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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

2019 Vol. 30, No. 6 Published: 2019-06-20

	381	An investigation of dual-detector SPECT measuring the function of parotid glands by anterior or posterior scanning
		ZENG Yu, LI Ya-ming, LI Xue-na, LIU Xiao-feng, DU Bu-lin, LI De-shun
		DOI: 10.12117/jccmi.2019.06.001
		Objective: To investigate the difference of the functional parameters of the parotid glands obtained by the anterior and posterior scanning in SPECT salivary glands scintigraphy(SGS). Methods: Sixty-four patients underwent SGS, which was performed by dual-detector SPECT with 99TcmO4-. The parotid ROI was delineated to obtain the net counts of parotid glands(Countnet). The 15 min uptake ratio(UR15) of the parotid gland, and the excretion fraction(EF) after acid stimulation at the anterior and posterior imaging were calculated. The Wilcoxon rank-sum test was used to compare the difference in the 15 min net counts(Countnet15), the maximum net count before acid stimulation(Countmax) of the parotid glands, the UR15 and EF of the anterior and posterior scanning, respectively. Results: In the anterior and posterior images, the Countnet15 of the left parotid gland were 2.46±1.29 vs. 2.92±1.70(Z=-3.42, P=0.01), and the right ones were 2.82±1.55 vs. 3.06±1.76, respectively(Z=-2.25, P=0.03). The Countmax of left parotid gland were 2.79±1.50 vs. 3.23±1.87(Z=-3.09, P＜0.01), and the right ones were 3.20±1.69 vs. 3.48±1.92(Z=-2.17, P=0.03). The UR15 of the left parotid at the anterior and posterior images were (1.71±0.76)% vs. (2.74±1.38)%(Z=-6.34, P＜0.01), and the right were (1.97±1.01)% vs. (2.86±1.45)%(Z=-6.11, P＜0.01). The EF of the left parotid were (74.84±14.81)% vs. (76.61±15.91)% (Z=-3.92, P＜0.01), and the right were (71.17±15.34)% vs. (71.48±14.90)% (Z=-4.68, P＜0.01). The Countnet15 and Countmax of both parotid glands in the posterior images were significantly higher than the anterior ones. The anterior UR15 of both parotid glands were significantly higher than that in the posterior ones. The EF of both parotids in the posterior images were significantly lower than that in the anterior. Conclusion: There are differences in the uptake and excretion of parotid glands dynamic imaging between the anterior and posterior scanning. The difference is caused by the osseous attenuation of the mandibular branch.
		2019 Vol. 30 (6): 381-385 [Abstract] ( 427 ) HTML (1 KB) PDF (0 KB) ( 47 )

	386	Comparative study of ultrasound-guided percutaneous microwave ablation and endoscopic thyroidectomy for thyroid papillary microcarcinoma
		SHEN Yan, CAI Xiao-yan, DONG Jiang-nan, LIU Miao, HE Jie, WAN Yong-lin, WU Shu, DING Jun, FU Xiao-hong
		DOI: 10.12117/jccmi.2019.06.002
		Objective: To evaluate the efficacy and safety of ultrasound-guided percutaneous microwave ablation(US-PMWA) in papillary thyroid microcarcinoma(PTMC), and compare with endoscopic surgery(ET). Methods: Twenty patients with US-PMWA were analyzed retrospectively. Conventional ultrasound, contrast-enhanced ultrasound and thyroid function tests were performed at 1-, 3-, 6- and 12- months to evaluate the efficacy and safety of US-PMWA. Thirty-eight patients underwent endoscopic thyroidectomy for PTMC. The postoperative hospital stay, cost, and complications were compared with each other in two groups. Results: The volume of 20 nodules with US-PMWA reduced during follow-up. No suspicious metastatic lymph nodes were found in the neck. The thyroid function indexes were within normal reference range before and after microwave ablation. The average hospital-stay days, hospitalization costs and complication rate with US-PMWA were (1.70±0.57) days, (14 695.45±1 637.35) yuan and 5.0%(1/20). The hospital-stay days, hospitalization costs and complication rate with ET were (4.78±1.03) days, (20 596.71±2 192.25) yuan and 10.53%(4/38). The hospitalization days and costs were different between two groups(P<0.05), whereas the complication rate was not(P>0.05). Conclusion: With its minimally invasion, beauty and convenience, US-PMWA is suitable for PTMC without lymph nodes and distant metastasis.
		2019 Vol. 30 (6): 386-389 [Abstract] ( 420 ) HTML (1 KB) PDF (0 KB) ( 48 )

