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Objective:To investigate the behavior and emotion of trainees (residents) in the standardized residency training under the novel coronavirus pneumonia (NCP) epidemic, and adjust the training plan and mode of standardized residency training during the NCP epidemic according to the survey results.Methods:A real-name closed questionnaire survey was conducted among 40 residents (27 ultrasound majors and 13 other majors) in ultrasound department using the "Questionnaire Star" WeChat applet, including basic personal information, questions related to NCP, behavioral change survey, behavioral attitude survey and emotional status survey. All the collected data were further statistically analyzed by Chi-square test and rank sum test using SPSS 19.0Results:There were forty valid questionnaires and the participation rate was 100.0%. The accuracy of 24 NCP-related questions was not significantly different between residents majoring in ultrasound and other specialties [92.0%(596/648) vs. 93.6%(292/312), P>0.05]. All the residents had a good understanding of NCP. The main behaviors of going out were significantly reduced, while various behaviors of being at home were significantly increased. Their interest in learning declined. When the epidemic happened (or possibly) in the community or village they lived in, their negative emotions, such as nervousness, fear pessimism and depression, were obviously expressed. Network teaching and evaluation through WeChat public number were adopted and we guided residents to adjust their home behaviors and emotions according to the survey results. Conclusion:Under the NCP epidemic, the behaviors and emotions of residents had been extensively changed. The training center should adjust the teaching plan and mode of training in time, and provide more counselling service in psychology and learning for residents during the epidemic.
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Objective@#To analyze the microvessel density (MVD) and lymph node metastasis in the papillary thyroid carcinoma (PTC) with punctate or sheet calcification.@*Methods@#Fifty PTC patients in the Affiliated Hospital of Yangzhou University from May 2015 to October 2017 were retrospectively enrolled in this study. All of the 50 PTC patients were divided into punctate calcification group (38 cases) and sheet calcification group (12 cases) according to the different features of pathological calcification in microscope examination. For the two groups, the central and peripheral zone MVD and the lymph node metastasis of each PTC nodule were compared.@*Results@#For PTC nodules of punctate calcification group, the mean central and peripheral zone MVD were (51±7)/HP and (64±8)/HP, respectively. For those of sheet calcification group, which were (35±5)/HP and (49±6)/HP, respectively. The mean MVD in both central and peripheral zone of PTC nodules of punctate calcification group were significantly higher than those of the sheet calcification group (t values were 10.183 and 12.406, both P < 0.05). The neck Ⅵ area lymph node metastasis rates of the punctate and sheet calcification groups were 42.1% (16/38) and 8.3% (1/12), respectively. The lymph node metastasis rate of the punctate calcification group was significantly higher than that of the sheet calcification group (χ 2 = 4.635, P < 0.05).@*Conclusion@#PTC nodules with different type of pathological calcification may have different invasion and metastasis, and PTC with punctate calcification is more likely to undergo local metastasis than PTC with sheet calcification.
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Objective To explore the clinicopathological characters of T2 gastric cancer and the value of MSCT in the preop‐erative TNM staging of T2 gastric cancer .Methods A total of 93 patients with T2 gastric cancer were included in our study and un‐derwent preoperative MSCT staging ,who were confirmed by pathologic results .Then the results were compared with those of path‐ologic TNM staging .Also the clinicopathological features of the T2 gastric cancer were analyzed .Results There were no statistical‐ly significant differences in the clinicopathological characters among T2a and T2b patients (P>0 .05) .Comparing with pathologic TNM stage ,the T staging accuracy of MSCT was 91 .40% (85/93) ,the N staging accuracies of CT was 66 .67% (62/93) ,in which , 68 .18% (30/44) ,65 .00% (26/40) ,60 .00% (3/5) and 75 .00% (3/4) were for pN0 ,pN1 ,pN2 and pN3 .And the TNM staging ac‐curacies of CT was 67 .74% (63/93) ,in which ,68 .18% (30/44) ,64 .10% (25/39) ,60 .00% (3/5) and 100% (5/5) were for stageⅠ ,Ⅱ ,Ⅲ and Ⅳ .Conclusion There are no significant different on clinicopathology features among T2a and T2b patients .MSCT can clearly determine the preoperative TNM staging of T2 gastric cancer .
