Office Online  
Journal Online  
  Just Accepted
  Current Issue
  Archive
  Advanced Search
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. 2
Published: 2017-02-20
 
77 Analysis of MRI manifestation and relatives pathology feature of supratentorial primitive neuroectodermal tumor in children
GUAN Hong-mei1, ZHAO Meng2, LI Xiao-hui1, GAO Xiu-cheng1, XI Yan-li1
Objective: To investigate the MRI features of the supratentorial primitive neuroectodermal tumor(sPNET) in children. Methods: Twenty cases of sPNET confirmed by operation and pathology were collected, all patients underwent conventional MRI scan, enhanced scan, and diffusion-weighted imaging(DWI) scan. Results: Twenty cases of sPNET were all located in supratentorial cerebral hemisphere(frontal, temporal, top, occipital, insular lobe, lateral ventricle). Fourteen cases were shown huge cystic-solid mixed masses, 4 cases were manifestated great solid tumor with microcystic, 2 cases were small tumor size and calcification. No edema or peritumoral edema around the tumor, hemorrhage in 5 cases, 3 cases of postoperative examination spreaded along the subarachnoid. MR scan was shown mixed signal, the solid part of tumor was shown equal or slightly low signal on T1WI, equal or slightly hyperintense on T2WI, high signal on DWI, and slightly low signal on ADC map. The signal of cystic region was consistent with cerebrospinal fluid and the region of cyst with hemorrhage was shown complex signal. The solid part of the tumor was enhanced moderately or markedly. Conclusion: There were some imaging features with sPENT. DWI was especially beneficial to nature of tumor diagnosis, providing information of tumor invasion and whether implantation metastasis along the subarachnoid existed. It was beneficial to clinical staging and treatment plan.
2017 Vol. 28 (2): 77-80 [Abstract] ( 777 ) HTML (1 KB)  PDF  (0 KB)  ( 156 )
81 An investigation of tiny stony foreign body in rabbit vitreous body with MRI
ZHANG Xiao-nan, CHENG Jing-liang, ZHANG Hui-xia, WANG Fei-fei, WEN Bao-hong
Objective: To investigate the MRI features of stony foreign body in rabbit vitreous body by susceptibility weighted imaging(SWI) and conventional sequences. Methods: Forty healthy rabbits were involved in this study. Experimental group were ten rabbits. Selected stones, porcelain, coal, graphite four stone material as foreign body(maximum diameter were 0.2 mm) that were randomly and respectively implanted into 40 right rabbit’s vitreous body. Take the left rabbits vitreous body implanted as reference, all cases were underwent T1WI, T2WI, PDWI, 3D-DESS and SWI sequences examination in 2 hours. Highest magnification was 3D-DESS sequence of conventional sequence, the diameter of foreign bodies on T2WI sequence was closed to the actual diameter, highest magnification was mIP figure of SWI sequence. Results: All of 40 stony foreign bodies, the diagnosis rate of T1WI, T2WI, PDWI, 3D-DES sequences was 75%, 83%, 68%, 93%. The diagnosis rate of Mag, Pha, mIP, SWI figures was 88%, 88%, 78%, 88%. Conclusion: 3D-DESS and SWI were sensitive sequences for detecting tiny stony foreign body in vitreous bodies, for the amplification effect that could be used for the detection of foreign bodies as a complementary method for convention MRI.
