Published in Medical physics
Dosimetric assessment following permanent prostate brachytherapy (PPB) commonly involves seed localization using CT and prostate delineation using coregistered MRI. However, pelvic CT leads to additional imaging dose and requires significant resources to acquire and process both CT and MRI. In this study, we propose an automatic postimplant dosimet...
The titanium nitride (TiN) has mechanical properties that are useful in a wide range of applications. In special, it is being investigated to improve the surfaces of bone implants. The mechanical properties of TiN films deposited by reactive magnetron sputtering and their correlations with microstructure will be investigated in this dissertation as...
The titanium nitride (TiN) has mechanical properties that are useful in a wide range of applications. In special, it is being investigated to improve the surfaces of bone implants. The mechanical properties of TiN films deposited by reactive magnetron sputtering and their correlations with microstructure will be investigated in this dissertation as...
An instrument to measure the intensity (energy fluence rate) of photons in the mammography range (22 to 33 kVp) and the tube voltage of a mammograph. The instrument consists of a chamber with a pyroelectric sensor of lead methaniobate (PbNb2O6) and its signal conditioning circuit. Polyacid was used to make the pyroelectric chamber in a 3D printer. ...
An instrument to measure the intensity (energy fluence rate) of photons in the mammography range (22 to 33 kVp) and the tube voltage of a mammograph. The instrument consists of a chamber with a pyroelectric sensor of lead methaniobate (PbNb2O6) and its signal conditioning circuit. Polyacid was used to make the pyroelectric chamber in a 3D printer. ...
An instrument to measure the intensity (energy fluence rate) of photons in the mammography range (22 to 33 kVp) and the tube voltage of a mammograph. The instrument consists of a chamber with a pyroelectric sensor of lead methaniobate (PbNb2O6) and its signal conditioning circuit. Polyacid was used to make the pyroelectric chamber in a 3D printer. ...
Published in Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology
目的： 探究临床常用不同作用机制的保肝药物对X线照射后人肝实质细胞HL-7702增殖的影响，为放射性肝脏损伤治疗过程中保肝药物的选择提供初步的理论依据。 方法： 采用6 MV X射线，10 Gy的照射剂量对人肝实质细胞HL-7702细胞系进行照射，分别在照射前、照射后24、48、72 h于倒置显微镜下观察细胞形态，采用四甲基偶氮唑盐（MTT）法测定细胞存活率，评价射线对肝实质细胞HL-7702的作用。选用保肝药物作用机制中最可能与放射性肝脏损伤发生机制有关的三类及其代表性药物，根据临床用药稀释倍数及相关参考文献，用全培养基稀释成相应的浓度梯度后作用于射线损伤的细胞，MTT法筛选出有效浓度，然后进行药物效果的对比。对射线损伤的肝细胞增殖修复效果明显者检测超氧化酶歧化酶（SOD）、丙二醛（MDA...
Necrotizing enterocolitis (NEC) is characterized by ischemic necrosis of the intestinal mucosa of preterm newborns. Since there is a suspicion of NEC, a routine of abdominal radiographs is instituted according to the severity of the disease. The main radiological signs of patients with NEC are generalized abdominal distension, intestinal pneumatosi...
Necrotizing enterocolitis (NEC) is characterized by ischemic necrosis of the intestinal mucosa of preterm newborns. Since there is a suspicion of NEC, a routine of abdominal radiographs is instituted according to the severity of the disease. The main radiological signs of patients with NEC are generalized abdominal distension, intestinal pneumatosi...
Necrotizing enterocolitis (NEC) is characterized by ischemic necrosis of the intestinal mucosa of preterm newborns. Since there is a suspicion of NEC, a routine of abdominal radiographs is instituted according to the severity of the disease. The main radiological signs of patients with NEC are generalized abdominal distension, intestinal pneumatosi...