	390	The application value of Dixon-VIBE technique in cervical enhanced scanning
		ZHANG Yan-yan, SONG Zhen-yu, LIU Yong, JIE Ping-ping, WANG Ou-cheng
		DOI: 10.12117/jccmi.2019.06.003
		Objective: To evaluate the value of Dixon-VIBE technique in cervical enhanced scanning. Methods: Eighty patients underwent cervical contrast-enhanced MRI scanning were divided into four groups randomly, using the Simens Skyra 3.0T MR imaging instrument and the 16 channels head and neck coil for the routine axial and coronal scanning and enhanced scanning. T1-FS-TSE, T1-Dixon-TSE, T1-FS-VIBE and T1-Dixon-VIBE(in turn as S1, S2, S3, S4) were performed in enhanced scanning. All post-enhancement images were evaluated and analyzed subjectively and objectively. The subjective evaluation includes resolution of soft tissue, fat suppression homogeneity and artifact of blood vessels. The objective evaluation includes image noise, signal to noise ratio(SNR) and contrast to noise ratio(CNR). Result: The difference of resolution of soft tissue, fat suppression homogeneity and vascular artifact control in the four groups were statistically significant(P<0.01). The difference of image noise, SNR and CNR among different parameter setting groups were statistically significant(P<0.01). Conclusion: The Dixon-VIBE technique can improve overall image quality and provide more signifcant information for the clinical diagnosis.
		2019 Vol. 30 (6): 390-393 [Abstract] ( 312 ) HTML (1 KB) PDF (0 KB) ( 43 )

	394	Value of tissue elastography in the prediction of neoadjuvant chemotherapy in breast cancer
		HU Li-hua, MA Yuan, LIU Xiao-zhi, MA Ying
		DOI: 10.12117/jccmi.2019.06.004
		Objective: To explore the value of real-time tissue elastography(RTE) in predicting the efficacy of neoadjuvant chemotherapy(NAC) in breast cancer. Methods: A total of 60 patients with breast cancer who received NAC in our hospital were recruited. According to the pathological results, 47 patients were included in the significant response group and 13 patients were in the non-significant response group. The maximum diameter and strain ratio(B/A ratio) of lesions before and after NAC for 1, 2, 4 and 6 weeks was recorded and compared. The ROC curve of the lesion diameter and strain rate ratio(B/A value) was used to predict the value of NAC efficacy. Results: The lesions in the two groups showed a honeycomb-like reduction after NAC. The blue color in the elastic image gradually decreased, and the green color gradually increased. Repeated measurement analysis of variance found that the maximum diameter and B/A value showed a downward trend within 6 weeks of NAC treatment. The maximum diameter and B/A value in the significant response group were significantly lower than the non-significant response group before and after the NAC. There was an interaction in the maximum diameter and B/A value between the significant response group and the non-significant response group. The above differences were statistically significant(all P<0.05). The AUC of ΔB/A value at 2 weeks of NAC was maximal(0.944), and the best diagnostic point was 5.64. The sensitivity was 92.31% and the specificity was 87.23%. Conclusion: ΔB/A value at 2 weeks of NAC has certain value in predicting the therapeutic effect of NAC in breast cancer, and it is expected to be applied in clinical diagnosis.
		2019 Vol. 30 (6): 394-397 [Abstract] ( 388 ) HTML (1 KB) PDF (0 KB) ( 48 )

