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期刊信息

创刊日期：1990年
主管单位：中国人民共和国卫生部
主办单位：中国医学影像技术研究会
　　　　　中国医科大学
承办单位：中国医科大学附属盛京医院
　　　　　辽宁省医学影像学会
编辑出版：《中国临床医学影像杂志》
　　　　　编辑部
刊　　期：月刊

2016 Vol. 27, No. 7 Published: 2016-07-20

	457	A correlative study between MRI features and pathology in subtypes of WHO grade Ⅰ meningiomas
		ZHANG Tao, FANG Long-jiang, WANG Yong-qi, YIN Dan-dan
		Objective: To review the relationship between MRI features and pathology in subtypes of WHO grade Ⅰ meningiomas, and to improve the skill in diagnosis. Methods: MRI features and pathology of 131 surgically treated WHO grade Ⅰ meningiomas were retrospectively reviewed. The MRI features of meningioma were analyzed, including signal intensity on T1-weighted and T2-weighted images, peritumoral brain edema, and degree of enhancement in contrast-enhanced MRI. These features were scored according to their criteria. The correlation between MR features and pathology was calculated by Kruskal-Wallis H test(P＜0.05）. Results: T1WI signal intensity in subtypes was statistically different(χ2=30.4, P<0.001), and T2WI signal intensity in subtypes was statistically different(χ2=20.1, P<0.001). Peritumoral brain edema in subtypes was not statistically different(χ2=9.09, P=0.059). Enhancement degree in subtypes was statistically different(χ2=47.2, P<0.001). Conclusion: The angiomatous meningioma is the easiest to be identified from other subtypes. The meningothelial meningioma is easier to be identified from other subtypes. Transitional, fibrous and psammomatous meningioma are hard to be identified from each other, but easier to be identified from angiomatous meningioma and meningothelial meningioma.
		2016 Vol. 27 (7): 457-461 [Abstract] ( 766 ) HTML (1 KB) PDF (0 KB) ( 277 )

	462	Correlation of color Doppler ultrasound in breast cancer and cell protein expression
		ZHAO Ni1, YAO Xiu-fen1, ZHAO Su-ping2
		Objective: To explore the correlation between color Doppler ultrasound findings and the expression levels of ER, PR, CerbB-2, Ki-67 and P53 in breast cancer and the clinical significance. Methods: Ninety-seven patients of breast cancer confirmed pathologically were examined by color Doppler ultrasound and the expression levels of ER, PR, CerbB-2, Ki-67 and P53 was analyzed and correlated with the ultrasound findings. Results: In the 97 cases of breast cancer, the positive rates of ER, PR, CerbB-2, Ki-67, and P53 were 68.04%, 61.86%, 77.32%, 60.82% and 56.70%, respectively. ①In the group of small masses, the positive expression rates of ER and PR were higher than those in their corresponding group, but the CerbB-2 was opposite, with statistically significant differences(P<0.05). ②In the group with uniform internal echo, the positive expression rates of PR and P53 were higher than those in the corresponding group, with statistically significant differences(P<0.05). ③In the group with spiculation, the positive expression rates of ER, PR, CerbB-2, Ki-67, P53 were higher than those in the corresponding group, and the differences were statistically significant(P<0.05).④In microcalcification group, the positive expression rates of ER, PR, CerbB-2, Ki-67, P53 were higher than those in no microcalcification group, with statistically significant differences(P<0.05). ⑤In the group with rich blood supply, the positive expression rates of ER, PR, CerbB-2, Ki-67 were higher than those in the group lack of blood supply, with statistically significant differences(P<0.05). ⑥In the group with positive lymph nodes, the positive expression rates of ER, PR CerbB-2, P53 were higher than those in the corresponding group, with statistically significant differences(P<0.05). Conclusion: Ultrasound findings are closely related to the pathology of breast cancer. Ultrasonic morphological characteristics of cancer might predict the expression of some types of proteins. The level of the proteins and the ultrasound features, including spiculation, microcalcification, blood supply and lymph node metastasis, are effective indicators of the malignancy grade. Combination of the ultrasound features and molecular biomarkers can play a crucial role in early evaluating of treatment and prognosis of breast cancer.
		2016 Vol. 27 (7): 462-466 [Abstract] ( 952 ) HTML (1 KB) PDF (0 KB) ( 220 )

