Pub Date : 2011-08-01DOI: 10.1016/j.ejrex.2011.05.003
Vincent Timpone , Daren Danielson , Alyn Woods , Beth Clark
Pulmonary sclerosing hemangiomas are generally regarded as benign lung lesions arising from type II pneumocytes and bronchial epithelium. In some cases malignant features may be present. There are several case reports describing the radiographic, computed tomography (CT), and magnetic resonance imaging (MRI) characteristics of pulmonary sclerosing hemangiomas. Given the potential for low-grade malignancy 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) imaging may be useful in the diagnostic work up and therapeutic planning in these patients, however the FDG–PET imaging features of pulmonary sclerosing hemangiomas are not well defined. We report a case of histopathologically diagnosed sclerosing hemangioma of the lung which demonstrated intermediate uptake of FDG on the preoperative PET/CT evaluation.
{"title":"FDG–PET imaging findings of a pulmonary sclerosing hemangioma","authors":"Vincent Timpone , Daren Danielson , Alyn Woods , Beth Clark","doi":"10.1016/j.ejrex.2011.05.003","DOIUrl":"10.1016/j.ejrex.2011.05.003","url":null,"abstract":"<div><p>Pulmonary sclerosing hemangiomas<span><span><span> are generally regarded as benign lung lesions arising from type II pneumocytes and </span>bronchial epithelium<span>. In some cases malignant features may be present. There are several case reports describing the radiographic, computed tomography (CT), and magnetic resonance imaging (MRI) characteristics of pulmonary sclerosing hemangiomas. Given the potential for low-grade </span></span>malignancy<span> 18F-fluorodeoxyglucose (FDG) positron emission tomography<span> (PET) imaging may be useful in the diagnostic work up and therapeutic planning in these patients, however the FDG–PET imaging features of pulmonary sclerosing hemangiomas are not well defined. We report a case of histopathologically diagnosed sclerosing hemangioma<span> of the lung which demonstrated intermediate uptake of FDG on the preoperative PET/CT evaluation.</span></span></span></span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e65-e67"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.05.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73249645","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.06.002
Paolo Galluzzi , Michele Sacchini , Gabriella Bartalini , Lucia Monti , Alfonso Cerase , Eleonora Lamantea , Federica Invernizzi , Massimo Zeviani , Paolo Balestri , Carlo Venturi
Leukoencephalopathy with brain stem and spinal cord involvement and high lactate (LBSL) is a recently identified leukoencephalopathy, first described by Van der Knaap in 2003. To date 24 cases have been described. Distinctive features were as follows. First, brain MRI showed white matter abnormalities and involvement of brain stem structures. Second, sparing of the u-fibers was an invariant, distinctive feature of the syndrome. Third, whenever evaluated, spinal cord was always involved. Fourth, brain [1H]-MR spectroscopy failed to show a lactate peak in all cases. In our little child, the diagnosis was confirmed by genetic analysis but unlike previous report both the u-fibers and globus pallidus were involved; spectroscopic data were more consistent with hypomyelination than demyelination. Our findings add to the phenotype variability of this novel disease.
累及脑干和脊髓并高乳酸血症(LBSL)的脑白质病是最近发现的一种脑白质病,由Van der Knaap于2003年首次描述。迄今已报告24例。其特点如下。首先,脑MRI显示白质异常和脑干结构受累。其次,u型纤维的保留是该综合征的一个不变的、显著的特征。第三,无论何时进行评估,脊髓总是受到影响。第四,所有病例的脑[1H]-MR谱均未显示乳酸峰。在我们的小孩中,基因分析证实了诊断,但与先前的报道不同的是,u-纤维和苍白球都受到影响;光谱数据更符合低髓鞘而非脱髓鞘。我们的发现增加了这种新型疾病的表型变异性。
{"title":"LBSL (leukoencephalopathy with brain stem and spinal cord involvement and high lactate) without sparing of the u-fibers and globi pallidi: A case report","authors":"Paolo Galluzzi , Michele Sacchini , Gabriella Bartalini , Lucia Monti , Alfonso Cerase , Eleonora Lamantea , Federica Invernizzi , Massimo Zeviani , Paolo Balestri , Carlo Venturi","doi":"10.1016/j.ejrex.2011.06.002","DOIUrl":"10.1016/j.ejrex.2011.06.002","url":null,"abstract":"<div><p><span>Leukoencephalopathy<span> with brain stem and spinal cord involvement and high lactate (LBSL) is a recently identified leukoencephalopathy, first described by Van der Knaap in 2003. To date 24 cases have been described. Distinctive features were as follows. First, brain MRI showed white matter abnormalities and involvement of brain stem structures. Second, sparing of the u-fibers was an invariant, distinctive feature of the syndrome. Third, whenever evaluated, spinal cord was always involved. Fourth, brain [</span></span><sup>1</sup><span>H]-MR spectroscopy failed to show a lactate peak in all cases. In our little child, the diagnosis was confirmed by genetic analysis but unlike previous report both the u-fibers and globus pallidus<span> were involved; spectroscopic data were more consistent with hypomyelination than demyelination. Our findings add to the phenotype variability of this novel disease.</span></span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e73-e76"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.06.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75575875","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.06.001
Rahul D. Renapurkar , Ruvin S. Gabriel , Allan Klein , Paul Schoenhagen , Janine Arruda
We report an unusual association between Ebstein anomaly of the tricuspid valve and a stenotic double orifice mitral valve diagnosed later in life.
