听神经瘤的MRI诊断(20例报告)

回顾分析了20例22个听神经瘤的MRI表现。MRI检查采用0.35T超导MT/S成像系统,常规行冠状面T_1加权及横断面T_(1-)T_2加权成像。据瘤体大小将病灶分成4组,包括限于内听道者1例,1-2cm者2例,2.1-3cm者8例,大于3cm者11例,结果表明,T_1加权像对听神经瘤的诊断价值较大,主要依据是CP角内出现与听神经根部相连的肿块或听神经明显增粗;大于2cm的听神经瘤多可发生囊变、出血及脑干、Ⅳ脑室受压。除可发现位于内听道内的微小肿瘤外,MRI在肿瘤囊变、出血、周围结构受压情况、肿瘤供血血管及肿瘤与周围粘连情况的显示上均具有一定的优越性。     

Impact on Patient Outcomes

The epidemiological burden of diabetes mellitus is changing the classical model of diabetes management, in which a specialist center delivers care based on registration, recall and regular review. Primary care services are progressively assuming a crucial role in screening, prevention and management of the disease. It therefore becomes critical to improve the performance of primary care providers by suitable organizational interventions. The current advances in information technology (IT) and communications technology provide new ways for coping with organizational problems, and provide the opportunity to implement complex, multifaceted interventions in a cost-effective manner. Moreover, IT enables patients to exploit new modalities of access to healthcare services.This review highlights the current situation in the implementation and delivery of IT solutions for diabetes care, and describes the trends towards more advanced and innovative IT-based services.A large number of electronic patient records (EPRs), decision support tools and telemedicine solutions have been proposed and studied but a relatively low number of them have been fully exploited in clinical practice. The main reasons for this limited dissemination are related to the complexity of establishing and evaluating interventions that have a strong impact in the process of care. However, the need for a large scale reorganization of chronic care is now pushing towards the integration of the newest IT tools with new models of diabetes management.     

IHPBA in Tokyo, 2002: surgical treatment of IPMT vs MCT: a Japanese experience

The differences and similarities between intraductal papillary mucinous tumor (IPMT) and mucinous cystadenoma or carcinoma (mucinous cystic tumor; MCT) of the pancreas have been noted. The similarities include: (1) both tumors originate from pancreatic duct cells, (2) massive mucin production is found in both tumors, and (3) papillary projection is a common histological characteristic. However, there are also many differences. IPMT is most frequently found in men in their sixties, and originates in the head of the pancreas, with 62% (123/199) of tumors reported to be found in the head of the pancreas. This tumor sometimes spreads throughout the entire pancreas. The tumor itself basically is of the dilated pancreatic duct type, and the prognosis is generally good. In contrast, MCT frequently develops in women in their forties. This tumor is usually large, round, and almost totally encapsulated by fibrous tissue, with no communication with the pancreatic duct. The tumor histologically has an ovarian-like stroma. It most often develops in the body or tail of the pancreas. Invasion is often present and the operative prognosis is not good. IPMT resembles the shape of a bunch of grapes and MCT resembles that of an orange. From the differences between these two types of tumors, they are classified into different categories. With regard to therapeutic strategies for MCT, the tumor should be resected with lymph node dissection immediately when it is detected. In contrast, some patients with branch-type IPMT can be followed without surgical procedures. Because IPMT shows good prognosis and little tendency for infiltration, some kinds of organ-preserving procedures would be possible for some patients with this tumor. Such organ-preserving procedures are: duodenum-preserving pancreas head resection, spleen-preserving distal pancreatectomy with conservation of the splenic artery and vein, and so on.     

应用ELISA直接竞争法测定乳粉中黄曲霉毒素M_1

建立了测定黄曲霉毒素M_1的ELISA直接竞争法,其方法灵敏度为0.08ng/g。用该法测定了我国市售的乳粉97份,样品阳性率为84.5%,超标率(>0.5ng/g)为39.2%;阳性样品含量范围为0.08～4.16ng/g,调查结果证明我国南方生产的乳粉污染黄曲霉毒素M_1较严重。     

甲襞微循环观测辅助诊断的初步研究

甲襞微循环观测辅助诊断的初步研究胡金麟＊田牛＊刘凤英＊宋欣＊李向红＊规范化的甲襞、球结膜、舌、口唇、牙龈、耳廓、皮肤、子宫颈、阴茎头微循环观测方法标志着我国临床微循环的研究与应用已进入了一个新的阶段［１，２］。临床微循环观测结果的数学公式表达，促进了...     

