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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

2017 Vol. 28, No. 12 Published: 2017-12-20

	837	Analysis and comparison between MRI findings of rhabdoid meningioma and literature review
		TANG Wen-bing, XIAO Hui, CHEN Zi-qian
		Objective: To study the MRI findings of rhabdoid meningioma in order to improve the diagnostic rate and reduce misdiagnosis. Methods: A retrospective analysis of 2 rhabdoid meningiomas confirmed by surgery and pathology, combined with 9 cases reported in the literature, were studied. Results: Among the 11 cases of rhabdoid meningioma, 7 of them were female, 4 of them were male. Eleven tumors were solitary, 7 of them were cystic, and 4 of them were mixed. The solid part of tumor mainly showed equal signal in T1WI, while in T2WI it showed slightly hyperintensity. The cystic part of tumor showed hypointensity in T1WI and hyperintensity in T2WI. Two rhabdoid meningiomas showed uniform enhancement, 9 cases showed inhomogeneous enhancement. Six tumors presented with dural tail sign. Five of them showed peritumoral vascular tortuosity and flow void signal. While 6 of them showed peritumoral edema. Pathology revealed by most of rhabdomyoblasts like tumor cells constitute. The tumor tissues were easily found by necrosis, hemorrhage and vascular. Conclusion: The rhabdoid meningioma showed solid or cystic appearance on MRI, is characterized in or around the tumor showed low signal void shadow and peritumoral edema in different degree, but because of the lack of specific feature, the final diagnosis depends on pathological examination.
		2017 Vol. 28 (12): 837-840 [Abstract] ( 887 ) HTML (1 KB) PDF (0 KB) ( 159 )

	841	The diagnostic analysis of apical hypertrophic cardiomyopathy with left ventricular opacification
		LI Ying
		Objective: To improve the contrast of myocardium and cardiac cavity by left ventricular opacification, and to diagnose and evaluate apical hypertrophic cardiomyopathy. Methods: We selected 21 patients clinically suspected of apical hypertrophic cardiomyopathy with abnormal change of electrocardiogram, excluded diseases such as high blood pressure, aortic valve disease and so on which may cause secondary myocardial hypertrophy. There was no other segmental myocardial abnormal thickening of the change in the two-dimensional echocardiography imaging, only the apex of heart was not clear by image display forthe near field artifacts and acoustic window limit, gas interference or by reason of patients with obesity caused. Twenty-one cases of patients undergoed left ventricular opacification, organized and analysis the images. Twenty patients without heart disease as a normal control group. Results: Twenty-one cases of patients with imaging process did not feel any discomfort. The ultrasound imaging of left ventricular opacification success showed apex of 20 cases(95.2%). Including 2 cases of apex of myocardial no obvious thickening, 18 patients with apical myocardial thickening, thickness of about 14~17 mm. The apical apical segment of the myocardium with a radial distribution of a large number of trabeculae and deep recess filled with contrast media. After left ventricular opacification, we can clearly observe that the left ventricular apex of the left ventricle is obviously narrowed or even completely occluded. One case(4.8%) patients with left ventricular ejection fraction, contrast agent fails to reach the apex, failed to development. There was no significant difference between EF and control group in apical hypertrophic cardiomyopathy, but EDV and ESV were significantly lower than those in control group. Conclusion: Left ventricular opacification can increase the diagnostic accuracy of apical hypertrophic cardiomyopathy by improving the clarity of the cardiac ultrasound image, measuring the thickness of the apical myocardium accurately, and judging the change of the cardiac cavity size.
		2017 Vol. 28 (12): 841-843 [Abstract] ( 792 ) HTML (1 KB) PDF (0 KB) ( 176 )