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Objective To determine whether cadence contrast pulse sequencing (CPS) harmonic ultrasonography can be used to predict aggressiveness of peripheral zone prostate cancer.Methods CPS harmonic ultrasonography was performed in 62 biopsy-proved prostate cancer patients.Time intensity curves were reconstructed for biopsy-proved or radical prostatectomy histopathology proved prostate cancer lesions.The characteristics of the curves were described using hemodynamic parameters including arrival time (AT),time-to peak (TTP) and peak intensity (PI).The differences of hemodynamic parameters between different Gleason score and pathologic stage were analyzed.Results Prostate biopsy revealed 156 peripheral zone prostate cancer lesions among 62 patients,including 40 low grade lesions and 116 high grade lesions.In comparison with low-grade lesions,the contrast agents arrived and distributed earlier in highgrade lesions (P =0.005,0.023).In addition to lower AT and TTP,high-grade tumors had higher PI than low-grade tumors (P =0.008).Among 21 patients underwent radical prostatectomy,histopathology documented 14 low grade tumors and 17 high grade tumors,significant differences of hemodynamic parameters were found between these two groups (P ＜0.05).Furthermore,prostate cancer lesions with extra capsular extension also had high PI than those confined in the gland (P =0.000).Conclusions Contrast-enhanced ultrasound and hemodynamic parameters might be helpful in predicting aggressiveness of prostate cancer.
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Objective To determine the utility of elastography guided biopsies in men undergoing transrectal ultrasound-guided transperineal prostate biopsies.Methods A total of 108 consecutive patients suspicious for prostate cancer due to elevated serum prostate specific antigen level or abnormal digital rectal examination were enrolled in this prospective study.All patients underwent combined elastography-targeted and 10 core-systematic transperineal biopsy.The impact of elastography-targeted biopsies on the prostate cancer detection rate was analyzed in comparison with prostate biopsy pathology.Results The overall prostate cancer detection rate was 49.1％ (53/108).The prostate cancer detection rate of systematic biopsy was 35.2％(38/108).The increase in cancer detection rate by elastography-targeted biopsies was 13.9％(15/108,P =0.039).A total of 1296 cores were sampled among 108 patients,including 1080 systematic biopsy cores and 216 targeted biopsy cores.The positive rate of targeted biopsy was significantly higher than systematic biopsy (50.9％ vs 14.1％,P ＜0.0001).Conclusions Prostate cancer detection rate could be significantly improved by elastography targeted transperineal biopsy.
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Objective To analyze the enhancement degree of prostate cancer on contrast-enhanced transrectal ultrasonography (CETRUS) in relation to tumor location.Methods 150 patients suspected of prostate cancer were evaluated with CETRUS.The degree of enhancement of the lesions was objectively measured using peak intensity (PI) with time-intensity curve analysis software.The peak intensity of the lesions located in the medial peripheral zone,the lateral peripheral zone and the transition zone was compared and analyzed.Results Prostate cancer was detected in 96 of 150 patients.The mean PI value of the prostate cancer was significantly higher than that of the benign prostate hyperplasia lesions [(9.88 ± 3.76)dB vs (8.74±4.52)dB,P ＜0.01].The PI value of the cancer foci located in the medial peripheral zone,the lateral peripheral zone and the transition zone increased gradually [(6.55 ± 2.90)dB vs (10.57±2.52)dB vs (13.64±2.38)dB,P ＜0.001].The Spearman correlation coefficient between the tumor location and the PI value was 0.718 (P ＜0.001).The partial correlation coefficient was 0.720 when the Gleason score was used as a covariate (P ＜0.001).Conclusions There was significant difference in enhancement degree between prostate cancer lesions with different location.Being aware of this might be valuable for improving the sensitivity and specificity of CEUS in diagnosis of the prostate cancer.