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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
2013 Vol. 24, No. 5
Published: 2013-05-20
 
       论著
305 CT and MRI findings of central neurocytoma and extraventricular neurocytoma
TANG Le-mei;NING Dian-xiu;NIU Tian-li;ZHENG Cheng-cheng;WU Jian-lin;LANG Zhi-jin;MIAO Yan-wei
DOI:
Objective: To study the CT and MRI characteristics of central neurocytoma(CNC) and extraventricular neurocytoma(EVN)． Materials and Methods: The imaging findings of 7 CNC and 2 EVN were analyzed retrospectively, and all cases were proved by operation and pathology. The lesions’ location, shape, size, boundary, signal intensity, cystic degeneration, calcification, enhancement characteristics, and the presence of flow-void sign were analyzed. Results: Seven CNC tumors were all located in the lateral ventricles, and the septum pellucidum were not shown or displaced． The lobular tumors are all hyperintense on CT plain scan, hypointense or isointense on T1WI and isointense on T2WI, with different size of cystic degeneration in 5 cases, striatal or gross calcification in 6 cases, and flow-void sign in 4 cases. The tumors demonstrated mild to moderate inhomogeneons enhancement after contrast administration． Two EVN centered in frontal or parietal lobe, with irregular or lobular shapes and ill-defined boundary. The 2 cases were all cyst-solidary mass, with uneven cystic wall and mural nodule, and demonstrated moderate to intense inhomogeneons enhancement after contrast administration. Two cases all demonstrated haemorrhage within the tumor, and one case presented flow-void sign. Conclusion: CNC are charicteristic on CT and MRI． EVN should be considered when a cerebral parenchymal tumor with cystic necrosis, hemorrhage and mural nodule is encountered in younger patients.
2013 Vol. 24 (5): 305-308 [Abstract] ( 815 ) HTML (0 KB)  PDF  (0 KB)  ( 240 )
309 Pleomorphic xanthoastrocytoma: a report of 5 cases with MRI analysis and literature review
KANG Hou-yi;LIU Cai-bao;LI Xiao-guang;ZHANG Yu-long;ZHANG Wei-guo
DOI:
Objective: To investigate the features and clinical application of MRI on pleomorphic xanthoastrocytoma. Methods: The conventional and functional MRI of five cases with pleomorphic xanthoastrocytoma confirmed by surgery and pathology were analyzed retrospectively. Results: Four cases showed solid and cystic lesions in the cortical-subcortical regions and one case showed insular cortex solid mass, most of which were surrounded by mild edema. Moreover, the mural nodule lesions or solid mass was obviously enhanced. DWI revealed low signal, PWI showed increased perfusion value (rCBV value of 2.96±0.64), and MRS showed that the Cho/NAA peak ratio(2.03±1.08) and Cho/Cr peak ratio(1.77±0.69) were elevated, however, the NAA/Cr peak ratio was decreased(0.94±0.38). The follow-up observation revealed that only one case with malignant signs in imaging findings had recurrence, and the prognosis of the other patients was good. Conclusions: Conventional and functional MRI have characteristics for pleomorphic xanthoastrocytoma diagnosis, and functional imaging may provide a prognostic information. To understand the features correctly may improve the diagnostic accuracy and guide the clinical treatment for pleomorphic xanthoastrocytoma.
2013 Vol. 24 (5): 309-313 [Abstract] ( 733 ) HTML (0 KB)  PDF  (0 KB)  ( 197 )
314 MR perfusion in the evaluation of crossed cerebellar diaschisis
LIN Ya-nan;CHENG Jing-liang;ZHANG Yong;SUN Meng-tian;WANG Lin-lin;BAI Jie;WANG Fei-fei
DOI:
Objective: To determine the mechanism and influencing factors of crossed cerebellar diaschisis(CCD) observed in acute stroke with MR perfusion weighted imaging(PWI). Methods: Collections of PWI and diffusion weighted image(DWI) information of 41 patients, infarct volume on DWI and cerebral blood flow(CBF), cerebral blood volume(CBV), time to peak(TTP) and mean transit time(MTT) of the contralateral cerebellum were comparatively analyzed with those of the opposite healthy hemicerebrum and hemicerebellum. Results: Infarct volume on DWI in the CCD patients are significantly larger than that of the non-CCD patients(P<0.05). Of the CCD patients, CBF of the contralateral cerebellum is substantially reducted compared to that of the opposite hemicerebellum(P<0.05), TTP of the contralateral cerebellum is substantially prolonged than that of the opposite hemicerebellum(P<0.05), but there is not statistically significant changes in CBF and MTT between the two hemicerebellum(P>0.05). Conlusion: PWI is useful for studying the occurring and the influencing factor of CCD after supratentorial infarct.
