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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
2015 Vol. 26, No. 1
Published: 2015-01-20
论著
0
Diagnostic value of dynamic enhanced MRI and MRCP in cholangiocarcinoma caused by clonorchiasis
LI Li;LI Jian-zhang;XIANG Zhi-ming;GUANG Xue-ting;ZHANG Ping-ping
DOI:
Objective: To explore diagnostic value of dynamic enhanced MRI and MR cholangiopancreatography(MRCP) in cholangiocarcinoma caused by clonorchiasis and its possible pathogenesis. Methods: 28 patients with cholangiocarcinoma caused by clonorchiasis who were confirmed by surgery or pathology were enrolled in the study. Their MRI and MRCP features were retrospectively analyzed including the location, size, shape, signal intensity and enhancement pattern of the tumors, and the characteristics of bile duct dilatation. Results: There were 9 cases in mass-type, 16 cases in infiltrative-type and 3 cases in intracavitary-type. The MRI features of most tumors were hypointense on T1WI and inhomogeneouly hyperintense on T2WI. Tumors of mass-type and infiltrative-type showed gradual centripetal contrast enhancement. Tumors of intracavitary-type showed homogeneously enhanced filling defects in the bile ducts. On MRCP, the mass-type showed slight to moderate dilatation of intrahepatic biliary ducts around the tumors, with diffuse saccular dilatation of terminal intrahepatic bile ducts. The infiltrative-type and intracavitary-type showed moderate to severe dilatation of the biliary ducts. Conclusion: Clonorchiasis is an important cause for cholangiocarcinoma. The feature of clonorchiasis is saccular dilation of terminal intrahepatic bile ducts. Dynamic enhanced MRI with MRCP is an important technique for accurate diagnosis of cholangiocarcinomas caused by clonorchiasis.
2015 Vol. 26 (1): 0-30 [
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643
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1
Clinical prognostic factors in unilateral moyamoya disease
ZHANG Ya-nan;XUE Jing;GAO Pei-yi
DOI:
Objective: To investigate clinical prognostic factors in unilateral moyamoya disease(MMD) and provide evidence in prognosis prediction and treatment selection. Methods: A restrospective analysis of 51 patients with unilateral MMD in Tiantan Hospital between April 2008 and December 2013 was performed. Clinical data, imaging indexes, and prognosis were analyzed. Results: Of the 41 follow-up patients, those cases with cerebral infarction(CI), transient ischemic attack(TIA) and cerebral hemorrhage showed different prognosis(χ2=11.22, P<0.05), of which the prognosis of TIA group was better than that of CI group(P<0.05). In addition, the prolonged relative mean transit time(rMTT) of posterior cerebral artery(PCA) area before operation was a better prognosis factor(P<0.05). Conclusions: The clinical classification and rMTT of PCA area are factors infecting prognosis.
2015 Vol. 26 (1): 1-4 [
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748
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5
Investigation on DWI signals of high grade glioma with ring enhancement on MRI
YANG Yu;ZHOU Zhi-hui;LI Ping;LOU Xin
DOI:
Objective: To investigate the characteristics of DWI signals in high grade gliomas with ring enhancement on MRI. Methods: DWI signals within ring enhanced areas in 19 cases of high grade gliomas were analyzed retrospectively. They were divided into 4 situations according to the image features. They were as followed: regional corresponding relation between the ring enhancement and DWI signal; regular or irregular shape of rings; with tension or not concerning on the ring shape; the ring wall is closed or not; MRI sequences included T2WI, T2WI-FLAIR, T1WI, DWI, enhanced T1WI with fat suppression. Results: All 19 cases showed ring enhancement on enhanced MRI. 16 cases showed high signal intensities on DWI which accorded or exceeded the scope of ring enhancement. DWI hyperintense area was smaller than the enhancement area in 3 cases. DWI high signal area showed a ring shape with no tension in 12 cases and with tension in 1 case. 6 cases did not show ring-like hyperintense area on DWI or their tension not to be judged. Hyperintense rings on DWI were irregular in 12 cases and regular in 1 case. No hypertense rings on DWI were formed in 6 cases which led to bad judgement; Hyperintense rings on DWI(closed loops) were found continuous in 11 cases and interrupted(open loop) in 2 cases. Conclusion: In high grade gliomas with ring enhancement, DWI high signal areas generally accorded to the enhancement or exceeded its range. When DWI showed a hyperintense ring, its characteristics were irregular in shape, with no tension and a closed loop. Hemorrhage could cause unobvious characteristics of the ring on DWI. There is much value for these imaging features in the diagnosis of intracranial high grade gliomas.