	398	Clinical application of preoperative CT guided Hook-wire localization in pulmonary nodules difficult detected during video-assisted thoracoscopic surgery
		GAO De-pei, DONG Xing-xiang, LI Zhen-hui, FENG Jun, TIAN Chuan, ZHANG Da-fu
		DOI: 10.12117/jccmi.2019.06.005
		Objective: To explore the clinical value of Hook-wire localization under CT guidance before operation of small pulmonary nodules(≤10 mm), which are difficult to be detected in video-assisted thoracoscopic surgery, and to discuss the necessity and feasibility of active minimally invasive surgery for small nodules. Methods: From December 2017 to June 2018, a total of 45 patients underwent preoperative CT guided Hook-wire(Accura TM BLN 21 ga×10 cm) localization and underwent video assisted thoracoscopic surgery. Results: Forty-five patients(22 males and 23 females) had a total of 45 micro nodules. There were 3 nodules in anterior segment and 3 in apicoposterior segment of left upper lobe, 3 in lateral basal segment and 5 in posterior basal segment of left inferior lobe, 8 in anterior segment, 2 in apical segment and 6 in posterior segment of right upper lobe, 3 in right middle lobe, 4 in dorsal segment, 2 in lateral basal segment, 2 in anterior basal segment, 4 in posterior basal segment of right inferior lobe. There were 13 solid nodules, 22 pure ground-glass nodules and 10 mixed ground-glass nodules. There were 17 nodules with diameter between 5 mm to 10 mm, 28 nodules less than 5 mm. The success rate of Hook-wire guided by CT was 95.56%, and the rate of video assisted thoracoscopic resection was 100%. Histological findings were 25 cases of adenocarcinoma in situ, 8 cases of inflammatory lesions, 12 cases of benign tumors and tumor like lesions. Conclusion: CT guided Hook-wire pulmonary micro nodules location have high accuracy and slight complications before operation. It is helpful to detect and remove the lesion in time, shorten the time of operation, and is beneficial to the early recovery of the patients, and it is worthy of clinical promotion.
		2019 Vol. 30 (6): 398-400 [Abstract] ( 372 ) HTML (1 KB) PDF (0 KB) ( 51 )

	401	Comparative analysis of imaging findings and pathology of cavernous hemangioma of mediastinum(4 cases report)
		LI Dong-xue, WANG Yu-quan, WANG Rong-pin, LIU Jiang-yong, TANG Lei, ZENG Xian-chun
		DOI: 10.12117/jccmi.2019.06.006
		Objective: To investigate and discuss the imaging features of cavernous hemangiomas of mediastium(CHM). Methods: The CHM images of four patients who underwent force CT enhanced scan were retrospectively analyzed, and then showed the direct signs of the disease through various CT post-processing reconstruction techniques. One of them underwent magnetic resonance imaging. Results: The mass was located in the anterior, middle, posterior mediastinum and mediastinal multiregion, each containing one case. Three lesions were unevenly distributed, and calcification or vein stone was found by CT scanning. One was homogeneous, and flow void of the vessels was identified by MRI examination. The boundary is clear in three cases, and the boundary of one case is unclear. In four cases of CT enhanced scan, mild inhomogeneity was enhanced and delayed scan was further enhanced, of which two cases were enhanced by vascular lake like, and abnormal drainage veins were found in four cases. Conclusion: The CT enhancement scan is of great value and the post-processing technique can show more details for CHM lesions. CHM image characteristics can be summarize as delayed enhancement, with calcification or vein stone, abnormal drainage vein, and vascular lake enhancement. T2WI fat suppression image is characterized by high signal.
		2019 Vol. 30 (6): 401-404 [Abstract] ( 394 ) HTML (1 KB) PDF (0 KB) ( 48 )

	405	Three-dimensional full-volume imaging was used to evaluate the left ventricular volume and contractile function of normal adults in different ages
		LIU Jie, PENG Xue-lian, LIANG Shan
		DOI: 10.12117/jccmi.2019.06.007
		Objective: Full-volume imaging(FVI) was used to detect the synchronism of left ventricular volume and ventricular systolic function in normal adults of different ages, and to explore the influence of age on it. Methods: In the hospital physical examination center, there were 126 healthy adults on examination who were divided into the youth group(43 cases, 21 male and 22 female, age 18~45 years old), the middle-aged group(42 cases, 22 male and 20 female, 46~64 years old) and elderly group(41 cases, 22 male and 19 female, age 65 years old or higher) by age. After routine echocardiography, conventional echocardiography values were obtained. After connecting with the electrocardiogram, a 4V probe was used to collect the dynamic four-chamber cardiotomy surface of the apex of the heart and obtain the full-volume image of the left ventricle for online with FVI analysis. Results: Compared with the youth group, the measured values of M-type ultrasound ejection fraction(EF) in the middle-aged and elderly groups gradually decreased with the increase of age, and the difference was statistically significant(P<0.05). Compared with the youth group, the SV of each stroke in the middle-aged group and the elderly group gradually decreased with the increase of age, and the difference was statistically significant(P<0.05). The total volume EF measured value decreases with age, which is related to the M-type measured value. The correlation coefficient is 0.415. Compared with young and middle-aged group, the systolic dyssynchrony index(SDI), dispersion in end systole(DISPES), pre-contraction time volume(Pre Contr) was statistically increased in elderly group(P<0.05). Conclusion: As the age increases, the EF value decreases and the risk of left ventricular systolic dyssynchrony increases.
		2019 Vol. 30 (6): 405-408 [Abstract] ( 345 ) HTML (1 KB) PDF (0 KB) ( 56 )