	467	Coronary artery stent imaging using an integrated electronics detector and#br# different slice reconstructions: in vitro experience
		JIN Shi-qi1, WANG Yan-yi1, YANG Fan1, CHU Jin-gang1, YU Yang2, DAI Xu1
		Objective: To assess the visualization improvement for different coronary stents especially ≤3 mm, using different image slice thickness reconstructed by integrated electronics. Methods: Eight different coronary stents with inner diameter of 3.5 mm, 3 mm and 2.5 mm were placed in plastic tubes filled with contrast agent(iohexol 350 mgI/mL) diluted with saline to make sure that the CT value of contrast was about 350 HU at 120 kVp. The whole phantom was then settled in an oil tank to mimic the pericardium fatty environment. All the CT scanning data was acquired using Siemens Definition Flash with a integrated electronics detector under prospective coronary CTA mode. Images were reconstructed into 0.5, 0.6 and 0.75 mm slice thickness. Two experienced radiologists blinded to each other evaluated the image quality, image noise, artificial lumen narrowing(ALN), lumial attenuation difference and attenuation-to-noise ratio(ANR). Results: Among the 3 groups, 0.5 mm images reconstructed were rated best for clearly showing the details of the stents and the inner-lumen situations(Kappa=0.797). The ALN value of 0.5 mm group was the lowest(40.69%±4.16%), and was superior to 0.6 and 0.75 mm groups(P=0.043, 0.018, P<0.05). But the differences of luminal attenuation and ANR among the three groups were not significant(P>0.05). With the increasing of the iterative reconstruction slice thickness, the image noise decreased, but the differences between 0.5 mm and 0.6 mm groups were not statistically significant(P>0.05). Conclusion: Stent visualization can be benefited from 0.5 mm slice thickness image for more accurate lumen narrowing assessment and lower image noise.
		2016 Vol. 27 (7): 467-470 [Abstract] ( 880 ) HTML (1 KB) PDF (0 KB) ( 292 )

	471	Relationship of myocardial segmental mechanics and regional volume change with#br# left ventricular systolic synchrony in patients with coronary heart disease
		ZHANG Xiao-hua1, JIANG Zhi-rong1, SONG Jia-guang2, ZHANG Nan2
		Objective: To explore the relationship of myocardial segmental mechanics and regional volume change with left ventricular systolic asynchrony in patients with coronary heart disease(CHD) by real-time three-dimensional echocardiography(RT-3DE) and two-dimensional speckle imaging(2D-STI). Methods: Twenty-four patients with myocardial ischemia(myocardial ischemia group), 26 patients with myocardial infarction(myocardial infarction group) and 30 normal subjects(control group) were enrolled in this study. All patients were measured with 2D-STI and RT-3DE. Images were acquired and analyzed off-line on Qlab 8.1 station. The left ventricular myocardial segmental mechanics time indexes and standard deviation(Tls-16%, Trs-12%, Tcs-12%, Trot-12%, and Tls-16-SD%, Trs-12-SD%, Tcs-12-SD%, Trot-12-SD%), the left ventricular regional volume change time index and standard deviation(Tmsv-16% and Tmsv-16-SD%) were obtained, respectively. The difference between myocardial segmental mechanics and regional volume change(Tlsv%, Trsv%, Tcsv%, Trotv%) were calculated. Results: Compared with control group, Tls-16%, Tls-16-SD%, Tmsv-16%, Tmsv-16-SD% and Tlsv% were significantly prolonged(P<0.05) in myocardial ischemia group. Compared with myocardial ischemia group and control group, all the above time indexes had significant differences(P<0.05, P<0.01) in myocardial infarction group. Tlsv%, Trsv%, Tcsv% and Trotv% were significantly negatively correlated with LVEF, respectively in myocardial infarction group. Conclusion: Tlsv%, Trsv%, Tcsv% and Trotv% can become new indicators to assess the left ventricular asynchrony in myocardial infarction patients. Tlsv% is a potential sensitive indicator to evaluate the left ventricular asynchrony in myocardial ischemia patients.
		2016 Vol. 27 (7): 471-474 [Abstract] ( 839 ) HTML (1 KB) PDF (0 KB) ( 221 )