2013 Vol. 24 (5): 314-316 [Abstract] ( 818 ) HTML (0 KB)  PDF  (0 KB)  ( 217 )
317 MR T2 mapping in differentiating carcinoma and benign lesions of breast: a clinical study
MENG Fan-xing;LU Zai-ming;YU Bing;ZHANG Wei;GUO Qi-yong
DOI:
Objective: To evaluate the usefulness of MR T2 mapping in differentiating breast carcinoma from benign lesions. Materials and Methods: MR T2 mapping data was obtained from 13 lesions of breast carcinoma and 13 lesions of breast benign lesions. The mean value(μ) and standard deviation(σ) of T2 values in the lesions were measured. The coefficient of variance(CV) of the lesion was defined as CV＝σ/μ. The μ values and CVs were compared in the two groups. The receiver operating characteristic(ROC) curve was used to evaluate the diagnostic value of μ values and CVs of T2 values for breast carcinoma, and then determine the cut-off point. Result: There were no obvious differences between the mean value of breast carcinoma and breast benign lesions(t=1.164, P=0.256). There were statistically difference between CVs of breast carcinoma and breast benign lesions(t=6.203, P=0.000). When ROC analysis of the CVs of T2 values of breast carcinoma as a diagnostic indicator, area under the curve(AUC) is 0.964(AUC>0.9, high diagnostic value), as the cut-off point was 0.145, the diagnosis of breast cancer with this standard, sensitivity is 92.3%(12/13), specificity is 100%(13/13), and the accuracy is 0.962(25/26). When ROC analysis of μ values of T2 of breast carcinoma as a diagnostic indicator, AUC is 0.627(AUC is between 0.5 and 0.7, low diagnostic value). Conclusion: In MR T2 mapping imaging, CV of T2 values of breast malignant lesions is higher than that of benign lesions. The CV of T2 values of breast lesions is more useful than the mean value in distinguishing breast carcinoma from breast benign lesions.
2013 Vol. 24 (5): 317-320 [Abstract] ( 703 ) HTML (0 KB)  PDF  (0 KB)  ( 181 )
321 Multicenter clinical study: the use of X-ray attenuation correction to improve quantitativeanalysis precision for 99mTc-3PRGD2 lung cancer SPECT image
YANG Ai-min;SHI Xi-min;DAI Hao-jie;XIN Jun;ZHAO Xin-min;WANG Zhe;ZHENG Shan;GAO Rui;LI Mei;MIAO Wei-bing;ZHAO Zhou-she;JIA Bing;ZHU Zhao-hui;WANG Jing;WU Wen-kai0;LI Fang
DOI:
Objective: Using X-ray attenuation correction to improve a prospective, multicenter study of 99mTc-3PRGD2 SPECT image quantitative analysis precise in lung patients. Methods: 27 patients, adenocarcinoma of 23 cases and squamous cell carcinoma of 4 cases, diagnosed by pathology. Images of whole body scan and local tomography were obtained after 99mTc-3PRGD2 injection of 40 minutes intravenously. Iterative image reconstruction method was used to obtain the X-ray attenuation correction(CTAC) and no attenuation correction reconstruction(NAC) on the basis of 99mTc-3PRGD2 SPECT images. Total count of the lesions slice, total count, maximum and average count of the region of interest(ROI) were extracted individually from the slices of CTAC and NAC frames. The maximum count 38%, 42% and 48% within ROI were chosed as the threshold to measure the diameter length of CTAC and NAC image focus. Results: The results showed that after CTAC, the total count, of the focus slice was increased 2.09 times, the total count of the ROI was increased 3.32 times, maximum and mean counts and the background ratio were increased by 65.9% and 70.3%, individually. With the maximum count 42% of the lesion ROI as the threshold, the lesions maximum size was of (5.65±2.77) cm after CTAC, which is coincidence with CT measurement results. Conclusion: Using X-ray attenuation correction helps to improve 99mTc-3PRGD2 quantitative analysis.