	409	Evaluation of left ventricular regional systolic function in patients with early chronic kidney disease by three-dimensional speckle tracking echocardiography
		FAN Yi-ning, REN Wei-dong, JIANG Ke-xin, LUAN Zhao-xia, ZHANG Ying
		DOI: 10.12117/jccmi.2019.06.008
		Objective: Left ventricular regional systolic function was evaluated in patients with early stage chronic kidney disease(CKD) using three-dimensional speckle tracking echocardiography(3D-STE). Methods: From June 2017 to September 2018, 40 patients with early CKD and 26 healthy volunteers(control group) were enrolled in our hospital. The patients were divided into CKD stage 2, CKD stage 3 and control group according to glomerular filtration rate, including 20 patients with CKD stage 2 and 20 patients with CKD stage 3. Conventional two-dimensional echocardiography and 3D-STE were performed, and the differences in parameters between the groups were compared. Results: ①In the CKD stage 2 group and control group, the strain values of apicallateral(AL), apicalseptum(AS), midinferior(MI), midanteroseptal(MAS), basalanterior(BA), basalanteroseptal(BAS), and basalposterior(BP) strain values were significantly reduced in systolic longitudinal strain(SLS), systolic area strain(SAS), systolic circumferential strain(SCS), systolic radial strain(SRS)(P<0.05); ②In the CKD stage 3 group and the CKD stage 2 group, the apex(Apex), AS, and midanterior(MA) strain values were significantly reduced in SLS, SAS, SCS, and SRS(P<0.05). There are more segmental differences in SLS. Conclusion: 3D-STE can be used to evaluate the left ventricular regional systolic function in patients with early CKD, and SLS is a sensitive index.
		2019 Vol. 30 (6): 409-412 [Abstract] ( 388 ) HTML (1 KB) PDF (0 KB) ( 56 )

	413	Evaluation of 3.0T MR NATIVE True-FISP sequence and VIBE sequence in hepatic portal venography: a comparative study
		ZHANG Bei-bei, CHEN Liang, LIU Yu-jia, LIU Hai-rong, ZHANG Lin, TIAN Chun-mei
		DOI: 10.12117/jccmi.2019.06.009
		Objective: To evaluate the application values of 3.0T MR NATIVE True-FISP sequence in hepatic portal venography by comparing with the research of contrast-enhanced magnetic resonance angiography(MRA) of the hepatic portal vein. Methods: Magnetic resonance enhancement imaging and NATIVE True-FISP sequence hepatic portal vein imaging were performed in 17 patients with suspected hepatic lesions in our hospital. The scanned images were subjectively scored by two deputy directors MR diagnosticians for the display of the portal vein and its branches, and compared the differences between the two examination methods for the portal vein were. Results: Fourteen patients completed the examination, while the other three did not because of trouble breathing. The NATIVE True-FISP sequence showed that its image quality of portal vein had no significant statistical difference(P>0.05) with dynamic contrast-enhanced MRA. Conclusion: 3.0T MR NATIVE True-FISP sequence can achieve similar effects with dynamic contrast-enhanced MRA in hepatic portal vein imaging.
		2019 Vol. 30 (6): 413-415 [Abstract] ( 396 ) HTML (1 KB) PDF (0 KB) ( 46 )

