OBJECTlVE To investigate the myocardiaI toxicity of doxorubicin on the myocardium of rabbits and mechanism. METHODS Doxorubicin 2 mg·kg-1 was injected once a week for eight weeks. After discontinuation of doxorubicin,observation was performed for another 8 weeks. Every weekend, uItrasound examination,cardiac catheterization,angiotensinⅡ(AngⅡ)Western bIotting and pathoIogi-caI examination were performed to anaIyze eject fraction( EF),maximaI rate of rise of Ieft ventricuIar pressure(+dp/ dtmax ),AngⅡexpression IeveI,apoptosis index(AI)and the structure of the myocardium. RESULTS At the 7th injection,EF decreased( P ﹤0.05),but reached the bottom vaIue at the 8th injection. At the 3rd injection,Ieft ventricuIar +dp/ dtmax decreased( P ﹤0.05)and reached the bottom vaIue one week after withdrawaI. After that,it increased and reached a high vaIue six weeks after withd-rowaI. But it was stiII Iower than before administration. At the 2nd injection,AngⅡ expression increased (P﹤0.05). At 1 week after withdrawaI,it reached the top vaIue,but than decreased and reached a Iow vaIue six weeks after withdrowaI,but was stiII higher than before administration. At the 1st injection,AI increased( P ﹤ 0.05). At 1 week after withdrawaI,it reached the top vaIue,but then decreased and reached a Iow vaIue 5 weeks after withdrawaI. But it was stiII higher than before administration. CONCLUSlON Doxorubicin cardiac toxicity can induce an eIevated IeveI of myocardiaI AngⅡ,possibIy associated with increased aIdosterone and myocardiaI tension. Increased Ang Ⅱ may induce further myocardiaI structuraI damage and ventricuIar remodeIing through the ROS and caIcium imbaIance.

Objective To compare the value of contrast-enhanced ultrasound (CEUS) and conventional ultrasound (CUS) in the localization and definition of different types of uterine myomas.Methods With real-time CEUS technique, 56 patients with uterine myomas proved by pathology were observed. The accuracy between CEUS and CUS in the localization and definition of different types of uterine myomas was retrospectively analyzed. Results The accordance rates of CEUS and CUS in the diagnosis of total uterine myomas, intramural myomas, submueous and subserous myomas were 94.6% (53/56) vs 73.2%(41/56),99.3%(31/32) vs 78.1%(25/32) and 91.6%(22/24) vs 66.7%(16/24),respectively,and in the definition of number and margin of myomas were 92.8 % (104/112) vs 80.30% (90/112) and 91.9 (103/112) vs 78.6 % (88/112). The accordance rates of CEUS and CUS in the diagnosis of typical uterine myomas were 95.8% (23/24) and 87.5% (21/24),and in the diagnosis of atypical uterine myomas were 93.8%(30/32) and 62.5% (20/32),which were different in statistics (P<0.05). Conclusions CEUS is better than CUS in revealing the number and margin of different types of uterine myomas. The accordance rates of CEUS were higher than those of CUS in the diagnosis of different types of uterine myomas and atypical uterine myomas. CEUS may be a new technique in the localization and definition of uterine myomas.

OBJECTIVE:To provide reference for rational use of second class of psychotropic drugs in the clinic. METHODS:The second class of psychotropic drugs in outpatient department of our hospital during 2012-2015 were analyzed retrospectively in respects of the number of common drugs prescription,distribution of gender/age/disease diagnosis,DDDs and DUI,etc. RE-SULTS:During 2012-2015,second class of psychotropic drugs in outpatient department of our hospital accounted for 25.09%of to-tal prescription amout. The drugs with high use frequency were alprazolam,clonazepam,lorazepam and estazolam,accounting for 93.10% of total prescription amount of second class of psychotropic drugs. The proportion of male to female was 1∶1.50;the pa-tients aged 19-35 years old took up the biggest proportion,accounting for 34.62%. The proportion of schizophrenia prescription was the highest,accounting for 45.17%. DDDs of alprazolam was the highest,being 742 141.67;its DUI was 1.075;DUI of oth-er drugs was lower than 1.0. CONCLUSIONS:The use of second class of psychotropic drugs is basically reasonable in our hospi-tal. Guiding principles of Clinical Application of Psychotropic Drugs should be implemented strictly and continously to avoid abuse of second class of psychotropic drugs.