2017 Vol. 28 (2): 81-84 [Abstract] ( 750 ) HTML (1 KB)  PDF  (0 KB)  ( 150 )
85 The analysis of ADC value’s standard deviation and ROI for prediction the short-term#br# therapeutic effect in nasopharyngeal carcinoma
LI Wei, TANG Ri-jie, PENG Jun-qin, LI Jian-sheng
Objective: To identify the optimal ADC value parameter by evaluating the relationship between different ADC values by ROI and the short-term therapeutic effect of chemoradiation in nasopharyngeal carcinoma. Methods: Fifty-three cases of nasopharyngeal carcinoma patients were performed MR diffusion weighted imaging with b value(0, 800) s/mm2. To obtain 4 ADC value parameters(ADC1-min, ADC1-mean, ADC1-max, ADC1-sd) by A setting(ROI including the entire tumor foci) and obtain 3 ADC value parameters(ADC2-min, ADC2-mean, ADC2-max) by B setting(ROI with 2～3 mm diameter in tumor solid portion). Fifty-three cases were divided into the sensitive group and resistant group according to the size of the primary nasopharyngeal carcinoma after radiotherapy combined with neoadjuvant chemotherapy. To analyze the relationship between 7 parameters and find the best parameter through the Az value of ROC curve and its related factors. Results: Fifty-three cases were attributed to the sensitive group in 35 cases and the resistant group in 18 cases. There were significant difference(t=2.618, 4.809, 2.337, 2.093; P=0.012, 0.000, 0.023, 0.041) among ADC1-mean((0.875±0.114, 0.962±0.116)×10-3 mm2/s), ADC1-sd((0.336±0.075, 0.436±0.066)×10-3 mm2/s), ADC2-min((0.623±0.124, 0.548±0.077)×10-3 mm2/s), ADC2-max((1.234±0.148, 1.320±0.131)×10-3 mm2/s) in two group. And no significant difference(t=1.665, 1.914, 0.801; P=0.102, 0.061, 0.427) in ADC1-min((0.554±0.088, 0.512±0.084)×10-3 mm2/s), ADC1-max((1.512±0.214, 1.630±0.215)×10-3 mm2/s), ADC2-mean((0.856±0.092, 0.877±0.083)×10-3 mm2/s). The Az values of ADC1-mean, ADC1-sd, ADC2-min and ADC2-max were 0.725, 0.864, 0.676, 0.662. There was significant positive correlation(F=4.425, P=0.008) between ADC1-sd and T stage(T1～T4, (0.263±0.102, 0.342±0.081, 0.394±0.062, 0.404±0.096）×10-3 mm2/s), and no significant correlation between ADC1-sd and age, sex and pathological type. Conclusion: The standard deviation of ADC value obtained from ROI including whole nasopharyngeal carcinoma primary tumor has a greater value for predicting the short-term therapeutic effect, which is closely related to the T staging.
2017 Vol. 28 (2): 85-88 [Abstract] ( 683 ) HTML (1 KB)  PDF  (0 KB)  ( 197 )
89 Correlation between ultrasonographic features with biological indicators in breast invasive ductal carcinoma
JIANG Wen-bin, REN Fu
Objective: To investigate the correlation between ultrasonographic features with expression of biological indicators in breast invasive ductal carcinoma(IDC). Methods: The 117 cases of breast IDC tissues confirmed by pathology were described retrospectively by color Doppler ultrasound signs, including tumor size, edge, shape, distribution of calcification and morphology, rear echo, grade of flowing image, metastasis to lymph node and surrounding tissues invasion. We used immunohistochemical methods to detect the expression of ER, PR, HER-2, Ki67, p53 and analyze their correlations with ultrasonographic features. Results: The positive rate of ER, PR, HER-2, Ki67 and p53 in breast IDC were 70.9%, 59.0%, 66.7%, 70.1%, 51.3% respectively. Edge “glitches” sign of ultrasonographic features had correlation with the expression of ER, PR(P<0.05). The microcalcifications within the mass had correlation with the expression of HER-2, Ki67(P<0.05). The features of rear echo attenuation and flow grade level 2～3 had positive correlation with the expression of HER-2, Ki67, p53, but had no significant correlation with ER, PR(P>0.05). Whether lymph node metastasis and infiltration of surrounding tissue had correlation with the expression of ER, PR, HER-2, Ki67, p53(P<0.05), and tumor size, shape had no significant correlation with ER, PR, HER-2, Ki67, p53(P>0.05). The level of Ki67 and HER-2, p53 and HER-2 were positively correlated(r=0.290, P=0.001; r=0.254, P=0.006). The expression of Ki67 and p53 was positively correlated(r=0.222; P=0.016). Conclusion: There has correlation between ultrasonographic features and molecular biological markers, such as ER, PR, HER-2, Ki67, p53. Malignancy ultrasono-graphic features display a certain extent with the low level of ER, PR and high level of HER-2, Ki67, p53, then provide the guiding basis for individualized treatment and prognosis evaluation of patients with breast cancer.
