Radiology Research and Practice最新文献

{"title":"Volumetric Analysis of the Jaws in Skeletal Class I and III Patients with Different Facial Divergence Using CBCT Imaging","authors":"Rama Yasser Alhawasli, M. Ajaj, M. Y. Hajeer, Assil Mohammad Raef Al-Zahabi, Luai Mahaini","doi":"10.1155/2022/2416555","DOIUrl":"https://doi.org/10.1155/2022/2416555","url":null,"abstract":"Aim The main objective was to evaluate any possible maxillary or mandibular volumetric difference between hyperdivergent skeletal Class III (CIII), normodivergent skeletal CIII, hypodivergent skeletal CIII, and normodivergent skeletal Class I (CI) patients using cone-beam computed tomography (CBCT) images. Also, the secondary objective was to investigate any possible correlation between CBCT-derived lateral cephalometric variables and the mandibular and maxillary volumes (MdV and MxV, respectively). Materials and Methods 80 CBCT images of patients between 18 and 32 years of age were taken with one CBCT imaging device (Scanora 3D®, Soredex, Tuusula, Finland). The sample consisted of four groups: 20 hypodivergent skeletal CIII (11 males and 9 females), 20 normodivergent skeletal CIII (7 males and 13 females), 20 hyperdivergent skeletal CIII (8 males and 12 females), and 20 normodivergent skeletal CI (5 males and 15 females). The volumes of both jaws and the ratio of MxV/MdV were obtained using Mimics™ 19 software (Materialise, NV, Belgium), and 2D variables were obtained from CBCT-derived lateral cephalogram using AudaxCeph™ software (Orthodontic software suite, Ljubljana, Slovenia). One-way ANOVA test and Kruskal–Wallis analysis were employed to detect any possible significant difference between the volumetric variables, whereas Pearson's and Spearman's correlation coefficients were calculated to detect any possible relationship between the 2D variables and the volumetric measurements. Results There were no statistically significant differences in the maxillary volume or maxillary/mandibular ratio between the four groups (p=0.081 and 0.432, respectively). There was a significant difference in MdV between CIII hypodivergent (higher mean) and CIII hyperdivergent (p=0.039). There were some correlations between the MdV and 2D variables in the four studied groups especially in the posterior facial height (S-Go) and the facial depth (N-Go). There were some weaker correlations between the MxV and some 2D variables in the CIII hypodivergent and hyperdivergent groups. Conclusions The mandibular volume of the Class III hypodivergent patient was significantly greater than that of the Class III hyperdivergent patients. Correlations between the maxillary or mandibular volumes were found with some of the 2D variables. The volume of both jaws increased when the maxillofacial complex moved toward a horizontal growth pattern.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"151 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79529873","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":"Clinic and Computed Tomographic Imaging of Lung Pathology in COVID-19 Comorbidity, Tuberculosis and Opportunistic Diseases in Patients with HIV Infection","authors":"A. V. Mishina, V. Mishin, D. A. Lezhnev, A. L. Sobkin","doi":"10.52560/2713-0118-2022-3-24-38","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-3-24-38","url":null,"abstract":"The clinic and computer tomographic imaging of lung pathology in COVID-19 comorbidity, tuberculosis and opportunistic diseases in patients with stage IV of HIV infection, in the phase of progression, in the absence of ART in 29 patients compared with similar 29 patients, but without COVID-19 were studied. It was found that the comorbidity of COVID-19 and tuberculosis, stage IV of HIV infection, in the phase of progression, in the absence of ART is characterized by the generalization of tuberculosis and the development of opportunistic lung diseases, severe clinical picture and visualization with computed tomography of dissemination syndrome, pulmonary pattern pathology and adenopathy, which practically does not differ from patients without COVID-19. It is not possible to diagnose this comorbidity by clinical and radiation methods of research. Special microbiological and molecular genetic methods are needed to study diagnostic material from the respiratory system and other organs in order to prescribe timely etiological treatment.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"81 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84132175","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":"Role of Magnetic Resonance Cholangiopancreatography in the Diagnosis of Cystic Transformation Hepaticocholedoch and Possible Postoperative Complications (Clinical Case)","authors":"O. V. Lukovkina, N. Sholohova, Y. Sokolov, T. V. Utkina","doi":"10.52560/2713-0118-2022-3-74-82","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-3-74-82","url":null,"abstract":"The article presents a description of a clinical case in a 7-year old child suffering occasional abdominal pain. An examination (3D magnetic resonance cholangiopancreatography) revealed a choledoch duct cyst type Iс. Surgical correction of congenital malformation of bile ducts was performed due to periodic attacks of pain, presence of concretions in the ducts, the possibility of malignification in the future and the development of possible complications. The clinical example demonstrates the high efficiency of MRCP for assessing anatomical and topographic relationships and concomitant structural anomalies that allow planning the tactics of surgical treatment. MRCP is important to use in the postoperative period to assess possible complications.