	475	Research on relationship of abdominal great vessels abnormalities, pediatric heterotaxy syndrome and#br# congenital cardiovascular diseases
		WU Ming-jun, GUO Dan-yang, LIU Chang, FU Xiu-ting, LV Qiu-chen
		Objective: To study the relationship of abdominal great vessels abnormalities, pediatric heterotaxy and congenital cardiovascular diseases(CCVD) by observing the positional relationship of inferior vena cava(IVC), abdominal aorta(AO) and vena azygos from subxiphoid view． Methods: Ninety-one cases of pediatric abdominal great vessels abnormalities diagnosed by ultrasonic examination and confirmed by MSCT, operation or autopsy were analyzed． These cases were divided into the following three categories. Type Ⅰ: absence of IVC and dilatation of azygos vein. Type Ⅱ: AO and IVC are on the same side of spine. Type Ⅲ: situs inversus of AO and IVC． The relationship of great vessels, heterotaxy and CCVD from different subxiphoid views were analyzed． Results: In the 91 cases of pediatric abdominal great vessels abnormalities observed from subxiphoid view, there were 8 cases of type Ⅰ， including 7 cases of CCVD with polysplenia and left isomerism, 1 case of normal spleen and heart; 29 cases of type Ⅱ, including 27 cases of asplenia syndrome, 29 cases of CCVD with right isomerism． Fifty-four cases of type Ⅲ, including 53 cases of situs inversus viscerum, 27 cases of CCVD with 1 case of asplenia syndrome and left isomerism. Conclusions: Abnormalities of abdominal great vessels often imply heterotaxy or situs inversus with different types of CCVD． It should be a routine inspection section for pediatric CCVD．
		2016 Vol. 27 (7): 475-477 [Abstract] ( 1040 ) HTML (1 KB) PDF (0 KB) ( 265 )

	478	Preliminary research on the elastic changes in the liver of biliary atresia measured by#br# ultrasonic real time shear wave elasticity
		ZHANG Xin-xin, JU Hao, LI Shi-xing, SHI Bo, ZHANG Yao, FENG Shu
		Objective: To investigate the elastic changes of liver in children with biliary atresia(BA) with ultrasonic real time shear wave elasticity(SWE). Method: Twenty-five cases of children with BA, 30 cases of infantile hepatitis syndrome(IHS) and 23 cases of infants with normal liver function were examined with SWE. The liver stiffness by Young’s modulus value was measured from the liver tissue locating about 2 cm from the liver border, and then compared among different groups. Result: The Young’s modulus values of BA group, IHS group and the normal group were (18.10±10.70) kPa, (6.68±1.98) kPa and (5.69±0.70) kPa, respectively, with a significant difference among the group(P<0.05). The Young’s modulus values were significantly different between group BA and IHS, and between group HIS and normal group. The Young’s modulus value in group BA showed a positive linear relationship with the age. Conclusion: SWE may assess liver fibrosis in children with BA indirectly, and can provide information of liver stiffness for the diagnosis of biliary atresia. It can also provide important evidence for clinicians to select the operation time and determine prognosis of biliary atresia in children.
		2016 Vol. 27 (7): 478-481 [Abstract] ( 754 ) HTML (1 KB) PDF (0 KB) ( 203 )

