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In view of the problems existing in medical image network teaching, such as redundant and rigid curriculum system, obsolete structure, untimely updates, lack of supervision system and poor stability of network security and so on, we explored how to improve the medical image network teaching from the fusion of traditional teaching, optimizing curriculum system, perfecting the medical imaging system of autonomous learning, encouraging online communication, creating a good atmosphere, increasing invest-ment in software development and multi-sectoral collaboration, in order to complete the transfer of knowl-edge more effectively, and promote the good development of medical imaging teaching.
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It has been a general trend to open the 5+3 medical personnel training mode of radiology in China.But at present,there are still a lot of problems during the process,such as,lack of training plan,unified teaching materials and examination index for reference,lack of learning consciousness and self-discipline among the students who participate in the standardization training,lack of adequate teaching resources in the standardization training base,and so on.In order to cultivate qualified and high-quality radiologists,this paper discussed the ways of forming a new set mode of 5+3 medical personnel training in the radiology department through exploration and practice,including strengthening teachers' construction and building a professional teachers troop,reforming the teaching method of standardization training,improving the teaching base infrastructure,establishing and perfecting the assessment evaluation mechanism.
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Objective To observe the role and mechanism of CO-releasing molecules (CORMs) -2in the injured lung induced by ischmia-reperfusion (IR) of hind limbs of rat.Methods The rat model of lung injury was made by ischemia in hind limbs of rat for two hours and then reperfusion for two hours as well.There were 40 SD rats randomly ( random number) divided into 5 groups ( n =8 ),namely sham ischemia-reperfusion (I/R) group,sham I/R + CORM-2 group,I/R group,I/R + CORM-2 group and I/R + DMSO (Dimethylsulfoxide) group. Rats in sham I/R group underwent laparotomy without infrarenal aorta occlusion.The lung tissue structure,polymorphonuclear neutrophil (PMN) count,wet-to-dry weight ratio (W/D), malondialdehyde (MDA) content, myeloperoxidase (MPO) activity, intercellular adhesion molecule-1 ( ICAM-1 ),nuclear IκBα degradation and NF-κB activity in the lung were measured.Results Compared with the sham I/R group,the number of PMNs in lung,W/D,MDA content,MPOactivity,ICAM-1 and NF-κB activity significantly increased in I/R group,whereas nuclear IκBα decreased (P ＜ 0.01).Compared with the I/R group,the number of PMNs in lung,W/D,MDA content,MPO activity and ICAM-1 significantly decreased in I/R + COMR-2 group ( P ＜ 0.01 ), while nuclear IkBαincreased. Conclusions These data demonstrate that CORM-2 attenuates limb I/R-induced lung injury by inhibiting ICAM-1 protein,NF-κB pathway and the leukocytes sequestration in the lung following limb I/R in rats,suggesting that CORM-2 could be used as one of the most valuable therapeutic agents.
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Objective To analyze the features of CT images of secondary pulmonary lymphoma. Methods The dats of totally 20 patients with secondary pulmonary lymphoma which were proven through lung puncture pathology or clinical treatment were retrospectively analyzed. There were 19 non-Hodgkin lymphoma cases and 1 Hodgkin lymphoma case. All cases received thorax CT scanning, and 13 of them had enhanced CT scanning. Results There were many patterns in our CT findings for secondary pulmonary lymphoma, mixed pattern in 9 cases, mass (nodule) in 4 cases, pneumonic-alveolar in 3 cases, bronchovascular-lymphatic in 3 cases, and miliary in 1 case. There were 13 cases accompanying with mediastinal lymphadenovarix, 5 cases with pleura invasion, 11 cases with pleural effusion, and 2 cases with pericardium involvement. Mild enrichment was found in 7 cases and obviously enrichment was seen in 1 case. Conclusion Diversity is the characteristic feature of secondary pulmonary lymphoma. Combined with other thorax findings, CT scaning can make a definite diagnosis.
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Objective:To discuss the presentation of leukoaraiosis(LA) by diffusion tonsor imaging(DTI) and the changes of LA lesion diffusivity and anisotropy.Methods:A total of 30 cases of LA and 20 normal cases with matched age underwent conventional MRI scan and DTI.ADCav(average diffusion coefficient) and FA(fraction anisotropy) values were measured in the LA lesions,the normal appearing white matter(NAWM)around the LA lesions and the corresponding normal white matter in the normal group.All parameters were compared statistically to reveal whether there was difference between the lesions and the NAWMs.And those parameters of the NAWMs and corresponding regions of normal white matter in control group were also compared for the difference.Results:LA lesions presented to be high signal on ADCav map and low signal on FA map.Compared with NAWM in the LA cases,ADCav value of the LA lesion was higher,FA value was lower(P
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0.05).ADC values in the old group were higher than those in the young group(P