Radiology Research and Practice最新文献

{"title":"Contrast Medium Use in Computed Tomography for Patients Presenting with Headache: 4-year Retrospective Two-Center Study in Central and Western Regions of Ghana.","authors":"Bashiru Babatunde Jimah,&nbsp;Benjamin Dabo Sarkodie,&nbsp;Asare Kwaku Offei,&nbsp;Ewurama Andam Idun,&nbsp;Dorothea Anim,&nbsp;Edmund Brakohiapa,&nbsp;Benard Ohene Botwe","doi":"10.1155/2022/4736455","DOIUrl":"https://doi.org/10.1155/2022/4736455","url":null,"abstract":"<p><strong>Background: </strong>Contrast medium (CM) administration during computed tomography (CT) enhances the accuracy in the detection and interpretation of abnormalities. Evidence from literature also validate the essence of CM in imaging studies. CT, by virtue of its ubiquity, ease of use, speed, and lower financial footprint, is usually the first investigation in cases of headache. Through a multicenter retrospective analysis, we compared findings of contrast-enhanced CT (CECT) to noncontrast-enhanced CT (NCECT) head examinations among patients presenting with headache.</p><p><strong>Methods: </strong>A multicenter retrospective analysis of four years' CT head examination data at two radiology centers located in Central and Western Regions of Ghana were reviewed. Records of patients who presented with headache as principal complaint between January 2017 and December 2020 were reviewed. A total of 477 records of patients with headache were identified, retrieved and evaluated. A Chi-square test and Fisher exact test were used to compare the CECT and NCECT groups. Binary logistic regression analysis was computed to assess association between CECT and each CT findings. Statistical significance was considered at <i>p</i> < 0.05 with a 95% confidence interval.</p><p><strong>Results: </strong>A significant proportion of the patients was females (51.8% in CECT and 60% in NCECT). The NCECT group (40.06 ± 14.76 years) was relatively older than the CECT group (38.43 ± 17.64 years). There was a significant difference between the CECT and NCECT in terms of age (<i>p</i>=0.002) and facility CT was performed (<i>p</i> < 0.0001). The rate of abnormalities was higher in CECT (43.5%, 166/382) compared NCECT (37.9%, 36/95). There was no significant association between CT head findings and contrast enhancement.</p><p><strong>Conclusion: </strong>CECT examination accounted for 5.6% increase in the detection of head abnormalities. Efforts required to establish local standard operation procedures (SOPs) for contrast medium use especially in CT head examinations. Further studies to improve the knowledge of agents, mechanism of action, and safety of contrast media used among practitioners in Ghana is recommended.</p>","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9553476/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33514831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artifacts in Dual-Energy Chest Radiography","authors":"A. Vasil’ev, D. I. Naumova","doi":"10.52560/2713-0118-2022-5-50-56","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-5-50-56","url":null,"abstract":"The aim of this research is to analyze artifacts in dual-energy chest radiography: their appearance and how to eliminate them. A total of 252 patients were examined in random order by using dual-energy radiography. As a result, 756 images were analyzed. This review describes the most important and most prevalent of them, including motion artifacts - 58 (41,4%), quantum noise – 55 (39,2%) and decreasing the suppression of bony elements on soft-tissue-selective images – 27 (19,3%). The main reason of dual-energy chest radiography artifacts is incorrect image reconstruction parameters.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87133930","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":"Interexpert Agreement Between Emergency Neuroradiologists with Different Levels of Experience in the Rating of ASPECTS","authors":"P. Andropova, P. Gavrilov, I. P. Kazantseva, N. I. Kochanova, A. Narkevich, T. Trofimova","doi":"10.52560/2713-0118-2022-5-10-25","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-5-10-25","url":null,"abstract":"Fifteen radiologists independently evaluated fifty non-contrast brain computed tomography of patients with middle cerebral artery (MCA) stroke. Within-group agreement was either negligible or moderate, and the best inter-expert agreement was observed between neuroradiologists with 1 to 3 years of experience. Our study allows us to conclude that ASPECTS is not an ideal tool for standardizing the diagnosis of MCA stroke, therefore, it is necessary to develop new models of standardization systems, as well as the use of hydride diagnostics, including automatic analysis.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77849986","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":"Changes in Cerebral Perfusion According to Single Photon Emission Computed Tomography after Coronary Artery Bypass Grafting and Simultaneous Interventions on the Carotid and Coronary Arteries","authors":"A. Korotkevich, S. Semenov, O. Maleva, O. Trubnikova","doi":"10.52560/2713-0118-2022-5-26-38","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-5-26-38","url":null,"abstract":"Goal of investigation was comparison and assessment of the state of cerebral perfusion according to SPECT data after coronary artery bypass grafting and simultaneous surgical intervention on the carotid and coronary arteries.Brain perfusion data were studied in 34 cardiac surgical patients who underwent surgical correction under conditions of cardiopulmonary bypass: simultaneous intervention