我们报告了三尖瓣Ebstein异常与后来诊断的双孔二尖瓣狭窄之间的不寻常关联。
{"title":"Ebstein anomaly and double orifice mitral valve–An unusual association","authors":"Rahul D. Renapurkar , Ruvin S. Gabriel , Allan Klein , Paul Schoenhagen , Janine Arruda","doi":"10.1016/j.ejrex.2011.06.001","DOIUrl":"10.1016/j.ejrex.2011.06.001","url":null,"abstract":"<div><p>We report an unusual association between Ebstein anomaly of the tricuspid valve and a stenotic double orifice mitral valve diagnosed later in life.</p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e69-e71"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.06.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80656527","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.05.002
Athina C. Tsili , Maria I. Argyropoulou , Dimitrios Giannakis , Ekaterini Zioga , Sotirios Koukos , Nikolaos Sofikitis , Konstantinos Tsampoulas
Isolated granulomatous orchitis is a rare chronic testicular inflammation, which should be differentiated from testicular malignancies on scrotal imaging. We present a case of a 33-year-old man, with a diffuse pattern of granulomatous orchitis, confirmed by means of testicular biopsy. MR imaging of the scrotum revealed the presence of two small-sized intratesticular lesions, hypointense on T2-weighted images, not enhancing after gadolinium administration suggesting the diagnosis of benignity.
{"title":"Isolated granulomatous orchitis: MR imaging findings","authors":"Athina C. Tsili , Maria I. Argyropoulou , Dimitrios Giannakis , Ekaterini Zioga , Sotirios Koukos , Nikolaos Sofikitis , Konstantinos Tsampoulas","doi":"10.1016/j.ejrex.2011.05.002","DOIUrl":"10.1016/j.ejrex.2011.05.002","url":null,"abstract":"<div><p><span>Isolated granulomatous </span>orchitis<span><span> is a rare chronic testicular inflammation, which should be differentiated from testicular malignancies<span> on scrotal imaging. We present a case of a 33-year-old man, with a diffuse pattern of granulomatous orchitis, confirmed by means of testicular biopsy. MR imaging of the </span></span>scrotum<span> revealed the presence of two small-sized intratesticular lesions, hypointense on T2-weighted images, not enhancing after gadolinium administration suggesting the diagnosis of benignity.</span></span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e81-e83"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.05.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88174902","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}
Association of venous thromboembolic events (TEs) with malignancy is well known. Ewing's sarcoma usually presents as swelling at the primary site, however presenting as unilateral lower limb edema due to tumoral thrombosis of right iliac vein and IVC is a rare event. A 30-year-old male patient with extensive right lower limb swelling was admitted and imaging studies (plain film, ultrasonography, Doppler, computed tomography) revealed a mass arising from right iliac bone, adjoining sacrum and tumoral thrombosis of right iliac veins extending into inferior vena cava. Histopathological diagnosis was Ewing's sarcoma. Patient was treated successfully with chemotherapy and surgical embolectomy. So a young patient presenting with deep vein thrombosis should be investigated not only to establish any thrombophilic pre-disposition, but also let the clinician to suspect for any local malignancy. Treatment depends upon the proximal extent of tumoral thrombus. With advances in imaging and chemotherapeutic regimens early diagnosis is possible and appropriate treatment planning improves the prognosis. To our knowledge skeletal Ewing's sarcoma with bland thrombosis is a known entity however no such case with direct invasion of tumor into veins leading to tumoral venous thrombosis has been reported in medical literature.