	844	Preliminary study of vascular factors in venous thrombosis associated with arteriovenous fistula of lower limbs
		GUO Chang-xu, YUAN Yu, WEI Yao, WAN Xin, GAO Jin-mei
		Objective: Analysis of related factors of lower extremity venous thrombosis complicated with arteriovenous fistula by color Doppler ultrasound. Methods: We retrospectively analyzed 25 patients of lower extremity venous thrombosis complicated with arteriovenous fistula from June 2015 to December 2016, which diagnosed by ultrasound, 12 cases of male, 13 cases of female, and involved a total of 31 segmental vascular lesions. Recording the location of the venous thrombuosis with arteriovenous fistula, the number, internal diameter and RI of the neovascularization in the thrombosis of the arteriovenous fistula vascular segmental. Results: Hemodynamic changes were only existed in the vascular segment of arteriovenous fistula in 25 cases which with lower extremity venous thrombosis complicated with arteriovenous fistula. The incidence of venous thrombosis complicated with arteriovenous fistula was higher in proximal vascular, 21(21/31) segments of arteriovenous fistula with venous thrombosis exist neovascularization in the thrombosis, the number of the new vessels was 1.71±0.64, the internal diameter of the new vessels was (0.96±0.37) mm. Fourteen(14/21) segments can clearly show the peripheral arteries of the lesion. The RI of the neovascular of the arteriovenous fistula and the peripheral arterioles in the lesions were 0.49±0.07 and 0.67±0.06. There was a significant difference between them(P<0.01). The blood flow direction was from high resistance to low resistance. Ten(10/31) segments have no neovascular in the venous thrombosis complicated with arteriovenous fistula. Conclusions: The proximal extremity of the lower limb is more likely to have venous thrombosis, arteriovenous fistula is not easy to cause extensive changes in limb venous hemodynamics. Some of the new vessels are directly involved formation of the arteriovenous fistula in the lower extremity venous thrombosis.
		2017 Vol. 28 (12): 844-846 [Abstract] ( 636 ) HTML (1 KB) PDF (0 KB) ( 325 )

	847	MSCT manifestations and pathological analysis of lung cancer associated with cystic airspaces
		DAI Ping, LIU Yong, HE Qi-zhou, YANG Qin, GAN Zhong-hua
		Objective: To evaluate Multi-slice computed tomography features and pathological basis of lung cancer associated with cystic airspaces, and to improve understanding of such kind of lesions and to improve diagnostic accuracy. Methods: Eighteen cases surgery pathologically confirmed lung cancer associated with cystic airspaces were retrospectively analyzed with regard to Multi-slice computed tomography features and compared with pathology. Results: There were 18 cases(peripheral lung cancer, 17 adenocarcinoma, 1 squamou carcinoma). Common CT signs: lung cancer with cyst, thin or thick and unsmooth cystic wall. The lesion was predominant cysts in 5 cases, cysts and ground-glass nodule mixed lesions in 2 cases, cysts with ground-glass nodule and solid mixed lesions in 3 cases, cysts and solid mixed lesions in 8 cases. Cysts with mural nodules, septum and blood vessel passing were 61.1%, 66.7% and 11.1% respectively. Lobulation sign and speculation sign were 50% and 55.6% respectively. Vascular convergence sign and pleural indentation sign were 38.9% and 50% respectively. One lesion showed ground-glass opacity in cyst in dynamic follow-up. The cyst cavity gradually increased and cystic wall irregular thicken in one case. Three lesions showed decreased size of the cyst and enlarged nodules. Cyst with ground-glass nodule and solid mixed lesions in one case developed to cyst with solid mixed. Conclusion: The features of lung cancer associated with cystic airspaces have certain characteristics, dynamically follow-up analysis the shape of the cyst cavity and surrounding performance is helpful for diagnosis.
		2017 Vol. 28 (12): 847-850 [Abstract] ( 698 ) HTML (1 KB) PDF (0 KB) ( 337 )

	851	Feasibility of differentiating pre-invasive and invasive lesion appearing as ground-glass nodule based on CT features: a clinical study
		WU Guang-yao, WANG Ke-xin, SU La, WU Jian-lin
		Objective: To analyze the CT features in differentiating pre-invasive and invasive lesion appearing as ground-glass nodule(GGN) retrospectively and obtain signs of discrimination. Methods: A total of 122 cases of GGNs were confirmed by pathology, 57 cases were pure GGNs and 65 cases were part solid GGNs. Seventy-one cases of invasive lesions, including 13 cases of atypical adenomatous hyperplasia(AAH) and 58 cases of adenocarcinoma in situ(AIS); invasive lesion in 51 cases, including 39 cases of minimally invasive adenocarcinoma(MIA) and 12 cases of invasive adenocarcinoma(IAC), we analyzed the difference between two groups of CT characteristics, ROC curve was used to identify the two groups of the best cut-off values. Results: In pure GGNs, size and lobulation were significant(P<0.05) and the cut-off of average diameterwas 11.82 mm, sensitivity and specificity were 73% and 87%. In part solid GGN, average diameter, solid proportion grade, lobulation, speculation and pleural retraction were statistically significant(P<0.05) and the cut-off value for average diameter in invasive lesion was 12.5 mm, sensitivity and specificity were 75% and 80%. Conclusion: The CT features could be used to pre-assess pre-invasive and invasive lesion appearing as GGN, the important factors are mainly reflected in the average diameter of GGN lesions, solid components and edge signs.
		2017 Vol. 28 (12): 851-854 [Abstract] ( 839 ) HTML (1 KB) PDF (0 KB) ( 202 )