on the coronary and carotid arteries (n = 21) and coronary artery bypass grafting (n = 13). The study of the brain was carried out by SPECT with the radiopharmaceutical 99mTc-HMPAO (Ceretek).In the group with CABG, there was a statistically significant decrease in the CBF values in the region of the caudate nucleus on the right, in both occipital and parietal lobes (p = 0.004193). In the group with simultaneous interventions, a significant decrease in the CBF indices in the right occipital and left parietal lobes (p = 0.020672), an increase in the indices in the left temporal lobe (p = 0.011286) was revealed.CBF indicators in the group with simultaneous interventions are significantly lower than those in the group with CABG both in the preoperative and postoperative periods.The data obtained indicate that patients with combined atherosclerotic lesions of the coronary and carotid arteries have significantly lower values of the CBF in comparison with patients with isolated changes in the coronary arteries.Coronary artery bypass grafting and simultaneous surgical interventions on the carotid and coronary arteries under cardiopulmonary bypass may be accompanied by a significant decrease in regional cerebral blood flow in certain areas of the brain, and these changes in the CABG group can be traced in a larger number of analyzed areas.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75357215","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":"HIV-associated non-Hodgkin’s Lymphomas (Literature Review with Own Clinical Cases)","authors":"N. Klimova, A. O. Ramzina, A. Gaus, I. V. Bazhukhina, Yu. G. Karpenko","doi":"10.52560/2713-0118-2022-5-57-68","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-5-57-68","url":null,"abstract":"This article provides a review of the literature on HIV-associated tumors (HATs) such as diffuse large B-cell lymphoma, Burkitt’s lymphoma, plasmablastic lymphoma, and anal canal lymphoma. The presented material is supplemented with own observations and illustrative material.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73306401","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":"Temporomandibular Joint Conditions in Patients with Craniofacial Microsomia (Literature Review)","authors":"N. I. Imshenetskaya, D. A. Lezhnev, O. Z. Topol’nitskiy","doi":"10.52560/2713-0118-2022-4-20-29","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-4-20-29","url":null,"abstract":"Syndromes of I and II gill arches called maxillofacial dysostoses are accompanied by damage of temporomandibular joint (TMJ). Craniofacial microsomia is one of the of maxillofacial dysostoses. This syndrome has a number of features associated with clinical manifestations which should be taken into account at steps of the diagnosis and treatment of such patients. The degree of mandibular hypoplasia in this pathology can vary from 0 to 3, and it is inversely proportional to the integrity of the articular disc on the side of the lesion. An increased mechanical load on a healthy joint leads to its dysfunction and dislocation of the articular disc at the healthy side. In addition to hypoplasia of bone structures, craniofacial microsomia is accompanied by subatrophy of masticatory muscles and that in couple leads to malocclusion and myodynamic imbalance. Before drawing up a treatment plan it is necessary to study the state of the TMJ on both sides using multislice computed tomography (MSCT) and magnetic resonance imaging (MRI). The approach to treatment should be individual, combined, staged, based on the severity of the symptom complex.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76966717","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":"Computed Tomography of the Lungs as a Means of Predicting Lethal Outcome in Cancer Patients with Pneumonia Caused by the SARS-CoV-2 Virus","authors":"V. Parshin, D. A. Lezhnev, E. E. Berezhnaia, A. V. Mishina","doi":"10.52560/2713-0118-2022-5-39-48","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-5-39-48","url":null,"abstract":"The global scientific community has recognized the high importance of lung CT as a diagnostic method. The objective of this study is to prove the significance of lung CT as a means of predicting fatal outcomes of COVID–19 viral pneumonia in patients with a severe and extremely severe course of the disease. The volume of lung damage was retrospectively estimated in postmortem studies of 26 patients with the burden of cancer and in 78 patients without any cancer history (the control group). Lung CT was performed on the day of death and maximum 3 days before it. We concluded that the patients with cancer died with a lesion volume two times smaller than those without cancer, 32.38 ± 17.41% and 69.21 ± 11.63%, respectively. Thus, lung CT is not only a diagnostic tool, but it can also predict the fatal outcome of SARS-CoV-2 pneumonia (COVID-19) in patients with a severe and extremely severe course of the disease.