Radiologia Brasileira最新文献

{"title":"The global tilt: a new pillar in the radiological assessment of vertebral fracture risk.","authors":"André Yui Aihara","doi":"10.1590/0100-3984.2025.58.e6-en","DOIUrl":"10.1590/0100-3984.2025.58.e6-en","url":null,"abstract":"","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e6"},"PeriodicalIF":0.0,"publicationDate":"2025-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12613268/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145542122","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":"Relationship between the mean diameter of the thyroid lobes and the transverse diameter of the trachea: an ultrasound marker for goiters.","authors":"Luís Jesuíno de Oliveira Andrade, Gabriela Correia Matos de Oliveira, Luís Matos de Oliveira","doi":"10.1590/0100-3984.2025.0045","DOIUrl":"10.1590/0100-3984.2025.0045","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the relationship between the mean thyroid lobe diameter (MTLD) and the transverse tracheal diameter (TTD), as determined by ultrasound, in order to validate its efficacy as a quantitative marker of goiter.</p><p><strong>Materials and methods: </strong>Thyroid ultrasound images were analyzed. Standardized measurements included the MTLD [(transverse + anteroposterior diameter) ∕ 2], TTD, and thyroid volume [transverse diameter × anteroposterior diameter × length × 0.470]. Statistical correlation and regression analyses were employed to assess the interactions among those variables and their diagnostic utility in goiter detection.</p><p><strong>Results: </strong>A total of 300 thyroid ultrasound images (200 of adults and 100 of children/adolescents) were evaluated. We identified a significant correlation between the MTLD:TTD ratio and goiter. When the MTLD exceeded the normative TTD threshold (> 1.7 cm in adults; > 2.4 cm in children/adolescents), the mean thyroid volume was consistently elevated, in the adult patients-12.5 ± 2.1 mL (normal range, 7-10 mL)-and in the pediatric patients-18.3 ± 3.6 mL (normal range, 5.0-16.1 mL)-confirming goiter (<i>p</i> < 0.001). Regression analysis demonstrated a strong linear relationship between thyroid volume and the MTLD (R² = 0.82; β = 1.34; <i>p</i> < 0.001), with 89% sensitivity and 93% specificity for goiter prediction. An abnormal tracheal index (1.7-2.4 vs. the observed mean of 2.6 ± 0.3) was found to increase diagnostic accuracy (AUC = 0.94; 95% CI: 0.91-0.97).</p><p><strong>Conclusion: </strong>The MTLD:TTD ratio is a reliable ultrasound biomarker for goiter detection, demonstrating strong diagnostic performance and volumetric correlation.</p>","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20250045"},"PeriodicalIF":0.0,"publicationDate":"2025-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12613270/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145542119","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":"Tarsal tunnel syndrome: clinical insights, vascular etiologies, and the role of ultrasonography in the diagnosis.","authors":"Ocacir de Souza Reis Soares, Márcio Luís Duarte","doi":"10.1590/0100-3984.2025.0053","DOIUrl":"10.1590/0100-3984.2025.0053","url":null,"abstract":"<p><p>Tarsal tunnel syndrome results from compression or damage to the tibial nerve or its branches as they pass through the tarsal tunnel beneath the flexor retinaculum. Diagnosing tarsal tunnel syndrome is challenging because of nonspecific symptoms that overlap with those of other lower limb pathologies. Vascular disorders are common causes but are often overlooked. High-resolution ultrasonography has emerged as a valuable diagnostic tool, offering advantages over other imaging methods. This technique allows real-time assessment, identifying the factors that cause vascular compression and improving diagnostic accuracy. Increased awareness of the vascular contributions to tarsal tunnel syndrome can promote early diagnosis and improve treatment outcomes.</p>","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20250053"},"PeriodicalIF":0.0,"publicationDate":"2025-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12613267/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145542135","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":"Correlation between spinopelvic sagittal balance and vertebral fractures in postmenopausal women.","authors":"Leonor Garbin Savarese, Otávio Takassi Moritsugu, Luciana Mendes Cangussu Oliveira, Daniela Cristina Carvalho de Abreu, Francisco José Albuquerque de Paula, Marcello Henrique Nogueira-Barbosa","doi":"10.1590/0100-3984.2025.0037-en","DOIUrl":"10.1590/0100-3984.2025.0037-en","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the relationship between spinopelvic alignment and vertebral fracture in postmenopausal women with osteoporosis.