target volume

Results 1. The dose distribution of the improved plan could meet the requirements for the target volume.

结果（1）改进方案可满足鼻咽和颈部计划靶体积的剂量要求。

Functional im-aging ( PET or SPECT) and image fusion technologies is useful to dehneate accurately biological target volume in NSCLC.

S PECT等功能显像以及图像融合技术的发展为准确定位NSCLC生物靶区提供了可能。

Conclusion: In spiral CT simulator scan, using overlapping reconstruction with thin slice is advisable in determining gross target volume of tumor.

结论：在螺旋CT模拟扫描中，采用薄层的重叠重建在肿瘤靶区体积的制定中是切实可行的。

The research parameters include the high dose coverage for target volume, Dose Volume Histogram and DVH parameters, and dose homogeneity index.

比较指标包括等剂量曲线对靶区的包容情况、剂量体积直方图及参数、剂量均一性指数等。

Prospective Trial of Target Volume Delineation for Radiotherapy in Nasopharyngeal Carcinoma

鼻咽癌照射靶体积划定的临床探讨

Influence of CT/ MRI fusion image on target volume and 3-D conformal radiotherapy in nasopharyngeal carcinoma

CT/MRI影像融合对鼻咽癌肿瘤靶区及三维适形治疗影响

The commonly-used methods of target volume calculation are background-threshold, max threshold, and background-max threshold.

目前常采用的靶体积的计算方法有本底闯值法，最大值结合阈值法，本底与最大值结合阈值法等。

Three-dimensional margin expansion RFOM gross tumour volume to planning target volume

从肿瘤体积到计划靶体积的三维边缘扩展

Relationship Comparative Study Between Prescription Volume and Target Volume in Gamma Knife Dose Planning

伽玛刀剂量计划系统照射容积和靶区容积的相关性比较

The accurate determination of biological target volume in non-small cell lung cancer ( NSCLC) is essential for the three-dimensional and intensity modulated radiation therapy.

准确勾画非小细胞肺癌（NS CLC）的生物靶区对非小细胞肺癌（NSCLC）三维适形调强放疗有重要的作用。

Measuring planning target volume margin in kV cone beam CT guided three-dimensional conformal radiotherapy of brain metastases carcinoma

千伏锥形束CT测量脑转移瘤放疗计划靶区外放研究

The Application Research of Optical Flow Method in Target Volume Motion Image Registration

光流法在靶区运动图像配准中的应用研究

The entire process of radiotherapy consists of: the identification of planning target volume, the design and implementation of the treatment plan.

放射治疗全过程主要包括患者靶区的确定、治疗计划的设计和治疗计划的执行。

The advantage of IMRT is to protect organs at risk and to create enough dose in the target volume.

它的优点是更好的保护紧要器官，使靶区达到足够的剂量。

Factors Influencing Clinical Target Volume Delineation of Intact Breast in Intensity-modulated Radiotherapy for Breast Cancer

影响乳腺癌调强适形放射治疗全乳临床靶区确定的因素

Application of PET-CT in delineation of radiotherapy planning target volume for glioma

PET-CT在脑胶质瘤放射治疗靶区确定中的应用

Compare the radiation dose of target volume and normal organs 、 dose distribution and conformal index in dose-volume histogram ( DVH).

在剂量体积直方图（DVH）上分别对四组计划比较靶区和正常组织器官照射剂量、靶区内剂量分布均匀性和适行指数。

A Study of Planning Target Volume Determination in Three-Dimensional Conformal Radiotherapy for Nasopharyngeal Carcinoma

鼻咽癌三维适形放疗计划靶体积确定的研究

A Proposal of Dose-prescription for Clinical Target Volume of NSCLC

非小细胞肺癌亚临床病变剂量处方的建议

IMRT is particularly suitable for NPC due to the irregular target volume and proximity of critical structures.

由于鼻咽癌靶区的不规则性且周边临近重要组织结构，因此调强放射治疗非常适合鼻咽癌的治疗。

CONCLUSIONS: The 3D plans have pitfalls of geometric miss or over coverage of target volume.

结论：3D计划存在遗漏靶区或过度扩大靶区的缺陷。

Local control rate of nasopharyngeal cancer was positively correlated with the target volume dose.

鼻咽癌的局部控制率与靶体积的照射剂量呈正相关。

Considered of pathology, only isocenter number and target volume significantly affected the tumor control interval.

如果考虑到肿瘤恶性程度，只有等中心数和肿瘤体积对肿瘤控制时间有显著影响。

Lower esophageal target volume in the Y axis, X axis, Z axis movement and lesion size.

下段食管癌靶区在Y轴、X轴、Z轴方向的移动与病变大小有关。

Shows the degree of respiratory movement in patients with esophageal carcinoma developing within the target volume ( ITV) of the impact with statistical significance.

显示了呼吸动度在食管癌患者制定内靶区（ITV）中的影响具有统计学意义。

To verify the rationality of target volume delineation and the clinical effect for nasopharyngeal carcinoma ( NPC).

目的：通过分析三维适形放疗的临床结果，初步探讨食管癌靶体积勾画的合理性。

Effects of Spiral CT Reconstruction Interval on Gross Target Volume of Tumor

螺旋CT重建间隔对肿瘤靶区体积的影响

Advances in research on biological target volume and conformal intensity-modulated radiotherapy

生物靶区与生物适形放疗研究进展

The 20 Gy isodose line covered the target volume.

20Gy的等剂量线包绕靶区。

All plans were compared according to the planning target volume coverage, dose-volume histogram and other dosimetric parameters of normal tissues.

根据计划靶区的等剂量分布、体积-剂量直方图以及其他的剂量学指标，比较两种不同治疗计划的优劣。