ABSTRACT
Objective:To explore the application of scenario simulation and rapid film reading training in the standardization of cervical vertebra DR examination in radiology department.Methods:Using the method of scene simulation in the examination room to take DR films of cervical vertebra, two senior technicians in charge evaluated and guided the deficiencies of junior technicians from the aspects of patient check, exposure conditions, body position placement, film printing, inspection safety and radiation protection. Every morning, DR images of cervical vertebra were randomly selected and read quickly, and the junior technicians should quickly browse the images within one minute and make quality control evaluation. Then the senior technician in charge pointed out the shortcomings of the evaluation and related improvement methods. After that, the technical specification manual of cervical vertebra DR was compiled based on the deficiencies and problems found by each technician, and 200 patients aged 18-55 years, without abnormal movement and no internal fixation before and after the establishment of standardization were randomly selected in group A (before standardization) and group B (after standardization). The image quality and repetition projection rate of group A and group B before and after the standardization were compared. SPSS 25.0 was used to analyze the data.Results:The image quality score of group B (8.83±0.33) was higher than that of group A (8.45±0.30), and the repetition projection rate of group B (2%) was lower than that of group A (9%), with statistical significance ( P<0.05). Conclusion:Through the training mode of rapid film reading and scenario simulation, the standardization of cervical vertebra DR examination technology suitable for the situation of the department has been established, which effectively solves the problem of abstraction in the technical teaching of radiology department. The standardization establishment plays an important role in standardized training, for which, the technicians can quickly grasp the work process of the department and the corresponding examination technology during participating in the standardization establishment and training process.
ABSTRACT
Purpose To compare the difference of CT coronary artery imaging quality under highflow oxygen uptake and normal breathing, and to investigate the effect of high flow oxygen uptake on the quality of CT coronary artery imaging.Materials and Methods 132 patients underwent coronary CTA examination using 256-slice CT (Philips), among them 71 patients were supplied with highflow oxygen, and the other 61 were asked to breathe normally. Coronary arteries were post-processed and reconstructed on AW 4.4 workstation. Scanning completion rate, signal to noise ratio (SNR), contrast to noise ratios(CNR) and image quality score ofcoronary segment using these two prospective ECG-gating techniques were compared.Results The scanning completion rate and image quality score of the highflow oxygen uptake group were significantly superior to those of the normal breathing group (P0.05).Conclusion Imaging quality of coronary CTA can be improved using highflow oxygen uptake with reduced patient radiation dose, thus worth being used clinically as a simple and practicable method.