	416	Application value of liver and spleen stiffness measured by real-time shear wave elastography combined with hepatic steatosis index in diagnosis of hepatic steatosis
		GUO Yun-lei, RUAN Li-tao, DANG Ying, BAI Xiao-fang, CHEN Hong, WANG Xiang, LI Ning, LI Yue-jiao
		DOI: 10.12117/jccmi.2019.06.010
		Objective: To study the application value of liver and spleen stiffness measured by real-time shear wave elastography(SWE) combined with hepatic steatosis index(HSI) to diagnosis the severity of hepatic steatosis in non-alcoholic fatty liver disease(NAFLD). Methods: Patients who met the inclusion criteria and treated at the First Affiliated Hospital of Xi’an Jiaotong University from January 2017 to June 2018 were included. Referring to the upper abdominal CT scan results, we divided the included patients into four groups as: control group and mild, moderate, severe fatty liver groups. Comparing liver stiffness(LS) and spleen stiffness(SS) measured by SWE and HSI between groups was performed. Calculate the ROC curves of single and joint indicators for diagnosis hepatic steatosis. Results: LS, SS and HSI were all significantly different among groups(P<0.05). After comparing between any two means, we found LS, SS and HSI have poor ability to identify adjacent levels of fatty liver. So we just calculated the ROC curves for diagnosing moderate to severe fatty liver. The area under the ROC curves(AUROC) were 0.895±0.030, 0.730±0.041 and 0.788±0.036(P<0.05) respectively. The critical values were 7.35 kPa, 23.65 kPa and 36.32 respectively. Finally, we calculated the joint indicators’ ROC curves. The AUROC of LS+HSI was 0.904±0.028(P<0.05), the sensitivity was 88.3% and the specificity was 87.0%. The AUROC of SS+HSI was 0.824±0.033(P<0.05), the sensitivity was 75.0% and the specificity was 77.2%. Conclusion: LS and SS measured by SWE combine with HSI can accurately detect moderate to severe NAFLD. LS+HSI had the highest diagnostic performance than others with a good clinical value.
		2019 Vol. 30 (6): 416-420 [Abstract] ( 481 ) HTML (1 KB) PDF (0 KB) ( 58 )

	421	Application value of real-time shear wave elastography in diagnosis of biliary atresia and cholestasis
		LIU Qin, SU Ying-zi, REN Hong-yan, ZHANG Wei-wei, MA Ya, WANG Zheng-rong
		DOI: 10.12117/jccmi.2019.06.011
		Objective: To evaluate the accuracy of ultrasonic shear wave elastography in detecting biliary atresia and cholestasis in measuring the liver stiffness of infants. Methods: Color Doppler ultrasound diagnostic apparatus, SC6-1 convex array probe and SL10-2 linear array probe were used to switch to the SWE mode after selecting the appropriate incision in the right intercostal space of infants to avoid the large intrahepatic pipe structure, the elastic imaging sampling frame placed in the right lobe Ⅴ, Ⅵ subhepatic 0.5 cm within the liver parenchyma. Quantitative detection of Q-box diameter of 15~20 mm circular area was selected in the imaging area to display and record the mean of liver elastic modulus in the detection area. Each of the infants was tested 5 times at the same site, and the mean was taken. The ANOVA was used to compare the liver stiffness values of biliary atresia group, infant hepatitis group and control group. Receiver operating characteristic curve(ROC curve) was used to determine the diagnostic boundary value between the liver stiffness value of biliary atresia and infantile cholestasis. Results: The liver stiffness values of SC6-1 probe detection of biliary atresia, infantile cholestasis and normal control infant liver stiffness values were (15.8±8.9) kPa, (8.4±2.1) kPa, (4.9±0.6) kPa. The liver stiffness values of SL10-2 probe detection of biliary atresia, cholestasis and normal control infants were (13.5±7.7) kPa, (7.5±1.9) kPa, (4.4±0.6) kPa. When the liver stiffness detected by the SC6-1 probe was 8.85 kPa, the ROC curve diagnostic sensitivity and specificity of identifying the biliary atresia and cholestasis were 100% and 75% respectively. When the liver stiffness detected by the SL10-2 probe was 7.60 kPa, the ROC curve diagnostic sensitivity and specificity of identifying the biliary atresia and cholestasis were 92% and 75% respectively. Conclusion: Real-time shear wave elastography can effectively identify infants with biliary atresia and infantile cholestasis.
		2019 Vol. 30 (6): 421-424 [Abstract] ( 431 ) HTML (1 KB) PDF (0 KB) ( 50 )