不典型性脑膜瘤52例CT诊断分析

回顾性分析了22例少见部位的脑膜瘤，22例CT表现不典型及8例CT误诊脑膜瘤的CT表现，以确定脑膜瘤不典型表现与CT误诊的关系。结果显示脑膜瘤的CT误诊多数缘于经验不足与疏忽，少数为极不典型表现所致。若检查全面、阅片仔细．术前CT定性率可由90％提高至96．25％。     

Role of nuclear cardiology for determining management of patients with stable coronary artery disease

Both radionuclide angiography and myocardial perfusion imaging provide important insights that determine the management of patients with stable coronary artery disease. Both nuclear cardiology procedures have clearly demonstrated use in the noninvasvie identification of severe (left main or three-vessel) coronary artery disease and the noninvasive assessment of prognosis and thereby determine which patients should be sent to coronary angiography. Both radionuclide angiography and myocardial perfusion imaging provide prognostic information that is independent of resting left ventricular function and coronary anatomy and thereby influence the decision regarding which patients should be sent to coronary revascularization. This review considers the evidence supporting the uses of these nuclear cardiology procedures and provides suggestions regarding their cost-effective application.     

子宫内膜异位症患者子宫内膜人白细胞抗原的免疫组化研究

目的 研究子宫内膜异位症(内异症)患者在位和异位子宫内膜人白细胞抗原HLA—DR的表达。方法 采用酶标链霉亲合素—生物素(LSAB)技术对19例内异症不孕患者在位和异位子宫内膜腺细胞HLA—DR抗原的表达进行免疫组化研究，以19例非子宫内膜异位症的不孕患者作为对照。结果 内异症患者在位和异位子宫内膜腺细胞HLA—DR抗原的表达较对照组明显增强(P＜0．01)。结论 子宫内膜HLA—DR抗原的异常表达可能参与了内异症免疫学异常的发生。     

胚鼠黑质细胞悬液移植于帕金森病模型鼠侧脑室的实验研究

将胚鼠中脑腹侧组织制成细胞悬液移植于帕金森病(PD)模型鼠侧脑室,动态观察受体鼠在移植前后的行为变化。移植后16周应用诱发荧光及免疫细胞化学等方法,对移植物在受体鼠脑内的存活及生长情况进行了研究。结果,受体鼠旋转行为明显改善,侧脑室内可见黄绿色荧光细胞及酪氨酸羟化酶(TH)免疫反应阳性细胞,有的发出突起伸向室管膜及迁于尾核区.提示:移植的胚鼠黑质细胞生长良好,似作为触液神经元发挥其作用。     

Physiologic comparison and validation of Stairobic stepping with bench stepping.

To compare the oxygen cost of submaximal exercise on the Stairobic stepping (SS) machine with bench stepping (BS), 12 healthy men and women (mean age 23 years) underwent six different five minute exercise bouts that were randomly assigned. Tests were conducted using standard open circuit calorimetry. SS at 40 and 60 st/min was equal to BS at 20 st/min and SS at 80 st/min was equal to BS at 30 st/min for VE and RER. VO2 was equal at 20 st/min (BS) and 60 st/min (SS), and 30 st/min (BS) and 80 st/min (SS). Stairobic MET (SM) displayed values over-estimated actual MET (AM) values at the two lowest SS rates and under-estimated the AM value at the highest SS rate. Forty-eight observations of the MET response of SS were conducted and analyzed (BMDP2R) in a forward stepping solution. The multiple regression equation calculated for AM was: AM = -0.567 + -0.012 (WT) + 0.063 (rate) + 0.612 (SM) with an adjusted R2 of 0.82 and a SEE of 0.90. The physiologic cost of BS was approximately equal to SS at two to three times the BS rate of stepping.