	482	Clinical research of docetaxel combined with iodized oil for the treatment of liver tumor
		KONG Peng1, MENG Ling-ping1, YANG Bin1, WANG Jia-ping2
		Objective: To explore the clinical effect of intervention programme using docetaxel combined with iodized oil in the treatment of liver cancer. Methods: Forty-three cases of primary advanced liver cancer were randomly divided into group A(docetaxel group with 22 cases) and group B (conventional therapy group with 21 cases). The patients in group A received injection of dexamethasone 10 mg to prevent allergic reaction firstly, and then docetaxel 60 mg/m2 dissolved in 100 mL of 0.9% saline was infused slowly. And finally transarterial embolism was performed with slow injection of 5-FU 250 mg and 5~20 mL iodine suspension until iodine oil deposited in the tumor foci was thick or blood flow slowed down. Patients in group B were treated with different combination of epirubicin(EADM) 40~60 mg/m2, mitomycin(MMC) 8 mg/m2, cisplatin(DDP) 60 mg/m2 or hydroxy camptothecin(HCPT) 20 mg/m2 according to the patients’ conditions, together with iodine oil. Then the short-term efficacy, the patient’s survival and the complications after treatment were compared. Results: The 6 and 12 months survival rates were 94.5%, 48.9% and 91.6%, 37.6% respectively for group A and group B, and the survival rates of the two groups were significantly different(P<0.05), while the complications in the two groups were not significantly different. Conclusion: Docetaxel-containing regimen can improve the life quality of patients with primary liver cancer compared with conventional chemotherapy treatment, and can prolong the survival of patients to a certain extent.
		2016 Vol. 27 (7): 482-486 [Abstract] ( 821 ) HTML (1 KB) PDF (0 KB) ( 294 )

	487	Clinical study of personalized noise index setting based on body mass index in abdominal CT imaging
		PU Ren-wang, LIU Yi-jun, LU Xu-lun, LIU Lei, WANG Shi-yu, LIU Ai-lian, GE Ying
		Objective: To explore the value of personalized noise index(NI) setting based on body mass index(BMI) in abdominal CT imaging. Methods: Group A contained 211 patients who underwent abdominal ATCM-CT at a fixed NI(10 HU), while group B contained 109 patients who underwent abdominal ATCM-CT at different NIs(10~14 HU, interval: 2 HU). Either group A or B was further divided into three subgroups based on BMI(BMI≤23, ＞23~26, >26): A1(n=47), A2(n=93) and A3(n=71); B1(n=42), B2(n=35) and B3(n=32). The examinations of all the cases were completed on GE Discovery HD CT. The following scan parameters were used in group A: 120 kVp, 3D Auto mA, NI=10 HU, scan time=0.8 s, slice thickness=5 mm, reconstruction interval=5 mm, pitch=1.375∶1, image processing mode: 40% ASIR, and reconstruction mode: Stnd. The individualized scan plan was used in group B: B1: NI=10 HU, B2: NI=12 HU, B3: NI=14 HU; the remaining parameters were the same as group A. Three levels adjacent to hepatic hilum were selected for each group of images. The SD of liver with a uniform density was measured and the results were averaged as the final image SD, and the volume-dose index(CTDIvol) was recorded. The inter-group and intra-group comparisons of SD and CTDIvol of groups A and B were performed with t test. The image quality was subjectively evaluated by two senior radiologists(working experience more than 5 years) with a 5-point scale, and the inter-observer consistency was analyzed by Kappa test. Results: The SD of subgroups A1, A2 and A3 was (11.01±0.88) HU, (9.44±1.24) HU and (8.30±1.40) HU, respectively, and that of subgroups B1, B2 and B3 was (10.90±0.82) HU, (10.79±0.52) HU and (10.96±0.68) HU, respectively. The results showed a significant difference within group A(A1>A2>A3)(P<0.05), but not within group B(P>0.05). There was no significant difference between subgroups A1 and B1(P>0.05), but A2<B2 and A3<B3 with significant differences(P<0.05). The CTDIvol of subgroups A1, A2 and A3 was (7.82±1.48) mGy, (15.00±4.21) mGy and (23.42±5.31) mGy, respectively, and that of subgroups B1, B2 and B3 was (7.33±1.49) mGy, (8.45±2.35) mGy and (9.54±2.84) mGy, respectively. The results showed no significant difference between subgroups A1 and B1, but B2<A2(a decrease by 43.67%) and B3<A3(a decrease by 59.26%) significantly. The image score of subgroups A1, A2 and A3 was 4.57±0.62, 4.58±0.61 and 4.59±0.62, respectively, and that of subgroups B1, B2 and B3 was 4.57±0.50, 4.80±0.65 and 4.56±0.67, respectively. The inter-group and intra-group comparisons of group A and B showed no significant difference in image quality(P>0.05). The results of Kappa test for the consistency of image quality score between two senior radiologists were 0.835, 0.711, 0.734, 0.742, 0.809 and 0.761. Conclusion: Using abdominal ATCM-CT based on BMI-dependent NI adjustment, there is a great reduction of radiation dose for patients with a bigger BMI, without influencing the diagnostic quality of images.
		2016 Vol. 27 (7): 487-490 [Abstract] ( 730 ) HTML (1 KB) PDF (0 KB) ( 244 )