2013 Vol. 24 (5): 321-324 [Abstract] ( 725 ) HTML (0 KB)  PDF  (0 KB)  ( 193 )
325 The value of contrast-enhanced ultrasound in raising the accuracy of biopsy for multiple liver occupying lesions
SUN Yi-xin;CHENG Wen;YANG Hong-yan;WANG Qiu-cheng;GUO Dan-yang;ZHANG Dan-dan
DOI:
Objective: To evaluate the clinical utility of contrast-enhanced ultrasound(CEUS) in percutaneous liver biopsy of multiple liver lesions. Methods: One hundred and twenty-eight patients with multiple unidentified occupying lesions in liver were randomly divided into two groups: CEUS group in which 62 cases underwent liver biopsy directed by real time grey CEUS, and routine ultrasound(US) group in which 66 patients underwent biopsy guided by conventional ultrasonography. There were 86 males and 42 females, mean aged 53.2(36~74). There was no significant difference in the size of lesions between the two groups. 18 gauge needles were used in biopsy, and then biopsy specimens were sent to pathology department for histological and cytological examination. Acquirement of adequate quantity of specimen for pathological examination meant successful biopsy. Results: The proportion of no more than 2 puncture successful in the CEUS group was significantly higher than that in the US group(P=0.000 2). The accurate diagnosis rate of the CEUS group was 94.7%, significantly higher than that of the US group(84.36%, P=0.029). The accurate diagnosis rate of small malignant lesions in the CEUS group was 96.6%, significantly higher than that in the US group(82.1%). No major complication occurred. Conclusion: Biopsy guided by CEUS is more accurate in diagnosis of malignant nodes and hyperplasia nodes in cirrhosis of liver by the reflection of the blood perfusion of lesions, and can determine the area of activity or the necrosis of malignant tumors accurately. It increased the success rate of biopsy and confirmed diagnosis rate of malignant lesions.
2013 Vol. 24 (5): 325-327 [Abstract] ( 753 ) HTML (0 KB)  PDF  (0 KB)  ( 238 )
328 The risk factors of hepatic failure after transjugular intrahepatic portosystemic stent shunt forprimary hepatocellular carcinoma with portal hypertension
ZHAO Meng-fei;LIU Fu-quan;YUE Zhen-dong;ZHAO Hong-wei;WANG Lei;YAO Jian-nan;ZUO Li;FAN Zhen-hua
DOI:
Objective: To analyze the risk factors which lead primary hepatocellular carcinoma with portal hypertension to hepatic failure after transjugular intrahepatic portosystemic stent shunt(TIPSS). Materials and Methods: From January 2007 to December 2010, a cohort of 69 hospitalized patients diagnosed as primary hepatocellular carcinoma with portal hypertension(refractory variceal hemorrhage and/or refractory ascites) treated with TIPSS were retrospectively studied, and data were abstracted including baseline characteristics of patients and the incidence of hepatic failure. We analyzed the risk factors which lead to hepatic failure by statistical methods. Results: Technical success rate was 100%. 26 cases got hepatic failure in 0.5~47 months after operation, of whom 11 cases got remission after aggressive medical therapy, 15 cases died. After retrospective analysis, we found Child-Turcotte-Pugh(CTP) grading, tumor diameter, the diameter of stent, whether combined with portal vein thrombosis, the time of transarterial chemoembolization(TACE)/hepatic artery embolization(TAE), either a history of surgical excision before TIPSS, or a history of recurrent bleeding and hepatic encephalopathy after TIPSS, were all risk factors. Conclusions: TIPSS can effectively relieve the symptoms of portal hypertension, but it has a risk of hepatic failure. Realized the factors that lead primary hepatocellular carcinoma with portal hypertension to hepatic failure after TIPSS, we can screen patients suitable for TIPSS to get better results.