	855	CT and MRI image characteristics of the liver mucinous cystic tumors
		NI Li-xin, LOU Xiao-jian, HE Ping, YU Gao-long
		Objective: To investigate the liver mucinous cystic neoplasm of CT, MRI image characteristics. Methods: Retrospective analysis of our hospital from January 2011 to June 2016, there were five cases confirmed by surgery of the liver mucinous cystic neoplasms, preoperative CT and(or) 1.5T MRI plain scan and enhanced scan, MRCP scan. Results: Five cases of liver cystic mucinous neoplasms were benign, CT and MR scan showed tumors were round single room separated more like cystic lesions, edge finishing, more uniform wall thickness or partition, the partition may have calcification, and the partition wall reinforcing mild to moderate enhancement, the sub-room tumor cyst fluid density or signal is not exactly the same, no capsule solid components or mural nodules, tumors and intrahepatic bile ducts are not the same, around structure under pressure to change. Conclusion: Hepatic mucinous cystic neoplasm in CT and MRI have a certain characteristic. The main appearance is multiple cystic lesions, thin and smooth wall, enhancement of cystic wall and septa, without connecting of bile duct, and compression of surrounding tissues and organs.
		2017 Vol. 28 (12): 855-857 [Abstract] ( 1471 ) HTML (1 KB) PDF (0 KB) ( 356 )

	858	The value of ultrasound in clinical diagnosis and treatment of Peutz-Jeghers syndrome
		TIAN Qing, ZHU Hao-hui, YUAN Jian-jun, LI Hui
		Objective: The aim of this paper was to improve the awareness of sonographers to characteristics of polyps and secondary changes of Peutz-Jeghers syndrome(PJS). Methods: A retrospective analysis was made to the ultrasound, clinical data and postoperative pathologies of 6 cases of PJS in our hospital from February 2012 to April 2016. Results: Six cases of polyps caused by PJS and 3 cases of intussusception caused by polyps were found in the small intestine by ultrasound compared with the findings during the operations. Conclusions: Ultrasound is a more effective means for the diagnosis of polyps caused by PJS, because it can evaluate the polyp characters, observe intussusception and intestinal obstruction caused by polyps, assess the overall situation in the abdomen. Ultrasound provides a reliable basis for clinical diagnosis and treatment for its simple, non-invasive and real-time.
		2017 Vol. 28 (12): 858-860 [Abstract] ( 645 ) HTML (1 KB) PDF (0 KB) ( 229 )

	861	Sonography coupling gel filling and ultrasonic elastography this new technology application in colorectal cancer staging
		JIANG Gui-yan1, ZHANG Ying-xia2
		Objective: Probe into the new technology of coupling gel filling and ultrasonic elastography in colorectal cancer staging’s feasibility, veracity and application value. Methods: From October 2013 to October 2014, the object of 36 patients who was colorectal cancer proctoscopy pathology confirmed intend to operative treatment is the main study, for sonography coupling gel filling ultrasonic testing, for T staging(with UT), and for making an evaluation of goiter real-time ultrasound elastography, through the retrospective analysis of ultrasonic T stage(with EUT), the postoperative pathological staging as the gold standard, analysis of two methods to colorectal cancer staging of accuracy, sensitivity and specificity is statistically significant or not. Analyze elasticity imaging and colorectal cancer staging of pertinence and sensitivity. Result: This group of cases operation pathology confirm that is colorectal cancer, on preoperative UT and EUT respectively with postoperative pathologic stage T staging consistency check, show all have good consistency(P＜0.05). The overall accuracy of the EUT to colorectal cancer staging, high sensitivity, specific degrees from UT, EUT compare UT can obviously reduce the error of low time, the difference is statistically significant(P<0.05), EUT on the diagnostic coincidence rate of progress is UT has improved significantly, the difference is statistically significant(P<0.05). Conclusion: Sonography coupling gel filling and ultrasonic elastography is a new method for evaluation of preoperative staging of colorectal cancer, is superior to the conventional intracavitary ultrasonic preoperative staging of colorectal cancer, is an effective supplementary means for preoperative evaluation of colorectal cancer staging.
		2017 Vol. 28 (12): 861-864 [Abstract] ( 621 ) HTML (1 KB) PDF (0 KB) ( 306 )