	425	Application and comparison of percutaneous transluminal renal stent in transplant renal artery stenosis and atherosclerotic renal artery stenosis
		LV Chao-yang, GAO Kun, HUANG Qiang, WANG Jian-feng
		DOI: 10.12117/jccmi.2019.06.012
		Objective: To evaluate and compare the value of percutaneous transluminal renal stent(PTRS) in the treatment of transplant renal artery stenosis(TRAS) and atherosclerotic renal artery stenosis(ARAS). Methods: Thirty cases selected from TRAS and ARAS in 2010—2017 in our hospital, divided into group TRAS and group ARAS. Statistical analysis was performed on creatinine, systolic blood pressure, and postoperative restenosis before and after stent implantation. The systolic blood pressure and postoperative restenosis were compared between two groups and the restenosis of the two groups was followed up. Results: For group TRAS, creatinine and systolic blood pressure were improved postoperatively, creatinine and systolic blood pressure were (204.1±58.3) mmol/L and (167±18) mmHg(1 mmHg=0.133 kPa) before operation, and decreased to (119.8±43.1) mmol/L and(136±12) mmHg(P<0.05) after 3 months, decreased to (116.1±27.6) mmol/L(P<0.05) and (137±9) mmHg(P<0.05) after 1 year, decreased to (118.6±30.2) mmol/L(P<0.05) and (133±8) mmHg(P<0.05) after 3 years. The statistically difference was significantly performed between preoperative and postoperative results(P＜0.05). For group ARAS, creatinine and systolic blood pressure were improved postoperative, creatinine and systolic blood pressure were (101.2±11.3) mmol/L and (165±20) mmHg before operation, and decreased to (100.3±21.2) mmol/L(P＞0.05) and (142±10) mmHg(P<0.05) after 3 months, decreased to (81.3±23.4) mmol/L(P＞0.05) and (141±17) mmHg(P<0.05) after 1 year, decreased to (97.0±18.1) mmol/L(P＞0.05) and (144±20) mmHg(P<0.05) after 3 years. For the restenosis after the operation, the proportions of stent restenosis in group TRAS and group ARAS were 13.3% and 6.7% respectively after 6 months. The proportions of moderate and severe renal artery stenosis in group TRAS and group ARAS were 14.3% and 25.0% respectively after 3 years. The statistically difference was significantly performed between preoperative and postoperative results(P＜0.05). Conclusion: PTRS has good clinical efficacy for ARAS patients and TRAS patients. Compared with ARAS patients, PTRS has relatively lower restenosis rate in TRAS patients.
		2019 Vol. 30 (6): 425-428 [Abstract] ( 607 ) HTML (1 KB) PDF (0 KB) ( 63 )