2015 Vol. 26 (1): 5-8 [
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769
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9
MRS-based efficacy assessment of brain metastasis treatment by GKS
GUO Qi;ZHANG Xue-ning;WU Meng-lin;SHI Dai;WEI Lu;XU De-sheng;ZHANG Yi-pei
DOI:
Objective: To assess the efficacy of GKS and its clinical value during follow-up by detecting changes in MRS metabolite levels before and after brain metastasis treatment. Methods: 24 lesions of brain metastasis were treated with GKS, which were confirmed by clinical or pathology. MRI with contrast and MRS were performed within 24 hours to evaluate target lesions before GKS treatment, 1 month and 4 months after treatment. Tumor volumes were calculated, and metabolite contents were measured with post-processing software. Changes of metabolite contents in tumor parenchyma before and after GKS treatment were analyzed by ANOVA, and tumor volumes were compared by Kruskal-Wilcoxon and Wilcoxon rank sum test. Results: The changes of tumor volumes before GKS treatment, 1 month and 4 months after treatment were statistically significant (P<0.05). There was no statistical significance before and 1 month after treatment, and only tumor volumes before and 4 months after treatment were statistically significant(P<0.05). The changes of nCho, Cho/Cr, Cho/NAA and Cho/cNAA before GKS treatment, 1 month and 4 months after treatment were statistically significant(P<0.05). Conclusions: MRS is able to show early responses of GKS treatment on brain metastasis and will evaluate GKS efficacy more accurately by combination with contrast MRI.
2015 Vol. 26 (1): 9-13 [
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765
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14
Control study between high frequency color Doppler ultrasound and X-ray mammography examination in the early diagnosis of breast carcinoma in situ
ZHANG Bing-yi;ZHANG Yu-lin;HAN Ling;GAO Yang;WANG Xu;PING Jie;ZHANG Ling;LI Shuang
DOI:
Objective: To investigate the imaging characteristics of high-frequency color Doppler ultrasound and X-ray mammography examination in diagnosing breast carcinoma in situ. Methods: Imaging data of 30 patients with breast carcinoma in situ by comfirmation of pathology were retrospectively reviewed. Both high-frequency color Doppler ultrasound and X-ray mammography examination were between January 2007 and December 2013. Results: Among all 30 patients with breast carcinoma in situ, 21 cases were detected by X-ray mammography examination with a diagnostic accuracy of 70%. 16 cases were detected by high-frequency color Doppler ultrasound with a dagnostic accuracy of 53%. The diagnostic accuracy of X-ray mammography examination(70%) is significantly higher than that of high-frequency color Doppler ultrasound(53%) for breast carcinoma in situ. X-ray mammography examination showed significantly higher rate(66.7%) of tumor microcalcification onset than high-frequency color Doppler ultrasound(40%). Conclusions: For the early diagnosis of breast carcinoma in situ, X-ray mammography examination was better than high-frequency color Doppler ultrasound, but both methods can make complements to each other. A combination of two imaging methods can improve the detection rate of breast carcinoma in situ and further reduce the misdiagnosis rate.
2015 Vol. 26 (1): 14-17 [
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788
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18
Imaging findings and a comparative study of gastric schwannomas and gastric stromal tumors on multi-slice CT
XU Hui-xin;XU Qing
DOI:
Objective: To investigate CT findings of gastrointestinal schwannomas(GS) and gastric stromal tumors(GST), and further to compare their CT features in order to differentiate GS from GST. Materials and Methods: 19 GSs and 76 GSTs proven surgically and pathologically were enrolled in this study. Two experienced radiologists retrospectively evaluated and compared the CT features including size, contour, growth pattern, pattern and degree of contrast enhancement, and the presence of intralesional low attenuation area, hemorrhage and calcification. The statistical significance was evaluated by using 95% confidence interval, one-way ANOVA, LSD test and Chi-Square test. Results: As the diameter was concerned, GSs were significantly bigger than GSTs at very low risk(P=0.04), and smaller than GSTs at high risk(P=0.01). The contour was round or oval in most GSs(18/19), GSTs at very low risk(16/16), GSTs at low risk(28/34) and GSTs at intermediate risk(11/13), but lobulated in GSTs at high risk(8/13). GSTs at very low risk frequently demonstrated an endoluminal growth pattern(12/16), while a homogeneous enhancement pattern was frequently found in GSs(18/19) and GSTs at very low risk(15/16). Good enhancement degree was more common in GSTs at low risk(26/34), GSTs at intermediate risk(11/13) and GSTs at high risk(13/13) than in GSs(9/19). The intralesional low attenuation area was more common in GSTs at low risk(11/34), GSTs at intermediate risk(6/13) and GSTs at high risk(11/13) than in GSs(1/18). Conclusion: GSs frequently show a round or oval appearance with slight homogeneous enhancement pattern and rare intralesional necrosis, hemorrhage or calcification. These CT findings are common in GSTs at very low risk, low risk and intermediate risk, but distinguishable from GSTs at high risk.