2017 Vol. 28 (2): 89-94 [Abstract] ( 746 ) HTML (1 KB)  PDF  (0 KB)  ( 227 )
95 Diagnostic value of combining MR diffusion weighted imaging and different sequences combinations in #br# breast benign and malignant lesions
LI Yu-chun, FENG Cui-lan, MENG Zhi-gang, LIANG Ding-jun
Objective: To evaluate the value of MR diffusion weighted imaging and different sequences combinations the qualitative diagnosis of breast benign and malignant lesions. Methods: A retrospective analysis of 71 cases(46 benign cases with 46 lesions, 29 malignant cases with 32 lesions) MRI data of patients with breast benign and malignant lesions diagnosed by surgery and pathology. Base on the pathological diagnosis as the gold standard, we use the four ways of diagnostic modality(T1WI+DWI, T2WI+DWI, DCE, DCE+DWI) to compare the sensitivity, specificity and accuracy of diagnosis for breast benign and malignant lesions. Results: The diagnose sensitivity of the T1WI+DWI, T2WI+DWI, DCE and DCE+DWI were 81.3%, 90.6%, 93.7%, 96.8%, and their specificity were 73.9%, 91.3%, 89.1%, 93.5% and their accuracy were 76.9%, 91%, 91%, 94.9%. Conclusion: The diagnosis of breast benign and malignant breast lesions in DCE combined DWI group has a higher sensitivity, specificity and accuracy of diagnosis. So that has a clinical value, is the best combinations diagnostic sequences. Non-enhancement combinations sequences has a certain advantages in the diagnosis, it could be used as a MRI technology to screening breast disease.
2017 Vol. 28 (2): 95-98 [Abstract] ( 805 ) HTML (1 KB)  PDF  (0 KB)  ( 210 )
99 Value on the therapeutic effectiveness of neoadjuvant chemotherapy in patients with #br# primary breast carcinoma by superb microvascular imaging
YUAN Hui, MA Yun, CHEN Hong-yan, TIAN Rui
Objective: To investigate the application value of the therapeutic effectiveness of neoadjuvant chemotherapy(NAC) in patient with primary breast carcinoma by superb microvascular imaging. Methods: Seventy-three primary breast carcinoma lesions were imaged by using superb microvascular imaging in 57 patients with post- and prior-NAC treatment. The maximum diameters, blood flow classification and hemodynomics parameter of lesion were studied. Result: The maximum diameters of 73 post-NAC treatment were less than those of prior-NAC treatment. The blood flow classification(majority, 0 or Ⅰ level) and blood flow parameters Vmax and RI of lesions in post-NAC treatment were lowered than those in prior-NAC treatment(P＜0.05). The effective rate were 79.5%(21 cases with complete response and 37 cases with partial response). This result was good consistency with pathology evaluate results. Conclusion: Superb microvascular imaging may evaluate therapeutic effectiveness of NAC in patients with primary breast carcinoma by using way of non-invasively, speed and effective method.
2017 Vol. 28 (2): 99-100 [Abstract] ( 804 ) HTML (1 KB)  PDF  (0 KB)  ( 188 )
101 Diagnostic value of MRI for mediastinal neurogenic tumors
LIU Wen-fei1, JIN Hang2, WU Jian-lin1, YU Jing1
Objective: To analyze the characteristics of MRI scan signal for mediastinal neurogenic tumors in order to enhance the understanding and diagnostic accuracy of the disease. Methods: There were 33 cases which were pathologically identified as mediastinal neurogenic tumors. Spin echo T1WI, fast spin echo T2WI, breath spoiled gradient echo T1WI MRI were used and retrospectively analyzed. Results: Among the 33 cases of mediastinal neurogenic tumor, there were 18 cases of neurilemmoma, ganglioneuroma in 7 cases, neurofibroma in 5 cases and 3 cases of paraganglioma. The boundary of the tumors was clear, mostly were round or oval. Through MRI scan, T1WI showed homogeneously low signal; T2WI showed slightly higher signal; the rest of the neurogenic tumors showed inhomogeneously high signal. Through dynamic enhanced scan, 10 cases of neurilemmoma were inhomogeneous slight enhancement in arterial phase and showed inhomogeneous delayed enhancement obviously in venous phase. Three cases of neurilemmoma were inhomogeneous enhancement obviously in arterial phase and showed continuous enhancement obviously in venous phase. Neurofibroma was homogeneous slight enhancement in arterial phase and showed even delayed enhancement obviously in venous phase. Ganglioneuroma showed slight and moderate homogeneous delayed enhancement. Paraganglioma showed inhomogeneous enhancement obviously in arterial phase and low enhancement in venous phase. Conclusion: MRI symptoms of mediastinal neurogenic tumors have some specific characteristics, which could be helpful for the correct diagnosis before operation.