	429	Diagnostic value of preoperative T staging of rectal cancer patients by alone and combined using intracavitary probes transrectal ultrasonography
		YANG Pu-xu, WANG Xue-mei, BIAN Dong-lin, HUANG Kun
		DOI: 10.12117/jccmi.2019.06.013
		Objective: To investigate the efficiency of combined using head scanning and 360° intracavitary probe transrectal ultrasonography(TRUS) in the diagnosis of T staging in rectal cancer patients. Methods: Sixty-six patients were from the department of ultrasound of our hospita from January 2016 to April 2017, who were all rectal cancer patients proved by pathology after surgery. Using Hitachi Pre ultrasonic diagnostic instrument, probe using head scanning intracavitary probe(4～8 MHz) and ring array 360° probe(5～10 MHz), two kinds of probes were used in transrectal ultrasound examination of the 66 cases of rectal cancer patients before surgery. After the probe was inserted into the patient’s anus, by moving and rotating probe method the levels of the tumor infiltrating the intestinal wall, and the postoperative pathological T staging of the patients was obtained by the HIS system, use higher staging when the stages were inconsistent. The accuracy of ultrasonic uT staging with the results of postoperative pathological T staging was compared. For the comparison of the diagnostic efficiency of ultrasonic staging and pathological T staging, the Kappa analysis method was used for consistency analysis of single and combined using two kinds of probes. The greater the Kappa value, the higher the diagnostic consistency was. Chi square analysis was used to compare the diagnostic effectiveness of the two probes respectively, P<0.05 has statistical significance. Results: Sixty-six cases of rectal cancer patients were included in this study, using head scanning intracavitary probe T staging. Eleven patients were overstage and 7 patients were lack of staging, accuracy rate was 72.7%(k=0.625). Using 360° intracavitary probe T staging 6 patients were overstage and 9 patients were lack of staging, accuracy rate was 77.2%(k=0.690). Combined using the two probe T staging, 4 patients were overstage and 3 patients were lack of staging, accuracy rate was 89.3%(k=0.855). Compared with head scanning probe and two kinds of probe combined result was χ2=7.697 and P=0.020, compared with 360° probe and two kinds of probe combined result was χ2=7.701 and P=0.006. And the Kappa value with combined using two kinds of probe T staging compared with pathological results was significantly higher than that of the Kappa value head scanning intracavitary probe and 360° intracavitary probe were used alone compared with T staging and pathological, and the accuracy rate of T staging compared with pathological T staging using head scanning and 360° intracavitary probe was statistically significant different with the accuracy rate of the T staging of combined using the two kinds of probe. Conclusion: The combined using of head scan and 360° intracavitary probe can improve the accuracy of preoperative T staging for rectal cancer patients, which is helpful for assisting doctors to develop reasonable treatment plan and improve the accuracy of preoperative T staging of rectal cancer.
		2019 Vol. 30 (6): 429-432 [Abstract] ( 327 ) HTML (1 KB) PDF (0 KB) ( 56 )

	433	Correlation analysis of fetal chromosome copy number variation and prenatal ultrasound abnormality
		TANG Zhong-feng, LIN Xiao-juan, YANG Lei, SONG Xiao-yu, WU Ju, DAI Wei-si, SUN Qing-mei
		DOI: 10.12117/jccmi.2019.06.014
		Objective: To investigate the correlation between abnormal structure of prenatal ultrasound and chromosome copy number variation(CNV), so as to provide a suitable prenatal diagnosis strategy for pregnant women with abnormal structure in pregnancy. Methods: A retrospective analysis was carried out in 837 pregnant women with high throughput sequencing of chromosomes in our hospital. Through different prenatal diagnostic indications, the correlation between abnormal structural indications of ultrasound examination and the CNV of high throughput sequencing in pregnancy was evaluated. Results: The gestational ultrasonic indications in the CNV of high throughput sequencing were 79.4%. Compared with the previous single fetal chromosome karyotype analysis, 4.1% chromosomal abnormalities could be found by high throughput sequencing CNV detection. Conclusion: The abnormal ultrasound structure during pregnancy or the soft indexes of multiple ultrasound suggests the analysis of fetal chromosome karyotype and high throughput sequencing CNV detection is necessary, which can improve the prenatal diagnosis rate and decrease the incidence of birth defects.
		2019 Vol. 30 (6): 433-436 [Abstract] ( 370 ) HTML (1 KB) PDF (0 KB) ( 49 )

	437	Diagnostic value of SPECT/CT for pain reason after total knee arthroplasty
		ZHANG Bin-qing, SONG Qing-feng, LIU Yu-ke, GUO Hui-li
		DOI: 10.12117/jccmi.2019.06.015
		Objective: To investigate the diagnostic value of SPECT/CT for pain reason after total knee arthroplasty. Methods: From October 2012 to June 2016, 51 patients who failed to find the pain reasons by anatomical imaging(DR, CT) after total knee arthroplasty were examined by 99mTc-MDP SPECT/CT fusion imaging. The final diagnoses were made according to surgery, imaging results, or treatment outcome. All patients were followed up at least 6 months. Diagnostic efficiency of SPECT/CT was calculated. Results: Thirty-five(68.63%) in 51 cases had positive findings by SPECT/CT imaging. Thirty-two cases were true positive, including 17 cases of aseptic loosening(femoral loosening in 6 cases, tibial plateau loosening in 7 cases, both loosening in 4 cases), 6 cases of infectious loosening, patellofemoral joint disorders in 9 cases. Three cases of false positive, SPECT/CT imaging showed aseptic loosening, follow-up confirmed as infection. Sixteen cases showed negative (including false negative in 2 cases, the remaining 14 cases of non-prosthesis and bone-derived pain). For patients with unexplained pain after total knee arthroplasty, the sensitivity of SPECT/CT for the diagnosis of prosthetic or bone-derived pain was 91.43%(32/35), specificity was 87.5%(14/16), and the coincidence rate was 86.49%(32/37). Conclusion: When DR and CT imaging failed to diagnose the pain reason after total knee arthroplasty, SPECT/CT imaging can provide valuable reference information for clinical.
		2019 Vol. 30 (6): 437-440 [Abstract] ( 365 ) HTML (1 KB) PDF (0 KB) ( 47 )