2015 Vol. 26 (1): 18-22 [
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734
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23
Analysis of CT and MRI features of primary gastrointestinal lymphoma
YANG Chao-wu;HE Guang-wu;LI Zheng-yu;ZHAO Bing-hui
DOI:
Objective: To investigate CT and MRI features of primary gastrointestinal lymphoma in order to increase the diagnostic rate and accuracy and further provide evidence for clinical treatment. Methods: CT and MRI data from 32 patients with gastrointestinal lymphoma in recent 6 years in our hospital were retrospectively analyzed. All definite diagnosis was from endoscopy or pathology. Results: CT revealed that the thickening gastric wall had homogeneous density and broad base. The percent of mucosa with white lines in arterial phase was 87.5% and 3 layers with mucosa, tumor and serosa in venous phase was 81.3%. MRI had unique advantage in displaying mucosa and serosa on T1WI and T2WI. The intestinal lymphoma was characteristic of multi-segmental wall thickening in an annular way with mild to moderate enhancement. Aneurysm-like intestinal dilatation was common. Colonic dilatation could be detected with effusion and gas but intestinal obstruction was rare. A mass was usually formed with gas inside and secondary intestinal obstruction often happened when ileocecus, especially the ileum or ascending colon was involved. Regional lymph nodes were often involved in primary gastrointestinal lymphoma, commonly in the corresponding drainage area. Conclusion: CT and MRI could reveal the pathological feature and infiltration of surrounding tissue for primary gastrointestinal lymphoma clearly. Typical CT and MRI signs have great value in qualitative diagnosis.
2015 Vol. 26 (1): 23-26 [
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719
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31
Application value of three-dimensional ultrasonography in the diagnosis of congenital dacryocystocele
LIU Yu-ting;CAI Ai-lu;WANG Bing;WANG Yu;WANG Xiao-guang
DOI:
Objective: To assess the application value of three-dimensional ultrasonography in the diagnosis of congenital dacryocystocele. Methods: Ultrasonic findings of 18 fetuses with congenital dacryocystocele were retrospectively analyzed and compared with the findings after induction. All of the patients’ follow-up results were obtained from the Ophthalmology doctor or directly from the parents of children. Results: Congenital dacryocystocele ultrasonic image features: 2D ultrasound scanning showed well-defined anechoic fluid zone over the medial infraorbital area with no blood flow signal on CDFI. Three-dimensional ultrasonography could analyse the relationship between the lesions and surrounding tissues through multilayer surface by displaying the liquid zone through A-plane(sagittal section), B-plane(transverse section), C-plane(coronal section) at the same time. The bulging mass from the surface over the medial infraorbital area could be directly displayed by using three-dimensional surface imaging technology. The 18 fetuses were all diagnosed and confirmed with congenital dacryocystocele after birth. The cysts’ diameters were between 0.3~1.2 cm. There were no signs of eyeball compression or displacement. Conclusion: Three-dimensional ultrasonography can make comprehensive evaluation of congenital dacryocystocele, including the location, size, hemodynamic conditions, and relations with surrounding soft tissue and bony structures. When the longest diameter of congenital dacryocystocele was not less than 1.0 cm with no reduction by follow-up, low self-healing rate and poor prognosis would occur. Three-dimensional ultrasonography has great clinical value in diagnosis of congenital dacryocystocele.
