Radiology Research and Practice最新文献_第10页

Diffusion-Weighted Magnetic Resonance Imaging in the Evaluation of Wilms Tumors: Correlation with Histological Data. Pilot Study 弥散加权磁共振成像对Wilms肿瘤的评价:与组织学资料的相关性。试点研究

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-28-37

E. E. Manzhurtsevа, V. A. Lopatina, P. Menshchikov, G. Tereshchenko

{"title":"Diffusion-Weighted Magnetic Resonance Imaging in the Evaluation of Wilms Tumors: Correlation with Histological Data. Pilot Study","authors":"E. E. Manzhurtsevа, V. A. Lopatina, P. Menshchikov, G. Tereshchenko","doi":"10.52560/2713-0118-2021-5-28-37","DOIUrl":"https://doi.org/10.52560/2713-0118-2021-5-28-37","url":null,"abstract":"The aim of the study is to assess the difference in apparent diffusion coefficient (ADC) values depending on the degrees of malignancy of Wilms’ tumor. The study includes 64 patients with verified Wilms tumor after a course of chemotherapy, before undergoing surgical treatment. The patients were examined using scanners with magnetic field induction of 3.0 and 1,5 T. ADC data collection (mm2/s) was carried out using specialized software. Statistical analysis was performed using the Graphpad Prism software package. Based on the results of this study, average ADC values were obtained for histological types of Wilms’ tumors distributed by clinical risk groups: 0.4 × 10-3 mm2/s — for the low grade of malignancy, 1.1 × 10-3 mm2/s — for the average grade of malignancy and 0.6 × 10-3 mm2/s — for the high grade. In addition, for the average grade of malignancy, the ADC values were divided into groups depending on the cellular composition — 1 ± 0.2 × 10-3 mm2/s — for the regressive and mixed type; 0.9 ± 0.2 × 10-3 mm2/s — for the epithelial type; 1.3 ± 0.4 × 10-3 mm2/s — for the stromal type. Thus, diffusion-weighted MRI can be a useful tool in the initial assessment and differential diagnosis of patients with Wilms tumor.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"31 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86958553","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}

引用次数: 0

The Role of Doppler Ultrasound in the Diagnosis of Postnatal Testicular Torsion in Children 多普勒超声在儿童出生后睾丸扭转诊断中的作用

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-69-81

E. B. Olkhova, S. Y. Borisov, M. V. Topolnik, A. Y. Tagirova, S. V. Zhumasitov, T. V. Mukaseeva

引用次数: 1

Ultrasound in the Diagnosis of Perinatal Ischemic Strokes (Literature Review with Their Own Clinical Observations) 超声在围产期缺血性脑卒中诊断中的应用(文献综述及自身临床观察)

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-100-114

Yu.K. Bykova, L. Ushakova, E. A. Filippova, A. Sugak, K. Vatolin, V. Bychenko, V. Zubkov, A. Suvorov

引用次数: 0

Cardiac and Visceral Signs of Connective Tissue Dysplasia in Children with Juvenile Rheumatoid Arthritis According to Ultrasound Examination Data 根据超声检查资料，儿童类风湿关节炎结缔组织发育不良的心脏和内脏征象

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-91-98

A. Yusufov, I. A. Cherkasova, E. Lavrova, A. A. Plyukhin

引用次数: 0

Ultrasound Еxamination of the Еxtrahepatic Bile Ducts in Children (Literature Review with our own Clinical Observations) 儿童Еxtrahepatic胆管超声Еxamination检查(文献综述及临床观察)

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-140-149

A. Yusufov, M. I. Medvedeva, A. A. Plyukhin

引用次数: 0

Radiology Imaging of Bronchiectasis in Children and Adolescents (Literature Review with Own Observations) 儿童和青少年支气管扩张症的影像学表现(附文献综述)