	491	Value of 64-slice MSCT in the diagnosis of acute ischemic bowel disease
		ZHANG Peng1, JIA Huan-yu2
		Objective: To explore the value of 64-slice MSCT in the diagnosis of acute ischemic bowel disease. Method: Fifty-nine cases of acute abdomen of ischemic bowel disease were scanned with 64-slice MSCT and raw data were processed by MPR, MIP, VR and CPR. The imaging features were analyzed. Results: CT features of acute ischemic bowel disease included intestinal wall thickening, abnormal density and enhancement of intestinal wall, dilatation of intestine with gas and liquid, anomalies of mesenteric vascular diameter and density, filling-defect of mesenteric vessel. The filling-defect of mesenteric vessel could be the direct sign for diagnosis. There was obvious difference of enhancement degree between ischemic and normal intestine, which could be the basis for decision of resection range. Conclusion: 64-slice MSCT can serve as the primary method for the accurate diagnosis of ischemic bowel disease and can help to decide the resection range.
		2016 Vol. 27 (7): 491-494 [Abstract] ( 791 ) HTML (1 KB) PDF (0 KB) ( 228 )

	495	Experimental study of multi-b value DWI to evaluate efficacy of#br# endostar in human colon cancer xenograft in nude mice
		YAN Shuang, WANG Yun-ling, WANG Hong, MA Jing-xu, ZHAO Li-ping, JIA Wen-xiao
		Objective: To discuss the value of multi-b value DWI in evaluating efficacy of endostar in the human colon carcinoma xenograft tumor in nude mice non-invasively. Methods: HT-29 human colon cancer cells were seeded in 48 nude mice. The 48 mice were randomly divided into two groups, the control group and the experimental group, with 24 mice in each. Multi-b value DWI was acquired before, 2 days, 7 days and 14 days after treatment. Change of apparent diffusion coefficient(ADC) was observed. Eight nude mice were sacrificed after scanning 2 days, 7 days and 14 days after treatment, and immunohistochemical examination was done. Results: After treatment, ADC10b and ADChigh values of the tumor in endostar group increased gradually. ADClow and ADCperf values of the tumor in endostar group decreased gradually. There was statistically significant difference among four groups at different time points before and after treatment(F=29.986, 23.742, 21.598, 63.973, P＜0.05). In a paired comparison between time points, ADC10b, ADChigh and ADCperf were statistically different before, 2 days, 7 days and 14 days after treatment. ADClow was statistically different between different time points, but not between 2 days and 7 days after treatment. The other indexes of the tumor were statistically different in the comparison of every two time points. In the experimental group, the ADCperf value was positively correlated with microvessel density(MVD) at three time points(P＜0.05) and the ADC10b value was negatively correlated with MVD(P＜0.05). Conclusion: Multi-b value DWI can evaluate dynamically the change of human colon tumor xenograft model in nude mice after drug treatment, which can be considered as a reference index of early anti-angiogenesis drug efficacy.
		2016 Vol. 27 (7): 495-498 [Abstract] ( 937 ) HTML (1 KB) PDF (0 KB) ( 333 )

