峡部

There were 31 lumbar isthmic spondylolisthesis cases were treated by granule cancellous bone grafting and vertebral pedicle screw fixation. All of 31 cases were evaluated by standard of Hou Shu-xun and fusion rate after operation.

采用松质骨颗粒椎间植骨、峡部及后外侧植骨加椎弓根钉系统复位固定治疗峡部裂性腰椎滑脱症31例，术后采用侯树勋等制定的疗效评定标准及融合率来评价临床疗效。

Methods Four lumbosacral spinal specimens of human were used to manufacture the intact segmental specimen, then the specimen models were worked out by cutting the isthmic of intact specimens with wire-saw, and then one pure bone-towel or one anterior fusing cage was inserted separately into the model's interbody space to stable the model. Finally, all of the specimens' stiffness of the upper four conditions was measured.

使用4具人尸腰骶椎骨制成空白运动节段标本，用线锯锯断椎弓峡部法制成峡部裂模型标本，再分别用单纯骨块、AFC置入模型标本椎间隙以固定该节段，测试以上4种状态下节段标本的应变、位移、刚度。

SCT MPR techniques have good display ability in spondyloschisis and its secondary abnormity, it is an ideal method in spondyloschisis diagnosis.

SCT容积扫描，MPR重建对峡部裂及其相关继发病变具有良好的显示能力，是检出峡部裂及其继发病变的较理想成像方法。

Results: from the 729 clinic patients X-ray find the spondyloschisis with no spondylolisthesis was 0.68%, with spondylolithesis was 2.79%.

结果：729例病人中X光对于不伴有椎体滑脱的椎弓峡部裂的检出率约为0.68%，对于有椎体滑脱的椎弓峡部裂检出率约2.79%。

MSCT MPR and VR techniques show good display ability in spondyloschisis and its secondary abnormity, it is an ideal method in spondyloschisis diagnosis.

MPR、VR重建成像对峡部裂及其相关继发病变具有良好的显示能力，是检出峡部裂及其继发病变的理想成像方法。

CT was a reliable method at diagnosis of spondyloschisis, which can show the same lay of spondyloschisis from vertebral and small vertebral arthrosis clearly, and help to differentiate diagnoses.

对椎弓峡部裂CT扫描是一个可靠的手段，反角度扫描可以将椎弓峡部裂与椎间小关节同时清晰地展示于一个层面，有利于对该病的诊断及鉴别诊断。

Methods To select 42 lumber spondyloschisis cases which confirmed by CT post??processing, compare its MPR image with routine CT axial image of arcus vertebrae, evaluate their display ability of spondyloschisis.

搜集腰椎SCT容积扫描，经后处理重建检出的腰椎峡部裂42例，分析其MPR成像的CT表现，评价对峡部裂及其继发病变的显示情况。

Methods To select 42 lumber spondyloschisis cases which confirmed by CT postprocessing, compare its MPR image with routine CT axial image of arcus vertebrae, evaluate their display ability of spondyloschisis.

搜集腰椎SCT容积扫描，经后处理重建检出的腰椎峡部裂42例，分析其MPR成像的CT表现，评价对峡部裂及其继发病变的显示情况。

Methods To select 35 lumber spondyloschisis cases which confirmed by CT post-processing, compare its MPR and VR image with routine CT axial image of arcus vertebrae, uate their display ability of spondyloschisis and its secondary abnormity.

搜集腰椎MSCT容积扫描，经后处理重建检出的腰椎峡部裂35例，分析其MPR、VR成像的CT表现，并与常规椎弓CT轴位像进行对照，评价对峡部裂及其继发病变的显示情况。

Spondylolysis were showed in sagittal images. Conclusion: The scan range were increased for the fourth lumbar to first sacroiliac interverteral disc and contained vertebral arch for conventional intervertebral disc. The spiral scanning were performed for lumbar spondyloschisis and with MPR along the direction of vertebral arch. The method is simple and useful for the patients suffered low-back pain.

对常规椎间盘扫描采用对L(下标 4~5)及L5~S1，椎间盘加大扫描范围，包括椎弓根层面的方法，对于轴位扫描发现或可疑峡部裂的患者再做相应椎体螺旋扫描，行平行于峡部的椎弓长轴多平面斜矢状面和矢状面重建，是腰腿痛病人CT检查的简单、实用的有效方法。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。