	865	MRI appearances of solitary fibrous tumor in pelvis
		LIU Jie, CHENG Jing-liang, GAO Xue-mei, ZHANG Yong
		Objective: To analyze the MRI findings of solitary fibrous tumor in pelvis. Methods: The MRI features of 5 cases of solitary fibrous tumor in pelvis proved by surgery and pathology were investigated retrospectively. Image characteristics were analyzed. Results: There were 6 lesions in the 5 cases with two lesions in one case. The shape of tumors showed round-like(n=4) and irregular(n=2). ALL lesions were found as well-defined masses. They were mostly hypointense and isotense to the muscle on T1 weighted images and heterogeneous and hyperintense on T2 weighted images. Intra-tumoral flow voids was seen(n=1). After gadolinium administration, the tumors were strongly heterogeneous enhancement(n=3) and mildly heterogeneous enhancement(n=1), one of which was free of contrast enhancement. Conclusion: MRI findings of solitary fibrous tumor in pelvis have some features, preferring to single solitary lesion. MR signals within the tumors were mixed with multiple tubercles, and strongly heterogeneous enhancement after contrast injection. All the findings could suggest the diagnosis of this disease.
		2017 Vol. 28 (12): 865-868 [Abstract] ( 817 ) HTML (1 KB) PDF (0 KB) ( 163 )

	869	The diagnostic value of superb microvascular imaging in bladder occupied lesions
		LIU Qi-ping1, WANG Yan2, CHEN Hong-yan1
		Objective: To discuss the diagnostic value of superb microvascular imaging(SMI) in bladder occupied lesions. Methods: Forty-four bladder occupied lesions in 32 cases founded by conventional ultrasound were analyzed retrospectively. All the lesions were examined by color Doppler flow imaging(CDFI), power Doppler(PD), advanced dynamic flow(ADF) and SMI respectively. The differences between these 4 blood flow display technologies in displaying blood flow and basal perforator vessels in bladder occupied lesions were compared with surgical pathological results. Results: There were 39 bladder cancers and 5 glandular cystitis lesions in 44 lesions of 32 cases. The blood flow display rate of SMI in diagnosing bladder occupied lesions was 100%, which was obviously higher than CDFI(77.3%), PD(81.8%), ADF(84.1%). The basal perforator vessels display rate of SMI was 84.1%, which was also obviously higher than CDFI(43.2%), PD(47.7%), ADF(56.8%). All these results had significant statistical differences(P<0.001). Conclusions: SMI can increase the display rates of blood flow and basal perforator vessels of bladder occupied lesions and it has high diagnostic value in differential diagnosis of benign and malignant bladder occupied lesions.
		2017 Vol. 28 (12): 869-871 [Abstract] ( 650 ) HTML (1 KB) PDF (0 KB) ( 470 )

