This article reports the imaging data of a child with caudal degeneration syndrome. The clinical manifestation of the child is bilateral lower limb malformation and urinary and fecal incontinence. The imaging manifestation is loss of the lumbosacral and caudal vertebrae, bilateral iliac bone displacement and formation of false joints, bilateral hip abduction, and bilateral knee flexion; Loss of muscle density in the lower abdomen, posterior pelvic cavity, and bilateral buttocks; Multiple patchy density reduction shadows in both cerebral hemispheres; Horseshoe kidney.
{"title":"Caudal regression syndrome: a case report","authors":"Yufen Zhang, Xianchun Zeng, Zong-Hui Liu","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.02.015","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.02.015","url":null,"abstract":"本文报道1例尾端退化综合征患儿的影像学资料。患儿临床表现为双下肢畸形并大小便失禁，影像表现为腰骶尾椎缺失，双侧髂骨内移并形成假关节，双髋外展、双膝屈曲；下腹部、盆腔后部及双侧臀部肌肉缺失，呈脂肪密度；双侧大脑半球多发斑片状密度减低影；马蹄肾。","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47009202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Radiological Diagnosis of New Coronavirus Infected Pneumonitis: Expert Recommendation from the Chinese Society of Radiology (First edition)","authors":"中华医学会放射学分会","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.0001","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.0001","url":null,"abstract":"2019年12月以来，湖北省武汉市陆续发现不明原因肺炎患者，经世界卫生组织确认其病原并命名为2019-新型冠状病毒。放射学诊断是新型冠状病毒感染的肺炎诊疗过程中的重要一环。为进一步规范全国新型冠状肺炎的放射学诊断工作，中华医学会放射学分会牵头组织全国委员、心胸学组部分委员和国内相关医院讨论编写本《推荐意见》，阐述总结了新型冠状病毒感染的肺炎的放射学检查流程、放射学表现和分期、放射学转归，放射学在疑似病例、临床诊断病例、确诊病例复诊和基于放射学表现的出院依据。同时阐述了儿童新型冠状病毒感染的临床特点和放射学表现，旨在指导各级医疗机构的放射诊断工作。","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41734521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-10DOI: 10.3760/CMA.J.ISSN.1005-1201.2020.01.011
Zhen Li, Peng-chao Zhan, P. Zhou, Xin Li, Kun Ji, Yang Shi, S. Ye, B. Xie
Objective To explore the therapeutic value of interventional methods for hemorrhage caused by mandibular arteriovenous malformations. Methods The clinical data of 7 patients (3 males and 4 females) with mandibular arteriovenous malformations treated by interventional therapy from January 2012 to January 2018 in the First Affiliated Hospital, Zhengzhou University were retrospectively analyzed. Of all patients, 4 patients suffered from sudden massive hemorrhage and 3 patients suffered from spontaneous repeated bleeding. The age ranged from 8.0 to 13.0 (10.6±1.7) years. Of the 7 patients, 3 underwent interventional embolization via arteries and veins, and 4 underwent embolization only via arteries. The embolic materials were polyvinyl alcohol granules and coils. The follow-up period was 9—18 months and the curative effect was observed. Results Among the 7 patients, 4 cases of acute massive hemorrhage were effectively controlled after interventional operation, 3 cases of chronic bleeding disappeared after interventional operation. No recurrence of bleeding occurred during the follow-up period, only 1 patient presented with oral infection and gingival swelling and hyperplasia. The symptoms were effectively controlled after anti-infection and debridement. No severe complications occurred in all patients. Conclusion Interventional therapy for ateriovenous malformation with hemorrhage is effective, safe and feasible, which is worthy of clinical application. Key words: Arteriovenous malformation; Mandible; Radiology, interventional; Embolization, therapeutic
{"title":"Effect analysis of interventional therapy for hemorrhage of mandibular arteriovenous malformations","authors":"Zhen Li, Peng-chao Zhan, P. Zhou, Xin Li, Kun Ji, Yang Shi, S. Ye, B. Xie","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.011","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.011","url":null,"abstract":"Objective \u0000To explore the therapeutic value of interventional methods for hemorrhage caused by mandibular arteriovenous malformations. \u0000 \u0000 \u0000Methods \u0000The clinical data of 7 patients (3 males and 4 females) with mandibular arteriovenous malformations treated by interventional therapy from January 2012 to January 2018 in the First Affiliated Hospital, Zhengzhou University were retrospectively analyzed. Of all patients, 4 patients suffered from sudden massive hemorrhage and 3 patients suffered from spontaneous repeated bleeding. The age ranged from 8.0 to 13.0 (10.6±1.7) years. Of the 7 patients, 3 underwent interventional