2013 Vol. 24 (5): 328-333 [Abstract] ( 701 ) HTML (0 KB)  PDF  (0 KB)  ( 202 )
334 A comparative study of image quality and radiation dosage between iterative reconstruction algorithm oflow-dose scans and filtered back project routine-dose scans in hepatic enhanced CT
XU Shu;HOU Yang;GUO Qi-yong
DOI:
Objective: To assess the ability of iDOSE(iDOSE, Philips) iterative reconstruction technique for low-dose hepatic enhanced CT. Materials and Methods: 200 patients with diagnosis of liver tumors were randomly divided into four groups(A, B, C, D). Patients in group A were scanned with routine-dose CT, reconstructed with filtered back projection(FBP). While patients in group B, C, D were scanned with 30%, 50% and 70% radiation dose reduction CT respectively, reconstructed with iDOSE reconstruction. Quantitative noise and contrast-to-noise(CNR) measurements were performed. Qualitative ranking of sharpness of tumors, contrast between tumors and normal liver tissue, noise, and image quality were graded(scale: 1(worse)-4(best)). Data was analyzed using completely randomized design analysis of variance and Kruskal Wallis test. Results: In the comparison of quantitative noise, the groups with iDOSE reconstruction were lower than group A(P<0.01). CNR of groups with iDOSE reconstruction were higher than group A(P<0.01). There was no significant difference among the four groups for tumor tissue contrast and qualitative noise score(P=0.09, P=0.74). There was no significant difference between group B and A, C and A for tumor sharpness and image quality scores. However, a significant difference in tumor sharpness and image quality scores was observed beween group D and group A(P<0.01). Conclusions: When the radiation dose of hepatic enhanced CT scan was reduced by 50%, images maintaining the diagnostic quality of routine dose CT or even better images could be acquired with iDOSE technique.
2013 Vol. 24 (5): 334-337 [Abstract] ( 689 ) HTML (0 KB)  PDF  (0 KB)  ( 186 )
338 Three-dimensional interpretation and analysis of anatomic variation of the portal vein andhepatic vein based on 64-slice spiral CT data
TANG Min;YANG Shang-wen;MA Yi-ming;LUAN Wei;HE Jian;ZHU Bin
DOI:
Objective: To investigate 3D interpretation and analyse the data of anatomical variation of hepatic vessels using enhanced CT on 64-MSCT. Methods: 200 cases performed on 64-MSCT were examined. 3D display and marking of the hepatic vessels and branches were performed using IQQA-Liver software. The anatomic variation was evaluated. Results: The adopted method of vessel segmentation, marking and analysis was time-efficient, and resulted in individualized real-time interactive 3D vascular models representing true structures verified on original 2D DICOM images. Normal type of portal vein accounted for 71.5%(143/200), and the variants 28.5%(57/200). The left hepatic vein shared a common trunk with the middle one in 148 subjects(74%). Visualization rate of right inferior hepatic vein with diameter larger than 3 mm was 36.5%(73/200). The presence rate of a significant segment Ⅷ vein(>5 mm) draining to MHV was 30%(60/200). Conclusion: Variation of the hepatic vessels is not rare. The individualized 3D vascular models from CT data analysis in this study represented the anatomic variations of hepatic vessels well, and provided sufficient real-time interaction to various types of anatomical variations for surgery and interventional planning.