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"149 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86205696","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":"Using Magnetic Resonance Liver Non-Contrast Perfusion in Patients with Diffuse Liver Diseases","authors":"A. Telesh, T. Morozova","doi":"10.52560/2713-0118-2022-3-39-50","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-3-39-50","url":null,"abstract":"The aim of this work is to evaluate possibilities of MR liver non-contrast perfusion in patients with diffuse liver diseases (DLD). Laboratory data, results of ultrasound examination with doppler ultrasonography of liver vessels, results of MRI with non-contrast MR perfusion (ASL-perfusion) of the liver was estimated in a group of patients with DLD. Potentials of assessment of ASL liver perfusion for clinical form prediction are described in the article. Potentials of using the assessment of ASL liver perfusion for information about a liver blood flow type and process activity indicators by blood chemistry are also described. It was established, that ASL MR of the liver is recommended to use in patients with diffuse liver diseases who admitted to a hospital, then in 1 month (in case of hypo/hyperperfusion) or in 6 months (in case of normal perfusion).","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"18 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88593179","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":"Evaluation of the Efficacy of Neoadjuvant Radiation Twice a Day Fractionation Therapy in Patients with Resectable Pancreatic Head Cancer","authors":"L. Korytova, D. Sklyar, E. V. Vlasova, A. Pavlovskiy, A. Polikarpov, E. V. Moiseenko, O. Korytov","doi":"10.52560/2713-0118-2022-2-9-23","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-2-9-23","url":null,"abstract":"The coronavirus of severe acute respiratory syndrome-2 (SARS-CoV-2) and the coronavirus infection caused by it, along with damage to the respiratory system, can lead to disorders of the central and peripheral nervous system. The article presents literature data and own observations of neurological disorders in patients with coronavirus disease in the superacute period. Pronounced neurological disorders are mainly observed in severe coronavirus disease and include acute ischemic stroke, subcortical micro- and macro— bleeding, acute necrotizing encephalopathy, Guillain-Barre syndrome. Factors potentially complicating the course of coronavirus disease and contributing to the development of neurological complications are hypertension, diabetes mellitus, chronic diseases of the heart and respiratory system. Based on existing publications and our own observations, we have systematized information about the relationship between coronavirus disease and neurological disorders, about possible factors contributing to the occurrence of stroke. The possibilities of using chest MSCT as the only method of radiation diagnostics for the early detection of viral pneumonia in patients receiving emergency and emergency care at the regional vascular center of BUZOO «GC BSMP No. 1» are considered. The use of this method, in the ultra-acute period of acute ischemic stroke, during the first 40 minutes from the moment of admission, can significantly reduce the time of diagnosis and mortality in patients with acute ischemic stroke and viral pneumonia.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"1 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76714760","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":"Multimodal Approach in the Diagnosis of Hippel – Lindau Disease. Case Report","authors":"D. S. Stegura, R. Konovalov, M. Krotenkova, M. Dreval’, P. Anufriev, A. N. Kovaleva, D. D. Kuryshev","doi":"10.52560/2713-0118-2022-2-84-93","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-2-84-93","url":null,"abstract":"Hippel-Lindau  disease is a rare hereditary combined pathology characterized by development of a variety of benign and malignant tumors in the central nervous system, kidneys, pancreas, adrenal glands, which causes a wide range of clinical manifestations. A comprehensive diagnostic approach using various imaging techniques such as ultrasound, magnetic resonance imaging, computed tomography, and genetic testing is an integral part of successful treatment.