Objective To analyze the double contrast-enhanced ultrasonography (DCUS) features of periamupullary carcinoma for enhancing the ultrasound diagnostic value of the disease.Methods The DCUS and clinical data of 40 patients with periampullary carcinoma confirmed by histopathology were reviewed.Results (1) The displaying rate of the lesions and the judgment of lesion location was statistically higher on DCUS than that of ordinary ultrasound (P ＜ 0.05).(2) DCUS features of periampullary carcinoma:the size of most lesions was less than 30 mm except for 1 case in which no lesion was found; In 100％ (39/39) of the lesions,the morphology did not change with duodenum movement ; In 64.1％ (25/39) of lesions hyperenhancement or isoenhancement was displayed in the arterial phase,with low enhancement in the venous phase; In 87.2％ (34/39) of lesions homogeneous enhancement was displayed; In 95％ (38/40) the bile ducts were moderately or severely dilated.The lesion locations and whether the lesions projected into the duodenal cavity or not were statistically different between the three different types of periampullary carcinoma (P ＜ 0.05).The lesions projected into the duodenal cavity of duodenum were more commonly seen in papillary carcinoma and ampullary carcinoma than distal common bile duct carcinoma.The lesion size,whether the lesion morphology changed or not with duodenum movement,enhancement level,enhancement homogeneity,the degree of bile duct dilatation,whether there was pancreatic duct dilatation or not were not statistically different between the three different types of periampullay carcinoma (P ＞ 0.05).Conclusions DCUS is an effective way to show periampullay carcinoma,and is helpful to diagnose periampullary carcinoma and distinguish the three different types of periampullary carcinoma.

Objective To investigate the electrocardiographic(ECG) characteristics and assess the safety of radiofrequency catheter ablation (RFCA) of ventricular tachyeardia (VT), and frequent ventricular premature con- tractious(VPCs) originating from left ventricular outflow tract(LVOT). Methods Twelve-lead ECG analysis and RFCA were performed in 9 patient with VT or VPCs originating from LVOT. Results The sites to be successfully ablated were in left valsalva sinus in 6 patients,and subaortic valve in 3 patient. ECG revealed tall R wave in leads Ⅱ, Ⅲ ,aVF, V5 and V6. QS morphology in both leads aVR and aVL,QS morphology in lead Ⅰ in most cases. R wave in lead Ⅰ was relative tall, the R/S wave amplitude in lead V1 was over 0.62 ,and precordia R wave transition was irregular. All 9 patients were successfully ablated. No death or recurrenced case during follow-up. Conclusion Ventricular taehycardia and frequent ventricular premature rcontractions originating from left ventricutar outflow tract could be known by some specific ECG characteristics and could be radically treated safely by RFCA.

Objective To evaluate the charateristics of biliary stricture after orthotopic liver transplantation(OLT) by ultrasound. Methods Diametes,thickness,characteristic echo of bile were observed by ultrasound in 41 patients with biliary stricture after OLT,and the results were compared with those of 46 patients without biliary complication after OLT.Results The diameter of intrahepatic bile,thickness of bile,incidence of intrahepatic bile dilation or hyperechogenicity in biliary stricture patiens were higher than those in patients without biliary complication,there were significant differences between two groups(P＜0.05).Conclusions The series of ultrasonographic character such as bile dilation,thickeness or hyperechogenicity of biliary wall,thin of bile duct are available to diagnose biliary stricture.

Objective To evaluate the clinical value of three-dimensional contrast-enhanced ultrasonography(3D-CEUS) of hepatic arteries in liver transplant candidates.Methods Twenty-six liver transplantation donors and recipients were examined using two-dimensional contrast-enhanced ultrasound (2D-CEUS) and 3D-CEUS.The 3D image's qualities, reconstruction successful rates, and the diagnostic level of hepatic artery complications were estimated. Results Twenty-one hepatic arteries were reconstructed successfully (80.8%).The 3D images showed artery trees continuous, spatial relationship definite, fine and circuitous branches distinct, and the segmental hepatic arteries' origin could be recognized.In 4 of 5 hepatic artery complications,both 2D-CEUS and 3D-CEUS made the correct diagnoses.However,2D-CEUS made a false positive diagnosis and 3D-CEUS retrieved it.Conclusions The 3D-CEUS images of the hepatic arteries are direct and distinct.In evaluating hepatic artery complications, when artery spatial relationship is complicated, the 3D-CEUS could provide more information, and confirm or correct some diagnosis of 2D-CEUS.