	441	Diagnostic performance of intratumoral cystic degeneration on conventional CT imaging for parotid gland tumors
		ZHU Xiao-shan, PENG Juan, LUO Tian-you, LV Fa-jin, LI Yong-mei, ZHANG Ya-juan
		DOI: 10.12117/jccmi.2019.06.016

		2019 Vol. 30 (6): 441-443 [Abstract] ( 288 ) HTML (1 KB) PDF (0 KB) ( 45 )

	444	Analysis of MRI features of primary extra gastrointestinal stromal tumor in reproductive system
		ZHAO Rui-chen, GAO Xue-mei, CHEN Chen, HUANG Meng-yue, CHENG Jing-liang
		DOI: 10.12117/jccmi.2019.06.017

		2019 Vol. 30 (6): 444-446 [Abstract] ( 420 ) HTML (1 KB) PDF (0 KB) ( 50 )

	447	Schwannoma of the nasal cavity and paranasal sinus: report of one case
		HUANG Wei, WU Ying-hang, WEI Zai-rong, ZHANG Gao-feng
		DOI: 10.12117/jccmi.2019.06.018

		2019 Vol. 30 (6): 447-448 [Abstract] ( 383 ) HTML (1 KB) PDF (0 KB) ( 49 )

	448	Ultrasonic report of heterotemporal breast malignant lymphoma: report of one case
		ZHU Yan-yan, ZENG Shu-e, LI Fang
		DOI: 10.12117/jccmi.2019.06.019

		2019 Vol. 30 (6): 448-449 [Abstract] ( 395 ) HTML (1 KB) PDF (0 KB) ( 58 )

	449	Echocardiography diagnosis of left ventricular hypertrophy caused by multiple factors: report of one case
		LIU Xin-yao, WANG Xiao-cong, LI Xiao-dong, ZHANG Yan-li, WANG Xue-yao
		DOI: 10.12117/jccmi.2019.06.020

		2019 Vol. 30 (6): 449-451 [Abstract] ( 397 ) HTML (1 KB) PDF (0 KB) ( 62 )

	451	Retroperitoneal abscess in neonate: report of two cases
		CHEN Xin, LI Xin, ZHAO Bin, WANG Chun-xiang
		DOI: Ｒ572；Ｒ814.42

		2019 Vol. 30 (6): 451-452 [Abstract] ( 282 ) HTML (1 KB) PDF (0 KB) ( 49 )

	452	Multiple visceral artery aneurysm combined with right common iliac artery dilation: report of one case
		JIANG Gong-jun1, ZHU Yue-xiang2, CUI Shu-jun2
		DOI: 10.12117/jccmi.2019.06.022

		2019 Vol. 30 (6): 452-453 [Abstract] ( 355 ) HTML (1 KB) PDF (0 KB) ( 59 )

	454	Intraductal papillary mucinous carcinoma of the pancreas: report of one case
		YANG Tong, WANG Xue-mei, LIU Yan-jun, ZHONG Xin-ping
		DOI: 10.12117/jccmi.2019.06.023

		2019 Vol. 30 (6): 454-455 [Abstract] ( 382 ) HTML (1 KB) PDF (0 KB) ( 50 )

	455	Intramuscular granular cell tumor of the thigh: report of one case
		ZHANG Kai1, ZHANG Li-na2, WANG Shao-wu1, SONG Qing-wei2, SHI Chang2
		DOI: 10.12117/jccmi.2019.06.024

		2019 Vol. 30 (6): 455-456 [Abstract] ( 282 ) HTML (1 KB) PDF (0 KB) ( 44 )

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