	872	The value of multimodal MRI in evaluating the efficacy of radiotherapy for cervical cancer
		WANG Wei-qing1, WU Xia1, FU Bao-cheng1, HUANG Yong2, CAO Guang-hui1
		Objective: To investigate the value of multimodal MRI in the evaluation of the efficacy of radiotherapy for cervical cancer. Methods: We selected 44 cases of biopsy confirmed cervical cancer patients with radiation therapy as observation group, and 15 cases of healthy women(cervical lesions were not found in gynecological and ultrasound) as control group. All patients underwent conventional MRI, DWI(b value of 800 s/mm2) and dynamic enhanced MRI. Then we analyzed the dynamic curve, early enhancement rate, average ADC value and minimum ADC value. Results: The average ADC value of observation group was (1.078±0.242)×10-3 mm2/s, minimum ADC value was (0.939±0.093)×10-3 mm2/s. The results of two groups were statistically significant(P<0.05). After radiotherapy, the minimal ADC value was (1.002±0.011)×10-3 mm2/s of the residual tumor group(before radiotherapy), and the minimum ADC value was (0.863±0.078)×10-3 mm2/s of the residual tumor group(before radiotherapy) were statistically significant(P<0.05) in the two groups. The minimum ADC value of radiotherapy group was (0.939±0.093)×10-3 mm2/s, the minimum ADC value was (1.368±0.113)×10-3 mm2/s after radiotherapy, there was significant difference between the two groups(P<0.05). The mean ADC value of the normal group was (1.873±0.027 4)×10-3 mm2/s, and the minimum ADC value was (1.368±0.113)×10-3 mm2/s after radiotherapy in the radiotherapy group, the difference was statistically significant(P<0.05). The early enhancement rate of normal cervix was about 3%, and the early enhancement rate of cervical cancer radiotherapy group was about 55.57%, the difference between the two groups was statistically significant(P<0.05). The early enhancement rate after radiotherapy was about 10.46%, which was significantly different from that before radiotherapy(P<0.05). The time-signal intensity curve(TIC) of the normal group showed an inflow pattern. The TIC of cervical cancer radiotherapy group was mostly platform type(40/44), and most of them were inflow type(38/44) after radiotherapy. The difference between the two groups was statistically significant(P<0.05). Conclusion: The minimum ADC value, early enhancement rate analysis, semi quantitative TIC curve of cervical cancer before and after radiotherapy by multimodal MRI have very important clinical significance and value in the evaluation of diagnosis and treatment of cervical cancer.
		2017 Vol. 28 (12): 872-876 [Abstract] ( 945 ) HTML (1 KB) PDF (0 KB) ( 164 )

	877	Value of the second contrast sonography in assessing the fallopian tube patency
		GUO Yu-juan, WANG Rui-li, ZHU Zhao-ling, LIU Bing-bing
		Objective: To evaluate the value of the second ultrasound contrast sonography in the assessment of fallopian tube patency. Methods: Eighty infertile women, who have been subjected to transvaginal real-time three-dimensionnal hysterosalpingo-contrast sonography(TVS RT-3D-HyCoSy) and shown at least one side of fallopian tube was obstructed, or part of fallopian tube imaging data were missed, were selected and subjected to the second ultrasound contrast sonography, and forty cases among them were subjected to hydrotubation under the Hysteroscopy-laparoscopy. The Hysteroscopy-laparoscopy results were used as the golden standard to compare the differences between the first contrast sonography and the second contrast sonography in assessing the fallopian tube patency, and analyze the distribution of the side effects in the two contrast sonography among the selected eighty cases. Results: ①There were significant differences in the diagnosis of fallopian tube patency between the first and the second contrast sonography(P=0.045). ②No severe side effect was observed during the two contrast sonography, and there was no significant difference in side effects score between the two groups(P=0.773). Conclusion: The second contrast sonography is necessary for the infertile women shown at least one side of fallopian tube was obstructed or part of fallopian tube imaging data were missed in the TVS RT-3D-HyCoSy without aggravating the side effects of patients.
		2017 Vol. 28 (12): 877-880 [Abstract] ( 594 ) HTML (1 KB) PDF (0 KB) ( 431 )