2017 Vol. 28 (2): 101-104 [Abstract] ( 721 ) HTML (1 KB)  PDF  (0 KB)  ( 205 )
105 The value of trans-esophageal echocardiography and CT in the pre-operation of left atrial appendage occlusion
YU Zheng-chun, MA Xiao-jing, XIA Juan, LI Jing
Objective: To evaluate the value of trans-esophageal echocardiography(TEE) and CT in the pre-operation of left atrial appendage occlusion. Methods: One hundred and eighteen pre-operative TEE and CT results of left atrial fibrillation fitting left atrial appendage occlusion were selected to analysis retrospectively from May 2013 to April 2016. Results: One hundred and eighteen patients were enrolled, including 43 males and 75 females, mean age (55.6±5.8) years. TEE was shown 10 patients with thrombus in the left atrial appendage, CT was shown 5 patients filling defect in left atrial appendage. According to the shape of left atrial appendage, 4 types were individed: chicken wing type(56 cases, 51.9%), cauliflower type(22 cases, 20.3%), vane type(21 cases, 19.4%), cactus type(9 cases, 8.4%). Left atrial appendage orifice was classified into 3 types: oval type(95 cases, 88.0%), round type(8 cases, 7.4%), water-drop type(5 cases, 4.6%). Conclusions: TEE is an effective method to screen out left atrial appendage thrombosis patients in pre-operation of left atrial appendage occlusion which is better than CT, but CT examination provides more anatomical informations in pre-operation of left atrial appendage occlusion, so the combination of two examinations can provide more accurate support for the success of the operation.
2017 Vol. 28 (2): 105-108 [Abstract] ( 827 ) HTML (1 KB)  PDF  (0 KB)  ( 252 )
109 MSCTA features of spontaneous isolated superior mesenteric artery dissection
LIN Hong-dong, MA Wei-qiong, ZHOU Yu-xiang, TANG Run-hui
Objective: To summarize the MSCTA features and imaging classification of spontaneous isolated superior mesenteric artery dissection(SISMAD). Methods: Twenty-one cases of SISMAD were retrospectively analyzed through thin-slice enhanced and reconstructed CT images. Results: Based on the Yun classification of SISMAD, there were 12, 2, 7 and 0 cases of type Ⅰ, Ⅱa, Ⅱb and Ⅲ. Which fasle lumen and ture lumen were enhanced meanwhile, entry and re-entry of fasle lumen were found in near-end and far-end. There were near-end entry without far-end entry in 9 cases of type Ⅱ, which 7 cases were enhanced with near-end entry of fasle lumen and thromarbus were filled with far-end fasle lumen. Twenty-one cases of SISMAD were enlarged diameter of superior mesenteric artery(SMA) like an aneurysms. Seven cases were found calcified plaque in SMA wall, 1 case of calcified plaque moved inside SMA lumen. Five cases showed curved high density and fuzzy fat around SMA by non-enhanced scanning. Thirteen cases of intimal crevasse were located in ventral vascular wall of SMA, 5 cases located in left wall of true lumen, 3 cases located in right. Distance between the proximal intimal crevasse and orgin of SMA was 9～25 mm. Conclusion: SISMAD can be clearly showed imaging features and classification by MSCTA.
