中华超声影像学杂志最新文献

{"title":"Study on the comparison of diagnostic of K-TIRADS, ACR-TIRADS and ATA in CAD and diagnosis of thyroid nodules by computer-assisted ultrasonography","authors":"Xiaoyu Li, Jinging Liu, Li-ping Liu, Wenwen Fan, Y. Xin, Yanping Shi","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.012","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.012","url":null,"abstract":"Objective \u0000To explore the diagnostic efficiency of K-TIRADS, ACR-TIRADS and ATA risk stratification in computer-aided detection and diagnosis(CAD) software and the application value of CAD-assisted ultrasound physicians in diagnosing thyroid nodules. \u0000 \u0000 \u0000Methods \u0000One hundred and ninety-two thyroid nodules with postoperative pathological results were retrospectively analyzed. All of them were graded by K-TIRADS, ACR-TIRADS and ATA with CAD software, and the best guide was recognized by calculating the area under the ROC curve, sensitivity and specificity. Then, based on the best guidelines for the classification criteria, the double-blind method was used to compare the ability of the same ultrasonologist to diagnose thyroid nodules before and after CAD. \u0000 \u0000 \u0000Results \u0000The AUC value of K-TIRADS, ACR-TIRADS, ATA was 0.88, 0.77, 0.62 respectively in the CAD software. The difference between the two groups was statistically significant (P<0.05). There was no significant difference in the specificity between K-TIRADS and ATA(P=0.176), which were both higher than ACR-TIRADS with statistically significant differences (P<0.05). The AUC value of the diagnosis among CAD itself, ultrasound physicians and physicians combined CAD was 0.88, 0.80, 0.93, respectively. The difference between the two groups was statistically significant (P<0.05). There was no significant difference in the sensitivity between CAD itself and physicians combined CAD(P=0.163), which were both higher than ultrasound physicians with statistical significant differences(P<0.05). Among ultrasound physicians, CAD itself and physicians combined CAD, the difference in specificity between the two groups was statistically significant(P<0.05). \u0000 \u0000 \u0000Conclusions \u0000All the three risk stratification systems of thyroid ultrasound in CAD software have good diagnostic values, among which K-TIRADS has the largest AUC. The CAD software can assist ultrasound physicians to improve the thyroid nodule diagnostic performance, and has a good clinical application prospect. \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Computer-aided dection and diagnosis; Thyroid nodules; K-TIRADS; ACR-TIRADS; ATA","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46082717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cerebroplacental blood flow redistribution in monochorionic-diamniotic twin pregnancies with selective fetal growth restriction","authors":"Lan Zhang, Hongli Liu, Jie Gan, Xing Wang, Shuai Huang, Junnan Li, H. Qi, Li Wen","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.009","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.009","url":null,"abstract":"Objective \u0000To analyze the cerebroplacental blood flow distribution characteristics in monochorionic-diamniotic (MCDA) twin pregnancies with selective fetal growth restriction (sFGR), and investigate the relationship between co-twin cerebroplacental blood flow discordances and co-twin birth weight discordances (BWdisc). \u0000 \u0000 \u0000Methods \u0000The cerebroplacental blood flow distribution characteristics and their discordances were analyzed retrospectively in 52 MCDA twin pregnancies with normal growth (control group) and 52 with sFGR (case group), including the umbilical artery pulsatility index (UA-PI), middle cerebral artery peak systolic velocity (MCA-PSV), middle cerebral artery pulsatility index (MCA-PI), cerebroplacental ratio (CPR), and their discordances (UA-PIdisc, MCA-PSVdisc, MCA-PIdisc and CPRdisc). \u0000 \u0000 \u0000Results \u0000Compared to the control group, UA-PIdisc, MCA-PIdisc and CPRdisc increased significantly (all P<0.01). UA-PIdisc, MCA-PIdisc and CPRdisc were related positively to BWdisc as shown by correlation analyses (r=0.488, 0.414, 0.592; all P<0.001), and they had moderate predictive accuracy for sFGR with area under the curves of 0.743, 