Objective:To investigate the clinical application of the panorama imaging of digital radiography(DR). Methods:2～3 images of spine or long bone were collected with amorphous silicon flat-panel detector DR system,thereupon the panorama images including whole spine and both sides of lower limbs were obtained by post-processing of mosaic technique. Results:The panorama images can not only show the whole spine and lower limbs on a single film, but also be used for measuring the length and the angle. Conclusion:The panorama imaging from digital radiography based on mosaic technique can meet the demand of clinical application.

0.05);however,dual-energy subtraction imaging was superior to chest digital radiography in detection small nodular(diameter

Objective To compare the clinical effects of palliative drainage to pancreatic and periampullary carcinoma which could not be excised with the operation.Methotis A retrospective study was accomplished on the palliative drainage treatment of 68 patients with pancreatic and petiampullary carcinoma hospitalized from 1996 to 2003.Results The disease course was two days to eight months.A definite preoperative diagnosis was made for 64 cases.Among them.single test diagnosed 24 cases and multiple tests diagnosed 40 cases.56 patients suffered from jaundice before operation.34 patients were treated by Roux-Y choledochojejunostomy.Choledochoduodenostomy was performed in 16 patients,cholecystduodenostomy for biliary by pass Was performed in 8 patients and stented internal drainage of the biliary duct in the liver and duodenostomy was performed in 10 patients.After reducing jaundice,12 patients was performed surgical resection.The second operation was performed in 4 patients because of postoperative jaundice and in 3 patients because of pylofic obstruction.The pefioperative compllcations include 4 cases of jaundice pyloric,3 cases of obstruction,2 cases of postoperative bleeding and 5 cases of infection of incisional wound.The aver-age stay in hospital waa 13.3 days(8～22 days).Conclusion Multiple tests were helpful to make a definite preoper-ative diagnosis.The selection of palliative drainage method based on the condition of patients had good curative effect in clinic.Surgocal exploration and reducing jaundice could set win conditions for second operation.

Objective To compare patient radiation dose of two techniques of spine X-ray panoramic imaging under the same image quality.Methods An anthropomorphic phantom was used.The reasonable imaging parameters were found for spine panoramic radiography using Sonialvision safire17 Slot scan with HQ mode.And the panoramic films were obtained with different parameters using GE XR650 DR system.The panoramic images were scored by three experienced radiologists.The imaging parameters with the same score in groups were input into PCXMC 2.0 software to get effective dose(E) and organ dose.Results The reasonable imaging parameters of Slot scan were high quality(HQ) mode, SID 150 cm, 100 kVp, and 2 mAs;and the corresponding parameters of XR650 were SID 200 cm, 100 kVp, and 3.2 mAs.The E of the Slot scan with HQ mode, XR650 with manual mode and XR650 with AEC mode was(0.118 7±0.001 4),(0.0847±0.0008), and (0.1580±0.001 5) mSvrespectively, while the E of XR650 with manual mode was lower than the others(F =3 007.293, P ＜0.05).The organ dose using XR650 DR with manual mode were lower than that using Slot scan with HQ mode in all samples except breasts(P ＜0.05);the organ dose using XR650 DR with AEC mode were higher than that using XR650 DR with manual mode and Slot scan with HQ mode for all samples except for thyroid, oesophagus and lungs (P ＜0.05).Conclusions The radiation doses of both spine X-ray panoramic imaging with manual mode are low, and low dose spine X-ray panoramic imaging can be achieved if reasonable parameters are used.

Objective To compare the differences of temperature results between mercury thermometer and infrared thermometer. Methods The temperature of three parts was recorded respectively by mercury thermometer in axilla and infrared thermometer in forehead and earlobe on the same patient, totally 98 patients were recorded in ICU. Results There was statistical difference of three parts' temperature in 98 cases. It could be assumed that axilla temperature ＞ earlobe temperature ＞ forehead temperature;There was no statistical difference of three parts' temperature in 17 cases with temperature 38.0～38.9 ℃ by mercury thermometer, but the difference had clinical significance. It could be assumed that axilla temperature ＞ earlobe temperature ＞ forehead temperature; There was statistical difference of three parts' temperature in 30 cases with temperature at 37.0～37.9 ℃ by mercury thermometer. It could be assumed that axilla temperature ＞ earlobe temperature ＞ forehead temperature. There was no statistical difference of three parts'temperature in 51 cases with temperature at 35.0～36.9 ℃ by mercury thermometer. Conclusions Temperature of the patients with normal axilla temperature could be monitored by infrared thermometer instead of mercury thermometer,but it is not applicable to the patients with fever.

ObjectiveTo observe the effect of mometasone furoate on serous eotaxin in children with allergic rhinitis.MethodsThe observation group included 30 cases who got allergic rhinitis and treated by mometasone furoate.The level of eotaxin before and after treatment was detected by ELISA,and was compared with normal children in control group.ResultsBefore treatment,the signs scores of observation group was (9.4 ± 2.3 ),and after treatment was(3.1 ± 1.8),the difference was statistically significant(t =2.148,P ＜0.05).The treatment effect contained 19 cases(63.3％ ) 9 cases(30.0％ ) effective and 2 cases(6.7％ ) ineffective.Before treatment,the level of eotaxin in observation group was remarkably higher than control group [ (221.41 ± 137.96 ) ng/L vs ( 128.71 ± 60.73 ) ng/L,t =- 2.721,P ＜ 0.05 ],after treatment,symptom and sign was mitigated and eotaxin level was remarkably lower than before treatment[ ( 115.50 ± 52.71 ) ng/L vs (221.41 ± 137.96 ) ng/L,t =- 3.661,P ＜ 0.05 ].There was no serious adverse reaction in observation group.ConclusionTreated allergic rhinitis by corticosteroids could inhibit the allergic inflammation and down-regulate the eotaxin level.