{"title":"Tumoral thrombosis of inferior vena cava and iliac veins resulting in unilateral lower limb edema in a young adult: A rare presentation of skeletal Ewing's sarcoma","authors":"Praveen Kumar , Bhoopendra P. Singh , Shailendra Mohan Shukla , Lubna Khan , Ojaswi Pathak","doi":"10.1016/j.ejrex.2011.04.004","DOIUrl":"10.1016/j.ejrex.2011.04.004","url":null,"abstract":"<div><p><span>Association of venous thromboembolic events (TEs) with </span>malignancy<span><span><span> is well known. Ewing's sarcoma usually presents as swelling at the primary site, however presenting as unilateral lower </span>limb edema due to tumoral thrombosis of right </span>iliac vein<span><span> and IVC is a rare event. A 30-year-old male patient with extensive right lower limb swelling was admitted and imaging studies (plain film, ultrasonography, Doppler, computed tomography) revealed a mass arising from right </span>iliac bone<span><span><span>, adjoining sacrum<span><span> and tumoral thrombosis of right iliac veins extending into inferior vena cava. Histopathological diagnosis was Ewing's sarcoma. Patient was treated successfully with chemotherapy and surgical embolectomy. So a young patient presenting with </span>deep vein thrombosis<span> should be investigated not only to establish any thrombophilic pre-disposition, but also let the clinician to suspect for any local malignancy. Treatment depends upon the proximal extent of tumoral </span></span></span>thrombus. With advances in imaging and chemotherapeutic regimens early diagnosis is possible and appropriate treatment planning improves the prognosis. To our knowledge skeletal Ewing's sarcoma with bland thrombosis is a known entity however no such case with direct invasion of tumor into veins leading to tumoral </span>venous thrombosis has been reported in medical literature.</span></span></span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e41-e44"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.04.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82162777","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.04.010
Silvia Gaia , Andrea Marengo , Anna Morgando , Francesca Barisone , Jochen Maass , Franco Brunello , Mario Rizzetto
It is presented an impressive image of a cholangio-Magnetic Resonance Imaging in a bilateral Caroli disease. The innovative technique of 3D imaging elaboration allowed to perfectly build up the anomalies of the biliary tract.
{"title":"3D cholangio-Magnetic Resonance Imaging in Caroli disease","authors":"Silvia Gaia , Andrea Marengo , Anna Morgando , Francesca Barisone , Jochen Maass , Franco Brunello , Mario Rizzetto","doi":"10.1016/j.ejrex.2011.04.010","DOIUrl":"10.1016/j.ejrex.2011.04.010","url":null,"abstract":"<div><p>It is presented an impressive image of a cholangio-Magnetic Resonance Imaging in a bilateral Caroli disease<span>. The innovative technique of 3D imaging elaboration allowed to perfectly build up the anomalies of the biliary tract.</span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e45-e46"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.04.010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90376598","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.04.009
Sanaa El Mouhadi, Latifa Chat, Rachida Dafiri
Leukoencephalopathy with cerebral calcifications and cysts (LCC) is a recently described and extremely rare entity of unknown origin characterized radiologically by white matter abnormalities, calcifications and cysts. The onset of this disorder occurs from early infancy to adolescence and there is no specific clinical feature suggestive of this disorder. We report a new case of this rare entity and emphasize CT and MRI findings that permit to assess diagnosis.
{"title":"Leukoencephalopathy with extensive brain calcifications and parenchymal cysts in a child","authors":"Sanaa El Mouhadi, Latifa Chat, Rachida Dafiri","doi":"10.1016/j.ejrex.2011.04.009","DOIUrl":"10.1016/j.ejrex.2011.04.009","url":null,"abstract":"<div><p>Leukoencephalopathy<span> with cerebral calcifications and cysts (LCC) is a recently described and extremely rare entity of unknown origin characterized radiologically by white matter abnormalities, calcifications and cysts. The onset of this disorder occurs from early infancy to adolescence and there is no specific clinical feature suggestive of this disorder. We report a new case of this rare entity and emphasize CT and MRI findings that permit to assess diagnosis.</span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e85-e88"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.04.009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72691110","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.04.015
Fadi Benaghmouch, El Mehdi Aalala, Abdelmalek Hrora, Abdeslam Benamer, Farid Sabbah, Mohamed Ahallat, Mohamed Raiss
Torsion of the greater omentum is a rare condition of acute abdomen. We, herein, report a case of omentum torsion in a 31-year-old man with occlusive syndrome and abdominal pain. The preoperative diagnosis was accurately accomplished using computerized tomography (CT). Operative management was adopted with rapid and uneventful recovery. Knowledge of this pathology is important to the surgeon because it mimics the common causes of acute surgical abdomen.