2017 Vol. 28 (2): 109-111 [Abstract] ( 697 ) HTML (1 KB)  PDF  (0 KB)  ( 186 )
112 The application value of MRI in the diagnosis of regional lymph node metastasis in rectal cancer
DAI Xin, XU Qing, YU Jing, LI Yan, SHI Hai-bin
Objective: To evaluate the application of MRI in the diagnosis of regional lymph node metastasis in rectal cancer. Methods: During the period from May to December 2015, 94 patients with pathologically-proved rectal underwent MRI were included. The clinical data were retrospectively analyzed. The short-axis diameter, margin, signal and ADC values of the target node and the signal of perirectal fat were observed and recorded. Patients were assigned to the malignant node or benign node group according to pathological analysis. Chi-square(χ2) trend test was used to test the margin, signal and the signal of perirectal fat of metastasizing lymph nodes and nonmetastasizing lymph nodes, short-axis diameter and ADC values were compared using the t-test. Multivariate analysis to determine independent significant individual variables by multiple Logistic regression analysis. ROC curve analysis was done to evaluate the diagnostic efficiency. Results: The margin, signal of lymph nodes and signal of perrectal fat showed correlation with the lymph node metastasis(P＜0.05). The short-axis diameter of metastatic nodes and non-metastatic nodes was (6.25±2.25) mm and(4.80±1.38) mm respectively, the differences between the two groups were significant(P＜0.05). The short-axis diameter, margin, signal and the signal of perirectal fat were proved to be significant independent predictors of lymph node metastasis by Logistic regression analysis. The AUC value showed that margin carried the highest credibility for the diagnosis of lymph node metastasis, and the next were the signal of perirectal fat and signal. Conclusion: It was helpful to improve the diagnosis of lymph node metastasis by considering the short-axis diameter, margin and signal of the lymph nodes and the signal of perirectal fat, especially the margin and the signal of perirectal fat.
2017 Vol. 28 (2): 112-115 [Abstract] ( 877 ) HTML (1 KB)  PDF  (0 KB)  ( 201 )
116 Application of multi-parametric magnetic resonance imaging in the diagnosis of early prostate cancer
ZHANG Xu-hui, LIANG Wen, QUAN Xian-yue, ZHANG Xu-chang, LIN Ting
 Objective: To evaluate the diagnostic value of multi-parametric MRI for early prostate cancer. Methods: One hundred patients with prostatic diseases were scanned with MRI, all cases were pathological diagnosis as the gold standard, and they underwent T2WI, DWI and DCEI. Four protocols were formed by combination of above three technologies: T2WI (protocol 1), T2WI+DWI(protocol 2), T2WI+DCEI(protocol 3), T2WI+DWI+DCEI(protocol 4). The image data was diagnosed and made contrast with pathological findings. The AUC value of each protocol in the diagnosis of prostate cancer was compared with Z-test, and the sensitivity, specificity and accuracy for each protocol were calculated. Results: In the four protocols, the sensitivity, specificity and accuracy for protocol 4 in the diagnosis of prostate cancer were the highest(92.6%, 88.9% and 90%), the sensitivity, specificity and accuracy for protocol 1 were the lowest(68.5%, 63.0% and 66%). The AUC value of 4 protocols in descending order: protocol 4(0.916), protocol 2(0.908), protocol 3(0.870) and protocol 1(0.697). There were significant differences in AUC values between protocol 1 and 2, protocol 1 and 3, protocol 1 and 4(P＜0.05). There were not significant differences in AUC values between protocol 2 and 3, protocol 2 and 4, protocol 3 and 4(P＞0.05). Conclusion: T2WI+DWI, T2WI+DCEI and T2WI+DWI+DCEI have highly diagnostic value for early prostate cancer, the clinical value of T2WI+DWI is higher than that of T2WI+DCEI, and T2WI+DWI+DCEI is the best diagnostic efficiency.
2017 Vol. 28 (2): 116-119 [Abstract] ( 798 ) HTML (1 KB)  PDF  (0 KB)  ( 177 )
120 A comparison of virtual touch tissue quantification and digital rectal examination for prostatic lesions
GONG Ji-jun, LIU Li, XUE Min, SHI Yu, WU Guo-ru, ZHANG Yan, TAO Ling-zhi
Objective: Virtual touch tissue quantification(VTTQ) is a new, promising technique for detecting the stiffness of tissues. The aim of this study is to compare the performance of VTTQ and digital rectal examination(DRE) in discrimination between prostate cancer(PCa) and benign prostatic hyperplasia(BPH). Methods: VTTQ was performed in 60 patients with suspected BPH and PCa before the prostate histopathologic examination. The shear wave velocity(SWV) at each nodular lesion was quantified by implementing an acoustic radiation force impulse(ARFI). The performance of VTTQ and DRE in discrimination between PCa and BPH was compared by the pathology. Results: The SWV values(m/s) were significantly greater in PCa and BPH than in normal prostate(2.97±0.42, 2.61±0.47 and 2.46±0.52). The area under the receiver operating characteristic curve(AUC) for VTTQ(SWV>2.87 m/s) to differentiate prostate nodules as benign hyperplasia or malignancy was 0.78, while it was 0.67 for DRE. The diagnostic sensitivity, specificity, PPV, NPV and accuracy were 80.0%, 66.7%, 74.3%, 72.0%, 79.2%, respectively for VTTQ(SWV>2.87 m/s), whereas they were 57.5%, 52.3%, 62.5%, 57.0%, 62.1% respectively for DRE. Conclusion: VTTQ can effectively detect the stiffness of prostate nodular lesions, which has a significantly higher performance than DRE in discrimination between PCa and BPH.