	499	Waveform and spectrum parameters of fetal ductus venosus of complex fetal heart malformation in#br# middle and late pregnancy
		CHEN Xin-mei1, YANG Ya2, LI Shu-juan1
		Objective: To analyze spectrum parameters of fetal ductus venosus of complex fetal heart malformations in middle and late pregnancy, and to find out the relationship between different complex fetal heart malformations and DV waveform characteristics. Method: DV waveform and spectrum parameters of complex fetal heart malformations were recorded, followed-up and grouped. Results: In the cases with right ventricular system abnormalities, the S, D, RI, PVIV and S/A increased significantly, while A waves significantly reduced, disappeard or even reversed. In the cases with left ventricular system abnormalities, the S and D increased, while A, RI, PVIV and S/A had no obvious change. The S, D, A, RI, PVIV and S/A in cases with conus arteriosus abnormalities and huge atrioventricular septal defect had no obvious difference. Conclusion: Abnormal DV waveform can be a clue for different types of complex fetal heart malformations.
		2016 Vol. 27 (7): 499-501 [Abstract] ( 859 ) HTML (1 KB) PDF (0 KB) ( 279 )

	502	Prenatal MRI diagnosis of congenital cystic adenomatoid malformation
		SHEN Min1, JIANG Kui-ming1, TAN Yu1, ZENG Yi-hui1, KUANG Si-chi2
		Objective: To assess the value of MRI in the diagnosis of congenital cystic adenomatoid malformation(CCAM). Methods: Fifty-three fetuses suspected of CCAM by MRI were collected from March 2013 to December 2015. All the fetuses underwent postnatal low dose enhanced CT examination and surgery. The MRI features of fetal CCAM were retrospectively analyzed, with the result of pathology as the golden standard. Among them, 8 fetuses underwent MRI twice, and the change of mass size was evaluated. Results: In the 53 cases, 52 cases of CCAM were confirmed by pathology, and 1 case was congenital lobar emphysema(CLE). In the 52 cases of CCAM, 28 cases were macrocystic type, showing clear border, multiple cysts with long T2 signal in the pulmonary lobe, septa of short T2 signal, and the diameter of the cysts was larger than 5 mm; 24 cases were microcystic type, showing clear border, homogeneity or microcysts with long T2 singal in the pulmonary lobe, and the diameter of cysts was smaller than 5 mm. Eight CCAM cases underwent two MRI examinations, 5 cases of which had no significant change in size and signal of the lesion, but 3 cases decreased in both size and signal. In the 53 fetuses, hearts shifted to the right in 17 cases, and to the left in 23 cases. Fifty-two fetuses were not associated with fetal hydrops, and 3 fetuses had polyhydramnios. Conclusion: MRI has great diagnostic value for CCAM. It can not only correctly demonstrate the location, type and change of the lesion, but also observe the degree of compression of surrounding organs. It can provide accurate information for the clinical prognosis of the fetus.
		2016 Vol. 27 (7): 502-505 [Abstract] ( 1097 ) HTML (1 KB) PDF (0 KB) ( 244 )

	506	Diagnostic value of three-vessel-trachea view in the diagnosis of fetal right arch
		ZHU Meng-meng, CAI Ai-lu, SUN Yue, SUN Wei
		Objective: To investigate the value of three-vessel-trachea view in the diagnosis of fetal right aortic arch. Methods: Ultrasonic characteristics in three-vessel-trachea view and clinical outcome of 61 fetuses with right aortic arch diagnosed by prenatal ultrasound in our hospital were retrospectively analyzed. Results: Sixty-one cases of fetal right aortic arch were diagnosed by prenatal ultrasound, with simple right aortic arch in 41 cases, double aortic arch in 2 cases, right aortic arch with cardiac abnormalities in 14 cases, right aortic arch with extracardiac malformations in 2 cases, and right aortic arch combined with cardiac and extracardiac malformations at the same time in 2 cases. Thirty-nine cases of live births postpartum confirmed prenatal diagnosis. Five cases of right aortic arch combined with other serious malformations chose induced labor(including 4 cases of autopsy results confirming the prenatal diagnosis, 1 case of induced labor without autopsy). Two cases are still under a close follow-up. One case of postpartum echocardiography result didn’t concord with the prenatal ultrasound diagnosis. Fourteen cases were lost from follow-up. Conclusion: Three-vessel-trachea view is a reliable view to diagnose fetal right aortic arch in prenatal ultrasonic examination, and simple fetal right aortic arch may not cause obvious clinical symptoms.
		2016 Vol. 27 (7): 506-508 [Abstract] ( 844 ) HTML (1 KB) PDF (0 KB) ( 195 )