embolization via arteries and veins, and 4 underwent embolization only via arteries. The embolic materials were polyvinyl alcohol granules and coils. The follow-up period was 9—18 months and the curative effect was observed. \u0000 \u0000 \u0000Results \u0000Among the 7 patients, 4 cases of acute massive hemorrhage were effectively controlled after interventional operation, 3 cases of chronic bleeding disappeared after interventional operation. No recurrence of bleeding occurred during the follow-up period, only 1 patient presented with oral infection and gingival swelling and hyperplasia. The symptoms were effectively controlled after anti-infection and debridement. No severe complications occurred in all patients. \u0000 \u0000 \u0000Conclusion \u0000Interventional therapy for ateriovenous malformation with hemorrhage is effective, safe and feasible, which is worthy of clinical application. \u0000 \u0000 \u0000Key words: \u0000Arteriovenous malformation; Mandible; Radiology, interventional; Embolization, therapeutic","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45489946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-10DOI: 10.3760/CMA.J.ISSN.1005-1201.2020.01.014
Lili Zhang, Y. Niu, J. Xian, Yongxian Zhang
Objective To explore the effect of pre- and post-adaptive statistical iterative reconstruction-Veo (ASiR-V) on image quality and radiation dose in paranasal sinus CT, and to find the best combinations. Methods One head specimen was scanned with the routine spiral CT scanning parameters [noise index (NI)=8] and different levels of pre-ASiR-V (0—100%, with an interval of 10%). The images were reconstructed with different post-ASiR-V (0—100%, with an interval of 10%) for the bone algorithm and standard algorithm. All of 242 thin-layer images of paranasal sinuses were obtained. The region of interest (ROI) was selected to measure the CT value to calculate the contrast to noise ratio (CNR) and figure of merit (FOM). The volume CT dose index (CTDIvol) and Smart mA were recorded. The linear regression was conducted to analyze the relationship between CTDIvol, SmartmA, CNR and FOM. And with the same pose-ASiR-V level, the CNR of images which reconstructed by bone and soft algorithms were compared with pair-wise t test. The image quality was subjectively evaluated by three independent experienced radiologists using a 4-point scale (4 was the best). Results As the pre-ASiR-V levels (0—100%) increased, Smart mA and CTDIvol were reduced with a linear negative correlation (r=-0.981, -0.976, both P<0.001). The Smart mA decreased by 72.05% and CTDIvol by 71.22%. Keeping the same pre-ASiR-V level,the CNR increased with the increase of post-ASiR-V level (for the bone algorithm images:R2=0.976, 0.992, 0.982, 0.982, 0.975, 0.975, 0.979, 0.996, 0.952, 0.978, 0.965;for the standard algorithm images: R2=0.944, 0.990, 0.988, 0.993, 0.996, 0.987, 0.984, 0.996, 0.996, 0.990, 0.965).Under the same level of post-ASiR-V, the CNR and FOM fluctuated with the pre-ASiR-V level (for the bone algorithm images:R2=0.335, 0.341, 0.344, 0.364, 0.385, 0.405, 0.418, 0.429, 0.455, 0.474, 0.516; for the standard algorithm images: R2=0.223, 0.278, 0.327, 0.285, 0.309, 0.329, 0.325, 0.346, 0.360, 0.390, 0.380). All subjective image quality could meet the diagnostic requirements (the score≥3). Conclusion At NI=8, for the bone algorithm, the best combination is 80% pre-ASiR-V and 100% post-ASiR-V; for the standard algorithm, the best iteration combination is 100% and 100%. The appropriate choice of pre- and post-ASiR-V levels in paranasal sinus CT scan can effectively reduce the radiation dose under the premise of maintaining the image quality that meets the diagnostic needs. Key words: Paranasal sinuses; Tomography, X-ray computed; Radiation dosage; Image processing, computer-assisted; Image quality
