Objective To optimize the temporal bone scanning parameters, upgrade the picture quality, shorten the scanner time, and decrease the radiographic exposure during the scanning. Methods The scanning was performed on 20 volunteers using 16 spiral CT in the same position and range with optimizer parameters and general parameters respectively, and then the volume data were collected. Results Through comparision and analysis of the images of the 20 volunteers, 17 of them using the optimizer parameters were better than those using general ones, 2 of them showed no obvious difference, and 1 was not as good as the general one. Conclusions Through the experiment and the statistics of 1000 cases using optimizer parameters, the picture quality using optimizer parameters is better, the scanner time is 1/7 of the general scanning, and the radiographic exposure is decreased. Optimizer parameters are better than the general ones and worth popularizing.

Objective To design two-point two-line vein pricking for avoiding pain for patients and blood osmosis out of the vein caused by the high-pressure and fast-speed of the current high-pressure injector.Methods 19G butterfly-wing vein transfusion needle in the length of 19mm was used.The first point was needled with the needle tip under the skin and the first needling line was above and parallel the blood vessel in the length of 10-12mm.The second point was needled,with the second needle tip and needle line in the blood vessel,and the length of needling is 7-9mm.Results 100 persons were subjected.All the contrast medium and the physiologic saline were injected in vein in 98 persons,among which 2 had little hard tubercle in injecting area.Conclusion The two-point two-line vein pricking is safe for high pressure injector injecting in vein,and can prevent blood osmosis out of the vein.

Acupuncture Therapy ; Adult ; Aged ; Female ; Gastroesophageal Reflux ; therapy ; Humans ; Male ; Middle Aged ; Treatment Outcome

Objective To probe the advantages and characteristics of imaging on dual-energy CT boneless and digital sub- traction brain angiography through comparative analysis. Methods Siemens 64-slice dual-source spiral CT and double high pressure syringe; The 200 patients were randomly divided into dual-energy group(n=100) and DSACT group(n=100); Every patient was injected 50 ml contrast medium and 50ml normal saline, injection rate was 4ml/s. Results The groups of cere- bra-vascular imaging without interference, and completely boneless; but experimental group has more boneless defects and vascular surface definition less. The cerebral arteries were interfered by the venous shadow in dual-energy group, and the dual-energy group received low-dose radiation. Conclusion The DSACT imaging quality is superior to dual-energy CT boneless imaging. The radiation dose of the dual -energy CT is lower than DSACT.

Objective The filum terminale(FT)plays an important role in the pathophysiology of tethered cord syndrome(TCS).The study on morphology and structure of fetus FF can provide reference standard for diagnosis of TCS.Methods Ten fresh human aborted fetuses had their fila measured and removed.Transversal and longitudi nal sections of the middle,and distal thirds of FF were submitted to light microscopy analysis with four different techniques.Results The bulk of the Frr is composed of 1～5μm thick spring like longitudinal bundles of colla gen separated by 5～30μm layer intervals and 1～5μm intervals in the layer,although a small quantity of eapillar ies and other elements may be present.Collagen bundles can also be found between layers and bundles.Abundant longitudinally oriented elastic fibers ale found inside or between collagen bundles.Conclusion A complex tridi mensional structure composed by ordered arrangement of spring like fibers and small quantity of capillaries should e licit considerable elastic properties to the FI".Tts alternation of structure and element maybe involved in TCS closely.

OBJECTIVE:To shorten the time of admixture of temporary medical order in PIVAS,and to guarantee the timely treatment of patients. METHODS:Through the definition,measurement,analysis,improvement and control ie. five steps of six sigma method,the consumed time of each link of temporary medical order admixture in PIVAS was analyzed in our hospital during Mar. 9th-22nd in 2015 (before improvement);key points were found out,and relevant measures were formulated and improved;the consumed time of each link of temporary medical order admixture in PIVAS was collected again during Jul. 27th-Aug. 9th in 2015 in order to evaluate improvement effects. RESULTS:It was quality key point that total length of temporary medical order ad-mixture which included injection sequence,label checking,preparation,package rechecking,drug distribution and so on,was con-trolled within 120 min;through formulating and implementing various measures as improving information system,adjusting prepa-ration sequence and shunting staff posts flexibly,the total time of first 3 batches of temporary order admixture were 120,98 and 77 min after improvement,shortening by about 30,50 and 55 min respectively,compared with before improvement (P<0.05). CONCLUSIONS:The six sigma method has shortened the time of temporary order medical admixture in our hospital. The formulat-ed measures are effective and feasible.

