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- 四four
- 方法 对比分析经胃CTVE +二维CT、胃造影 (GI)、纤维胃镜 (FG)检查的 5 2例 6 5个胃部病灶 ,“四定”准确率。Methods 52 patients (65 foci of stomach) were examined by CTVE combined with 2D CT, gastrointestinal series (GI) and fibric gastroscopy (FG). The accurate ratio in quantitative, locating, qualitative and staging diagnoses was compared.
- 维dimension
- 二维CT法不能直接测量前倾角 ,但可以测量扭转角。2D CT is an accurate and reliable method to measure the torsion angle rather than anteversion angle.
- 四维CTFour dimensional CT
- 立体定向放射治疗的剂量累积过程和二维CT图像重建中的直接反投影过程是类似的。This procedure of dose distribution in radiotherapy treatment was similar to that of the back-projection in 2D CT image reconstruction.
- 四维空间four dimensional space
- 在GEAdvantageWorkstation 4 .0工作站进行MPR、SSD图像重建 ,并与二维CT(2DCT)及X线平片比较 .The results were compared with two-dimensional CT(2DCT) and X-ray plain film.
- 四维的，四度空间的由四维确定或表现的，尤指三个空间维度和相对理论中的时间维度Specified by or exhibiting four dimensions, especially the three spatial dimensions and single temporal dimension of the relativity theory.
- 与X线平片、二维CT影像比较,三维重建在显示颌骨骨折类型、位置、范围、骨折移位、塌陷深度等方面明显占优。Compared with radiography and 2-D CT,3D CT was superior in revealing the location,displacement,accompanying fractures and deformities with high resolution and vivid visualization.
- 双四维double-four-dimension
- 四维矢four vector
- 利用指示克里金方法对微观CT层析图像中的剩余油图像和孔隙图像进行了分割,得到了二维CT层析图像中的孔隙以及油水分布。Indicator Kriging Method is used to perform the segmentation on remaining oil and permeability images in microscopic CT tomographic images, by which pore and remaining oil distributions in 2D CT tomographic images are obtained.
- 四维势four potential
- 常规X线对各种类型的髁突骨折均有显示不准确现象 ,横断位的二维CT对 3例髁突横行骨折有不准确显示 ,三维CT可清楚地显示各种类型的髁突骨折。Conventional X ray film is poor in showing the mandibular condyle fractures. 2D CT of the cross section is not accurate in showing 3 cases of the mandibular condyle horizontal fractures. 3D CT is the best method in showing the mandibular condyle fractures.
- 四维性four dimensionality
- 四维HMM4-D HMM
- 四维钙Four Vitamins and Calcium Gluconate Tablet
- 四维地震4D seismic
- 四维瓷业Shiwei Porcelain Industry Co.
