Mobile computed tomography (CT) can be used for critically ill patients’ bedside CT scans in an operating room or intensive care unit because of its flexibility and convenience compared to conventional CT. Meanwhile, attention has been paid to the ionizing radiation hazards brought by mobile CT scans due to a lack of wall shielding protection from a fixed machinery room, especially the control of radiation dose to the surrounding medical staff and the public. This article mainly discusses the radiation protection of mobile CT from aspects such as radiation protection principles, protection management, and protection of examinees, staff, and the public by summarizing relevant standards, guidelines, and literature in China and globally to provide a reference for the standardized use of mobile CT.

Objective To observe the clinical efficacy of Zishen Shujing decoction in the treatment of kidney deficiency and liver depression type premature ovarian failure(POF).Methods A total of 70 female POF patients who visited the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine from July 2023 to April 2024 were selected as the research subjects,they were divided into traditional Chinese medicine(TCM)treatment group(n=35)and Western medicine treatment group(n=35)by using a random number table method.Western medicine treatment group was treated with femostone,and TCM treatment group was treated with Zishen Shujing decoction.Differences of TCM syndrome scores and clinical efficacy were compared between two groups before and after treatment,and changes of peripheral blood follicle-simulating hormone(FSH),anti-Müllerian hormone(AMH),anal follicle count(AFC)and interleukin(IL)-4,IL-6 before and after treatment were compared.Results The effective rate of TCM treatment group was higher than that of Western medicine treatment group,the difference was statistically significant(P<0.05).The TCM syndrome scores after treatment were lower than before treatment,and TCM treatment group was lower than Western medicine treatment group,the difference was statistically significant(P<0.05).After treatment,FSH levels in two groups were lower than before treatment,AMH and AFC levels were higher than before treatment,and improvement of hormone levels,AMH and AFC in TCM treatment group was better than that in Western medicine treatment group,with statistical significance(P<0.05).After treatment,the anti-inflammatory factors IL-4 were increased,and the pro-inflammatory factors IL-6 were decreased,and the increase effect of anti-inflammatory factors and the decrease effect of pro-inflammatory factors in TCM treatment group were better than those in Western medicine treatment group with statistical significance(P<0.05).Conclusion Zishen Shujing decoction can improve the clinical symptoms,serum hormone levels of POF patients with kidney deficiency and liver depression,improve ovarian function,reduce immune inflammation,reduce oxidative stress,and effectively improve the quality of life of patients.

Objective To observe the clinical efficacy of Zishen Shujing decoction in the treatment of kidney deficiency and liver depression type premature ovarian failure(POF).Methods A total of 70 female POF patients who visited the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine from July 2023 to April 2024 were selected as the research subjects,they were divided into traditional Chinese medicine(TCM)treatment group(n=35)and Western medicine treatment group(n=35)by using a random number table method.Western medicine treatment group was treated with femostone,and TCM treatment group was treated with Zishen Shujing decoction.Differences of TCM syndrome scores and clinical efficacy were compared between two groups before and after treatment,and changes of peripheral blood follicle-simulating hormone(FSH),anti-Müllerian hormone(AMH),anal follicle count(AFC)and interleukin(IL)-4,IL-6 before and after treatment were compared.Results The effective rate of TCM treatment group was higher than that of Western medicine treatment group,the difference was statistically significant(P<0.05).The TCM syndrome scores after treatment were lower than before treatment,and TCM treatment group was lower than Western medicine treatment group,the difference was statistically significant(P<0.05).After treatment,FSH levels in two groups were lower than before treatment,AMH and AFC levels were higher than before treatment,and improvement of hormone levels,AMH and AFC in TCM treatment group was better than that in Western medicine treatment group,with statistical significance(P<0.05).After treatment,the anti-inflammatory factors IL-4 were increased,and the pro-inflammatory factors IL-6 were decreased,and the increase effect of anti-inflammatory factors and the decrease effect of pro-inflammatory factors in TCM treatment group were better than those in Western medicine treatment group with statistical significance(P<0.05).Conclusion Zishen Shujing decoction can improve the clinical symptoms,serum hormone levels of POF patients with kidney deficiency and liver depression,improve ovarian function,reduce immune inflammation,reduce oxidative stress,and effectively improve the quality of life of patients.

