影像学评估在耳蜗植入术中的价值

目的：评价影像学检查在耳蜗植入术中的价值。方法：37例感音性神经性聋患者术前常规行颞骨HRCT及MRI检查，术后行改良斯氏位X线拍片，其中5例术后行CT复查。结果：CT显示2例Mondini畸形（4耳），2例前庭导水管扩张（4耳），1例迷路骨化（1耳），1例内听道狭窄（2耳）。MRI显示Mondini畸形3例（6耳），前庭导水管扩张2例（4耳），1例并内淋巴囊扩张（2耳），2例迷路纤维化（2耳）。术后改良斯氏位X线拍片显示植入电极形态、位置良好。CT显示1例电极滑脱。结论：CT及MRI对耳蜗植入术术前评估具有重要价值，改良斯氏位X线拍片结合CT对术后评估更有意义。     

Bone scintigraphy in hereditary mutiple exostoses

A case of hereditary mutiple exostoses is presented. ^99mTc-MDP imaging demonstrated uptake of radiotracer in the lesions.     

影像学检查在儿童过敏性紫癜的临床价值

目的探讨儿童过敏性紫癜的影像学特点及其临床价值。方法回顾性分析32例过敏性紫癜并发肠套叠患儿的临床及影像学资料。结果出现并发症之前过敏性紫癜的腹部X线主要表现为局限性小肠充气扩张，粘膜增粗，肠间隙增宽，可伴有液平；B超显示为不同程度的多发节段性肠壁水肿增厚，肠管狭窄等表现；出现并发症后，其X线表现加重，部分病例伴有肠穿孔；B超及X线监视下空气灌肠可以明确是否并发肠套叠，部分病例可通过空气灌肠达到复位治疗的目的。结论影像学检查的重要临床价值在于能与需要手术治疗的其他急腹症相鉴别，同时可以了解其是否并发常见的并发症，为临床确定治疗方案提供可靠的信息。     

Study of fingerprint classification and their gender distribution among South Indian population

Identification of an individual plays a vital part of any medicolegal investigation. Fingerprint is considered to be the most accurate and reliable indicator in identification.The present study was conducted on 500 South Indian subjects to determine the individuality and the predominant fingerprint pattern among South Indian population. Two-hundred and fifty males and 250 females of South Indian origin were included for this study and rolled prints were taken from all the 10 digits and the same were stored on a proforma.The most frequent fingerprint pattern was ulnar loop in the total population, as well as in the sex wise distribution.     

Muscular activation patterns of healthy persons and low back pain patients performing a functional capacity evaluation test

The results of most reported studies show differences between the muscular activity of low back pain patients and healthy subjects, but the focus has usually been on trunk muscles only, and they have not involved work-related tests or exercises. The reintegration of chronic low back pain patients to job market is a common problem. Therefore assessment systems like the functional capacity evaluation (FCE) according to Isernhagen [S.J. Isernhagen, Work Injury: Management and Prevention, Aspen Publishers Inc., Gaithersburg, MD, 1988] are often used tools to determine the physical abilities and deficits of long-time incapacitated persons. The aim of the present study was to compare the healthy persons and chronic low back pain patients in performing a FCE-test and to analyse their muscular activation and motion patterns. The results indicate differences in the activation patterns of the groups in the test task “floor to waist lift” common in many occupations.     

Bacterial ghosts (BGs)—Advanced antigen and drug delivery system

Bacterial ghosts (BGs) are empty bacterial envelopes of Gram-negative bacteria produced by controlled expression of cloned gene E, forming a lysis tunnel structure within the envelope of the living bacteria. BGs are devoid of cytoplasmic content and possess all bacterial bio-adhesive surface properties in their original state while not posing any infectious threat. BGs are ideally suited as an advanced drug delivery system (ADDS) for toxic substances in tumor therapy. The inner space of BGs can be loaded with either single components or combinations of peptides, drugs or DNA which provides an opportunity to design new types of (polyvalent) drug delivery vehicles. Uptake of BGs loaded with Doxorubicin (Dox) by CaCo2 cells led to effective Dox release from endo-lysosomal compartments and accumulation in the nucleus. Viability and proliferative capacity of the cells were significantly decreased (2–3 orders of magnitude) after internalization of Dox loaded BGs as compared to cells incubated with free Dox. The same effect was observed with leukemia cells. Melanoma cells also revealed a high capability to internalize BGs. These results indicate that BGs are able to target a range of types of cancer. BGs have also been investigated as DNA delivery vectors. Studies show DNA loaded BGs are efficiently phagocytosed and internalized by both professional APCs and tumor cells with up to 82% of cells expressing the plasmid-encoded reporter gene. Our studies with BGs as an ADDS system contribute (i) to optimize drug delivery for the treatment of cancer; (ii) define specific conditions for selection and preparation of BG formulations; (iii) and provide a background for the clinical application of BGs in cancer therapy.     

静脉性脑梗死动物模型的建立及相关研究

静脉性脑梗死动物模型的建立是通过不同的栓塞方法闭塞实验动物上矢状窦的不同部位，其目的是观察脑组织的血流量、血氧饱和度、脑组织水含量、脑灌注压、及各种影像学表现等参数指标的变化，从病理生理角度探讨静脉性脑梗死的发病机理及演变过程。     

Cockett综合征的影像学诊断和介入治疗

目的探讨Cockett综合征影像学诊断和介入治疗方法。方法对20例Cockett综合征患者进行临床分析,其中13例行介入治疗术。结果下肢深静脉造影术能明确诊断Cockett综合征,13例患者经介入治疗后其临床症状体征均有不同程度的改善,临床疗效明显。结论介入治疗Cockett综合征,是一种简单、安全和有效的方法。     

兔肝VX2肿瘤模型的建立及影像学研究现状

VX2肿瘤细胞株是一种可移植的肿瘤细胞株,可接种到兔的肝脏、肾脏等部位,建立原位肿瘤动物模型。兔VX2肝癌模型是目前较常用的实验性动物肝癌模型,本文就兔肝VX2肿瘤模型的建立和影像学表现进行综述。     

发育性髋脱位的影像学研究进展

发育性髋脱位是一种常见的小儿骨科疾病。临床表现较隐匿,影像学检查对其诊断有重要价值。本文对X线、造影、超声、CT、MRI等影像检查方法对发育性髋脱位的诊断应用进行综述,探讨各种方法的优缺点及对发育性髋脱位的诊断价值。