2017 Vol. 28 (2): 120-122 [Abstract] ( 671 ) HTML (1 KB)  PDF  (0 KB)  ( 214 )
123 Value of transvaginal three-dimensional ultrasound evaluating endometrial receptivity of #br# endometrial rectification in IVF-ET
CHEN Ling1, YU Jiao-jiao2, HU Bing1, ZHAO Yun2
 Objective: To analyze the endometrial impact of endometrial finishing technique in IVF-ET patients, discuss to improve endometrial receptivity and the clinical significance of the clinical pregnancy rate using transvaginal three-dimensional ultrasound. Methods: One hundred and three patients treated with IVF-ET at our hospital were collected. All patients had failed more than three times and had the indication of endometrial finishing surgery. Patients were divided into organize group(55 patients were implemented endometrial finishing surgery) and unstructured group(48 patients did not have the surgery). Detected endometrial volume, thickness, type, endometrial and subendometrial blood flow parameters(RI, PI, S?蛐D, VI, FI, VFI) by ultrasound in ET day and HCG day and tracked pregnancy outcomes. Results: There was no difference in the general situation between the two groups(P>0.05), no difference in endometrial volume and thickness between the two groups in ET day and HCG day(P>0.05). Endometrial blood flow(PI, RI, S?蛐D) in organize group were lower than the unstructured group(P<0.05), FI in organize group was higher than the unstructured group in ET day(P<0.05), before and after the endometrial finishing surgery, endometrial blood flow(PI, RI, FI) were different(P<0.05), the pregnancy rate in organize group was higher than the unstructured group. Conclusion: Endometrial finishing technique can improve endometrial blood flow and are helpful to improve embryo implantation and clinical pregnancy rate.
2017 Vol. 28 (2): 123-126 [Abstract] ( 548 ) HTML (1 KB)  PDF  (0 KB)  ( 220 )
127 Prenatal ultrasound diagnosis of fetal external ear
ZHOU Qiao-lan, WANG Feng-lan, DONG Jian-min, ZHANG Hui-juan, LI Jing, ZHANG Xue-song
 Objective: To explore the diagnosis value of fetal external ears by using ultrasound. Methods: Of 400 fetuses, each 100 cases were selected randomly during gestational 11～14 weeks, 16～20 weeks, 24～28 weeks and 32～36 weeks. Bilateral external ears were observed by using the multi-views and multi-angles of prenatal ultrasonography. To summarize the display rate, the best time and scan sections of ultrasound. Results: The fetal external ear was negatively correlated with gestational age(r=-0.994, P=0.006). With the increasing of gestational age, external ear acquisition rate was showed a downward trend. During gestational 11～14 weeks, it was showed the highest rate, and up to 100%, and the its lowest age was during gestational 32～36 weeks. The mastoid section coronal scan and foramen magnum coronal scan were the best sections during gestational 11～14 weeks of gestation. The left or right temporal parasagittal plane was the best sections to observe the morphology of fetal external ears. The mastoid section coronal scan, foramen magnum coronal scan and left or right temporal parasagittal plane was negatively correlated with gestational age, regression equation: Y=242.239-5.674X(r=0.938, P=0.018); Y=242.092-5.547X(r=0.944, P=0.016); Y=194.375-1.392X(r=0.605, P=0.021). According to the number of morphology the fetal external ear, gestational 16～20 weeks and gestational 24～28 weeks was the best period. Gestational 11～14 weeks display difference. Comparison of the total acquisition rate of fetal ear morphology in different gestational weeks, χ2=24.00, P=0.293. Conclusion: In different gestational weeks, the display rate of the fetal external ear is different, gestational 11～14 weeks is the highest in the display rate of the external ear.