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81549011","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":"Methods of Perforator Vessels Visualization in Perforator Flap Preoperative Planning (Literature Review)ive planning (Review article)","authors":"A. Trefilov, E. Kryukov, V. Troyan, S. Tereshchuk, V. A. Suharev, I. A. Aseeva, E. V. Gajdukova","doi":"10.52560/2713-0118-2022-4-57-69","DOIUrl":"https://doi.org/10.52560/2713-0118-2022-4-57-69","url":null,"abstract":"Preoperative detection of perforator vessels in the perforator flap planning is an actual problem in clinical practice. There are various methods to visualize the localization of perforator vessels. This review presents the main of these methods with a description of their capabilities, advantages and limitations, as well as describes the priorities for using one or another approach depending on the localization of the donor site.","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80439738","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":"Decreased Hospital Length of Stay for ICH and PE after Adoption of an Artificial Intelligence-Augmented Radiological Worklist Triage System.","authors":"Michael Petry,&nbsp;Charlotte Lansky,&nbsp;Yosef Chodakiewitz,&nbsp;Marcel Maya,&nbsp;Barry Pressman","doi":"10.1155/2022/2141839","DOIUrl":"https://doi.org/10.1155/2022/2141839","url":null,"abstract":"<p><p>The purpose of the study was to determine whether there was a difference in the length of stay (LOS) for inpatients diagnosed with intracranial hemorrhage (ICH) or pulmonary embolism (PE) prior to and following implementation of an (AI) triage software. A retrospective review was performed for patients that underwent CT imaging procedures related to ICH and PE from April 2016 to October 2019. All patient encounters that included noncontrast head computed tomography (CT) or CT chest angiogram (CTCA) procedures, identified by the DICOM study descriptions, from April 2016 to April 2019 were included for ICH and PE, respectively. All patients that were diagnosed with ICH or PE were identified using ICD9 and ICD10 codes. Three separate control groups were defined as follows: (i) all remaining patients that underwent the designated imaging studies, (ii) patients diagnosed with hip fractures, and (iii) all hospital wide encounters, during the study period. Pre-AI and post-AI time periods were defined around the deployment dates of the ICH and PE modules, respectively. The reduction in LOS was 1.30 days (95% C.I. 0.1-2.5), resulting in an observed percentage decrease of 11.9% (<i>p</i> value = 0.032), for ICH and 2.07 days (95% C.I. 0.1-4.0), resulting in an observed percentage decrease of 26.3% (<i>p</i> value = 0.034), for PE when comparing the pre-AI and post-AI time periods. Reductions in LOS were observed in the ICH pre-AI and post-AI time period group for patients that were not diagnosed with ICH, but that underwent related imaging, 0.46 days (95% C.I. 0.1-0.8) resulting in an observed percentage decrease of 5% (<i>p</i> value = 0.018), and inpatients that were diagnosed with hip fractures, 0.60 days (95% C.I. 0.1-1.2) resulting in an observed percentage decrease of 8.3% (<i>p</i> value = 0.004). No other significant decrease in length of stay was observed in any of the other patient groups. The introduction of computer-aided triage and prioritization software into the radiological workflow was associated with a significant decrease in length of stay for patients diagnosed with ICH and PE.</p>","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9411003/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33443706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Mucous Retention Cyst Prevalence on Digital Panoramic Radiographs in the Local Population of Iran.","authors":"Homa Rastegar,&nbsp;Fereshteh Osmani","doi":"10.1155/2022/8650027","DOIUrl":"https://doi.org/10.1155/2022/8650027","url":null,"abstract":"<p><strong>Introduction: </strong>Inflammatory diseases and cysts such as mucous retention cysts (MRCs) and benign tumors include a large proportion of lesions of the mouth, teeth, and jaw. The most common complication of this lesion is sinusitis. Due to the high frequency of these cysts in panoramic radiography of patients referred to dentistry, this study aimed to evaluate the frequency of mucous retention cysts in the maxillary sinus on panoramic images of the local population in Birjand in the year 2020.</p><p><strong>Methods: </strong>In this descriptive research design study, 1624 digital panoramic radiographs of patients referred to the oral and maxillofacial radiology department of Birjand Dental School were selected randomly. Cases were evaluated in terms of MRC appearance by two oral and maxillofacial radiology specialists. Then, based on sex, location, and size of the cysts, the images were assessed. In the predesigned checklists, data were recorded. The MRC diagnosis was confirmed by observation of a dome-shaped radiopaque view on the floor or sinus walls with a smooth surface with no cortical margin. MRCs were categorized into one of three groups by size: 1- less than 10 mm, 2- between 10 and 20 mm, and 3- more than 20 mm. Bilateral or unilateral involvement of lesions was noted. Seasons of the year (<i>P</i> < 0.05). There was no significant relationship between the month of the year and the prevalence of cysts (<i>P</i> > 0.05).</p><p><strong>Results: </strong>MRCs were detected in 80 panoramic images of 1624 (9/4), of which 54 patients (67.5%) were male and 26 patients (32.5%) were female. Of those 34 (42.5%), the total cases were between 30 and 40 years old. Most cysts (58.8%) were in the right sinus, and their size was 10-20 mm mainly (43.4%). Based on the results, there was a significant relationship between the prevalence of MRCs with age and sex.</p><p><strong>Conclusions: </strong>Panoramic images are so helpful in MRC detection. In this study, the frequency of MRCs is the highest in males between 30 and 40 years old. These lesions are reported mainly as unilateral and solitary in spring.</p>","PeriodicalId":51864,"journal":{"name":"Radiology Research and Practice","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9377968/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}