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tomographic scanner
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  “tomographic scanner”译为未确定词的双语例句
     Method:A total of200vertebrae from L1~L5of40Chinese people were scanned on a GE LightSpeed QX/i computerized tomographic scanner in the axial plane.
     方法:高速螺旋CT共扫描检查40例国人的200个L1~L5脊椎。
短句来源
     Methods A total of 100 vertebrae from L-5 of 20 Chinese people were scanned by a GE LightSpeed QX/ i computerized tomographic scanner in the axial plane.
     方法 CE LightSpeed QX/iCT扫描仪检查20名中国人的L_(1-5)共100个椎骨。
短句来源
     Methods:Double phase 99Tcm-MIBI imaging was performed in 15 normal controls and 51 patients with primary hyperparathyroidism proven by physical examination and biochemical blood tests(for the latter group,the examination was performed in 1 week before the operation). Tomographic scanner was arranged for part of the patients.
     方法:对15例正常对照者和51例临床表现及生化检查提示原发性甲状旁腺机能亢进的患者,行99Tcm-MIBI双时相甲状旁腺平面显像(患组于术前1周内安排检查),部分患者安排SPECT断层显像,同时采用ROI技术计算摄取比值。
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  相似匹配句对
     SCANNER iN fO
     扫描仪产品概览
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     On Selection of CT Scanner
     谈谈CT机的选择
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     TOMOGRAPHIC IMAGING OF SAR
     SAR层析成像
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     Tomographic inversion of interval velocities
     层速度的tomography反演
短句来源
     Positron emission computed tomography(PET) is a tomographic method that uses short - livedpositron emitting radionuclides and a PET scanner.
     正电子发射计算机断层(PET)是利用发射正电子的短半衰期放射性核素和PET扫描仪进行脏器断层显像的技术。
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  tomographic scanner
The DSR, a high temporal resolution volumetric roentgenographic computed tomographic scanner, was used to scan the volume containing a kidney in 0.13-0.26 s and repeating this scan 8-4 times per s for six s during a renal arteriogram.
      
The DSR, a high temporal resolution volumetric roentgenographic computed tomographic scanner, was used to scan the volume containing a kidney in 0.13-0.26 s and repeating this scan 8-4 times per s for six s during a renal arteriogram.
      
We describe the use of a laser tomographic scanner to objectively measure optic nerve head topography.
      
Quantitative assessment of the optic nerve head with the laser tomographic scanner
      
Development of the operating computerized tomographic scanner system for neurosurgery
      
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Objective:To establish the best starting point for fixing a pedicle screw to the axial center of the pedicle,which promotes safety and accuracy of transpedicular procedures.Method:A total of200vertebrae from L1~L5of40Chinese people were scanned on a GE LightSpeed QX/i computerized tomographic scanner in the axial plane.After images were reconstructed,the coordinates including the distance from the projection point of the lumbar pedicle axis to the midline of back(x)and to the midline of transverse process(y)were...

Objective:To establish the best starting point for fixing a pedicle screw to the axial center of the pedicle,which promotes safety and accuracy of transpedicular procedures.Method:A total of200vertebrae from L1~L5of40Chinese people were scanned on a GE LightSpeed QX/i computerized tomographic scanner in the axial plane.After images were reconstructed,the coordinates including the distance from the projection point of the lumbar pedicle axis to the midline of back(x)and to the midline of transverse process(y)were measured.Result:X coordinates increased from L1to L5,which showed male was longer than female(P<0.05).The average of y coordinates stepped down from L1to L4where it was very close to mid-transverse process.But y was up to L5.Most of y coordinates were above mid-TP(transverse process),where as the variance was considerable.As far as y was concerned,there was significant difference between projection point and traditional position ways.Conclusion:Mid-TP was thought as an important landmark during the transpedicular procedures.But the projection point of lumbar pedicle is not in mid-TP.There are diversity in different person and segments,which become the main issue of high misplace rates.The coordinates of projection point of lumbar pedicle axis obtained individually from reconstructed CT images preoperatively could ensure utmost safety and accuracy of transpedicular procedures.