0.662 and 0.778, with sensitivity of 48.08%, 67.31% and 71.15%, and specificity of 92.31%, 59.62% and 78.85% (all P<0.01). Multivariate Logistic regression analyses showed that only CPRdisc were independently associated with sFGR (P<0.05). \u0000 \u0000 \u0000Conclusions \u0000More cerebroplacental blood flow discordances are observed in MCDA twin pregnancies with sFGR. Co-twin cerebroplacental blood flow discordance is related to BWdisc. \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Monochorionic-diamniotic twin; Selective growth restriction; Cerebroplacental ratio","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42035116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The feasibility of 3D printing aortic root model by three dimensional transesophageal echocardiography data: a preliminary study compared with CT","authors":"Wanwan Song, Yuan-ting Yang, Qing Zhou, Hong-ning Song, Bo Hu, Juan Guo, Jun Xia, Xinping Min, Zhoufeng Peng, R. Guo","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.003","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.003","url":null,"abstract":"Objective \u0000To preliminary explore the feasibility of three-dimensional transesophageal echocardiography (3D-TEE) as images data source for 3D printing model by comparing the 3D-TEE with CT of the aortic root Digital Imaging and Communications in Medicine(DICOM) data into 3D printing models respectively. \u0000 \u0000 \u0000Methods \u0000Fifteen patients who underwent surgical aortic valve replacement in the hospital were enrolled, and the aortic root 3D-TEE and CT DICOM data were obtained in perioperative. The images were imported into Mimics software to generate digital model standard tessellation language file, and to print the aortic root models by 3D printer. The structural morphology of both 3D-TEE and CT models were qualitatively evaluated respectively. The aortic annular area, perimeter, maximal diameter and minimal diameter of the original data, digital model, model and aortic valve replacement were quantitatively evaluated, and the consistency of each parameter value were analyzed. The mean diameter of 3D-TEE and CT model were calculated. The correlation of mean diameter with the number of replacement was analyzed. \u0000 \u0000 \u0000Results \u0000①Both 3D-TEE and CT images data were successfully printed into 3D models, and the positive rate of aortic valve structure were 93.3% (14/15) and 80.0% (12/15) respectively. ②The measured values of the aortic annular 3D-TEE and digital model were smaller than CT, CTdigital model and replacement (P 0.95, P<0.05). \u0000 \u0000 \u0000Conclusions \u00003D printing aortic root model based on 3D-TEE image data is of high feasibility. \u0000 \u0000 \u0000Key words: \u0000Echocardiography, three-dimensional, transesophageal; Aortic root; Valve; 3D printing","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44524618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The value of fetal echocardiography in the diagnosis of isolated coronary artery fistula","authors":"Shanshan Huang, Yong Guo, Ye Zhang, Lin Sun, X. Gu, Ying Zhao, Zhenzhou Li, Yihua He","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.007","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.007","url":null,"abstract":"Objective \u0000To investigate the ultrasonic features of fetal isolated coronary artery fistula (CAF). \u0000 \u0000 \u0000Methods \u0000A total of 13 cases of fetal isolated CAF from December 2011 to March 2018 were retrospectively analyzed. Data of echocardiography and follow-up were collected.All cases were divided into retrograde group and no retrograde group based on the presence of diastolic retrograde flow in aortic arch. The inner diameters of affected coronary arteries (CA) and aortic annulus (AO) were measured, and the CA to AO ratios (CA/AO) were then calculated.Correlations between CA, CA/AO and the presence of retrograde flow were analyzed. Adverse birth outcomes including abortion, enlarged cardiac cavity, pulmonary hypertension were recorded at follow-up. Correlation between diastolic retrograde flow in aortic arch and the rate of adverse birth outcomes was analyzed. \u0000 \u0000 \u0000Results \u0000①Thirteen cases of fetal CAF were characterized by the varying degrees of dilation of