That dose is about 10,000 times that typical exposure rate for the U.S., but it is applied to the cancerous tissue; the total-body exposure during radiation therapy is much less.
治疗中所接触到得辐射量是在美国通常接触到辐射量的10000倍，但是它仅适用于癌组织；在放射性治疗中全身接触的辐射量相对来说是非常少的。
That dose is about 10, 000 times that typical exposure rate for the U.S., but it is applied to the cancerous tissue; the total-body exposure during radiation therapy is much less.
治疗中所接触到得辐射量是在美国通常接触到辐射量的10000倍，但是它仅适用于癌组织；在放射性治疗中全身接触的辐射量相对来说是非常少的。
Objective:To investigate the influence of allogeneic spleen tissue transplantation with low-dose FK506 on allograft tolerance in rats receiving orthotopic liver transplant and the related mechanism.
目的：观察小剂量FK506作用下同种脾组织移植对大鼠肝移植术后免疫耐受的影响，探讨其可能的机制。
Methods Using a homogeneity water equivalent rectangular phantom, the dose gradients at the interface of target volume and normal tissue was evaluated under different scatter radii.
方法采用均质水等效矩形体模，在不同散射半径条件下观察靶区和正常组织界面上的剂量梯度随散射半径的变化。
Epinephrine and dopamine had deleterious effect on oxygen metabolism, while norepinephrine plus low dose of dobutamine improved gastric mucosal perfusion and tissue oxygen utilization.
但是肾上腺素和多巴胺使氧代谢恶化，而去甲肾上腺素与小剂量多巴酚丁胺合用可改善胃粘膜灌注和组织氧利用。
The impact of PET/CT on target volume delineation and dose distributions to normal lung tissue was analyzed.
分析PET/CT融合图像对肿瘤靶区勾画以及对正常肺组织照射剂量分布的影响。
Hepatic and renal functions, and tissue biopsy were measured in rats with therapeutic, toxic and lethiferous dose treatment after a period of time.
分别测定治疗剂量、中毒剂量、致死剂量组小鼠在用药一段时间后的肝肾功能，并进行组织病理学检查。
Objective: To evaluate the feasibility of identifying viable myocardium by applying low dose dobutamine echocardiography (LDDSE) combined with Doppler tissue imaging (DTI).
目的：探讨低剂量多巴酚丁胺负荷超声心动图(LDDSE)结合多普勒组织成像技术(dti)评价存活心肌的可行性。
The quantification of absolute activity in vivo is necessary procedure of estimating the absorbed dose of organ or tissue.
器官组织的绝对活度定量是吸收剂量估算的必要步骤。
The lesion being treated receives a high dose of radiation with minimum risk to nearby tissue and structures.
病变接受高剂量射线的治疗，而临近组织结构却没有损伤。
Tissue damage is a threshold process, each dose curve can be regarded as the threshold curve, degree of injury increases exponentially with distance attenuation.
组织损伤是阈值过程，每条剂量曲线可被视为阈值曲线，损伤程度随距离的增加呈指数衰减。
However, because normal tissue around tumor tissue is also under the irradiation same dosage, so the safe and effective dose is restricted.
然而，由于肿瘤周围正常组织也受到同等剂量射线照射，所以瘤体接受射线的安全有效剂量受到限制。
Results:The comet rate and comet length of each tissue DNA in test groups increased significantly(P<0.05)compared with control group. And it showed a good dose-response relationship.
结果：各照射剂量组小鼠组织细胞拖尾率和拖尾细胞尾长比对照组显著增加（P<0.05），并呈现良好的剂量反应关系。
Objective To clarify feasibility for diagnosing coronary artery disease by quantitative tissue velocity imaging (QTVI) technique during low-dose dobutamine stress echocardiography (LDDSE).
目的探讨应用定量组织速度成像(QTVI)技术结合小剂量多巴酚丁胺负荷超声心动图试验(LDDSE)诊断冠心病的价值。
Objective To assess myocardial viability in patients with myocardial infarction by quantitative tissue velocity imaging (QTVI) during low-dose dobutamine stress echocardiography (LDDSE).
目的探讨应用定量组织速度成像(QTVI)技术结合小剂量多巴酚丁胺负荷超声心动图试验(LDDSE)评价心肌存活性的价值。
Results Nitric oxide was directly toxic to PC12 cells in a dose-dependent manner, and brain tissue homogenate extracts taken from hypoxia preconditioned mice could prevent PC12 cells from NO toxicity.
结果NO对PC12细胞可以产生剂量依赖性的直接毒性作用，而缺氧预适应小鼠脑匀浆提取液能有效对抗NO神经毒性作用。
Conclusion The silver nitrate TRAP method with high sensitivity and specificity can be performed in a shoner period with smaller dose of bioptic tissue.
结论银染TRAP法具有检测标本用量少，周期短，灵敏度高，特异性强等优点。
Results: the experimental group compared with the aging model group, serum and liver tissue SOD activity increased, NO levels decrease, and show dose dependence.
结果：实验药物组与模型组相比，小鼠全血、肝组织中的SOD活力增强，NO的含量减少，且呈剂量依赖关系。
From the observation of intestinal morphology of piglets, the antibiotic group and the medium dose group had the basic integrity of the intestinal tissue structure.
从仔猪肠道形态上观察，抗生素组和中剂量组仔猪肠道组织结构基本完整。
For the soft tissue with a thickness greater than 1 cm, the direct method using a safe dose of radiation is inappropriate for the scarcity of early arrived photons.
对于厘米级以上的软组织，由于早期到达光的比例极小，因此在安全曝光量下直接法是不现实的。
For the soft tissue with a thickness greater than 1 cm, the direct method using a safe dose of radiation is inappropriate for the scarcity of early arrived photons.
对于厘米级以上的软组织，由于早期到达光的比例极小，因此在安全曝光量下直接法是不现实的。
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