	881	Analysis on the sonographic characteristics of gossypiboma of the uterine isthmus after caesarean section in 55 patients
		LI Xiao-hua, FAN Dong-chen, LIU A-qing, GUO Jing, WANG Ting, WANG Shao-chun
		Objective: To investigate the ultrasound characteristics and improve the ultrasound diagnosis of gossypiboma of the uterine isthmus caused by uncomplete absorption of the gauze after applying absorbable hemostatic gauze in cesarean section. Methods: From July 2011 to July 2016, 55 patients with masses in front of the lower segment of the uterus by ultrasound as well as results of gossypibomas by histopathology were enrolled in the study, whose sonographic features were reviewed retrospectively. Results: Sonography showed the lesion in the adjacent front of the anterior wall of the uterus in 55 patients. Forty(72.7%) masses appeared low echo, 15(27.3%) masses appeared mixed echo. Fifty(90.9%) appeared with threadlike or small patchy echogenic area. Color Doppler flow image showed no obvious blood flow in 50 cases(90.9%), but with minimal blood flow on the peripheral of the mass in 5 cases(9.1%). Conclusions: Gossypiboma related to absorbable hemostatic gauze after cesarean section may appear low or mixed echo by ultrasound. Threadlike echogenic area is typical ultrasonic feature. The radiologist may be alerted to the correct diagnosis combining with the surgical records.
		2017 Vol. 28 (12): 881-884 [Abstract] ( 579 ) HTML (1 KB) PDF (0 KB) ( 271 )

	885	Assessment of the ischiofemoral space and the correlated factors with MRI
		GUO Jia-chuan1, LIU Ying2, CHEN Jia-yuan1, YIN Long-lin1, WU Xiao-yun1, LI Ying-chun1
		Objective: To discuss the relationship between the ischiofemoral space(IFS) and elements such as age, gender, intertuberous diameter, the femoral neck angle in asymptomatic population by using MRI. Methods: A total of 46 asymptomatic volunteers(24 with male, 22 with famale) with 1.5T MRI were selected in our hospital from April to October 2016. Age, gender, IFS, intertuberous diameter and other data of volunteers were measured and recorded. Results: The mean width of IFS and femoral neck long axis was(23.30±6.77) mm, (80.54±6.78) mm, respectively. These data of women were lower than that of men(P<0.05). The mean intertuberous diameter and ischial angle was (98.91±13.52) mm, (131.02±4.51)°, respectively. These data of women were higher than that of men(P<0.05). The angle of femoral neck was (17.79±4.20)°, and these data were no significant difference between male and female(P＞0.05). There was a negative correlation between IFS and age, intertuberous diameter, ischial angle, femoral neck angle, and there were a positive correlation between IFS and femoral neck long axis, and there were no correlation between IFS and height, weight. Conclusions: The pelvis differences between women and men may be the cause of ischiofemoral impingement occurring more frequently in women. The width of IFS has gradually decreased with age increased.
		2017 Vol. 28 (12): 885-887 [Abstract] ( 708 ) HTML (1 KB) PDF (0 KB) ( 280 )

	888	Evaluation of emergency transjugular intrahepatic portosystemic shunt in the treatment of variceal bleeding in liver cirrhosis
		MA Yu-jia, GONG Zheng, CHI Yuan, ZHENG Jia-he, LIU Zhao-yu, GUO Qi-yong
		Objective: To investigate the safety and efficacy of emergency transjugular intrahepatic portosystemic shunt(TIPS) in the treatment of esophageal and gastric variceal bleeding(EGVB) in liver cirrhosis and portal hypertension. Methods: The clinical data of 14 EVGB patients with liver cirrhosis and portal hypertension who undergoing emergency TIPS were retrospectively analyzed. The haemostasis, hepatic vein pressure gradient(HVPG), liver function, complications, rebleeding and in-stent occlusion were observed. The paired-samples t-test was performed for measurement data. Results: All emergency TIPS of the 14 patients were successful. There was no perioprative serious complication. The HVPG dropped from (38.9±9.0) cm H2O to (19.1±7.0) cm H2O(P<0.001). There was no significant difference in liver function between before and after operation. The bleeding stopped in 72 hours after operation in all patients． There was no rebleeding occurred during 3~12 months followed-up, one patient died of perforation of stomach, one patient underwent liver transplantation, and 2 patients had mild hepatic encephalopathy. There was none in-stent occlusion assessed by ultrasound and computed tomography during follwed-up. Conclusion: The emergency TIPS is safe and effective in the treatment of acute EGVB in cirrhotic patients with portal hypertension．
		2017 Vol. 28 (12): 888-892 [Abstract] ( 944 ) HTML (1 KB) PDF (0 KB) ( 371 )