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-115-128

P. Gavrilov

{"title":"Radiology Imaging of Bronchiectasis in Children and Adolescents (Literature Review with Own Observations)","authors":"P. Gavrilov","doi":"10.52560/2713-0118-2021-5-115-128","DOIUrl":"https://doi.org/10.52560/2713-0118-2021-5-115-128","url":null,"abstract":"Timely detection of bronchiectasis in children is of great prognostic value. The importance of modern bronchiectasis in children is due to their possible reversibility over time with effective treatment, as well as a number of significant differences between bronchiectasis in childhood and onset in children, which may reflect different phenotypes of bronchiectasis. In adult patients with bronchiectasis that began in childhood, the pathological process has a more severe and worse prognosis compared to bronchiectasis that began in adulthood. In 2020, the European Respiratory Society proposed a new formulation of the terminal «bronchiectasis» for children and adolescents, now this term refers to an abnormal expansion of the bronchi by computed tomography (CT) of the chest, which, if detected early, can be reversible. CT is the true «gold standard» for confirming bronchiectasis in children and adolescents. This method is included in the minimum set of tests for children and adolescents with suspected bronchiectasis according to the recommendations of the European Respiratory Society. When conducting CT, it is recommended to perform a continuous spiral scan with a collimation of 1 mm, the study is carried out without intravenous use using low-dose protocols. To assess the state of the bronchi in children and adolescents, it is necessary to use the pediatric norms of the broncho-arterial ratio (> 0.8). At the same time, radiation methods are not decisive in establishing the causes of bronchiectasis and only in rare cases can help in establishing bronchiectasis. Dynamic observation of bronchiectasis for children and adolescents is determined individually. Consideration should be given to repeat chest computed tomography scans to answer the question that will change treatment.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"46 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77217052","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}

引用次数: 0

Visualization of Lesions of Metaphyses and Epiphyses of Bones in Newborns and Young Children 新生儿和幼儿骨的形而上和骨骺病变的可视化

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-82-90

N. Sholokhova

引用次数: 1

Secondary Iron Overload in Pediatric Hematology: the Priority of Free-Breathing Liver Study at 3.0 T Magnetic Resonance Scanner in Children with Severe Iron Overload 小儿血液学继发性铁超载:3.0 T磁共振扫描对严重铁超载儿童自由呼吸肝脏的优先研究

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-39-53

E. E. Manzhurtsevа, G. Tereshchenko, D. Kupriyanov, G. Novichkova

{"title":"Secondary Iron Overload in Pediatric Hematology: the Priority of Free-Breathing Liver Study at 3.0 T Magnetic Resonance Scanner in Children with Severe Iron Overload","authors":"E. E. Manzhurtsevа, G. Tereshchenko, D. Kupriyanov, G. Novichkova","doi":"10.52560/2713-0118-2021-5-39-53","DOIUrl":"https://doi.org/10.52560/2713-0118-2021-5-39-53","url":null,"abstract":"The aim of the study was to compare the effectiveness and scanning features of iron detection in the liver based on 3T MR scanner data using a breath holding and free breathing sequences in children with iron overload. 108 patients aged of 3 to 17 years with secondary iron overload associated with the regular blood transfusions underwent an MRI study on a 3.0 T MR scanner using specialized sequences for obtaining relaxometric maps: 3T-mGRE and 3T-uTE. The quality of the images received by the 3T-mGRE and 3T-uTE sequences was assessed by determining the signal-to-noise ratio (SNR). The SNR of 3T-uTE was found to be 8 times higher than the SNR of 3T-mGRE. In addition, it was found that for patients with an iron overload less than 25 mg/g the 3T-mGRE and 3T-uTE sequences showed the same efficacy in iron detection in the liver (r = 0.99, p = 0.54). The concentration of iron in the liver in patients with extremely severe iron overload could be calculated only using 3T-uTE relaxometric maps due to the high approximation error of the results obtaining by 3T-mGRE maps. These data demonstrate the possibility of using the 3T-mGRE sequence to determine the concentration of iron in the liver below 25 mg/g. However, with extremely severe iron overload, it is better to use the 3T-uTE sequence.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"44 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76776114","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}

引用次数: 0

Ultrasound Diagnostics of the Kidney Carbuncle (Brief Literature Review and Case Report of the Girl 5 Years Old) 肾痈的超声诊断(文献复习并附5岁女童一例报告)

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-150-160

E. V. Dmitriyeva, M. Bulanov, V. E. Lykov, T. V. Barhatova

引用次数: 0

Differential Diagnosis of Anterior Mediastinal Masses in Children (Literature Review with Their Own Clinical Observations) 儿童前纵隔肿块的鉴别诊断(附文献及临床观察)

IF 2.7

Radiology Research and Practice Pub Date : 2021-11-02 DOI: 10.52560/2713-0118-2021-5-129-139

N. Kriventsova, G. Tereshchenko

引用次数: 0