	509	Analysis of 22 cases with fetal diaphragmatic eventration
		WANG Hui-zhu1, YAN Bing2, YUE Li-fang1, DONG Yan-hui1
		Objective: To investigate the prenatal ultrasound in the diagnosis of fetal diaphragmatic eventration. Methods: Twenty-two cases of fetal diaphragmatic eventration with prenatal ultrasound diagnosis, which were confirmed by biopsy and surgery, were analyzed retrospectively to evaluate the ultrasonic manifestation and clinical data. Results: In the 22 cases of diaphragmatic eventration diagnosed by prenatal ultrasound, of which 5 cases got amniocentesis, with chromosome examination abnormality in 2 cases． There were 8 cases confirmed by biopsy among 17 cases of abortions, 5 cases continued to term delivery and 4 cases got confirmed by surgery while surgical results were good. Conclusion: Most fetal diaphragmatic eventration has typical sonographic appearance． Prenatal ultrasound has important application value in the diagnosis of diaphragmatic eventration, which can provide important information for prenatal consultation and clinical treatment.
		2016 Vol. 27 (7): 509-511 [Abstract] ( 871 ) HTML (1 KB) PDF (0 KB) ( 488 )

	512	Effect of different scan field of view on CT value and water(iodine) concentration from#br# standard phantom in single-source dual-energy CT
		LIU Xiao-dong, LIU Yi-jun, LIU Ai-lian, SUN Mei-yu, LIU Jing-hong, TIAN Shi-feng,
		Objective: To investigate the effect of different scan field of views(FOVs) on CT value, water-iodine concentration and SD value of standard water phantom by single-source dual-energy CT. Methods: A standard water phantom(GE, USA) was scanned by a single-source dual-energy CT scanner(GE Discovery 750HD, USA) with large and medium FOV, respectively(group L: large FOV; group M: medium FOV)． The other parameters were as follows: tube voltage switched instantaneously between 140 kVp and 80 kVp. Current modulation changed from 165 to 262.5 mAs. Thickness was 5 mm and pitch was 1.375. Each protocol collected 6 images and reconstructed into images with 1.25 mm-thickness. Circular ROI with area of around 3 000 mm2 was put in the middle, front, back, left and right of the water phantom, respectively on AW4.5 workstation. CT value and SD value of two groups were measured on the 70 keV monochromatic image. And water-iodine concentration and SD value were measured on the water-iodine concentration image. Independent-samples t test was used for statistical analysis. Results: There were statistical differences of CT value and SD value between group M and L(P＜0.05)． CT value of group M((3.07±1.49) HU) was less than that of group L((2.11±2.47) HU), closer to the gold standard. SD value of group M was bigger than group L. There was a significant difference of water-iodine concentration between group M and L(P＜0.05)． The SD value of water-iodine concentration was significantly lower than that of CT value between group M and L(P<0.001). Conclusion: The CT value and water-iodine concentration can be affected by scanning field of view. And medium scanning field is better than large scanning field. Compared with conventional CT, the change of scanning field has less effect on spectral CT which can be more accurate for quantitative analysis.
		2016 Vol. 27 (7): 512-515 [Abstract] ( 728 ) HTML (1 KB) PDF (0 KB) ( 449 )