Objective: To understand the mortality and influencing factors on injecting drug users (IDUs) with HIV/AIDS, in Guizhou province, 1996-2015. Methods: A retrospective cohort study was conducted on IDUs with HIV/AIDS that were reported through national comprehensive HIV/AIDS information system, in Guizhou province during 1996-2015. Cox proportional hazard regression model was used to analyze the influencing factors on the mortality of HIV/AIDS. Results: A total of 3 958 cases of IDUs with HIV/AIDS were recruited in this study, with all-cause mortality rate of 44.01% (1 742/3 958) and total mortality rate of 7.80/100 person-years, respectively. The median survival time between diagnosis and death was 8.08 years. Mortality rate was 3.57/100 person-years in the group receiving antiretroviral therapy (ART). The mortality appeared to be 4.08/100 person-years in the group who were on methadone maintenance treatment (MMT). Data from the multiple regression analysis indicated that factors of gender, ethnicity, age when HIV/AIDS diagnosis was made, CD₄⁺T lymphocyte (CD₄) count at the first testing, ART and MMT were significantly associated with deaths among these people. The risk of death in females was 0.82 times (95%CI: 0.69-0.98) higher than that in males. The risk of deaths among the ethnic minority subjects was 1.39 times (95%CI: 1.21-1.60) higher than that of the Hans. The risk of death appeared to be 2.44 times higher (95%CI: 1.07-5.56) in the over-50-year of age group than in the <20 year-old group, when HIV/AIDS was diagnosed for the first time. The risk of death in CD₄ ≥500/μl group in the first time was 0.27 times (95%CI: 0.22-0.32) more than CD₄ <200/μl group in the firs time. The risk of death in cases who were treated with ART or MMT was 2.83 times (95%CI: 2.45-3.26) and 1.35 times (95%CI: 1.15-1.59) higher than those who did not receive any treatment, respectively. Conclusion Higher risks on death seemed to be related to the following factors: being male, older age at the time of diagnosis, lower CD₄ at diagnosis, not on ART or MMT among the IDUs with HIV/AIDS in Guizhou province, between 1996-2015.

Objective: To compare the value of two 3D imaging reconstruction methods for left atria and pulmonary vein on guiding the catheter ablation for atrial fibrillation (AF). Methods: From January 2014 to January 2017, a total of 100 drug refractory paroxysmal AF patients were divided into left atria direct angiography group (n=50), and indirect angiography group (n=50). 3D CARTO system was applied for mapping and guiding the ablation procedure. Patients assigned to direct angiography group were treated as follows: intraoperative puncture of atrial septum, inject contrast agent directly into the left atrium, conduct left atrial and pulmonary venous rotation angiography, reconstruct three-dimensional image, integrate the image into real-time X-ray system to facilitate circumferential pulmonary vein isolation. Patients assigned into the indirect angiography group were treated as follows: inject contrast agent through the right ventricle, conduct delayed rotation angiography of the left atria and pulmonary vein to guide circumferential pulmonary vein fixation and ablation. The left atrial and pulmonary venous image acquisition, the operation and X-ray exposure time, the success rate and the incidence of complication of the two groups were compared. The patients were followed up for 3-6 months. Results: General clinical characteristics of the two groups were similar(all P>0.05). Ablation was successful in all 100 patients. The operation time[(112.0±21.4)min vs. (134.0±24.3)min]and X-ray exposure time((10.7±4.7)min vs. (15.8±5.2)min)were significantly lower in direct angiography group than in indirect angiography group (both P<0.01). There was no significant difference between the two groups in the immediate (86%(43/50) vs. 82%(41/50), P=0.59) and short-term (76%(38/50) vs. 72%(36/50), P=0.65) success rate and complication rate (1 aneurysm in the direct angiography group, 1 pericardial tamponade in the indirect angiography group). In-hospital mortality was zero percent. Conclusion It is safe and effective method to guide the radiofrequency catheter ablation of paroxysmal atrial fibrillation by reconstruction 3D image of left atrium and pulmonary vein. Compared with indirect angiography group, direct angiography group can improve the imaging quality of left atrium and pulmonary vein, decrease the X-ray exposure time of the ablation procedure.