2015 Vol. 26 (1): 31-33 [
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640
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34
The study of relationship between ADC values and ages in different regions of normal prostate at different b values
ZHANG Fang-jing;ZHU Ji-chao;CHEN Yan-ping
DOI:
Objective: To analyze and compare the changes of apparent diffusion coefficient(ADC) values of peripheral zone(PZ) and central gland(CG) in normal prostate gland and that of different age groups by 3.0T diffusion-weighted MR imaging(DWI) with array spatial sensitivity encoding(ASSET) technique at different b values. Methods: 29 patients who underwent prostate DWI scanning were enrolled in this study. These patients were divided into two groups as followed: young adult normal group(age from 21 to 50 years old), 14 cases; symptomless aged group(age from 51 to 79 years old), 15 cases. b values were 300, 600, 800 and 1 000 s/mm2. Results: The signal intensity of DWI and ADC values in the PZ were both higher than that in CG at the same b values in two groups. Statistically significant difference(P<0.05) was found in ADC values between PZ and CG. The signal intensity of DWI and ADC values of PZ and CG in the aged group were higher than that in the youth adult group at the same b value. Statistically significant difference(P<0.05) was found in ADC values at the same region. Statistically significant difference(P<0.05) was found in ADC values among four different b values at the same region. The lower the ADC values were, the larger the b values were. Positive correlations existed between age and the ADC values of PZ and CG significantly. Conclusion: The ADC values of PZ are higher than that in CG in normal prostate at the same b value. The higher the b values are, the lower the ADC values are. The ADC values of PZ in prostate increased as age increased. Age should be considered when prostatic diseases were diagnosed with ADC values.
2015 Vol. 26 (1): 34-37 [
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719
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38
An fMRI study on cervical spinal cord after acupuncture electrical stimulation at Hegu(LI4)
WANG Wei-dong;KONG Kang-mei;WANG Xin-jia;WU Ren-hua;SHEN Zhi-wei
DOI:
Objective: To investigate the acupuncture response by evaluating the neuronal activity in cervical spinal cord assessed with SEEP-fMRI by comparison between electrical acupuncture stimulation at LI4 and the sham point. Methods: The fMRI data using single-shot fast spin-echo sequence(SSFSE) with 42.4 ms echo time on a 1.5T MRI scanner(GE Clinical System) were acquired in sixteen subjects with electro-acupuntcure at an acupoint and at a nearby“sham” point, and nine patients with cervical spinal cord injury with electro-acupuntcure at LI4. Cervical spinal cord activation was measured both in the sagittal and transverse imaging planes. Postprocessing was performed by AFNI(Analysis of Functional Neuroimages) software system. Electrical LI4 without stimulation(rest) was applied in 35-s epochs alternating with 35-s epochs of stimulation. Images were acquired repeatedly during alternating rest and stimulation periods for five times, resulting in a total of 63 time points recorded with the ending of R5=35s. Results: Our results revealed that common activation areas in response to LI4 and sham point acupuncture measured in the spinal cord were most in terms of the ipsilateral posterior direction, and the localizations of the segmental fMRI activation were at C5 through T1. The activated regions localized to the ipsilateral side of lower cervical segments(C5 through T1) were in agreement with the neural anatomy. However, the activation of the upper cervical segment, in particular C2~C3 level, located at the ipsilateral posterior and anterior direction was only found at the real acupoint. These specific spinal cord activation patterns might suggest that stimulation of LI4 has a specific effect on spinal cord neuronal activity, absent with the sham-acupoint. Conclusion: The fMRI activations could be reliably detected with electro-acupuntcure at LI4 in the human spinal cord using SSFSE sequence. The anatomic location of neural activity correlated with the sensorimotor deficits. But the activation of the upper cervical segment, in particular C2~C3 level, might correspond to the special transmission channel of acupuncture.
