胸腔镜肺小结节切除术前微弹簧圈定位的临床应用研究

目的:研究孤立性肺结节(SPN)胸腔镜术前CT引导下双弹簧圈精准标记定位的应用价值。方法:回顾分析43例SPN胸腔镜术前定位病例资料，包括双弹簧圈组22例，Hook-wire定位组21例。统计双弹簧圈定位的术中、术后并发症，衔接期时间以及作楔形切除所用时间，并将两组结果进行对比分析。结果:两组病例定位均取得成功；双弹簧圈组的气胸发生率(9.0%)，肺出血发生率(9.0%)，胸痛发生率(9.0%)均低于Hook-wire组，其中肺出血发生率与Hook-wire组比较，差异有统计学意义(P＜0.01)；衔接时间双弹簧圈组（15.38±8.32）h长于Hook-wire组（4.21±3.29）h，差异有统计学意义（P＜0.05）；作楔形切除所用时间双弹簧圈组(21.01±7.14)min与Hook-wire组(18.22±5.18)min差异无统计学意义(P＞0.05)。结论:采用双微弹簧圈进行SPN胸腔镜手术前精准标记定位安全可靠、效果良好，与Hook-wire定位比较并发症发生率更低，并可获得更长的衔接期，具有较高的应用价值。     

Elastic Characteristics of Digital Cores from Longmaxi Shale Using Lattice Spring Models

Effective medium methods for the attribution of micro-structures to macro elastic properties of shales are important for the prediction of sweet spots in the shale-gas production. With X-ray micro-computed tomography (XMCT), the micro-structures of shale core samples from Longmaxi Formation are visualized and characterized by 3D digital images. As an efficient alternative to conventional effective medium methods for estimating elastic properties, we propose a consistent workflow of lattice spring modeling (LSM) to emulate the digital cores using three types of lattices. Particular attention is paid to investigate the effective Young's moduli, Poisson's ratios, and preferred orientations, by uniaxial compression tests along two directions. Within elastic deformation, the impact of lattice arrangements on the anisotropy is even more than those of stress disturbances and micro-structural features. Compared with analytical approximations and theoretical predictions, the LSM numerical scheme shows general applicability for heterogeneous porous rocks.     

Cone-beam computerized tomography evaluation of canine retraction using micro implant and conventional anchorage

ObjectiveVarious anchorage techniques have been designed for canine retraction. The aim was to measure and compare the rate of canine retraction with conventional method and micro implant using CBCT.Materials and methodsSample size comprising of 17 subjects were scheduled for extraction of all first premolars. After leveling and aligning, titanium micro implants were placed between the roots of the second premolar and the first molars on right side, in both the arches. Pre and post retraction CBCT scans were taken. Retraction was done using sliding mechanics using stainless steel arch wire.ResultsThe maxillary right canine (micro implant) retracted by 6.75 mm and tipped distally by 9.51° at a rate of 1.05 mm/month while the mandibular right canine retracted by 4.83 mm and tipped distally by 7.88° at a rate of 1.13 mm/month. On the left side (conventional) with molar as a source of anchorage, maxillary canine retracted by 6.03 mm and tipped distally by 6.51° at a rate of 1.46 mm/month while the mandibular canine retracted by 5.03 mm and tipped distally by 4.34° at a rate of 1.15 mm/month.ConclusionImplants can serve as a source of anchorage.     

钟摆矫治器联合颊侧推簧远移磨牙的疗效分析

目的：评价钟摆矫治器联合颊侧推簧远移磨牙的疗效.方法：选择40例牙性安氏Ⅱ类错（牙合）畸形的患者,随机均分为两组：钟摆矫治器联合颊侧推簧远移磨牙组（组1）和头帽口外弓远移磨牙组（组2）,在治疗开始前（T0）和远移磨牙完成时（T1）分别拍摄侧位头影定位片进行头影测量,t检验分析组内和组间的差异.结果：组1和组2远移磨牙的平均距离分别是（4.48±1.63） mm、（2.68±1.71） mm;组1和组2磨牙远中倾斜的平均角度分别是5.46°±3.23°、1.02°±2.16°;组1上颌中切牙未发生明显的唇倾和唇向移位,而组2上颌中切牙发生了较为明显的腭侧移位.结论：钟摆矫治器联合颊侧推簧远移磨牙可有效防止前牙支抗的丧失、控制磨牙的近中颊侧旋转.     