Objective To analysis the relationship between of waist-to-height ratio(WHtR) and the non-alcoholic fatty liver disease(NAFLD).Methods A total of 7 896 were selected as observed subjects from the Kailuan Group in 2011-2012 health physical examination.A questionnaire survey,blood biochemical and abdominal ultrasound examination were finished by trained medical staff.According to previous study recommended cut points the observed subjects was divided into two groups:abdominnal obesity group(WHtR≥0.5,n=3 185) and non-abdominnal obesity group(WHtR<0.5,n=479).According to the WHtR and its quartile,the observed subjects was divided into four groups(first(WHtR<0.47),second(0.47≤WHtR<0.51),third(0.51≤WHtR<0.55) and forth(WHtR≥0.55) quartile groups).NAFLD detection rate of the four groups were Compared.Multiple Logistic regression analysis was used to analyze the influencing factors of the NAFLD.Results (1)The detection rate of NAFLD in abdominnal obesity group was higher than that in non-obesity group(62.7% vs.21.5%,P<0.01).Along with increasing WHtR level in the 4 quartile groups,the incidence of NAFLD was progressively increased,being 12.6 %,38.1%,57.5% and 72.5% respectively in the total population.After stratified by gender,15.1%,40.6%,59.6% and 75.0% in male,7.8%,31.5%,48.3% and 63.8% in female.In the same WHtR group,the NAFLD detection rate of male was higher than female,the differences were statistically significant(P<0.01).(2)Multiple logistic regression analysis showed that compared with the first quartile group,the second,third and forth quartile groups had increased risk of NAFLD after adjusting age,gender and other risk factors,the OR value being 3.19,5.93 and 9.81 in the total population.After adjusting above factors,the OR value being 3.12,6.02 and 10.45 in male,3.32,5.37 and 7.57 in female,respectively.Conclusion The incidence of NAFLD is increased along with the increasing the WHtR.

Objective To investigate the effects of waist-to-hip ratio (WHR) on the formation of carotid plaque in the middle-aged and elderly people.Methods A total of five thousand and ninety-nine participants who have taken physical examination in Tangshan Kailuan Company from June 2010 to October 2011(above 40 years old,no previous history of ischemic stroke,transient ischemic attack,myocardial infarction) were enrolled in this study.Questionnaire survey,blood biochemical and carotid artery ultrasound examination were used to examine the subjects.According to WHR,quartile division was used to divide the subjects into four groups.The detection rates of carotid plaque among the 4 groups were compared.Multivariate logistic regression analysis was used to analyze the factors effecting carotid artery plaques.Results (1) The detection rate of carotid artery plaque increased with the increase of WHR,the rates of the first,second,third and fourth group were 20.7% (571/2 753),21.9% (604/2 753),27.5% (758/2 753) and 29.8% (820/2 753) respectively.The difference was statistically significant(P=0.000).(2) Logistic regression model was used to analyze multiple factors affecting the detection rate of carotid plaque.After the correction of other factors,compared with the first group,the carotid artery plaque detection rate in the second,third,fourth group were all increased,the OR values were 1.23(95%CI:1.10~1.54),1.65(95%CI:1.52~2.13),1.67(95%CI:1.54~2.17),respectively.Conclusion The increased WHR in the middle-aged and elderly population may increase the risk of carotid plaque formation.

Osteoid osteoma was first reported in 1935 by Jaffe. It is a kind of benign bone disease with the limitation of well-defined lesions. It is rarely seen in the periorbital region. The only symptom of the patient was unilateral proptosis of right. The result of MRI examination was cystic masses in the edge of the right orbit. The tumor was complete removed by the nasal endoscopic approach during the surgery. Pathology result was reported as osteoid osteoma. There was no significant complications of diplopia, visual acuity decreased, enophthalmos, cerebrospinal fluid leakage and others.
Endoscopy ; Exophthalmos ; Face ; Humans ; Magnetic Resonance Imaging ; Nasal Surgical Procedures ; Nose ; Osteoma, Osteoid ; surgery ; Skull Base ; pathology ; Skull Base Neoplasms ; surgery

This case reports of nasopharyngeal embryonal rhabdomyosarcoma mainly for a stuffy nose, runny nose with blood, and without typical clinical manifestations. Electronic laryngoscopy tip: nasopharyngeal neoplasm. MRI tip: nasopharyngeal carcinoma. By pathological and immunohistochemical examinations, it finally was diagnosed with nasopharyngeal embryonal rhabdomyosarcoma.
Carcinoma ; Humans ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; diagnosis ; Rhabdomyosarcoma, Embryonal ; diagnosis