Objective To investigate the effect of rocuronium on spectral entropy during induction of general anesthesia in patients of Uygur nstionality. Methods Forty ASA Ⅰ or Ⅱ patients (Uygur nationality) of both sexes, aged 20-50 yr, weighing 45-70 kg, undergoing elective surgery under general anesthesia, were divided into 2 groups ( n = 20 each): normal saline (NS) group and rocuronium group (group R). Anesthesia was induced with target-controlled infusion of propofol. The initial target plasma concentration wan net at 2 μg/ml. The concentration wan then increased by 0.5 μg/ml every 4 min until response entropy (RE) was decreased to 45 and maintained for 4 min. When the plasma concentration was equal to the effect-site concentration, iv rocuronium 0.6 mg/kg was injected in group R, while group NS received the equal volume of NS instead. Fentanyl 3 μg/kg was injected intravenously at 3 min after recuronium administration. The patients were tracheal intubated and mechanically ventilated. State entropy (SE) and RE were recorded immediately before induction (baseline, To), before rocuronium administration (T1), 2 main after rocuronium administration (T2) and at 0, 1, 2 and 3 min after intubation (T3-6). The difference between RE and SE wan calculated. Results The RE value at T3 and T4 and the difference between RE and SE at T2.5 were significantly lower in group R than in group NS ( P ＜ 0.05). Conclusion Rocuronium can decrease the RE value and degree of increase in the difference between RE and SE during induction of general anesthesia in patients of Uygur nationality, which may affect the accuracy of spectral entropy in monitoring the depth of anesthesia.

Objective To investigate the feasibility of spin-echo echo-planar imaging(SE-EPI) of magnetic resonance elastography (MRE) for the diagnosis of pancreatic mass and to evaluate the difference of stiffness value in different pancreatic mass. Methods In a retrospective study, MRE was performed in 20 healthy volunteer (control group) and 62 patients with surgery-proved pancreatic masses, including pancreatic cystadenoma in 5 cases and solid masses of pancreas in 57 cases (39 with malignant mass and 18 with benign mass) using 3.0 T MRE. The differences of stiffness between two groups were evaluated using non-parametric Mann-Whitney U test. ROC was used to assess the diagnostic ability of elastogram for the detection of pancreatic masses, and to evaluate MRE-determined stiffness for the differentiation of masses from healthy pancreas, and malignancy from benign solid masses. Results The total detection rate of elastogram was 91.9%(57/62),with false positive rate of 5.0%(1/20) and false negative rate of 8.1%(5/62). The median stiffness value in the control group vs patient group were 1.18 kPa (interquantile range:1.15 to 1.30) kPa and 2.43 kPa (interquantile range:1.94 to 3.64 kPa) respectively, with statistically significant differences (Z=-5.967,P<0.01). The sensitivity and specificity of stiffness (≥1.36 kPa) to differentiate pancreatic mass from healthy pancreas was 93.6%and 100.0%, respectively, and to differentiate benign and malignant solid masses (≥2.17 kPa) was 82.1%and 83.3%, respectively. Conclusion MRE is a promising method in detecting and distinguishing different pancreatic masses.

A collection of neurons in the upper lumbar spinal cord (lumbar segments 3 and 4) of male rats project to the lower lumbar spinal cord (lumbar segments 5 and 6) and release a gastrin-releasing peptide (GRP) to the somatic and autonomic regions, which are known to regulate male sexual reflexes. The GRP plays some special functions when bound to the specific GRP receptor (GRPR). The spinal GRP system is regulated by androgens. Accumulating evidence shows that GRP plays an important role in rat penile erection and ejaculation, and pharmacological stimulation of GRPRs with a specific agonist can restore penile reflexes and ejaculation in castrated male rats. Therefore, the GRP system appears to be a potential therapeutic target for the treatment of erectile dysfunction or ejaculatory dysfunction. The present paper briefly reviews the recent studies on the role of the spinal GRP system in regulating the sexual function of males.
Androgens ; metabolism ; Animals ; Ejaculation ; physiology ; Gastrin-Releasing Peptide ; metabolism ; physiology ; Male ; Penile Erection ; physiology ; Rats ; Spinal Cord ; metabolism

Endometrial Neoplasms ; pathology ; Female ; Humans ; Pregnancy ; Trophoblastic Neoplasms ; pathology ; Trophoblasts ; pathology