Quantitative measurement of strain distribution of arterial vessel walls due to pulsatile blood flow within the vascular lumen is valuable for evaluating the elasticity of arterial wall and predicting the evolution of plaques. The present paper shows that the three-dimensional (3D) strain distribution are estimated through uni-directional coupling for 3D vessel and blood models reconstructed from intravascular ultrasound (IVUS) images with the computational. fluid dynamics (CFD) numerical simulation technique. The morphology of vessel wall and plaques as well as strain distribution can be visually displayed with pseudo-color coding.
Arteries ; diagnostic imaging ; physiology ; Elasticity ; Hemodynamics ; Humans ; Imaging, Three-Dimensional ; Pulsatile Flow ; Ultrasonography

Abscess ; Anus Diseases ; Cough ; Fever ; Humans

Life view education is an important aspect of building a socialist harmonious society.Life view investigation group in Capital Medical University made survey and interview on life view education for students of 10 colleges and universities in Beijing.Based on the data,this paper elaborated and analyzed life view education from its importance and urgency,ethical reflection as well as practice exploration in an aim to highlight the significance of life education in the construction of a harmonious society.

Hyperplastic disease of the breast (HDB) is caused by a hormone imbalance experienced among women at a certain age. Slight breast pain is common in women before menstruation without need of treatment; however, if the pain becomes severe, it can cause physical and mental suffering. Therefore, it is of great clinical significance to control this disease.

There are significant correlations between cerebral embolism and thyrotoxic atrial fibrillation in patients with hyperthyroidism. The incidence of thyrotoxic atrial fibrillation increases significantly in patients with subclinical hyperthyroidism with serum thyroid-stimula-ting hormone levels ＜ 0. 1 mU/L. Hyperthyroidism may result in cerebral venous thrombosis,moyamoya disease and giant cell arteritis; while hypothyroidism is closely associated with the risk factors of arteriosclerosis, especially hypertension, hyperlipidemia, and hyperhomocysteine-mia. However, this association remains uncertain in subclinical hyperthyroidism.

Objective To evaluate the value of digital subtraction angiography(DSA) in diagnosis and planning endovascular treatment of cerebrovascular diseases. Methods Thirty-one children suspected with ischemic cerebrovascular diseases were treated by urokinase and dextran after they underwent DSA.Results Twenty-four cases (77%) had cerebrovascular abnormalities. Two cases had arteriovenous malformations, 1 case had posterior communicating artery aneurysm,21 cases had cerebrovascular stenosis or occlusions. Shortly after intervention therapy using urokinase,muscle strength increased by one level in 13 cases,two levels in 3 cases,3 levels in 2 cases and no effect in 4 cases. The total effective rate reached 86%. Seven patients with ischemic stroke achieved 100% recanalization. Conclusion DSA is very important in diagnosis of cerebrovascular stenosis and occlusion.

OBJECTIVETo observe the difference in the clinical efficacy on peripheral facial palsy between electro-acupuncture (EA) assisted with surface electromyography (sEMG) and conventional EA.

METHODSSixty cases of peripheral facial palsy were randomized into an observation group and a control group, 30 cases in each one. EA was applied during the first 15 days of sickness in the two groups, at Xiaguan (ST 7), Jiache (ST 6), Dicang (ST 4), Yangbai (GB 14), Taiyang (EX-HN 5), Quanliao (SI 18) and Hegu (LI 4), once a day. In the observation, group, 15 days after sickness, according to the situation in sEMG, on the basis of the acupoints in the previous treatment, the corresponding acupoints were reselected for EA. In the control group, the conventional EA was kept on. The treatment was given once every two days till the 35th day of sickness. Separately, on the 5th, 15th and 35th days of sickness, according to the detection of sEMG in the patients of two groups, the means ratios of: root mean square (RMS) of musculi buccinators, orbicularis oris, frontalis and nasalis on the healthy and affected sides were recorded and analyzed.