目的:建立椎弓根螺钉最佳入钉点,提高椎弓根螺钉内固定术的准确性和安全性。方法:高速螺旋CT共扫描检查40例国人的200个L1~L5脊椎。重建后测量400个椎弓根的入点坐标(x,y),即椎弓根轴线在椎骨后表面的投影点与后正中线的距离(x)及与横突中线的垂直距离(y)。结果:x坐标从L1~L5逐渐增大,男性大于女性(P<0.05);y坐标从L1到L4逐渐下移,在L4与横突中线接近重叠,但L5突然上升,与L2节段水平相当,L1~L5y坐标基本上都在横突中线以上,但每组数据变异较大。就y坐标而言,椎弓根轴线投影点与传统入点比较均有差异。结论:横突中线是椎弓根螺钉置入的重要参照标志,但椎弓根轴线投影点并不在横突中线上,不同个体、节段之间y坐标存在的较大差异是高误置率发生的重要原因。对个体而言,术前常规通过CT测量椎弓根轴线在椎骨后表面的投影点数据对椎弓根螺钉的置入有重要指导意义。

Objective A morphological study that focused on transverse process (TP) of lumbar vertebrae was conducted, which would provide detail anatomic data for posterior operations in lumbar spine, especially in posterolateral gutter fusion. Methods A total of 100 vertebrae from L-5 of 20 Chinese people were scanned by a GE LightSpeed QX/ i computerized tomographic scanner in the axial plane. After images reconstruction using Volume Analysis 2 - D reformatting software, the parameters of 200 lumbar transverse...

Objective A morphological study that focused on transverse process (TP) of lumbar vertebrae was conducted, which would provide detail anatomic data for posterior operations in lumbar spine, especially in posterolateral gutter fusion. Methods A total of 100 vertebrae from L-5 of 20 Chinese people were scanned by a GE LightSpeed QX/ i computerized tomographic scanner in the axial plane. After images reconstruction using Volume Analysis 2 - D reformatting software, the parameters of 200 lumbar transverse processes, including width, length, thickness of TP and the angles of inclincation of TP in coronal and horizontal section were measured by the same software. The morphologic structure and segmental difference of TP were also observed. Results There was no significant difference between left and right side of every parameter; Excluding L5 , there was no significant difference between medial and middle width of TP in the same segment (P > 0.05) , but obvious significant difference between medial and lateral one (P < 0.01) ; There was significant difference among the medial, middle and lateral length of TP in the same segment ( P < 0.01) . The length of L[ was the shortest, and was about 10mm.The lengths of L2,4,5 were similar, and were about 15mm. The length of L3 was the longest, and was about 19mm; There was no obvious change from L1-4 in thickness, but the thickness of L5 was double that of L4 . The width and thickness of all segments from medial to lateral gradually changed to narrow and thin. L5 was the greatest in width and thickness among all segments. Axial Inclination projected posteriorly without exception . All coronal inclination almost projected horizontally. Conclusions TP is an important part of posterior lumbar vertebrae. There are some orderlinesses in TP morphologic study, but some parameters express obvious individualy. TP parameters obtained from reformatted GT images preoperatively could ensure utmost safety posterolateral gutter fusion procedures and improve fusion rate.

目的 研究腰椎横突的形态结构,为后路脊柱手术,尤其是后外侧横突间融合术提供详尽的解剖学资料。方法 CE LightSpeed QX/iCT扫描仪检查20名中国人的L_(1-5)共100个椎骨。数据重建后测量200个腰椎横突参数:横突长度、横突宽度、横突厚度、横突冠状面倾斜角和横突水平面倾斜角。观测腰椎横突内外部形态结构及节段性变化特点。结果 各参数左右间差异无显著意义(P>0.05);除L_5外,相同节段内侧、中间宽度差异无显著意义(P>0.05),但与外侧相比差异有显著意义(P<0.01);而相同节段内侧、中间和外侧的厚度均差异有显著意义(P<0.01)。L_1长度最短,约10mm;L_(2、4、5)长度相似,约15mm;L_3最长,约19mm。L_(1-4)厚度节段性变化不明显,但在L_5水平较L_4增大1倍左右。各节段横突宽度、厚度从内到外逐渐变窄、变薄。L_5宽度和厚度在各节段中均最大。横突水平面角均偏向后侧,从冠状面看各节段横突几乎水平走向。结论 横突是腰椎后方的重要结构,虽有一定的形态学规律,但某些横突参数的个性化特点显著,术前利用重建CT详尽地测量横突参数,可以最大程度的保证横突间融合术的安全性...