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"46 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82883946","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":"Oral Cancer Screening by Artificial Intelligence-Oriented Interpretation of Optical Coherence Tomography Images","authors":"K. Ramezani, M. Tofangchiha","doi":"10.1155/2022/1614838","DOIUrl":"https://doi.org/10.1155/2022/1614838","url":null,"abstract":"Early diagnosis of oral cancer is critical to improve the survival rate of patients. The current strategies for screening of patients for oral premalignant and malignant lesions unfortunately miss a significant number of involved patients. Optical coherence tomography (OCT) is an optical imaging modality that has been widely investigated in the field of oncology for identification of cancerous entities. Since the interpretation of OCT images requires professional training and OCT images contain information that cannot be inferred visually, artificial intelligence (AI) with trained algorithms has the ability to quantify visually undetectable variations, thus overcoming the barriers that have postponed the involvement of OCT in the process of screening of oral neoplastic lesions. This literature review aimed to highlight the features of precancerous and cancerous oral lesions on OCT images and specify how AI can assist in screening and diagnosis of such pathologies.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"1 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90208585","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":"Optimization of Image Quality and Organ Absorbed Dose for Pediatric Chest X-Ray Examination: In-House Developed Chest Phantom Study","authors":"T. Pengpan, N. Rattanarungruangchai, Juthathip Dechjaithat, Phawinee Panthim, Puntarika Siricharuwong, Ausanai Prapan","doi":"10.1155/2022/3482458","DOIUrl":"https://doi.org/10.1155/2022/3482458","url":null,"abstract":"Purpose This study aimed to identify proper exposure techniques to maintain optimal diagnostic image quality with minimum radiation dose for anteroposterior chest X-ray projection in pediatric patients. Methods Briefly, an in-house developed pediatric chest phantom was constructed. Next, nanodot OSLDs were used for organ absorbed dose measurement and placed in the lung area, and the phantom was exposed to various exposure techniques (ranging from 50 to 70 kVp with 1.6, 2, and 2.5 mAs). After that, the phantom was used to assess image quality parameters, including SNR and CNR. Two radiologists assessed the subjective image quality using a visual grading analysis (VGA) technique. Finally, the figure of merit (FOM) was analyzed. Results The developed phantom was constructed successfully and could be useful for dose measurement and image quality assessment. The absorbed dose varied from 0.009 to 0.031 mGy for the range of exposure techniques used. SNR and CNR showed a gradually increasing trend, while kVp and mAs values were increased. The highest kVp (70 kVp) produced the highest SNR and CNR, exhibiting a significant difference compared with 50 and 60 kVp (P < 0.05). The overall VGA score was 3.2 ± 0.3, and the low kVp technique demonstrated better image quality compared with the reference image. Conclusion The optimized exposure technique was identified as 60 kV and 2.5 mAs, indicating the highest FOM score. This work revealed practicable techniques that could be implemented into clinical practice for performing pediatric chest radiography.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"13 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90235570","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":"Intussusception in a Newborn. Clinical Observation","authors":"E. B. Olkhova, T. V. Mukaseeva, V. Soboleva, A. S. Kirsanov, I. S. Аllakhverdiev","doi":"10.52560/60/2713-0118-2022-2-65-74","DOIUrl":"https://doi.org/10.52560/60/2713-0118-2022-2-65-74","url":null,"abstract":"Intestinal intussusception in a newborn is a casuistic rarity, the clinical symptoms of which are nonspecific, and patients are regarded for a relatively long time as patients with necrotic enterocolitis. There are no unambiguous radiological signs of this  pathology,  especially with  atypical  variants of intussusception, when even pneumoirrigography is uninformative. In the vast majority of cases, the diagnosis is made only intra-operatively, when the development of intestinal obstruction or perforated peritonitis determines the need for surgical intervention. The publication presents a unique observation of preoperative echographic diagnosis and successful cure of prolonged small-intestinal invagination in a premature newborn 2 days of life, the cause of which was Meckel’s diverticulum.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"198 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72756060","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":"Evaluation of the influence of clinical information on the interpretation of digital chest radiographs","authors":"A. Vasil’ev, V. Nechaev","doi":"10.52560/2713-0118-2022-3-67-73","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-3-67-73","url":null,"abstract":"In this study, the impact of the availability and accuracy of the patient’s clinical, laboratory and anamnestic data on the conclusion of a radiologist was evaluated. To achieve this goal, three groups of protocols of 60 digital chest radiographs performed by five radiologists with different work experience were compared. At the first stage, a set of radiographs was provided without additional information, at the second stage — with reliable brief clinical, laboratory and anamnestic data and at the third stage - with unreliable data. As a result, it was shown that the availability of reliable and accurate clinical information is important for the interpretation of chest radiographs.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":"32 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75576748","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}