Comparison of Sonography and Magnetic Resonance Imaging for Spring Ligament Abnormalities

Objective. The purpose of this study was to determine whether sonography is as accurate as magnetic resonance (MR) imaging for depicting abnormalities of the spring ligament in patients with symptomatic posterior tibial tendon (PTT) dysfunction. Methods. Sixteen patients (18 ligaments) with symptomatic PTT dysfunction were prospectively evaluated with sonography and MR imaging. Results. Magnetic resonance imaging showed spring ligament tears in 8 of 18 feet, including 6 incomplete tears and 2 complete tears. Sonography showed spring ligament tears in 7 of 18 feet, including 6 incomplete tears and 1 complete tear. The findings of sonography and MR imaging were concordant in 17 of 18 feet (94%). Six of the 8 spring ligament tears on MR imaging were associated with posterior tibial tendinosis or tears. Conclusions. Sonography is an effective imaging option in assessing spring ligament abnormalities in patients with symptomatic PTT dysfunction.     

再议我国医用矿泉的分类命名及表示法

再议我国医用矿泉的分类命名及表示法张恒久王占东目的为充分发挥我国医用矿泉的医疗保健作用，尽快统一医用矿泉的分类、命名和表示方法，提出本人修订意见，与同道探讨。方法查阅国内、国外矿泉医学资料，结合作者实践。结果１医学矿泉定义：凡自然涌出或动力开采、含...     

兴城矿泉浴治疗神经衰弱疗效观察及对脑电阻图的影响

为了探讨矿泉浴治疗神经衰弱的效果，我们采用兴城矿泉浴治疗本病３０例，并与内服天麻丸治疗３１例进行对比观察，疗程均为２０天，观察临床疗效和脑电阻图变化，观察组治愈率６６．７％，总有效率９６．７％，分别与对照组比较Ｐ＜０．０１和Ｐ＜０．０５，矿泉浴疗组疗效显著。治疗前两组脑电阻图改变无显著差异（Ｐ＞０．０５）。治疗后矿泉浴组恢复明显，前后对比Ｐ＜０．０１，组间对比Ｐ＜０．０５。差异显著。脑电阻图变化与临床疗效呈正相关。表明兴城矿泉浴是治疗神经衰弱的有效方法，脑电阻图可作为判断其临床疗效客观指标之一。     

矿泉浴治疗慢性下腰痛的疗效评价

目的　评价兴城矿泉浴治疗慢性下腰痛 (CLBP)的疗效。方法　 78例CLBP患者随机分为矿泉浴组和淡水浴组 (各 3 9例 ) ,两组均保持入组前所用的其余保守治疗方法不变。矿泉为兴城矿泉 ,淡水为兴城饮用自来水 ,均采用全身浸浴法 ,水温 3 8～ 40℃ ,每日 1次 ,每次 2 5～ 3 0分钟 ,2 0次 1个疗程 ,在疗程开始前和疗程结束后各评定腰腿痛积分 1次。结果　矿泉浴组腰腿痛总积分治疗前 3 0 .2 4± 4.87,治疗后 9.64± 1 .0 5 ,差异显著 (P <0 .0 1 ) ;淡水浴组腰腿痛总积分治疗前 2 9.75± 4.47,治疗后 1 9.98± 3 .5 6,差异显著 (P <0 .0 5 )。两组积分改善值除椎管内积分外 ,矿泉浴组均明显高于淡水浴组 (P <0 .0 1 )。结论　兴城矿泉浴能明显缓解慢性下腰痛患者的症状和体征。     

新疆天山,阿尔泰山山地森林脑炎自然疫源地考察报告

1964～1966年我们考察了位于新疆天山山脉的15个县的林区及阿尔泰山山脉的3个县的林区,发现全沟硬蜱(Ixodes persulcatus)分布于海拔1500～1800m的森林草原景观中。并从天格尔山北坡的乌鲁木齐(N43°33′,E87°07′)、昌吉县林区(N43°30′,E86°55′),依连哈比尔尕山北坡的玛纳斯(N43°53′,E86°06′)、沙湾县林区(N43°56′,E85°12′),婆罗克努山南坡的尼勒克县林区(N44°02′,E82°38′),科古琴山南坡的霍城县林区(N44°28′,E81°10′),那拉提山北坡的新源(N43°16′,E84°01′)、巩留县林区(N43°11′,E82°44′)和哈尔克山北坡的特克斯(N43°59′,E81°55′)、昭苏县林区(N42°48′,E80°35′)采集的全沟硬蜱分离出森林脑炎病毒(Tick-borne encephalitis flavivirus)。从而判定上述地区存在森林脑炎自然疫源地。全沟硬蜱为主要媒介,其带毒率介于14.3％～47.7％。狍(Capreolus capreolus)、狐(Vulpes vulpes)、灰旱獭(Marmotabaibacina)、牛、马和羊均可作为该蜱的天然饲养者,从它们的血清中均检出森林脑炎病毒中和抗体。在疫源地内有散发病例发生。查布察尔(N43°34′,E81°08′、哈巴河(N48°28′,E86°42′)、奇台(N43°38′,E89°42′)、吉木萨尔(N43°49′,E89°)因采集材料过少尚不能确定