affected coronary arteries. Thirteen cases were presented with abnormal blood flow in the large arteries or cardiac cavities: biphasic continuous flow pattern in atrio-coronary fistula and biphasic bidirectional continuous flow pattern with a diastolic dominant flow in coronary artery to ventricle fistula. Seven cases were presented with retrograde holodiastolic flow in aortic arch. ②The CA/AO ratios of retrograde group was higher than in no retrograde group [(0.63±0.24)mm vs (0.39±0.09)mm, P=0.047], there was no significant difference of CA between the two groups [(3.00±1.25)mm vs (2.03±0.62)mm, P=0.115]. ③The rate of adverse birth outcomes in retrograde group was higher than in no retrograde group (80% vs 20%, χ2=4.80, P=0.028). \u0000 \u0000 \u0000Conclusions \u0000Fetal isolated CAF has distinct ultrasonic features. Abnormal CA/AO ratio and diastolic retrograde flow in aortic arch are significant ultrasonic features and has prognostic values. \u0000 \u0000 \u0000Key words: \u0000Echocardiography; Fetus; Coronary artery fistula; Retrograde flow in aortic arch","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47974693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prenatal ultrasound diagnosis of fetal microphthalmia","authors":"Lihong Wu, Hongning Xie, Li-juan Li, L. Du","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.010","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.010","url":null,"abstract":"Objective \u0000To analyze the ultrasonic features, associated malformations and combined genetic abnormalities of microphthalmia . \u0000 \u0000 \u0000Methods \u0000The characteristics of 15 cases of fetal microphthalmia were retrospectively analyzed. And the proportion of fetal microphthalmia associated malformations were further assessed according to the different organ system. \u0000 \u0000 \u0000Results \u0000All the orbital diameters of affected eyes of the 15 cases were less than the 5th centile of normal fetal orbital diameter corresponding to gestational age. In which, 26.67%(4/15) fetuses had additional ocular defects, and 66.67%(10/15) were diagnosis with extrocular defects, including 20.00%(3/15) with central nervous system defects, 13.33%(2/15) with orofacial defects, 26.67% (4/15) with cardiac defect, 13.33%(2/15) with limb defect, 33.33% (2/15) with urogenital defect and 40.00%(6/15) with abnormal ultrasonographic soft markers. And the proportion of fetal microphthalmia associated extrocular defects showed no significant difference(P=0.502). \u0000 \u0000 \u0000Conclusions \u0000Fetal microphthalmia is frequently associated with random and sporadic occurrence of extrocular defects \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Prenatal diagnosis; Microphthalmia; Associated malformations","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46389710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantification of left ventricular performance in different phenotypes of hypertrophic cardiomyopathy","authors":"N. Kang, Jing Wang, Liwen Liu, Hong Ai, Fan Yang, L. Zuo, Wenxia Li, M. Zhou, C. Ye, Zhiling Ma","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.001","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.001","url":null,"abstract":"Objective \u0000To evaluate the characteristics of left ventricular structure, function, myocardial mechanics, hemodynamics and synchrony in different phenotypes of hypertrophic cardiomyopathy (HCM) using state-of-the-art echocardiography. \u0000 \u0000 \u0000Methods \u0000A consecutive series of 85 adult HCM patients who were admitted to the Xi Jing HCM center from January 2016 to November 2017 were collected. According to the peak left ventricular outflow tract pressure gradient in exercise stress echocardiography, the patients were divided into three groups: patients with non-obstructive HCM (n=28), those with labile-obstructive HCM (n=27), and those with obstructive HCM (n=30). In addition, 16 normal family members of HCM patients were included as control group. Two-dimensional speckle tracking imaging, tissue Doppler imaging and exercise stress echocardiography were used to evaluate the left ventricular function in resting and exercise states. \u0000 \u0000 \u0000Results \u0000①As compared with the control group, left ventricular end-diastolic diameter