{"title":"Experimental study on the effect of adaptive statistical iterative reconstruction algorithms on image quality and radiation dose in paranasal sinus CT","authors":"Lili Zhang, Y. Niu, J. Xian, Yongxian Zhang","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.014","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.014","url":null,"abstract":"Objective \u0000To explore the effect of pre- and post-adaptive statistical iterative reconstruction-Veo (ASiR-V) on image quality and radiation dose in paranasal sinus CT, and to find the best combinations. \u0000 \u0000 \u0000Methods \u0000One head specimen was scanned with the routine spiral CT scanning parameters [noise index (NI)=8] and different levels of pre-ASiR-V (0—100%, with an interval of 10%). The images were reconstructed with different post-ASiR-V (0—100%, with an interval of 10%) for the bone algorithm and standard algorithm. All of 242 thin-layer images of paranasal sinuses were obtained. The region of interest (ROI) was selected to measure the CT value to calculate the contrast to noise ratio (CNR) and figure of merit (FOM). The volume CT dose index (CTDIvol) and Smart mA were recorded. The linear regression was conducted to analyze the relationship between CTDIvol, SmartmA, CNR and FOM. And with the same pose-ASiR-V level, the CNR of images which reconstructed by bone and soft algorithms were compared with pair-wise t test. The image quality was subjectively evaluated by three independent experienced radiologists using a 4-point scale (4 was the best). \u0000 \u0000 \u0000Results \u0000As the pre-ASiR-V levels (0—100%) increased, Smart mA and CTDIvol were reduced with a linear negative correlation (r=-0.981, -0.976, both P<0.001). The Smart mA decreased by 72.05% and CTDIvol by 71.22%. Keeping the same pre-ASiR-V level,the CNR increased with the increase of post-ASiR-V level (for the bone algorithm images:R2=0.976, 0.992, 0.982, 0.982, 0.975, 0.975, 0.979, 0.996, 0.952, 0.978, 0.965;for the standard algorithm images: R2=0.944, 0.990, 0.988, 0.993, 0.996, 0.987, 0.984, 0.996, 0.996, 0.990, 0.965).Under the same level of post-ASiR-V, the CNR and FOM fluctuated with the pre-ASiR-V level (for the bone algorithm images:R2=0.335, 0.341, 0.344, 0.364, 0.385, 0.405, 0.418, 0.429, 0.455, 0.474, 0.516; for the standard algorithm images: R2=0.223, 0.278, 0.327, 0.285, 0.309, 0.329, 0.325, 0.346, 0.360, 0.390, 0.380). All subjective image quality could meet the diagnostic requirements (the score≥3). \u0000 \u0000 \u0000Conclusion \u0000At NI=8, for the bone algorithm, the best combination is 80% pre-ASiR-V and 100% post-ASiR-V; for the standard algorithm, the best iteration combination is 100% and 100%. The appropriate choice of pre- and post-ASiR-V levels in paranasal sinus CT scan can effectively reduce the radiation dose under the premise of maintaining the image quality that meets the diagnostic needs. \u0000 \u0000 \u0000Key words: \u0000Paranasal sinuses; Tomography, X-ray computed; Radiation dosage; Image processing, computer-assisted; Image quality","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49185091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-10DOI: 10.3760/CMA.J.ISSN.1005-1201.2020.01.008
Hui-ci Zhu, Xiao-Ting Li, Shu Li, Xiaoyan Zhang, Zhen Guan, Yingshi Sun
Objective To compare the characteristics of MRI signals in different therapeutic effect of desmoid-type fibromatosis (DF). Methods One hundred and twenty-four DF patients with pathologically proven postoperative recurrent lesions from Peking University Cancer Hospital from 2008 to 2015 were enrolled in the study. All patients had baseline MRI scans, followed by once MRI scan at least every six months, and the follow-up period was three years. All patients had MRI images at the end of the third year. The therapeutic effect was evaluated by response evaluation criteria in solid tumors (RECIST) criteria, and the patients were divided into three groups: progressive disease (PD), stable disease (SD) and partial response (PR). Differences in features in the PD, SD, and PR groups were compared using one-way analysis of variance, Kruskal-Wallis, or Chi-square test. Multiple comparisons were performed using Bonferroni to correct P values. The spearman correlation coefficient was used to test the correlation between signal score and tumor maximum diameter. Results Among the 124 patients, 17 experienced PD, 37 exhibited SD and 70 exhibited PR. There were no significant differences in age, gender distribution and the location of lesion among three groups (P>0.05). The difference of treatment strategies was statistically significant (P 0.05). At the last follow-up MRI scan, the T2 signal scores, the changes of T2 signal, the scores of enhancement and the changes of enhancement of the PD, SD, and PR groups were significantly different among three groups (P<0.05). At the last follow-up MRI scan, the tumor maximum diameter was positively correlated with the score of T2 signal (r=0.434, P<0.01), and the tumor maximum diameter was positively correlated with the score of enhancement (r=0.743, P<0.01). Conclusion MRI has great value in evaluating the therapeutic effect of DF. Key words: Magnetic resonance imaging; Desmoid-type fibromatosis; Therapeutic effect evaluation