	893	Development of magnetic resonance imaging in development dysplasia of hip
		LIU Ling-ling, GAO Yue, LI Qi, MENG Yan, PAN Shi-nong
		Developmental dislocation of the hip(DDH) is one of the most common deformities in children, the incidence is high, early diagnosis and treatment of great significance. For a long time, the diagnosis and treatment of DDH mainly depended on the pelvic X-ray film examination, and the pathological changes of DDH were complicated. In addition to the changes of bony structure, the changes of cartilage, soft tissue and ligament are more and more valued. Hip joint is a complex structure that needs to be evaluated in three dimension. Therefore, the traditional X-ray film provides the clinical information appears to be very limited. In recent years, ultrasound, CT, MRI and other imaging technology development is very rapid. Since the application of MRI, it has shown great advantages in the research, diagnosis and treatment of DDH.
		2017 Vol. 28 (12): 893-896 [Abstract] ( 610 ) HTML (1 KB) PDF (0 KB) ( 406 )

	896	Progress in the application of neurite orientation dispersion and density imaging
		XUE Bing, YU Bing, HUANG Ming-zhu, ZHANG Xu, YOU Yi
		The diffusion magnetic resonance imaging(dMRI) can provide the information of diffusion properties of water molecules in biological tissue, is the only noninvasive technique which can detect whiter matter microstructure. Neurite orientation dispersionand density imaging(NODDI) is a new technique which expands from diffusion magnetic resonance imaging, and has been demonstrated to be highly sensitive and specific in detecting the microstructure of biological tissues in vivo and providing an effective means for the study of central nervous system disorders. This article will review the principle of NODDI and its clinical application in neural system.
		2017 Vol. 28 (12): 896-898 [Abstract] ( 713 ) HTML (1 KB) PDF (0 KB) ( 549 )

	899	Diagnosis of hepatocellular adenomas on gadoxetic acid-enhanced MRI（report of 2 cases and review of literature）
		TANG Min, CHEN Jun, HAN Peng, ZHANG Qing-lei, HE Jian, QIU Yu-dong, DOU Xin, ZHU Bin

		2017 Vol. 28 (12): 899-902 [Abstract] ( 683 ) HTML (1 KB) PDF (0 KB) ( 302 )

	902	Comparative analysis of preoperative TN staging of middle and low rectal carcinoma by contrast-enhanced ultrasonography and contrast-enhanced CT
		YU Ying-jiao, YANG Yue-e, WANG Qi

		2017 Vol. 28 (12): 902-904 [Abstract] ( 685 ) HTML (1 KB) PDF (0 KB) ( 482 )

	905	Spontaneous rupture and hemorrhage of brain betastasis from hepatocellular carcinoma: report of one case
		REN Jin-wu, MA Cong-min, ZHANG Li-hong

		2017 Vol. 28 (12): 905-906 [Abstract] ( 807 ) HTML (1 KB) PDF (0 KB) ( 254 )

	906	Breast sclerosing adenosis misdiagnosed as breast cancer: report of one case
		RUAN Mei, CHEN Wen-hui

		2017 Vol. 28 (12): 906-907 [Abstract] ( 1051 ) HTML (1 KB) PDF (0 KB) ( 358 )

	907	Calcified gastric carcinoma and liver metastic calcifications: report of one case
		WEI Qing-shun, CHEN Li-jun, CHENG Man-ping, ZHENG Yin-wen, YANG Xiao-ping

		2017 Vol. 28 (12): 907-908 [Abstract] ( 675 ) HTML (1 KB) PDF (0 KB) ( 424 )

	909	Gallbladder sarcomatoid carcinoma: report of one case
		CHEN Zhi-wei, XIAO You-gui, CHEN Jian-long

		2017 Vol. 28 (12): 909-910 [Abstract] ( 639 ) HTML (1 KB) PDF (0 KB) ( 127 )

	910	Diagnosis of splenic implantation by ultrasound guided percutaneous biopsy of omental masses: report of one case
		YANG Pu-xu, WANG Xue-mei, TAO Chun-mei, CHEN Bo, BIAN Dong-lin

		2017 Vol. 28 (12): 910-911 [Abstract] ( 475 ) HTML (1 KB) PDF (0 KB) ( 270 )

	911	Vesico sigmoid colon fistula: report of one case
		ZHANG Wan-lei, ZHANG Shan-shan, FAN Wen-ting

		2017 Vol. 28 (12): 911-912 [Abstract] ( 881 ) HTML (1 KB) PDF (0 KB) ( 376 )

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