decreased and left ventricular ejection fraction increased in all three HCM groups(all P 0.05). The obstructive HCM had the lowest mitral annular plane systolic excursion (MAPSE) and s′, and the longest systolic peaking time standard deviation(Ts-SD) and early diastolic peaking time standard deviation(Te-SD) (all P<0.05). The left ventricular diastolic function of obstructive HCM (e′, the E/e′ ratio and the left atrial volume index) was the worst, labile-obstruction and non-obstructive HCM were better, and the control group was the best (all P<0.001). ③During exercise, the GLS, GCS, GRS, twist of the left ventricle and the MAPSE were the lowest in the obstructive HCM, which increased in the labile-obstructive and non-obstructive HCM, and were best in the control group. The Ts-SD and Te-SD were the shortest in the control group, were prolonged in non-obstructive and labile-obstruction HCM, and were longest in obstructive HCM (all P<0.05). Additionally, the exercise time of the control group was the longest, followed by non-obstructive and labile-obstruction HCM, and the shortest in the obstructive HCM (all P<0.05). The METs of obstructive HCM were significantly lower than the other three groups (all P<0.05). \u0000 \u0000 \u0000Conclusions \u0000In obstructive HCM, the left ventricular systolic strain and synchronization, as well as the MAPSE, are significantly impaired in patients both at rest and during exercise. The patients with labile-obstructive and non-obstructive HCM have reduced left ventricular GLS, twist, and e′, but normal left ventricular GCS, GRS, synchrony, and MAPSE at rest, which are all impaired during exercise. \u0000 \u0000 \u0000Key words: \u0000Two-dimensional speckle tracking imaging; Tissue Doppler imaging; Hypertrophic cardiomyopathy; Exercise stress echocardiography; Myocardial mechanics; Synchrony","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44872823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the characteristics of mitral annular displacement in middle and late pregnancy fetuses based on speckle tracking imaging","authors":"M. Pan, Xianfeng Guo, Bowen Zhao, Y. Mao, Jialing Luo","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.008","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.008","url":null,"abstract":"Objective \u0000To assess the longitudinal mitral annular plane systolic excursion (MAPSE) of different directions in normal fetuses during mid-late pregnancy based on two-dimensional speckle tracking imaging (STI). \u0000 \u0000 \u0000Methods \u0000Seventy-six normal fetuses during middle and late pregnancy were selected at 26-32 weeks of gestation. The peak MAPSE was measured by free angle M-mode echocardiography (FAM) perpendicular to the lateral annulus in the mitral annular plane. The time-displacement curves of interventricular septal mitral annulus in three different directions including points A, B and C through transverse level of apex were recorded by STI. The peak MAPSE of interventricular septal mitral annulus (SEPT-MAPSE-A, SEPT-MAPSE-B, SEPT-MAPSE-C) in three different directions including points A, B and C and the time to peak (TTP: SEPT-TTP-A, SEPT-TTP-B, SEPT-TTP-C) were recorded respectively. The time-displacement curves of lateral mitral annulus in three different directions including points A, B and C through transverse level of apex were recorded by STI. The peak MAPSE of lateral mitral annulus (LAT-MAPSE-A, LAT-MAPSE-B, LAT-MAPSE-C) in three different directions including points A, B and C, the time to peak(LAT-TTP-A, LAT-TTP-B, LAT-TTP-C) were recorded respectively. Finally, the data were analyzed statistically. \u0000 \u0000 \u0000Results \u0000The peak MAPSE of the lateral mitral annulus in 3 different directions including points A, B and C[LAT-MAPSE-A (3.62±1.01)mm, LAT-MAPSE-B (3.95±1.04)mm, LAT-MAPSE-C (4.45±1.05)mm] were greater than those of the interventricular septum mitral annulus[SEPT-MAPSE-A (3.41±0.63)mm, SEPT-MAPSE-B (3.07±0.50)mm, SEPT-MAPSE-C (2.82±0.51)mm]. LAT-MAPSE-C and SEPT-MAPSE-A were the largest longitudinal excursions of mitral annulus. The differences were statistically significant in points B and C (P 0.05). LAT-MAPSE-C was less than FAM-MAPSE[(6.06±1.35)mm]. There was a significant difference between them(P 0.05). There were