{"title":"The value of MRI in evaluating the therapeutic effect of desmoid-type fibromatosis","authors":"Hui-ci Zhu, Xiao-Ting Li, Shu Li, Xiaoyan Zhang, Zhen Guan, Yingshi Sun","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.008","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.008","url":null,"abstract":"Objective \u0000To compare the characteristics of MRI signals in different therapeutic effect of desmoid-type fibromatosis (DF). \u0000 \u0000 \u0000Methods \u0000One hundred and twenty-four DF patients with pathologically proven postoperative recurrent lesions from Peking University Cancer Hospital from 2008 to 2015 were enrolled in the study. All patients had baseline MRI scans, followed by once MRI scan at least every six months, and the follow-up period was three years. All patients had MRI images at the end of the third year. The therapeutic effect was evaluated by response evaluation criteria in solid tumors (RECIST) criteria, and the patients were divided into three groups: progressive disease (PD), stable disease (SD) and partial response (PR). Differences in features in the PD, SD, and PR groups were compared using one-way analysis of variance, Kruskal-Wallis, or Chi-square test. Multiple comparisons were performed using Bonferroni to correct P values. The spearman correlation coefficient was used to test the correlation between signal score and tumor maximum diameter. \u0000 \u0000 \u0000Results \u0000Among the 124 patients, 17 experienced PD, 37 exhibited SD and 70 exhibited PR. There were no significant differences in age, gender distribution and the location of lesion among three groups (P>0.05). The difference of treatment strategies was statistically significant (P 0.05). At the last follow-up MRI scan, the T2 signal scores, the changes of T2 signal, the scores of enhancement and the changes of enhancement of the PD, SD, and PR groups were significantly different among three groups (P<0.05). At the last follow-up MRI scan, the tumor maximum diameter was positively correlated with the score of T2 signal (r=0.434, P<0.01), and the tumor maximum diameter was positively correlated with the score of enhancement (r=0.743, P<0.01). \u0000 \u0000 \u0000Conclusion \u0000MRI has great value in evaluating the therapeutic effect of DF. \u0000 \u0000 \u0000Key words: \u0000Magnetic resonance imaging; Desmoid-type fibromatosis; Therapeutic effect evaluation","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43022189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-10DOI: 10.3760/CMA.J.ISSN.1005-1201.2020.01.005
Di Li, Xiao-feng Tao, Ningning Zhang, Zuofu Zhou, Hong Shen, Yonghong Zhang, Bao-Ping Xu, Yun Peng
Objective To explore the imaging manifestations of thoracic CT in patients with Gaucher disease (GD) in order to improve the diagnostic ability. Methods Forty-three patients with GD were collected from May 2003 to October 2018 in Beijing Children′s Hospital, including 25 males and 18 females, aged from 10 to 34 years, with an average age of (21±6) years. All the patients underwent routine chest CT examinations, and analysis and description of pulmonary interstitial and parenchyma imaging manifestations were performed. Results Among the 43 GD patients, 20 patients presented with abnormal chest CT findings: 10 showed diffuse interlobular septa thickening, mainly distributed in the lower lobes of both lungs; 5 showed ground glass opacities in a single or multiple lobes of the lung. There were 2 cases with small nodules, which showed round-like nodules of different sizes. One case had pulmonary fibrosis, especially in the left upper lobe. Other manifestations included bullae in 3 cases,localized pleural thickening in 2 cases, pneumothorax in 1 case; pulmonary hypertension in 1 case and thymus enlargement in 12 cases. Most of the GD patients had pulmonary lesions between 10 and 14 years old. The signs of interlobular septa thickening and thymus enlargement were common, with 5 cases in each age group. Conclusions GD involves the lungs in half of the patients. The manifestations of the lungs are diverse, and most of them are diffuse interstitial lesions. The main signs are interlobular septal thickening and ground glass opacity, which are consistent with the pathology of Gaucher cell infiltration.But the signs are not specific, the diagnosis should be made in combination with the clinical information, and attention should be paid to the differentiation of lung infiltration caused by other diseases. Key words: Gaucher disease; Lung; Tomography, X-ray computed
