Objective:To discuss the effect of the choice of brain functional MRI parameter on image quality. Methods:To select nine young volunteers for scanning brain functional MRI from February to December, 2012, and analyze the effect caused by parameters to the image quality. Results:The lower of the b value, the more level 1 image, the less level 3 image;the more of the number of diffusion sensitive gradient direction, the more level 1 image, the less level 3 image. The largest impact on image quality is the interlayer spacing, the number of diffusion sensitive gradient direction and the b value. Conclusion:The factors influencing the quality of brain functional MRI images including the interlayer spacing, the number of diffusion sensitive gradient direction and b value. In the parameter selection process, one should start from diagnostic purposes and weigh the pros and cons with overall consideration.

Objective To clarify the effects of HBV co-infection on liver function of patients with different types of hepatic echinococcosis.Methods We recruited 409 patients diagnosed with hepatic echinococcosis at three hospitals in western regions in China from 2014 to 2015.Venous blood was withdrawn to detect to liver function indications.ELISA was performed to detect HBsAg.We analyzed liver function in patients stratified by different types of hepatic echinococcosis with or without HBV infection.Results The hepatic echinococcosis patients infected with HBV had more severe impairment in liver functions such as reduced albumin and increased transaminase.The patients with hepatic alveolar echinococcosis were more vulnerable to HBV infection compared with those with hepatic cystic echinococcosis (38.4％ vs.86.4％, P<0.05).In addition, liver injury was more severe in patients diagnosed with alveolar hepatic echinococcosis and HBV infection compared with those diagnosed with cystic hepatic echinococcosis and HBV infection (all P<0.05).Conclusion Hepatic alveolar echinococcosis patients co-infected with HBV have worse liver injury compared with those hepatic cystic with HBV. Therefore, they deserve special attention in clinical treatment.

Objective: To systematically evaluate the efficacy and safety of Yang Yin Sheng Ji pulvis (membranae) in the treatment of recurrent oral ulcers (ROU) . Methods: All clinical studies of Yang Yin Sheng Ji pulvis (membranae) for the treatment of ROU were searched from Cochrane Library (Issue 5, 2017), Pub Med, PMC, Medline, EMBASE, CNKI, CBM, VIP and WANFANG DATA.The quality of the included studies was evaluated referring to the Cochrane Reviewer's Handbook 5. 1. 0, Meta-analysis of the total effective rate was performed using Rev Man 5. 3. 5 software, ITC software was used to compare the efficacy of Yang Yin Sheng Ji pulvis and Yang Yin Sheng Ji membranae in Meta. Results: 11 studies including 1837 patients were included. The results of Meta-analysis showed that Yang Yin Sheng Ji pulvis (membranae) for the treatment of ROU is more effective than the roultine treatment (OR = 5. 22, 95％ CI:3. 93 ～ 6. 93, P ＜ 0. 000 01), subgroup analysis showed that Yang Yin Sheng Ji pulvis and Yang Yin Sheng Ji membrane are superior to the routine treatment (OR = 5. 08, 95％ CI: 3. 63 ～ 7. 10, P ＜ 0. 000 01 and OR = 6. 67 95％ CI: 3. 82 ～ 11. 66, P ＜ 0. 000 01), respectively. Indirect comparison results showed that the total efficiency of Yang Yin Sheng Ji membrane is higher than that of Yang Yin Sheng Ji Pulvis (P = 0. 009) . No adverse reaction of Yang Yin Sheng Ji pulvis (membrane) was reported. Conclusion: Yang Yin Sheng Ji pulvis (membranae) is more effective in the treatment of ROU than the routine treatment.

OBJECTIVE: To evaluate the effect of image guided navigation system (IGNS) in complex endoscopic endonasal surgery. METHOD: Three hundred and five patients were undergone endoscopic surgery using IGNS. The detailed information and data including the IGNS accuracy, the operation procedure time, the operator's satisfaction degree and self-confidence, and the perioperative complication were analysed and summarized to evaluate the effect of IGNS. RESULT: The operation procedures were successfully performed in all the 305 patients without perioperative complication. In 98.7% of the total operation IGNS provided an accurate anatomical localization less than 2 mm localization error (0.5-2.0 mm,mean 1.2 mm). The application of IGNS reinforced the operators self-confidence, increased the patients' safety with the almost same time as that of routine endoscopic surgery (ESS). CONCLUSION IGNS could elevate the effectivity and security of ESS, indicating it's a valuable tool in deal with complex endoscopic endonasal surgery.
Adolescent ; Adult ; Child ; Endoscopy ; methods ; Female ; Humans ; Male ; Middle Aged ; Nose ; surgery ; Software ; Surgery, Computer-Assisted ; Tomography, X-Ray Computed ; Young Adult

OBJECTIVE: To investigate the character of upper airway and to offer the reference for clinical treatment through observing the upper airway caliber and its corresponding pharyngeal wall of OSAHS patients by magnetic resonance imaging (MRI). METHOD: The upper airway of 33 obstructive sleep apnea hypopnea syndrome (OSAHS) patients diagnosed by PSG were analyzed and compared by MRI. The cross-sectional area of the upper airway and thickness of lateral parapharyngeal wall were calculated. The cross-sectional area of the upper airway and thickness of lateral and posterior pharyngeal wall were also measured in 20 nonsnoring age-matched normal subjects selected as the control group. RESULT: The cross-sectional areas of upper airway of OSAHS patients were smaller than that of the control. The Thickness of posterior pharyngeal wall and lateral pharyngeal wall of the retropalatal region, retroglossal region and epiglottal region were thicker in patients group than that of the control. The thickness and length of the palate in patients group were larger than that of the control. The cross-sectional areas of retropalatal region of OSAHS patients had negative correlation with apnea hypopnea index (AHI). There was also negative correlation between the retroglossal region cross-sectional area and the neck circumference. CONCLUSION Measurement of upper airway with MRI could observe the change of pharynx cross-sectional area and had reference value in guiding the clinical diagnosis and treatment.
Adult ; Case-Control Studies ; Humans ; Magnetic Resonance Imaging ; Middle Aged ; Palate ; pathology ; Palate, Soft ; pathology ; Pharynx ; pathology ; Respiratory System ; pathology ; Sleep Apnea, Obstructive ; pathology