Objective To assess the difference between two-dimensional contrast-enhanced ultrasonography ( 2D-CEUS ) and three-dimensional contrast-enhanced ultrasonography ( 3D-CEUS ) in evaluating hepatic arteries in the liver transplantation. Methods Both 2D-CEUS and 3D-CEUS were used to examine 26 liver transplantation donors and recipients. Fifteen patients who were confirmed by CTA or DSA or MRA were analyzed. The image' s quality and diagnostic levels of 2D-CEUS and 3D-CEUS were compared, and the diagnostic information about anatomic features of hepatic arteries provided by the two methods was evaluated. Results 1) The image' s quality of 2D-CEUS and 3D-CEUS were 3. 62 ± 0. 41, 2. 52 ± 0. 93, respectively. The difference between them was statistically significant ( P <0. 05). 2)When evaluating anatomic features ,2D-CEUS and 3D-CEUS had no significant difference in common hepatic artery (CHA) and proper hepatic artery (PHA). But 3D-CEUS was prior to 2D-CEUS in left hepatic artery (LHA) ,right hepatic artery(RHA) and segmental hepatic artery(SHA) ( P <0. 05). 3)Five hepatic artery complications were discovered by CTA or DSA or MRA in 15 patients. In 4 patients (80%) ,both 2D-CEUS and 3D-CEUS made the affirmative diagnoses in accordance with the results. However, 2D-CEUS made a false positive diagnosis and 3D-CEUS corrected it. Conclusions The 3D-CEUS could provide more diagnostic information,could confirm or correct some diagnosis of 2D-CEUS,but,its image's quality is not as good as 2D-CEUS. Therefore,combining the 3D-CEUS with 2D-CEUS has practical clinical value in liver transplantation.

Objective To assess the feasibility and accuracy of the transvaginal three-dimensional hysterosalpingo-contrast sonography(3D HyCoSy) on the fallopian tube patency. Methods 3D HyCoSy was performed in twenty-two cases with infertility. Image quality of 3D HyCoSy was evaluated. The estimate of the fallopian tube patency in 3D HyCoSy were compared with those of hysterosalpinography(HSG) in one week. Results The mean score of image quality of 3D HyCoSy in twenty-two cases was 2. 8 + 0. 5. The accuracy of the unobstructed and obstructed fallopian tube were 88.9% (24/27) and 94.1% (16/17) respectively, and the total accuracy was 90. 9% (40/44) , which was equal to the results of HSG (P = 0. 000,k = 0. 812). No adverse reactions of SonoVue occurred in the cases. Conclusions Transvaginal 3D HyCoSy which is a new imaging technique can safely and effectively display the morphological character of fallopian tube and assess the patency.

Objective To design and construct a hepatocellular carcinoma(HCC) phantom,and assess the accuracy of three dimensional ultrasound (3DUS)-CT image fusion in evaluating ablative margin (AM).Methods The phantom was constructed by carrageenan gel and additives.A sphere-shaped HCC model surrounded by a 5 mm layer of AM model was embedded into a cylindrical-shaped ground substance model to form the phantom.After radiofrequency ablation (RFA),HCC model in the phantom was ablated into ablative lesion model.The ultrasound and CT image,macroscopic appearance and stability of the phantom were observed.Twenty-four phantoms were made and ablated into different ablative lesion models in which AM was achieved or not achieved.Outline the HCC and 5mm AM in the 3DCT image and fuse 3DCT image with the 3DUS image of the ablative lesion model to see whether the ablative area could cover the AM,as well as in which quadrant complete ablation of the AM had not been achieved and the maximal thickness of the unachieved AM.The result of the 3DUS-CT image fusion was compared with gross specimen.Results The ultrasound and CT image,macroscopic appearance and stability of the phantom met the demand of this study.The sensitivity,specificity and accuracy of 3DUS-CT image fusion were 93.8％,85.7％ and 91.3％respectively.The quadrant in which complete ablation of AM was not achieved matched with gross specimen.The maximal thickness of the unachieved AM measured by 3DUS-CT image fusion and gross specimen were (3.5 ± 2.0) mm and (3.2 ± 2.0) mm respectively,and no statistic difference was found between the two results.Conclusions The phantom made of carrageenan gel and additives was suitable for the evaluation of AM.3DUS-CT image fusion evaluation of AM was accurate.