2015 Vol. 26 (1): 38-43 [
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550
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44
SPECT/CT triphase bone imaging for the differential diagnosis of prothesis loosening andjoint infection after arthroplasty
DENG Yong-mei;ZHANG Jin-shan;LI Yuan;YUAN Wen-jin
DOI:
Objective: To investigate the value of 99Tcm-MDP triple phase bone imaging for the differential diagnosis of prosthesis loosening and joint infection after arthroplasty. Methods: 14 patients with joint pain after joint arthroplasty underwent triphase SPECT/CT bone imaging. By visual analysis, the bone imaging results were validated with the findings of germiculture, serum C reative protein(CRP), erythrocyte sedimentation rate(ESR) and biopsy. Results: The final clinical diagnosis was taken as gold standard. If diffuse radioactivity in the bone and prosthesis simply by delayed phase was considered joint infection, the diagnostic sensitivity, specificity and accuracy were 80%, 77.78% and 78.6%, respectively. When increased uptake of isotopes in the blood flow or pool phase as well as positive findings in the delayed phase as the criterion of joint infection, the diagnostic sensitivity, specificity and accuracy were 100%, 88.89% and 92.9%, respectively. Conclusion: Delayed SPECT/CT hybrid imaging may precisely indicate the position of prosthesis loosening and joint infection. By combination of 99Tcm-MDP blood flow and pool imaging, it showed higher clinical value in differentiating joint infection from prosthesis loosening after arthroplasty.
2015 Vol. 26 (1): 44-46 [
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551
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综述
47
The current development status of functional magnetic resonance imaging of breast cancer
ZHOU Hong;CHEN Dong
DOI:
2015 Vol. 26 (1): 47-49 [
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631
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164
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短篇论著
50
CT diagnosis and differential diagnosis of liver hemangioma in pediatric
YU Yang-hong;TAO Qiang;HUANG Wei;YANG Wen-ping;XU Hui-ling;YANG Ling;TAO Jun;DING Shan
DOI:
2015 Vol. 26 (1): 50-52 [
Abstract
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743
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215
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53
CT diagnosis of renal collecting duct carcinoma(report of two cases and literature review)
YANG Guo-mei;ZHU Qing-qiang;HU Xiao-hua;TIAN Tong-tong;WU Jing-tao
DOI:
2015 Vol. 26 (1): 53-55 [
Abstract
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752
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232
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56
Clinical, pathological and MRI findings of metanephric adenoma(report of two cases and literature review)
HE Xin-hua;DING Yu-qin;HUANG Jian-feng;MIAO Xi-yin;LUO Rong-kui;CAO Ying-li;ZHOU Jian-jun;ZENG Meng-su
DOI:
2015 Vol. 26 (1): 56-58 [
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675
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143
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59
An investigative study on urinary tract imaging examinations of double pelvis andureter and their complications
CHEN Shan-xi;GAO Yuan-tong;YAN Zhi-han;HOU Bo
DOI:
2015 Vol. 26 (1): 59-61 [
Abstract
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642
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173
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61
Prenatal ultrasound diagnosis of fetal aorticopulmonary septal defect
CHEN Cui-hua;CHEN Si-jin;QIU Yu-wen;WANG Yun-fang;XIAO Shu-fang;DENG Xu-jie
DOI:
2015 Vol. 26 (1): 61-62 [
Abstract
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958
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211
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63
Analysis of bone scintigraphy cases easily misdiagnosed as multiple bone metastases
ZHENG Lei;XIE Lai-ping;LUO Chao-xue;LI Hong-min;CHEN Jie;HUANG Ding-de
DOI:
2015 Vol. 26 (1): 63-65 [
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1279
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66
Effects of low tube voltage combining with ASIR on abdominal plain CT scan images
PU Ren-wang;LIU Yi-jun;LIU Jing-hong;LU Xu-lun;WANG Shi-yu;LIU Ai-lian
DOI:
2015 Vol. 26 (1): 66-68 [
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629
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病例报告
69
Massive hepatic portal venous gas due to acute gastric dilatation: report of one case
YANG Jun-ming;WANG Fu-ping
DOI:
2015 Vol. 26 (1): 69-70 [
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665
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220
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70
The pancreatic schwannoma: report of one case and literature review
ZHANG Juan;LI Pei-ling;ZHAI Zhao-hua
DOI:
2015 Vol. 26 (1): 70-71 [
Abstract
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640
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255
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71
Primary endodermal sinus tumor of the pancreas in an infant: report of one case
YANG Hui-ping;ZHANG Hong-xi;ZHENG Yi;YANG Xin-hui
DOI:
2015 Vol. 26 (1): 71-73 [
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531
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174
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73
MSCT of Castleman disease in lesser omentum: report of one case
LIU Ni-jun;LIU Xiao-qing;ZHANG Hua-wen;PAN Gao-zheng
DOI:
2015 Vol. 26 (1): 73-75 [
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655
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238
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75
Primary leiomyosarcoma of femur: report of one case
LI Chuan-jie
DOI:
2015 Vol. 26 (1): 75-76 [
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671
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