ABSTRACT
Objective To compare the image quality of sinus coronal CT scan before and after the involvement of quality control circle (QCC) to explore QCC's effect.Methods A QCC team was founded in April 2014,in which 10 key steps of QCC activities were executed,and the related data from April to November 2014 were analyzed to determine the effect of QCC on coronary sinus CT examination.Results The rate of excellent film was increased from 69.5％ to 96.3％ after the involvement of QCC,and the desired requirement was met.Conclusion QCC contributes to improving coronary sinus CT examination and enhancing the ability of the members,and thus is worthy promoting clinically.
ABSTRACT
Objective To compare the image quality of sinus coronal CT scan before and after the involvement of quality control circle (QCC) to explore QCC's effect.Methods A QCC team was founded in April 2014,in which 10 key steps of QCC activities were executed,and the related data from April to November 2014 were analyzed to determine the effect of QCC on coronary sinus CT examination.Results The rate of excellent film was increased from 69.5％ to 96.3％ after the involvement of QCC,and the desired requirement was met.Conclusion QCC contributes to improving coronary sinus CT examination and enhancing the ability of the members,and thus is worthy promoting clinically.
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Objective To explore coronary CT three-dimensional post-processing standardized display and the construction of digital teaching platform. Methods The conventional display positions of 3D post-processing image were summarized during daily coronary CTA examination, the common place was refined. The construction mode was explored for CTA digital teaching demonstration platform. Results Coronary CTA 3D post-processing standardized display with common and individual property contributed to enhancing the display of coronary images. The CTA digital teaching demonstration platform met the teaching requirements. Conclusion The coronary CT 3D post-processing standardized display and digital teaching platform facilitate the student to master related knowledge.
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<p><b>OBJECTIVE</b>To study the effect of methylene blue on the growth and acid production of Streptococcus mutans, and the effect of methylene blue on acid production metabolism in plaque glycolysis model (i-PGM) in vitro, and investigate the practicability of methylene blue as a new kind of dental caries prevention agent.</p><p><b>METHODS</b>Nephelometer method was used to measure OD value of Streptococcus mutans culture fluid in the different incubation conditions. The kinds and quantities of acid produced by Streptococcus mutans in the different incubation conditions were measured with gas chromatography. pH values of glycolysis buffer media of i-PGM in the different treatment conditions were measured by ORION electrode.</p><p><b>RESULTS</b>(1) The OD value of Streptococcus mutans treated by methylene blue was lower than that by normal saline, and there was significant statistical difference between them. (2) The kinds of acid in three different culture fluid were same, but the total quantities of acid were significantly different among three different culture fluid, in which the total quantities of acid of culture fluids treated by glucose was the greatest, and treated by methylene blue was the lest. (3) The pH value of i-PGM treated by methylene blue was significantly different compared with negative control group, but was not significantly different compared with positive control group.</p><p><b>CONCLUSION</b>Methylene blue can inhibit the growth and acid production metabolism of Streptococcus matans and acid production metabolism of i-PGM.</p>