目的 研究腰椎横突的形态结构,为后路脊柱手术,尤其是后外侧横突间融合术提供详尽的解剖学资料。方法 CE LightSpeed QX/iCT扫描仪检查20名中国人的L_(1-5)共100个椎骨。数据重建后测量200个腰椎横突参数:横突长度、横突宽度、横突厚度、横突冠状面倾斜角和横突水平面倾斜角。观测腰椎横突内外部形态结构及节段性变化特点。结果 各参数左右间差异无显著意义(P>0.05);除L_5外,相同节段内侧、中间宽度差异无显著意义(P>0.05),但与外侧相比差异有显著意义(P<0.01);而相同节段内侧、中间和外侧的厚度均差异有显著意义(P<0.01)。L_1长度最短,约10mm;L_(2、4、5)长度相似,约15mm;L_3最长,约19mm。L_(1-4)厚度节段性变化不明显,但在L_5水平较L_4增大1倍左右。各节段横突宽度、厚度从内到外逐渐变窄、变薄。L_5宽度和厚度在各节段中均最大。横突水平面角均偏向后侧,从冠状面看各节段横突几乎水平走向。结论 横突是腰椎后方的重要结构,虽有一定的形态学规律,但某些横突参数的个性化特点显著,术前利用重建CT详尽地测量横突参数,可以最大程度的保证横突间融合术的安全性,提高融合率。

Objective:To evaluate the clinical value of 99Tcm-MIBI double-phase imaging on anatomical diagnosis of primary hyperparathyroidism(PHPT).Methods:Double phase 99Tcm-MIBI imaging was performed in 15 normal controls and 51 patients with primary hyperparathyroidism proven by physical examination and biochemical blood tests(for the latter group,the examination was performed in 1 week before the operation).Tomographic scanner was arranged for part of the patients.The uptake ratio was calculated and compared...

Objective:To evaluate the clinical value of 99Tcm-MIBI double-phase imaging on anatomical diagnosis of primary hyperparathyroidism(PHPT).Methods:Double phase 99Tcm-MIBI imaging was performed in 15 normal controls and 51 patients with primary hyperparathyroidism proven by physical examination and biochemical blood tests(for the latter group,the examination was performed in 1 week before the operation).Tomographic scanner was arranged for part of the patients.The uptake ratio was calculated and compared by ROI sequence.Results:Comparing the imaging results with those of histopathology,the sensitivity percentages of early and delayed phases to parathyroid adenomas were 78.3%(36/46)and 91.3%(42/46),and those to parathyroid hyperplasia were 23.8%(5/21)and 47.6%(10/21)respectively.Six lesions of parathyroid were demonstrated by SPECT tomographic imaging.The positive rate of lesions(weighting between 500 to 1500 mg)was 82.4%,and all lesions over 1500 mg appeared to be positive,those less than 500mg appeared to be negative in 99Tcm-MIBI double-phase imaging.For positive parathyroid adenoma group,the uptake ratio of delayed phase was significant higher than that of early phase(P<0.01),and the ratio of both phases were significant higher than that of the normal controls(P<0.01).Conclusion:99Tcm-MIBI double-phase imaging had higher clinical value on anatomical diagnosis of PHPT,and the measurement of uptake ratio and tomographic imaging were beneficial for improving the positive diagnosis rate.

目的:评价99Tcm-甲氧基异丁基异腈(MIBI)双时相显像对原发性甲状旁腺机能亢进症(PHPT)定位诊断的价值。方法:对15例正常对照者和51例临床表现及生化检查提示原发性甲状旁腺机能亢进的患者,行99Tcm-MIBI双时相甲状旁腺平面显像(患组于术前1周内安排检查),部分患者安排SPECT断层显像,同时采用ROI技术计算摄取比值。结果:①与手术结果对比,99Tcm-MIBI双时相甲状旁腺显像在早期相和延迟相对腺瘤的诊断灵敏度分别为78.3%(36/46)和91.3%(42/46),对增生灶的诊断灵敏度分别为23.8%(5/21)和47.6%(10/21)。有6个病灶通过SPECT断层显像得以确诊(包括1个异位腺瘤病灶)。②术后证实甲状旁腺病灶重量大于1500mg者99Tcm-MIBI双时相显像均为阳性,小于500mg者均为阴性,重量在500 ̄1500mg者阳性率为82.4%。③阳性腺瘤组摄取比值,延迟相明显高于早期相(P<0.01),两个时相均明显高于正常对照组(P<0.01)。结论:99Tcm-MIBI双时相显像对于定位诊断PHPT具有较高的临床价值,摄取比值测定和断层显像有利于提高阳性诊断率。

 
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