Objective To evaluate the image deformation and measurement error of rotational DSA by model experiment. Methods Five steel balls (diameter: 20 mm) were placed in a horizontal space of 30 mm, the middle of which was as the isocenter for rotational DSA acquisition. Another 5 steel balls (diameter: 10 mm) were placed in a vertical space of 30 mm with the same alignment for rotational DSA acquisition. The screen was divided into five regions and the morphological changes of the ball image were observed at each rotation angle. The experimental images of the left anterior oblique ball images at 20°, 40°and 60° among each two groups were selected and measured by automatic isocenter calibration and sphere calibration respectively, and compared with the actual diameters of balls to calculate the image magnification. Results Except the center one, other balls were of deformation at different rotation angles due to the distance to the detector leading to enlargement and reduction. With automatic isocenter calibration, only the diameter of the center ball corresponded with the actual one, the distance away from the center or the rotation angle was inversely proportional to measurement error (maximum magnification 12.42%).With sphere calibration, the measurement results in various regions at different rotation angle were basically the same, with smaller measurement error (maximum magnification 3.41%). Conclusion Placing the organ of interest in the center area can reduce image distortion in rotational DSA imaging. Selecting reasonable measuring technology according to the lesion location is helpful to control measurement errors.

Objective To investigate the image quality difference of the virtual monochromatic spectral(VMS) images synthesized from fast kilovoltage switching and dual-source dual-energy CT for a given radiation dose. Methods A plurality of disposable syringes containing 15 mg/ml iodine contrast agent and saline were placed on the surface of the male anthropomorphic phantom consisting ofhead neck and torso, GE HD750 gemstone spectral imaging and Siemens Somatom Definition Flash dual energy CT protocols were performed on the phantom for a same dose(volume CT dose index 6.52 mGy), and VMS images (40, 60, 70, 80, 100, 120, 140 keV) were reconstructed and obtained(VMSkV switching and VMSdual-source image), respectively. The objective image noise, iodine signal noise ratio(SNR), iodine contrast noise ratio (CNR) and CT values were measured. The results were analyzed using the paired t test and ANOVA. Results All VMS iodine CT values were gradually decreased with the increasing of keV , and iodine CT values on VMSdual-source images were greater than on VMSkV switching images(P<0.05), VMSkV switching iodine CT values in descending order from the head , chest, abdomen at less than 100 keV,while most VMSdual-source iodine CT values were highest on chest(P<0.05). VMSdual-source and VMSkV switching image noise were highest at 40 keV and successively raised from the head, chest , abdomen. VMSkV switching image noise gradually decreased with the increase of keV in the range of 40 to 70 keV , gradually increased up to the trough after 70 keV from 80 keV gradually decreased, while VMSdual-source image noise was lowest at 70 keV or 80 keV , and then with the keV increased gradually increased. Image noise on VMSkV switching images in the range of 40 to 100 keV were higher than that on VMSdual-source images and lower in the range of 100 to 140 keV at most part(P<0.05). VMSdual-source and VMSkV switching iodine SNR were highest at 40 keV or 60 keV,SNR on VMSdual-source images are greater than on VMSkV switching images except 40 keV images on head and abdomen(P<0.05) . VMSdual-source and VMSkV switching iodine CNR were highest at 60 keV,CNR on VMSdual-source images are greater than on VMSkV switching images except 40 keV images on head 100 keV and 120 keV on abdomen(P<0.05).SNR and CNR decreased from the head, chest, abdomen (P<0.05). Conclusion VMS images synthesized from fast kilovoltage switching and dual-source dual-energy CT have different image quality performance at most keV and body parts, but VMS imaging at approximately 70 keV yielded lower image noise, and at approximately 60 keV yielded highest SNR and CNR.

Objective In response to the requirements of the new nation health care reform for the first diagnosis sinking .To in‐vestigate hospital as the center ,radiation surrounding ,we build the telemedicine system .Methods We analyzed the requirement ,de‐sign the architecture of the system through the way of TOGAF .Results The telemedicine system including telemedicine ,remote diagnosis and distance education was built .Conclusion The design ,establishment and application of the telemedicine system has an important influence and meaning .

Objective To explore ICSI treatment process in the different proportion of oocytes maturation and dosage of gonadotropin affecting embryo quality and clinical outcome. Methods From Jan. to Dec. 2015,we retrospectively analyzed the patients from the center line of ICSI cycle ,divided them into three groups according to the maturity of oocytes. The 3 groups were due to maturity rate of oocytes in 50% in group A(n = 19),50% 0.05). Group A had the best egg rate,high quality embryo rate,clinical pregnancy rate than the other two groups (P < 0.05). In pregnancy and non-pregnancy groups ,the dosage of gonadotropin in the non-pregnancy group was obviously higher than that in the pregnancy group in oocyte maturation in the same proportion interval(P<0.05). Conclusion In ICSI treatment process,the high dose of gonadotropin and rising rates of oocytes maturation are not conducive to the development potential of the egg and clinical outcome,so the dose of gonadotropin and oocyte maturation ratio should be controlled in a certain range to collect and protect the best dominant egg which matches to the state of the patient.