	515	Diagnosis of rhabdomyosarcoma in the left thigh of a fetus by ultrasound: report of one case
		SONG Yan-peng, LI Jie, YU Hai-yan

		2016 Vol. 27 (7): 515-515 [Abstract] ( 639 ) HTML (1 KB) PDF (0 KB) ( 191 )

	516	Progress of ultrasound in predicting prognosis of congenital diaphragm hernia
		ZENG Zhao-xi, XIE Li-mei
		Congenital diaphragmatic hernia(CDH) belongs to congenital fetal diaphragmatic defect or insufficiency of development. It is due to the disclosure of diaphragm during embryonic period, leading to unilateral or bilateral diaphragmatic defects and abdominal organs enter the chest through the defects. Based on a large number of domestic and foreign related research literatures, several methods for prediction of fetus survival with CDH were summarized. At present, fetal lung-head ratio, fetal lung volume, fetal lung volume and fetal weight ratio, the size of the liver in the chest detected by ultrasound or MRI and associated genetic testing are the main methods to assess fetal prognosis. This will play a significant role in guiding the diagnosis, prognosis evaluation, perinatal intervention therapy and postpartum surgery for CDH.
		2016 Vol. 27 (7): 516-518 [Abstract] ( 750 ) HTML (1 KB) PDF (0 KB) ( 230 )

	519	MRI characteristics of intracranial nonneoplastic tumor-associated cysts
		LIU Xian-zhi1, WU Xiao-dong2, LIU Song2, LIU Xue-jun2, LI Ying2

		2016 Vol. 27 (7): 519-521 [Abstract] ( 667 ) HTML (1 KB) PDF (0 KB) ( 232 )

	522	Sonographic diagnosis of abnormal intrauterine membranes during the second and third trimester
		CHEN Xiu-juan, ZENG Xue-yi, LIANG Xiao-qin, JIANG Huo-yong

		2016 Vol. 27 (7): 522-524 [Abstract] ( 706 ) HTML (1 KB) PDF (0 KB) ( 227 )

	525	Bilateral qaramedian thalamic infarcts and differential diagnosis: report of one case and differential diagnosis
		LI Chun-xing, FU Yi-gang, FANG Yi, ZHOU Yi

		2016 Vol. 27 (7): 525-526 [Abstract] ( 748 ) HTML (1 KB) PDF (0 KB) ( 179 )

	526	Misdiagnosis of leiomyosarcoma as hematoma by ultrasound: report of one case
		REN Bo, GU Peng

		2016 Vol. 27 (7): 526-527 [Abstract] ( 681 ) HTML (1 KB) PDF (0 KB) ( 215 )

	528	Active pulmonary tuberculosis accompanied with analogous paraneoplastic neurological syndromes: report of one case
		CHEN Ze-le, YIN Ji-lin, WANG Xin-lu, WANG Cheng, JIANG Li-sha, TAN Si-ting, HUANG Wei-yao

		2016 Vol. 27 (7): 528-529 [Abstract] ( 671 ) HTML (1 KB) PDF (0 KB) ( 225 )

	530	Sonographic findings of pancreatic pseudocyst infection with celluitis: report of one case
		YANG Wei-qing, LIU Yang, ZHANG Tong-di

		2016 Vol. 27 (7): 530-530 [Abstract] ( 739 ) HTML (1 KB) PDF (0 KB) ( 223 )

	531	Peripheral primitive neuroectodermal tumor of sacral vertebrae: report of one case
		ZHANG Lang1, ZHANG Juan1, LI Pei-ling2, ZHANG Xue-hua1, ZHAI Zhao-hua1

		2016 Vol. 27 (7): 531-532 [Abstract] ( 708 ) HTML (1 KB) PDF (0 KB) ( 243 )

	532	Ultrasonic diagnosis of cryptorchidism in infant parasitus: report of one case
		GUO Dan-yang1, WU Ming-jun1, CHENG Wen2

		2016 Vol. 27 (7): 532-532 [Abstract] ( 691 ) HTML (1 KB) PDF (0 KB) ( 257 )

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