目的 分析高频彩色多普勒超声联合MRI在乳腺癌腋下转移性淋巴结中的诊断效能.方法 回顾性分析98例乳腺癌患者根治术前超声及MRI影像资料,以所有患者手术病理结果为"金标准",分析单独应用高频彩色多普勒超声、MRI及高频高彩色多普勒超声联合MRI对转移性淋巴结的诊断效能.结果 超声结果显示转移性淋巴结46例,非转移性淋巴结52例;MRI结果显示转移性淋巴结47例,非转移性淋巴结51例;超声联合MRI结果显示转移性淋巴结53例,非转移性淋巴结45例.转移性淋巴结患者L/S、皮质厚度、ADC值、边缘不规则、脂肪间隙不清晰、高DWI、强化不均及未见淋巴门与非转移性淋巴结患者差异均有统计学意义(均P＜0.05).转移性淋巴结的Adler血流分级及血流类型与非转移性淋巴结差异均有统计学意义(均P＜0.05).结论 高频彩色多普勒超声联合MRI用于转移、非转移性乳腺癌淋巴结患者的诊断效能较高.

目的 分析多层螺旋CT低千伏小儿胸部成像的临床可行性及相关图像质量评价.方法 收集行胸部CT检测患儿50例为观察组,应用CARE Child和基于原始数据迭代重建(SAFIRE)联合应用技术;选取行胸部CT检测患儿50例为对照组,应用常规儿童胸部CT扫描.观察两组扫描相关数据、CT数值、对比度噪声比(CNR)和信噪比(SNR).结果 观察组有效辐射剂量、辐射剂量长度乘积及容积CT剂量指数均低于对照组(均P＜0.05);两组图像质量评分一致性较好(Kappa=0.75);两组图像噪声水平差异无统计学意义(P＞0.05);观察组各感兴趣区内CT数值、SNR及CNR均高于对照组(均P＜0.05).结论 CARE Child和SAFIRE技术联合应用于儿童胸部CT低剂量检查,可在图像质量满意的情况下大幅度减少患者的辐射剂量.

Objective To evaluate the clinical value of 16-slice spiral CT low dose chest scanning in the diagnosis of pulmonary tuberculosis.Methods From June 13,2014 to June 20,2017,80 patients with pulmonary tuberculosis in Yuyao People＇s Hospital were selected in the study.The conventional chest dose( control group) and low dose(observation group) of 16 -slice spiral CT were used.The diagnostic accuracy,radiation dose of the two methods,lymph node or vascular space display and image features were observed.Results The diagnostic accuracy of the two methods had no statistically significant difference (P>0.05).The dose product length,the CT dose index in the observation group were (32.98 ± 2.57) mGycm,(44.29 ± 3.47),respectively,which were significantly lower than those in the control group[(127.66 ± 5.03)mGycm,(44.29 ± 3.47)] ( t=106.01,21.05,all P<0.05).The display clarity of lymph nodes or vascular space of the observation group was 90.00% ,which of the control group was 92.50% ,there was no statistically significant difference between the two groups (P>0.05).The rates of ground glass shadow,burr of the observation group were 29.32% ,31.58% ,respectively,which were significantly lower than those of the control group (41.35% ,47.37% ),the differences were statistically significant ( χ2 =4.21,6.94,all P <0.05).Other signs detection probability are similar between the two groups and had no statistically significant differences (all P>0.05).Conclusion The low dose chest CT scan with 16 rows spiral CT has high clinical value, low radiation dose and high diagnostic accuracy in the diagnosis of pulmonary tuberculosis.

目的:对医院放射科生物安全管理现状进行调查,提出安全管理整改措施.方法:对2017年医院放射科生物安全管理现状进行调查,提出安全管理整改措施.2018年实施整改措施.比较整改前后放射科内部布局,生物安全管理制度,工作人员生物安全知识.结果:整改后相关人员放射防护重视程度、防护知识知晓程度、防护操作实际水平均明显提高,与整改前相比差异明显(P＜0.05);整改后,放射科人员对工作环境、工作制度、业务培训、防护用品配备的满意度评分均明显提高(P＜0.05).结论:对放射科生物安全管理现状进行分析,结合调查结果,提出对应的整改措施,可完善医院放射科生物安全管理.

Objective To investigate the value of CAREDose 4D and SAFIRE in the diagnosis of solitary pulmonary nodule ( GGN) .Methods 50 patients with pulmonary GGN admitted to the Yuyao people's Hospital of Zhejiang province in January 2014-March 2017 were selected as the subjects .Patients with HRCT diagnosis , in the study group , were treated with CARE-Dose4D and SAFIRE technology scan , the control group underwent conventional scanning method , part of the data was the same with short time interval ( less than 30 days by using two different scanning methods ) .Using surgical pathology as the gold stand-ard, the diagnosis effect different scanning method was compared .Results Conventional scanning mediastinal window image quality, and lung window image quality;CAREDose4D and SAFIRE images showed no significant difference ( P >0.05);There was no statistical significance of conventional scanning with CAREDose 4D and SAFIRE image scanning length difference ( P >0 .05 ) , CAREDose 4 D , and SAFIRE scan image of CTDIvol , DLP and ED index were lower than that of conventional scanning ( P <0.05);the detection rate of CAREDose4D and SAFIRE images of bronchial stenosis or truncation and vacuoles or honey -comb was slightly higher than the conventional scanning ( P <0.05), CAREDose4D and SAFIRE images with conventional scan-ning of leaf, burrs or sharp, vascular bundle and pleural indentation rate had no significant difference ( P >0.05).Conclusion The images obtained by CAREDose4D and SAFIRE technique in the diagnosis of solitary pulmonary nodule (GGN) of the lung are clear and the radiation dose is small , so it is worthy of popularization and application .

目的:探讨腹部创伤经过CT诊断的临床意义和临床应用价值。方法:选取2011年6月到2012年6月腹部创伤患者92例,其中手术治疗组52例,保守治疗40例,然后结合手术治疗结果、CT诊断来进行对照分析。结果:对手术治疗的52例进行分析和CT诊断对照,49例符台,CT诊断准确率为94.2%。结论:在腹部创伤的临床检查中CT检查具有较好的效果。