行经

To analyze the CT features and diagnosis of 43 cases of mastoiditis with clinical diagnosis, including 26 cases proved by surgery, by studying them retrospectively.

目的：对42例资料完整，其中26例经手术病理证实的中耳乳突炎行回顾性分析，探讨其CT特征、诊断及鉴别。

Methods: twenty rabbits with fracture of the femur diaphysis were treated by intramedullary nailing of femur with composites rod of resorbable dl polylactic acid calcium metaphosphate. the animals were sacrificed at 2, 4, 8 and 12 weeks after surgery. the fracture healing, the material degradation and mechanical properties were studied with x ray films, macroscopic, microscopic and electron microscopic observations.

用生物可吸收性聚乳酸/偏磷酸钙复合物棒对20只兔股骨髁上实验性骨折行髓内固定，术后2， 4， 8和12 wk分别经x线摄片、肉眼、光镜和电镜对骨折的愈合、材料的降解性能和力学性能进行观察。

METHODS: Twenty rabbits with fracture of the femur diaphysis were treated by intramedullary nailing of femur with composites rod of resorbable DL polylactic acid calcium metaphosphate.

用生物可吸收性聚乳酸/偏磷酸钙复合物棒对 2 0只兔股骨髁上实验性骨折行髓内固定，术后 2 ，4 ，8和 1 2wk分别经X线摄片、肉眼、光镜和电镜对骨折的愈合、材料的降解性能和力学性能进行观察。

Methods: The nursing method was analyzed retrospectively in the diagnosis of 108 suspected cases with acute thoracic aortic dissection by multiplane transesophageal echocardiography.

对108例临床拟诊急性胸主动脉夹层的患者行多平面经食道超声心动图检查的护理方法进行回顾性分析。

Methods To investigate the clinical results,from January 2002 to June 2007,15 cases diagnosed left atrial myxoma by Doppler echocardiography were operated under cardiopulmonary bypass.Mitral valve proplasty were operated on one patien and tricuspid valve proplasty were operated on five patients,atrial septal defect were repaired on two patients.Results One case died before operation,the others got a successful results,no death happened on preoperative period and operative course.

回顾分析2002年1月至2007年6月我院收治的15例左心房黏液瘤病例，术前均经彩色超声心动图确诊，均在体外循环下行黏液瘤摘除术，同期行二尖瓣成形术1例，三尖瓣成形术5例，房间隔缺损修补术2例。

Objective:To compare the efficacy of transperitoneal and retroperitoneal laparoscopic radical nephrectomy for renal tumor.

目的：比较经腹腔和腹膜后方式行腹腔镜肾癌根治术的优缺点。

121 children with olfaction disorders were detected by olfaction test, nasal endoscope and CT.

为 12 1例嗅觉障碍儿童行嗅觉测试，并经鼻内窥镜及影像学检查进行病因分析。

The step motor can receive digital signal directly and has the ability to response outer environment immediately and has no accumulation error, which often is used in driving system. In this driving system, open-loop control system is composed of stepping motor, which can satisfy the demand not only for control precision but also for the target of economic and practicality. On this basis , the analysis of stepping motor in power calculating and style selecting is also given.

由于步进电机能够直接接收数字量，响应速度快而且工作可靠并无累积误差，常用作数字控制系统驱动机构的动力元件，因此，在驱动装置中采用由步进电机构成的开环控制方式，这种方式既能满足控制精度的要求，又能达到经济性、实用化目的，在此基础上，对步进电机的功率计一算及选型问题经行了分析。

objective to study the high-resolution ctfindings of otosclerosis and its valuein clinical practice.methods collected 13 patients with otosclerosis,proved by operation and pathology underwent axial and coronal hrct scanning.results all 26 temporal bones were revealed abnormal.

目的 明确耳硬化症的高分辨率ct表现，评价hrct的应用价值。方法收集经手术病理证实为耳硬化症13例，所有病例均行水平位及冠状位hrct扫描。

Imaging studies showed that the positive rate of the ultrasound was 73.33%,the CT was 60.00%,the MRI was 75.00%,and the 99mTc-MIBI was 100.00%.All the patients were underwent parathyroidectomy of front neck incision, and were identified with parathyroid adenoma in 16 cases, hyperplasia in 1case and carcinoma in 2 cases. Follow-up was done from 10 months to 6 years after surgery.

影像学检查的阳性率：B超为73.33％，CT为60.00％，MRI为75.00％，99mTc-MIBI为100.00％。19例患者均经颈前弧形切口行甲状旁腺切除术，16例为甲状旁腺腺瘤；2例为甲状旁腺腺瘤伴灶性癌变；1例为甲状旁腺增生。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。