules using nodule-spinal cord signal intensity and nodule apparent diffusion coefficient (ADC) ratios on diffusion-weighted magnetic resonance imaging (DW-MRI).Materials and MethodsForty-four patients (27 females, 17 males; mean age, 49 years) with nodules who underwent DW-MRI were included in this study. The images were acquired with 0, 50, 400 and 1000 s/mm2 b values. ADC maps were calculated afterwards. Fine needle aspiration biopsies (FNAB) were performed at the same day with DW-MRI acquisition. The diagnosis in patients where malignity was detected after FNAB was confirmed by histopathologic analysis of the operation material. The signal intensities of the spinal cord and the nodule were measured additionally, over b-1000 diffusion-weighted images. Nodule/cord signal intensity (SI) ratios were obtained and the digital values were calculated by dividing to ADC values estimated for each nodule. Statistical analysis was performed.ResultsThe (nodule SI-cord SI)/nodule ADC ratio is calculated in the DW images, and a statistically significant relationship was found between this ratio and the histopathology of the nodules (P<.001). The ratio was determined as 0.27 in benign and 0.86 in malignant lesions. The result of receiver operating characteristic (ROC) analysis was statistically significant, and the area under curve (100%) was considerably high. The threshold value was calculated as 0.56 according to the ROC analysis. According to this threshold value, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy rates for (nodule SI/cord SI)/ADC ratios in differentiating benign from malignant thyroid nodules are calculated as 100%, 97%, 83%, 100%, and 98%, respectively.ConclusionWe have found that (nodule/cord SI)/nodule ADC ratio has the highest values for sensitivity and specificity among the tests defined for characterization of nodules.  相似文献   
4.
ObjectiveOur aim was to evaluate the contribution of diffusion-weighted imaging to the differentiation of hydatid cysts (HCs) from the simple cysts and to the identification of the HC subtypes.Materials and methodsA total of 37 patients were included in this retrospective study. Fifty of these patients had diagnosed liver cysts (28 HCs and 22 simple cysts) of at least 1 cm in size. All of the cysts were examined with sonography and magnetic resonance imaging, and the HCs were classified according to the World Health Organization criteria.ResultsTwenty-eight of the total 50 cysts were HCs, and 22 were simple cysts. When the apparent diffusion coefficient (ADC) values of all HCs were compared with the ADC values of the simple cysts, a statistically significant relationship was found (P=.001). The optimal ADC threshold value was established as 2.5 s/mm2. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy rates were 60%, 95%, 94%, 65% and 76%, respectively.ConclusionDiffusion-weighted imaging–magnetic resonance imaging is a considerably helpful technique for differentiating between HCs and simple cysts and for differentiating between HC subtypes.  相似文献   
5.
6.
7.
Traditional medicine remedies are believed to provide relief from pain; nevertheless, it can be a risky procedure if these remedies are prepared inappropriately. Here, we describe a patient who suffered from a split‐thickness leg burn after applying a self‐inflicted mixture consisting of white vinegar and aspirin prepared for knee pain. This case report highlights a rare cause of a chemical burn that could become more common with increasing use of traditional remedies worldwide.  相似文献   
8.
9.
QTc interval prolongation may appear as a consequence of both typical and atypical antipsychotic treatments. Ziprasidone, which is effective in treating schizophrenia, is associated with QTc prolongation. Although the prolongation of QTc with ziprasidone treatment is often pronounced, there is a scarce number of cases reported about the relationship between ziprasidone and QTc prolongation. Of the three cases presented in this case series, two cases showed values exceeding 0.50 s with ziprasidone treatment.  相似文献   
10.
Keloid scars are one of the most challenging problems for physicians and surgeons. These scars have been treated in many ways, with varying success. Verapamil is a widely used calcium channel antagonist, and it has been shown that calcium channel blockers inhibit the synthesis/secretion of extracellular matrix molecules, including collagen, glycosaminoglycans, and fibronectin, and increase collagenase. In this study, we performed total keloid excision in combination with reconstruction with W-plasty or skin grafting and injection of verapamil hydrochloride into the lesions of 21 patients with keloids. Patients were followed for minimum of 2 years, and the treatment outcome was evaluated based on the cosmetic appearances, symptomatic improvements, and the results of microscopic examinations. Also, patient satisfaction was scored with a visual analog scale. Two years after the operations, two patients had keloid in lesser diameter than the original lesions, two patients had lesions that were hypertrophic scars in appearance, and four patients had pruritus. One patient had keloid on the donor site. The rate of patient satisfaction was 6.4 on a scale of 1 to 10. We reviewed the treatment of keloid in this study and obtained one of the lower rates of complication in the literature. We believe that surgical excision with W-plasty or skin grafting and intralesional verapamil injection may be a good alternative in the treatment of keloid.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号