{"title":"Analysis of CT features of chest in Gaucher disease","authors":"Di Li, Xiao-feng Tao, Ningning Zhang, Zuofu Zhou, Hong Shen, Yonghong Zhang, Bao-Ping Xu, Yun Peng","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.005","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.005","url":null,"abstract":"Objective \u0000To explore the imaging manifestations of thoracic CT in patients with Gaucher disease (GD) in order to improve the diagnostic ability. \u0000 \u0000 \u0000Methods \u0000Forty-three patients with GD were collected from May 2003 to October 2018 in Beijing Children′s Hospital, including 25 males and 18 females, aged from 10 to 34 years, with an average age of (21±6) years. All the patients underwent routine chest CT examinations, and analysis and description of pulmonary interstitial and parenchyma imaging manifestations were performed. \u0000 \u0000 \u0000Results \u0000Among the 43 GD patients, 20 patients presented with abnormal chest CT findings: 10 showed diffuse interlobular septa thickening, mainly distributed in the lower lobes of both lungs; 5 showed ground glass opacities in a single or multiple lobes of the lung. There were 2 cases with small nodules, which showed round-like nodules of different sizes. One case had pulmonary fibrosis, especially in the left upper lobe. Other manifestations included bullae in 3 cases,localized pleural thickening in 2 cases, pneumothorax in 1 case; pulmonary hypertension in 1 case and thymus enlargement in 12 cases. Most of the GD patients had pulmonary lesions between 10 and 14 years old. The signs of interlobular septa thickening and thymus enlargement were common, with 5 cases in each age group. \u0000 \u0000 \u0000Conclusions \u0000GD involves the lungs in half of the patients. The manifestations of the lungs are diverse, and most of them are diffuse interstitial lesions. The main signs are interlobular septal thickening and ground glass opacity, which are consistent with the pathology of Gaucher cell infiltration.But the signs are not specific, the diagnosis should be made in combination with the clinical information, and attention should be paid to the differentiation of lung infiltration caused by other diseases. \u0000 \u0000 \u0000Key words: \u0000Gaucher disease; Lung; Tomography, X-ray computed","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42500926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hibernoma under pectoralis minor muscle in left chest wall: a case report","authors":"H. Hao, Z. Cao, Xuefang Jiang","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.016","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.016","url":null,"abstract":"本文报道左侧胸壁胸小肌下冬眠瘤一例。患者，男，61岁。CT表现为左侧胸壁胸小肌下椭圆形低密度为主的软组织肿块，与皮下脂肪接近但不完全相同，CT值约-50HU，内部可见线样、曲线样分隔。MRI平扫表现为轴面T2WI见左侧胸壁胸小肌下水滴状高信号，略低于皮下脂肪信号，其内可见网状线状低信号，轴面T2WI脂肪抑制见该病灶信号明显减低，其内可见网状线状高信号，冠状面T2WI见该病灶信号呈半球状，轴面T1WI脂肪抑制可见该病灶信号低于皮下脂肪信号，其内可见网状线状低信号，DWI未见信号增高。病理诊断：（左侧胸壁肿物）冬眠瘤。","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47367739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Objective To explore the relationship between cerebral hemorrhagic transformation (HT) and angiographic early venous filling (EVF) following mechanical thrombectomy for acute ischemic stroke. Methods A retrospective imaging analysis was performed in the consecutive patients treated from January 2015 to November 2018 for acute anterior circulation large vessel occlusion using mechanical thrombectomy on the Affiliated Hospital of Yangzhou University. The demography, vascular risk factors and other clinical data of the patients were also collected. According to the experimental study of European Cooperative Acute Stroke Study Ⅱ (ECASS Ⅱ), the modified classification of HT after mechanical thrombectomy was divided into HT negative, HT-Ⅰ type and HT-Ⅱ type. The differences in EVF, clinical and demographic characteristics were compared. Multivariate logistic regression analysis was used to identify the independent risk factors for HT and clinical outcome. Diagnostic test characteristics of EVF for HT-Ⅱ type were determined using a receiver operating characteristic curve (ROC) analysis. Results A total of 98 patients with acute ischemic stroke who received mechanical thrombectomy were enrolled, including HT negative in 48 cases (49.0%, 48/98), HT-Ⅰ in 40 cases (40.8%, 40/98) and HT-Ⅱ in 10 cases (10.2%, 10/98). Significant differences were noted in age, and incidence of atrial fibrillation, EVF and poor outcomes among three groups (P<0.05). Multivariate logistic regression analysis showed that EVF [odds ratio (OR) 5.960, 95%CI 1.750-8.960, P=0.001] and atrial fibrillation (OR 3.485, 95%CI 1.962-18.986, P=0.028) were risk factors for the occurrence of HT-Ⅱ after mechanical thrombectomy. No risk factor for HT-Ⅰ was noted. Baseline National Institute of Health Stroke Scale (NIHSS) score (OR 1.162, 95%CI 1.021-1.345, P=0.038), EVF (OR 5.358, 95%CI 1.665-13.653, P=0.006) and HT-Ⅱ (OR 1.326, 95%CI 1.226-2.038, P=0.032) were independent risk factors for poor outcomes. And the sensitivity and specificity of EVF in prediction for HT-Ⅱ were 80.0% and 86.4% respectively, with the area under the ROC curve of 0.832. Conclusion Presence of EVF after mechanical thrombectomy may be the predictor for HT-Ⅱ, which indicates the poor clinical outcomes for acute ischemic stroke patients. Key words: Brain infarction; Radiology, interventional; Postoperative complications; Risk factors; Thrombectomy
{"title":"Relationship between hemorrhagic transformation and angiographic early venous filling following mechanical thrombectomy for acute ischemic stroke","authors":"Zhen-sheng Liu, Yong Sun, Xiongwei Kuang, Longjiang Zhou, Tieyu Tang, Zhang Wen","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.009","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.009","url":null,"abstract":"Objective \u0000To explore the relationship between cerebral hemorrhagic transformation (HT) and angiographic early venous filling (EVF) following mechanical thrombectomy for acute ischemic stroke. \u0000 \u0000 \u0000Methods \u0000A retrospective imaging analysis was performed in the consecutive patients treated from January 2015 to November 2018 for acute anterior circulation large vessel occlusion using mechanical thrombectomy on the Affiliated Hospital of Yangzhou University. The demography, vascular risk factors and other clinical data of the patients were also collected. According to the experimental study of European Cooperative Acute Stroke Study Ⅱ (ECASS Ⅱ), the modified classification of HT after mechanical thrombectomy was divided into HT negative, HT-Ⅰ type and HT-Ⅱ type. The differences in EVF, clinical and demographic characteristics were compared. Multivariate logistic regression analysis was used to identify the independent risk factors for HT and clinical outcome. Diagnostic test characteristics of EVF for HT-Ⅱ type were determined using a receiver operating characteristic curve (ROC) analysis. \u0000 \u0000 \u0000Results \u0000A total of 98 patients with acute ischemic stroke who received mechanical thrombectomy were enrolled, including HT negative in 48 cases (49.0%, 48/98), HT-Ⅰ in 40 cases (40.8%, 40/98) and HT-Ⅱ in 10 cases (10.2%, 10/98). Significant differences were noted in age, and incidence of atrial fibrillation, EVF and poor outcomes among three groups (P<0.05). Multivariate logistic regression analysis showed that EVF [odds ratio (OR) 5.960, 95%CI 1.750-8.960, P=0.001] and atrial fibrillation (OR 3.485, 95%CI 1.962-18.986, P=0.028) were risk factors for the occurrence of HT-Ⅱ after mechanical thrombectomy. No risk factor for HT-Ⅰ was noted. Baseline National Institute of Health Stroke Scale (NIHSS) score (OR 1.162, 95%CI 1.021-1.345, P=0.038), EVF (OR 5.358, 95%CI 1.665-13.653, P=0.006) and HT-Ⅱ (OR 1.326, 95%CI 1.226-2.038, P=0.032) were independent risk factors for poor outcomes. And the sensitivity and specificity of EVF in prediction for HT-Ⅱ were 80.0% and 86.4% respectively, with the area under the ROC curve of 0.832. \u0000 \u0000 \u0000Conclusion \u0000Presence of EVF after mechanical thrombectomy may be the predictor for HT-Ⅱ, which indicates the poor clinical outcomes for acute ischemic stroke patients. \u0000 \u0000 \u0000Key words: \u0000Brain infarction; Radiology, interventional; Postoperative complications; Risk factors; Thrombectomy","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47154882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-10DOI: 10.3760/CMA.J.ISSN.1005-1201.2020.01.007
Q. Jiang, Jiawei Wang, Jin Xu, Leiming Xu