no significant differences in time to peak of lateral mitral annulus[LAT-TTP-A(0.210±0.008)s, LAT-TTP-B(0.213±0.006)s, LAT-TTP-C(0.210±0.007)s] in directions inclucling points A, B, C(P>0.05). \u0000 \u0000 \u0000Conclusions \u0000Longitudinal systolic motion of fetal left ventricular wall during mid-late pregnancy has good synchronization. Longitudinal motion of fetal mitral annulus is a comprehensive movement of multiple directions and different degrees of displacement, with the movement perpendicular to the annulus as the maximum displacement direction. The displacement parameters of mitral annulus measured by STI can reflect the left ventricular longitudinal systolic function and have clinical application value in evaluating the left ventricular longitudinal systolic function of fetuses. \u0000 \u0000 \u0000Key words: \u0000Speckle tracking imaging; Fetus; Mid-late pregnancy; Mitral annular plane systolic excursion; Free angle M-mode echocardiography","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43077591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of shear wave elastography in the evaluation of local advanced rectal cancer after neoadjuvant radiochemotherapy: the initial experience","authors":"Yue Cong, Z. Fan, Ying Dai, Zhongyi Zhang","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.015","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.015","url":null,"abstract":"Objective \u0000To investigate the value of shear wave elastography(SWE) to evaluate local advanced rectal cancer after neoadjuvant radiochemotherapy. \u0000 \u0000 \u0000Methods \u0000In a retrospective study, endorectal ultrasound(ERUS) and endorectal SWE were performed in 73 patients with local advanced rectal cancer before and after neoadjuvant radiochemotherapy. The mean and maximum values of Young′s modulus for SWE to evaluate the lesions before and after neoadjuvant radiochemotherapy were recorded. According to the postoperative pathological T stage, the lesions were divided into reduction of T stage group and non-reduction of T stage group. The efficacy of ERUS in diagnosing reduction of T stage was calculated, and the differences of the mean and maximum values of Young′s modulus between reduction of T stage group and non-reduction of T stage group was calculated, and the differences between the two groups were compared. ROC curves were constructed by the difference of mean and maximum Young′s modulus of lesions before and after neoadjuvant radiochemotherapy, respectively, to evaluate the diagnostic value of the difference in predicting reduction of T stage. \u0000 \u0000 \u0000Results \u0000A total of 57 cases had reduction of T stage after neoadjuvant radiochemotherapy (57/73, 78.1%). The mean and maximum values of Young′s modulus before and after neoadjuvant radiochemotherapy were compared, and the differences were statistically significant(all P<0.01). After neoadjuvant radiochemotherapy, the values of Young′s modulus of the lesions increased with the increase of pT stage. Compared with the mean values of Young′s modulus of the lesions in pT3 stage, the differences of the mean values of Young′s modulus of the lesions in pT0, pT1 and pT2 stages were statistically significant(all P<0.01). Compared with the maximum values of Young′s modulus of the lesions in pT3 stage, the differences of the maximum values of Young′s modulus of the lesions in pT0 and pT1 stage were statistically significant(all P<0.01). The differences of the mean value and the maximum value of Young′s modulus in the reduction of T stage group and the non-reduction of T stage group was statistically significant(all P<0.01). The ROC curve was established and determined by calculation. Taking the average difference of 34.7 kPa as the best diagnostic threshold, the average hardness of the lesion after neoadjuvant radiochemotherapy decreased more than 34.7 kPa to diagnose the reduction of T stage, the sensitivity, specificity and accuracy were 87.7%, 93.8% and 89.0%, respectively. Compared with ERUS, the difference was statistically significant(P=0.032). \u0000 \u0000 \u0000Conclusions \u0000Shear wave elastography is an effective technology to help ERUS in evaluating the lesions of rectal cancer after neoadjuvant radiochemotherapy and has a promising future. \u0000 \u0000 \u0000Key words: \u0000Endosonography; Rectal neoplasms; Elasticity imaging techniques; Shear wave elastography; Neoadjuvant radiochemotherapy","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45049634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of transesophageal echocardiography in high ventricular septal defect closure via the small intercostal incision with eccentric occluder in children","authors":"Jin Yu, Jingjing Ye, Zewei Zhang, Jian-hua Li, Jingjing Qian, Xiuzhen Yang, Liang-long Ma","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.004","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.004","url":null,"abstract":"Objective \u0000To explore the value of transesophageal echocardiography (TEE) in high ventricular septal defect (VSD) occlusion via a left parasternal ultra-minimal intercostal incision (≤1 cm) with eccentric occluder in children. \u0000 \u0000 \u0000Methods \u0000Forty-eight children with high VSD underwent device occlusion via ultraminimal intercostal incision with eccentric occluder. The whole operation, including preoperative evaluation, intraoperative localization and guidance and postoperation evaluation were performed under the guidance of TEE. \u0000 \u0000 \u0000Results \u0000Forty-six children with high VSD underwent successfully device closure in all 48 cases and the operation success rate was 95.8%. The average size of high VSD was 2.2-6.0 (3.70±0.90)mm and the average size of eccentric occluder was 4-8 (5.48±1.12)mm. The average operation duration was 18-98 (49.80±16.71)min. There were 2 cases of peri-membranous high VSD and 44 cases of outlet-typle VSD, of which 10 cases of mild aortic valve prolapses (AVOP), including 5 cases of aortic valve regurgitation(AR). In addition, there was 1 case of replacement of device, 1 case of having septum below the margin of the defect and 1 case of using a dilator for a small defect. The 46 cases were followed up for 6 to 42 months, and the pericardial effusion occured in 3 cases and disappeared during follow-up. No other abnormal conditions were found. \u0000 \u0000 \u0000Conclusions \u0000During the surgery of high VSD device occlusion via ultraminimal intercostal incision with eccentric occluder, TEE has an important value in defect assessment, intraoperative localization and guidance, and immediate evaluation of efficacy, and can effectively guide the device occlusion of high VSD. \u0000 \u0000 \u0000Key words: \u0000Echocardiography, transesophageal; Ventricular septal defect; Minimal surgical procedures; Children","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45984272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Value of transoral ultrasound guided biopsy for oral tumors","authors":"Ting Wei, Man Lu, Ziyue Hu, Juan Li, Xiaobo Wu, Bo Tan","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.013","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.013","url":null,"abstract":"Objective \u0000To determine the value of transoral ultrasound (US) guided biopsy for oral tumors. \u0000 \u0000 \u0000Methods \u0000A consecutive series of 36 patients who underwent transoral US-guided biopsy of oral tumors were evaluated retrospectively. By testing against histopathological results after surgery, the diagnostic sensitivity, specificity, positive predictive value, negative predictive value and accuracy of transoral US-guided biopsy for oral tumors were calculated. ROC curves were plotted and the area under the curve were evaluated. \u0000 \u0000 \u0000Results \u0000All 36 lesions were successfully performed transoral US-guided biopsy. The diagnostic sensitivity, specificity, positive predictive value, negative predictive value and accuracy of this technique for the diagnosis of oral lesions were 87.0%, 100%, 100%, 81.3% and 91.7% respectively. In ROC curve analysis, the area under the curve was 0.935. No serious complications were observed. \u0000 \u0000 \u0000Conclusions \u0000Transoral US-guided biopsy can be considered as a safe and effective technology for early diagnosis and clinical treatment of oral tumors. \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Mouth neoplasms; Transoral ultrasound guided; Biopsy","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42386909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}