2013 Vol. 24 (5): 338-340 [Abstract] ( 692 ) HTML (0 KB)  PDF  (0 KB)  ( 224 )
341 Diagnosis of DCE MRI for nonfunctioning pancreatic endocrine tumors
QIAN Ming-xia;MA Zhou-peng;ZHU Jian-zhong;HE Zhong-heng;CAO Zhao-fei;ZHENG Wei
DOI:
Objective: To investigate the appearances and diagnostic value of dynamic contrast enhanced(DCE) MR for nonfunctioning pancreatic endocrine tumors. Methods: DCE MR in 13 cases and clinical data which were proved to be nonfunctioning pancreatic endocrine tumor by pathology were analyzed retrospectively. Results: There were 7 solid tumors and 6 solid-cystic tumors, the maximum diameter was 28~122 mm, the average diameter was 74 mm. All tumors MR T1WI showed equal or low signal and T2WI showed high signal on non-contrast scan. On dynamic contrast enhanced scan, most tumors showed obvious continued enhancement, the cystic area without enhancement. Envelope can be seen in the edge of 12 cases, showed low signal on non-contrast scan and obvious delayed enhancement on dynamic contrast enhanced scan. Conclusions: Central tumors always showed single large mass and with clear boundary, DCE MR is useful for the diagnosis.
2013 Vol. 24 (5): 341-345 [Abstract] ( 715 ) HTML (0 KB)  PDF  (0 KB)  ( 258 )
346 The value of transvaginal three-dimentional ultrasound for diagnosing cervical carcinoma and cervical leiomyoma
LI Ping;WANG Xue-mei;LIU Yan-jun;ZHANG Yu-qin
DOI:
Objective: To investigate the value of transvaginal three-dimentional ultrasound in diagnosing cervical carcinoma and cervical leiomyoma. Methods: Thirty-four patients with cervical leiomyoma and fourty-six patients with cervical carcinoma were enrolled in the study who were examined by transvaginal three-dimentional ultrasound accompanied with color Doppler energy. The characteristics of the two diseases such as site, shape, boundary, blood flow, infiltration and lymph node metastasis were observed. Results: The cervical leiomyoma mainly located in the cervical myometrium(n=26), and displayed as spherical hypoechoic nodules with clear boundary which surrounded by blood flow. The cervical carcinoma mainly located near cervical external os(n=41), and displayed as hypoechoic lesions with irregular morphology and unclear boundary which had abundant and disordered blood supply. There were statistically significant differences between the two groups about morphology, boundary, blood flow, infiltration of surrounding organs and lymph node metastasis(P<0.05). Conclusions: Transvaginal three-dimentional ultrasound is a useful tool to investigate cervical mass, it can display the lesion and its vascularization stereoscopically and visually. It can provide some valuable information for diagnosing cervical carcinoma and cervical leiomyoma.
2013 Vol. 24 (5): 346-348 [Abstract] ( 691 ) HTML (0 KB)  PDF  (0 KB)  ( 260 )
349 Influence of pressure and frequency in testicle UE sonogram in healthy person: a factorial design research
QIU Shao-dong;CHEN Fei;ZENG Bi-dan;LUO Yan-hua;MAI Xing-huan
DOI:
Objective: To approach the influence of pressure and frequency in testicle UE sonogram in healthy person with factorial design. Methods: 305 healthy individuals were observed with UE under different pressures or frequencies, in order to analyze the differences in mean value of ROI under different conditions. Results: Both pressure and frequency can influence Mean ROI and it shows interaction between pressure and frequency; Mean increased when pressure reduced and tissue looks softer; Mean reduces when pressure increased and tissue looks harder. Different pressures, frequencies have different effect on mean ROI. Under medium pressure, it shows no significant differences in mean value between medium frequency and high frequency. Under high pressure, it shows no significant differences in mean between low frequency and high frequency. Conclusions: UE sonogram is affected by both pressure and frequency; In testicles, intermediate frequency and intermediate pressures make the sonogram steady. Pressure and frequency should be consistent in clinical and research, in order to reduce measurement error brought by operation.