{"title":"Acute abdomen for omental torsion","authors":"Fadi Benaghmouch, El Mehdi Aalala, Abdelmalek Hrora, Abdeslam Benamer, Farid Sabbah, Mohamed Ahallat, Mohamed Raiss","doi":"10.1016/j.ejrex.2011.04.015","DOIUrl":"10.1016/j.ejrex.2011.04.015","url":null,"abstract":"<div><p>Torsion of the greater omentum<span> is a rare condition of acute abdomen<span>. We, herein, report a case of omentum torsion in a 31-year-old man with occlusive syndrome and abdominal pain. The preoperative diagnosis was accurately accomplished using computerized tomography (CT). Operative management was adopted with rapid and uneventful recovery. Knowledge of this pathology is important to the surgeon because it mimics the common causes of acute surgical abdomen.</span></span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e55-e57"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.04.015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72826948","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.05.004
Shenghua Hao , Xiangwu Yang , Deling Yu
Although a lot of types of tumor may develop in the liver, liver amyloidoma is the rare lesion. Here we report the first case of amyloidoma occurring in liver. Similar to other types of liver tumor, CT image is fundamental to the diagnosis of liver amyloidoma.
{"title":"Primary liver amyloidoma","authors":"Shenghua Hao , Xiangwu Yang , Deling Yu","doi":"10.1016/j.ejrex.2011.05.004","DOIUrl":"10.1016/j.ejrex.2011.05.004","url":null,"abstract":"<div><p>Although a lot of types of tumor may develop in the liver, liver amyloidoma is the rare lesion. Here we report the first case of amyloidoma occurring in liver. Similar to other types of liver tumor, CT image is fundamental to the diagnosis of liver amyloidoma.</p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e77-e79"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.05.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74027765","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 : 2011-08-01DOI: 10.1016/j.ejrex.2011.04.013
Fatma Çağlayan, Ümmühan Tozoğlu
The purpose of this case report is to illustrate and discuss the importance of cone beam computed tomography (CBCT) for accurate diagnose of mandibula fracture. A case of maxillofacial trauma was used for this report. A 17-year-old male patient was referred to Oral Diagnosis and Radiology Department with a history of maxillofacial trauma. The history of patient revealed a traumatic injury on his face because of ball stroke. The patient as initially examined in emergency department and it was diagnosed a mandible fracture in emergency department by a 2D lateral skull projection. His clinical examination was unremarkable. We had not encountered any fracture in maxillofacial region with either panoramic view or CBCT. This case report accentuates that two dimensional plain radiography techniques may be misleading for accurate diagnosis of mandible fracture.
{"title":"Cone beam computed tomography for accurate diagnosis of suspected fracture of the mandible","authors":"Fatma Çağlayan, Ümmühan Tozoğlu","doi":"10.1016/j.ejrex.2011.04.013","DOIUrl":"10.1016/j.ejrex.2011.04.013","url":null,"abstract":"<div><p>The purpose of this case report is to illustrate and discuss the importance of cone beam computed tomography<span><span> (CBCT) for accurate diagnose of mandibula fracture<span>. A case of maxillofacial trauma was used for this report. A 17-year-old male patient was referred to </span></span>Oral Diagnosis<span><span> and Radiology Department with a history of maxillofacial trauma. The history of patient revealed a traumatic injury on his face because of ball stroke. The patient as initially examined in </span>emergency department and it was diagnosed a mandible fracture in emergency department by a 2D lateral skull projection. His clinical examination was unremarkable. We had not encountered any fracture in maxillofacial region with either panoramic view or CBCT. This case report accentuates that two dimensional plain radiography techniques may be misleading for accurate diagnosis of mandible fracture.</span></span></p></div>","PeriodicalId":100506,"journal":{"name":"European Journal of Radiology Extra","volume":"79 2","pages":"Pages e51-e53"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ejrex.2011.04.013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76870217","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}