RESULTSThe differences of ratio in RMS of musculi buccinators, orbicularis oris, frontalis and nasalis on the healthy and affected sides were significant statistically in comparison between the, 15th day and the 5th day, and between the 35th day and the 15th day of sickness within each group (all P<0. 01). The differences of ratio in RMS of the muscles on the healthy and affected sides were significant statistically on the 15th and 35th days between the two groups (all P<0. 05).

CONCLUSIONEA assisted with sEMG achieves the significant efficacy on peripheral facial palsy, better than the conventional EA.

Acupuncture Points ; Adolescent ; Adult ; Aged ; Electroacupuncture ; Electromyography ; Facial Muscles ; physiopathology ; Facial Paralysis ; physiopathology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Treatment Outcome ; Young Adult

Objective To observe the short-term fusion rate of using osteophyte filled cage in ante-rior cervical disectomy and fusion. Methods From May 2007 to May 2009, 103 patients receiving anterior cervical disectomy, spine fusion by different surgeons were performed with cages containing exclusively au-tologous osteophyte collected from both anterior and posterior vertebral edges adjacent to the intervertebral space. There are 69 males, 34 females, from 25 to 77 years of age, average 53.6 years. 60 patients received one level fusion. 33 and 10 patients received two-level and three-level fusion respectively. Patients were re-viewed 3 months after operation and fusion was evaluated by X-ray film, reconstructive CT and MR. Results 1. Only 1.9% (2/103) of patients' X-ray films indicate non-fusion (internal fixation failure) while 31.7% (32/ 103) of patients' CT and 30.1% (31/103) of patients' MR indicate non-fusion or being confusing to make a diagnosis. 2. The diagnostic coherence between CT and MR as to evaluate fusion is good (kappa=0.686, P= 0.00). 3. The total fusion rate was 77.7%(80/103) while the highest fusion rate achieved by single surgeon was 90%(18/20). The total one level fusion rate was 80%(48/60) while the highest rate by single surgeon was 88.2%(15/17). The total two-level fusion rate was 78.6%(26/33) while the highest rate by single sur-geon was 90%(9/10). The total three-level fusion rate was 60%(60/100) while the highest rate by single surgeon was 100%(3/3). No statistic significant difference in fusion rate was found between any two of the three groups. Conclusion The method of using osteophyte filled cage can acquire ideal short-term fusion rate in one and two-level anterior cervical disectomy, fusion and plate fixation.

Objective To understand the characteristics of hearing aid fitting for elderly patients through 123 cases study.Methods 123 cases of the elderly people suffered from presbycusis were divided into 4 groups at an interval of every 10 years in age.The pure tone thresholds of 125 to 8000 Hz was examined,and digital hearing aids of Siemens were selected based on their hearing conditions,the final results were recorded and reasons of rejection to wearing hearing aid were studied.Results The average hearing condition for each group was found no difference.Patients over 70 were willing to go to see a doctor,but those under 70 were likely to accept hearing aids.The elderly over 70 rejected to wearing hearing aid due to discomfort and financial reasons while the other reasons involved social influence.Conclusion In order to improve the living quality,more attention should be paid to educate the elderly on the effective use of hearing aids.

Stem ceils transplantation is one of the potential therapeutic strategies for Alzheimer's disease (AD). Many animal models following stem cell transplantation showed improvement in memory and cognitive function. However, the pathological changes in AD, such as arnyloid beta deposits, negatively affect the survival and differentiaition of stem cells. Stem cells transfectcd with neprilysin or administration of phenserine could at-tenuate these adverse effects. Genetic modification of stem cell by over expression of neurotrophic factors could attenuate the adverse effects not only on stem cells but also on degenerative neurons. Further investigation on how to overcome the adverse effects of phathological factors in AD on stem cells and maximize the therapeutic effects of stem cells would support the hope for introduction of stem cells transplation into clinical application.