Objective To explore the relationship between split-fat sign and entering and exiting nerve sign on MRI in nerve sheath tumors (NSTs) of extremities. Methods The MRI data of 141 patients with benign soft tissue NSTs of extremities confirmed by operation and pathology from January 2014 to July 2018 in the Second Hospital of Zhejiang University School of Medicine were retrospectively analyzed. The patients were divided into intramuscular and intermuscular groups according to the location of the tumors. The split-fat sign and entering and exiting nerve sign in the two groups were compared using χ2 test. Results There were 152 NSTs in 141 patients, including 41 intramuscular NSTs and 111 intermuscular NSTs. There were 48 split-fat sign and 14 entering and exiting nerve sign in intramuscular NSTs, while 9 split-fat sign and 190 entering and exiting nerve sign in intermuscular NSTs. Statistical analysis showed that there were statistically significant differences in split-fat sign (χ2=55.545, P<0.001) and entering and exiting nerve sign (χ2=26.969, P<0.001) between the two groups. Conclusion The split-fat sign mostly appeared in intramuscular NSTs, and the entering and exiting nerve sign mostly appeared in intermuscular NSTs. Key words: Neurilemmoma; Magnetic resonance imaging; Split-fat sign; Entering and exiting nerve sign
{"title":"Nerve sheath tumor of extremities: analysis of split-fat sign and entering and exiting nerve sign","authors":"Q. Jiang, Jiawei Wang, Jin Xu, Leiming Xu","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.007","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.007","url":null,"abstract":"Objective \u0000To explore the relationship between split-fat sign and entering and exiting nerve sign on MRI in nerve sheath tumors (NSTs) of extremities. \u0000 \u0000 \u0000Methods \u0000The MRI data of 141 patients with benign soft tissue NSTs of extremities confirmed by operation and pathology from January 2014 to July 2018 in the Second Hospital of Zhejiang University School of Medicine were retrospectively analyzed. The patients were divided into intramuscular and intermuscular groups according to the location of the tumors. The split-fat sign and entering and exiting nerve sign in the two groups were compared using χ2 test. \u0000 \u0000 \u0000Results \u0000There were 152 NSTs in 141 patients, including 41 intramuscular NSTs and 111 intermuscular NSTs. There were 48 split-fat sign and 14 entering and exiting nerve sign in intramuscular NSTs, while 9 split-fat sign and 190 entering and exiting nerve sign in intermuscular NSTs. Statistical analysis showed that there were statistically significant differences in split-fat sign (χ2=55.545, P<0.001) and entering and exiting nerve sign (χ2=26.969, P<0.001) between the two groups. \u0000 \u0000 \u0000Conclusion \u0000The split-fat sign mostly appeared in intramuscular NSTs, and the entering and exiting nerve sign mostly appeared in intermuscular NSTs. \u0000 \u0000 \u0000Key words: \u0000Neurilemmoma; Magnetic resonance imaging; Split-fat sign; Entering and exiting nerve sign","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42959931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Focal abdominal fat necrosis is a common clinical abdominal fat lesion, often diagnosed with abdominal pain as the first symptom. Most cases of focal fat necrosis in the abdominal cavity are self-limiting diseases, and the clinical treatment method is different from other acute abdominal diseases. It requires timely diagnosis and differentiation based on imaging methods to avoid unnecessary surgery and excessive treatment. The author mainly explores the typical imaging signs and main differential diagnosis of focal fat necrosis in the abdominal cavity based on clinical cases.
{"title":"Imaging features of focal fat necrosis in the abdominal cavity and its differential diagnosis","authors":"Di Chang","doi":"10.3760/CMA.J.ISSN.1005-1201.2020.01.019","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1005-1201.2020.01.019","url":null,"abstract":"腹腔局灶性脂肪坏死是一种临床常见的腹部脂肪病变，常以腹痛为首发症状就诊。大部分腹腔局灶性脂肪坏死是一种自限性疾病，临床处理方法与其他急腹症不同，需要依靠影像学方法及时诊断并区分鉴别，避免不必要的手术和过度治疗。笔者主要结合临床病例探讨腹腔局灶性脂肪坏死的典型影像学征象及其主要鉴别诊断。","PeriodicalId":39377,"journal":{"name":"Zhonghua fang she xue za zhi Chinese journal of radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41988101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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