RESUMO
Some new viewpoints are put forward by comparing the treatment of acupuncture syncope and the statement of its therapeutic effect in ancient and modern literature and in current textbooks and combining the authors’ understanding in clinical practice. Acupuncture syncope is not an acupuncture contraindication. If the body position is notaffected, the needles may not be withdrawn to avoid the consumption of qi. Clinical doctors should, on the one hand, pay attention to the therapeutic effect of acupuncture syncope in clinical practice and, on the other hand, not perform manipulations withstrong stimulation to blindly seek the therapeutic effect because acupuncture syncope has a more marked psychological effect on acupunctured persons.
RESUMO
Objective To identify the necessity to carry out optimization procedure in routine digital radiography (DR) by evaluating changes of patient radiation dose and image waste ratio before and after optimization.Methods Two hundred patients with near-standard body build were enrolled in the study.Half of them undertook routine examination,and the others undertook the examination with bestlyoptimized protocol.The dose-area product (DAP) and entrance surface dose (ESD) were recorded.The image waste ratios in 2 groups were calculated and the reasons for image waste were analyzed.The radiation dose and image waste ratio before and after optimization were compared.Results The ESD,DAP and image waste ratio in bestly-optimized radiography were significantly lower than those in non-optimized radiography (z =9.31,16.22,P＜0.05; x2 =36.5,P ＜ 0.05).Conclusion Using the bestlyoptimized digital radiography,the patient radiation dose and image waste ratio are effectively reduced.