2017 Vol. 28 (2): 127-129 [Abstract] ( 735 ) HTML (1 KB)  PDF  (0 KB)  ( 240 )
130 Diagnostic value of ultrasonography in different subtypes of rotator cuff tear
HAN Yang, LIU Liang, ZHAO Feng, CHEN Jie
 Objective: To explore the diagnostic value of high frequency ultrasound in the different subtypes classification of the rotator cuff tear. Methods: The full-thickness tear of supraspinatus tendon is divided into 4 types by using high frequency ultrasound. By comparing with the shoulder arthroscopy, we explore its application value in clinical practice. Results: Of 71 shoulder cases in 65 patients, 67 full-thickness tear of the supraspinatus tendon were confirmed by operation, and three were underestimated and one was overestimated by ultrasound. Of 67 full-thickness, 27 L-type, 17 U type(double U+L type 1), 15 giant tear and 8 crescent shaped types were comfired. The sensitivity and specificity of ultrasonography in the diagnosis of the whole layer tear of the tendon were 95.5% and 75%, and the total coincidence rate was 94.4%. Conclusion: High frequency ultrasound can be very good for classification of the rotator cuff tear. It is highly valuable for clinical treatment and surgical options.
2017 Vol. 28 (2): 130-132 [Abstract] ( 688 ) HTML (1 KB)  PDF  (0 KB)  ( 197 )
133 Retrograde approach via the popliteal artery for treating long and #br# chronic total occlusions in ipsilateral femoral-popliteal arteries
ZHENG Jia-he, CHANG Zhi-hui, WANG Chuan-zhuo, LIU Zhao-yu, GUO Qi-yong
Objective: To investigate the feasibility and application value via the popliteal artery for treating long and chronic total occlusions(CTO) in ipsilateral femoral-popliteal arteries. Methods: A retrospective analysis was undertaken of 26 patients who underwent retrograde recanalization via a popliteal artery access for long and CTO in ipsilated femoral-popliteal arteries. Success rate of retrograde puncture and femoral-popliteal artery recanalization were summarized. The complications and short-term clinical efficacy were also analyzed． Results: Technical success(puncture of the popliteal artery and femoral-popliteal artery recanalization) was achieved in all cases. The clinical symptoms improved significantly after operation. Compared with pre-procedure data, the ankle-brachial index(ABI) increased significantly from 0.32±0.13 to 0.82±0.15(P<0.05). Perioperative complications related to popliteal access included 1 pseudoaneurysm， 1 arterio-venous fistula and 3 hematomas in the popliteal region. Restenosis or occlusion were found in 4 patients during 6 months following-up. The primary patency at 6 months was 84.6%(22/26). Conclusion: Retrograde approach via the popliteal artery is a safe and effective technique for long and CTO in femoral-popliteal arteries, which can be considered as first choice after failed antegrade recanalization.
2017 Vol. 28 (2): 133-136 [Abstract] ( 790 ) HTML (1 KB)  PDF  (0 KB)  ( 158 )
137 Gray scale adjustment technology is helpful to determine the nature of thyroid nodules
ZHANG Gao-song, ZHENG Hui
Objective: To explore a kind of technology, which can make the two tissue boundary whose acoustic impedance coefficient is very close to display clearly. Methods: Randomly selected 77 cases to resection of thyroid nodules or puncture. Firstly, the routine examination method to obtain TI-RADS diagnosis and entry control group, using conventional with gray scale adjustment technology to calculate TI-RADS diagnosis and entry intervention group, when each patient in preoperative ultrasonography. The two groups were drawn into the form of ultrasound diagnosis. The postoperative pathological report of each patient was followed up. Results: Compared two groups of ultrasound diagnosis and pathologic report compliance, that routine with gray scale adjustment technology is better than conventional examination in accuracy, specificity and sensitivity, the difference is statistically significant. Conclusion: Ultrasound local gray scale adjustment technology can help doctors to determine the nature of the thyroid nodule ultrasound.