2013 Vol. 24 (5): 349-352 [Abstract] ( 931 ) HTML (0 KB)  PDF  (0 KB)  ( 272 )
       综述
353 Intravoxel incoherent motion imaging
YIN Yin;GAN Jie
DOI:
2013 Vol. 24 (5): 353-356 [Abstract] ( 745 ) HTML (0 KB)  PDF  (0 KB)  ( 230 )
       短篇论著
357 The clinical study of different sizes and depths of thyroid nodules with ultrasound elastography
ZHENG Ya-lan;ZHENG Yuan-yuan;WANG Gu-yi
DOI:
2013 Vol. 24 (5): 357-359 [Abstract] ( 689 ) HTML (0 KB)  PDF  (0 KB)  ( 203 )
359 Renal collecting duct carcinoma: CT and MRI findings
WANG Ge;NI Rui-jun;LI Zhen-wei
DOI:
2013 Vol. 24 (5): 359-362 [Abstract] ( 784 ) HTML (0 KB)  PDF  (0 KB)  ( 203 )
363 Clinical manifestations and eosinophilic cystitis in adults
JI Liu-zhou;LIU Xiu-ping;LI Hong-tao;LIU Yi-kang;SUN Guo-yun;LEI Tian-xiao;YANG Jian-lin
DOI:
2013 Vol. 24 (5): 363-366 [Abstract] ( 629 ) HTML (0 KB)  PDF  (0 KB)  ( 195 )
366 Combination of two-dimensional ultrasound and three-dimensional color power angiographyin the diagnosis of abnormal umbilical cord
AN Xia;ZHANG Zhong-lu;LIU A-qing;SONG Bing
DOI:
2013 Vol. 24 (5): 366-367 [Abstract] ( 684 ) HTML (0 KB)  PDF  (0 KB)  ( 250 )
368 Prenatal diagnosis of megabladder and associated anomalies using ultrasound
CHEN Qing-hua;CHEN Hua-juan;XIAO Jie-chuan;CHENG Hong;HUANG Song-dai
DOI:
2013 Vol. 24 (5): 368-369 [Abstract] ( 755 ) HTML (0 KB)  PDF  (0 KB)  ( 263 )
370 Ultrasound assessment of long-term preventive effect of the inferior vena cava filter
CHEN Ke-wen;LI Ming-xing;SHI Sen;MAO Wei;LUO Zhi-jian;FAN Li-ping
DOI:
2013 Vol. 24 (5): 370-371 [Abstract] ( 2786 ) HTML (0 KB)  PDF  (0 KB)  ( 245 )
       病例报告
372 MSCT diagnosis of multiple organs impairment with tuberous sclerosis complex: report of one case
ZHANG Li-rong;HAN Yue-dong;NIU Juan-qin
DOI:
2013 Vol. 24 (5): 372-372 [Abstract] ( 592 ) HTML (0 KB)  PDF  (0 KB)  ( 415 )
373 Echocardiographic features of coronary artery fistula: report of one case
SONG Qi;WANG Xiao-cong;LIU Yue;ZHANG Yan-li;YU Wei;PEI Li-ping;JIANG Jing
DOI:
2013 Vol. 24 (5): 373-373 [Abstract] ( 1157 ) HTML (0 KB)  PDF  (0 KB)  ( 257 )
374 Congenital giant choledochal cyst in neonate: report of one case
GAO Wen-jing;WU Xiao-li;JIA Jing;YANG Song-qing
DOI:
2013 Vol. 24 (5): 374-375 [Abstract] ( 684 ) HTML (0 KB)  PDF  (0 KB)  ( 194 )
375 Pancreatic Schwannoma: report of one case and literature review
DU Ming;XIN Jun
DOI:
2013 Vol. 24 (5): 375-376 [Abstract] ( 660 ) HTML (0 KB)  PDF  (0 KB)  ( 228 )
377 Adult true hermaphroditism with right cryptorchidism malignant mixed germ cell tumor: report of one case
FAN Shi-fu;WU Jin-bang;GUO Yuan-yuan;LUO Tao
DOI:
2013 Vol. 24 (5): 377-378 [Abstract] ( 709 ) HTML (0 KB)  PDF  (0 KB)  ( 196 )
378 Cystic adventitial disease of the popliteal artery: report of one case
SONG Duan;XUE Ming-tuan
DOI:
2013 Vol. 24 (5): 378-379 [Abstract] ( 755 ) HTML (0 KB)  PDF  (0 KB)  ( 264 )
380 Neurilemmoma of left tibia: report of one case
XU Peng;LV Lu-lu;XU Kai
DOI:
2013 Vol. 24 (5): 380-380 [Abstract] ( 650 ) HTML (0 KB)  PDF  (0 KB)  ( 227 )
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