2017 Vol. 28 (2): 137-139 [Abstract] ( 678 ) HTML (1 KB)  PDF  (0 KB)  ( 179 )
140 Image quality and radiation dose of dual-energy scanning and single-energy scanning with#br# dual-source CT in pulmonary angiography
LUO Xian-li, LI Bang-guo, LIU Pan, SUN Hui, HUANG Ting-ting, WANG Meng, ZHANG Xue-mei
Objective: To evaluate image quality and radiation dose of dual-energy scanning protocol and conventional scanning protocol(single-energy scanning) with dual-source CT in pulmonary angiography and to investigate the optimal scanning protocols of dual-source CT pulmonary angiography. Methods: Two hundred and thirty-five patients with clinically suspected pulmonary embolism underwent flash dual-source CT pulmonary angiography were collected, and divided into three groups: group A(DE, 80/Sn140 kV)(n=77); group B(DE, 100/Sn140 kV)(n=80); group C(tube voltage was selected automatically by Care kV)(n=78). The CT attenuation values of pulmonary arteries(grade 1～3) and dorsal muscle, and background noise were measured. Corresponding signal to noise ratio(SNR) and contrast to noise ratio(CNR) were calculated. Meanwhile, two experienced radiologists assessed the image quality of the three groups. Image quality and radiation exposure were compared between groups, and P<0.05 was considered statistically significant. Results: CT attenuation values in bilateral upper lobe pulmonary artery have no difference significantly(P>0.05) between group A and group B/C. The value of the group B was lower than that of in group C(P<0.05), there was no significant difference(P>0.05) in others compares. Compared to the other of two groups, image noise in group A were higher than others, and while its corresponding CNR and SNR for all measured pulmonary arteries were lower than others group(P<0.05). The image quality meet the diagnostic requirements for pulmonary embolism in all groups, and the image quality score of three groups has no statistically significant difference(P>0.05) with good interobserver agreement. The image quality with good to excellent(1～2 score) grade of all subjective was more than 90%, and no significantly difference was between the groups(P>0.05). The values of CTDIvol, DLP, and ED were significantly lower in group A than that in group B and group C(P＜0.05), and the mean ED values of group A was lower 46.8% than that of group C. Conclusion: Compared with conventional scanning protocol in dual-source CTPA, the dual-energy scanning protocol (80/Sn140 kV) with the diagnostic image quality allows a significant radiation dose reductions.
2017 Vol. 28 (2): 140-144 [Abstract] ( 755 ) HTML (1 KB)  PDF  (0 KB)  ( 205 )
145 Application advancement of neoadjuvant chemotherapy evaluation of breast cancer in different MRI technology
XIONG Fa-kui, GONG Liang-geng
Breast cancer is one of the most common malignant tumors of women, so the early curative effect evaluation can improve the quality of life and the prognosis of patients. MRI imaging has been widely used for the diagnosis and curative effect evaluation of breast cancer. The different MRI technology in the evaluation of breast cancer after neoadjuvant chemotherapy were reviewed.
2017 Vol. 28 (2): 145-147 [Abstract] ( 726 ) HTML (1 KB)  PDF  (0 KB)  ( 423 )
148 Disseminated nontuberculous mycobacterial infection: report of one case
YANG Jia, LV Sheng-xiu, LI Chun-hua
2017 Vol. 28 (2): 148-149 [Abstract] ( 802 ) HTML (1 KB)  PDF  (0 KB)  ( 171 )
150 MDCT features of gastric inflammatory fibroid polyp: report of one case
CAI Er-peng, HUANG Guo-quan, WANG Jian-wen, ZHAO Jian
2017 Vol. 28 (2): 150-151 [Abstract] ( 565 ) HTML (1 KB)  PDF  (0 KB)  ( 194 )
151 Ultrasound detection of a holoprosencephaly with proboscis and cyclopia: report of one case
HE Li-hong, ZHA Xiao-xia
2017 Vol. 28 (2): 151-152 [Abstract] ( 2869 ) HTML (1 KB)  PDF  (0 KB)  ( 171 )
Copyright © Editorial Board of JOURNAL OF CHINA MEDICAL IMAGING
Supported by:Beijing Magtech