</p><p><strong>Materials and methods: </strong>This was a retrospective cross-sectional study including 93 women diagnosed with osteopenia or osteoporosis by densitometry between June 2017 and March 2018. Using the software Surgimap to analyze lateral X-rays of the spine and pelvis, we measured the following spinopelvic parameters: pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), sagittal vertical axis (SVA), global tilt (GT), spinosacral angle (SSA), T1 pelvic angle (TPA), lumbar lordosis (LL), and thoracic kyphosis (TK). The spinopelvic parameters were assessed in relation to fracture occurrence by estimating prevalence ratios. Two groups (patients with and without fractures) were compared on the basis of their spinopelvic parameters. Vertebral fractures were graded by the Genant classification, and the spinal deformity index (SDI) was calculated as the sum of the grades. The SDI was found to correlate with spinopelvic parameters. Intraobserver and interobserver reliability for the measurement of the spinopelvic parameters was evaluated.</p><p><strong>Results: </strong>The GT correlated significantly with the presence of fractures; the incidence of fracture was found to increase by 2.1% for every 1-degree increase in the GT. The presence of fractures was not found to correlate significantly with the SS, PT, PI, LL, TK, SVA, or SSA. The GT was significantly greater in the group with fractures than in the group without fractures. The SDI correlated significantly with global sagittal balance, as measured by the GT.</p><p><strong>Conclusion: </strong>Fractures seem to be more prevalent among women with a higher GT. The SDI appears to correlate well with global sagittal balance, as assessed by the GT.</p>","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20250037en"},"PeriodicalIF":0.0,"publicationDate":"2025-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12571110/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145409827","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":"Diagnostic reference levels in interventional radiology: a systematic review.","authors":"Iana Quintanilha de Borba, Rochelle Lykawka, Nayron Medeiros Soares, Joaquim Maurício da Motta Leal Filho, Alexandre Bacelar, Matheus de Lima Ruffini, Adolfo Moraes de Souza, Fabiano Reis, Juliana Ávila Duarte","doi":"10.1590/0100-3984.2025.0016","DOIUrl":"10.1590/0100-3984.2025.0016","url":null,"abstract":"<p><strong>Objective: </strong>To comprehensively and impartially analyze the scientific evidence available for establishing diagnostic reference levels (DRLs) in interventional radiology.</p><p><strong>Method: </strong>This was a systematic review conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The search focused on studies related to interventional radiology and DRLs in PubMed/Medline and Embase. Studies involving computed tomography-guided procedures, studies with incomplete data, and systematic reviews were excluded. Two independent reviewers evaluated the studies, resolving discrepancies with a third reviewer. Articles were tabulated with information such as title, publication year, procedures, DRL values, and type of equipment used.</p><p><strong>Results: </strong>A total of 475 articles were identified. After duplicates had been excluded and eligibility criteria had been applied, the final sample comprised 30 articles. Most DRL values (73%) were reported at the local level, as defined by International Commission on Radiological Protection criteria, representing typical dose values from a sample within one or a few institutions. A total of 113 procedures were identified, with endovascular aneurysm repair and nephrostomy being the most frequently reported. We identified DRLs at national and regional scales, predominantly within Europe. Influencing factors included technology, operator experience, specific protocols, and optimization strategies. The analysis also identified a lack of longitudinal studies assessing changes over time. The use of dose management software emerged as an effective tool for facilitating data collection and DRL establishment.</p><p><strong>Conclusion: </strong>The lack of standardized procedural terminology hindered direct DRL comparisons. Our findings highlight a predominance of European studies and emphasize the need for broader international efforts to improve DRL implementation.</p>","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20250016"},"PeriodicalIF":0.0,"publicationDate":"2025-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12577727/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145431943","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":"Re: Quantitative assessment of bladder tissue properties using magnetic resonance fingerprinting: a pilot feasibility study in healthy volunteers.","authors":"Pradeep Tyagi","doi":"10.1590/0100-3984.2025.0095","DOIUrl":"10.1590/0100-3984.2025.0095","url":null,"abstract":"","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20250095"},"PeriodicalIF":0.0,"publicationDate":"2025-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12577719/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145431910","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":"Reply to: Unenhanced magnetic resonance imaging for the evaluation of sonographically indeterminate ovarian and adnexal masses.","authors":"Claudio Marcio Amaral de Oliveira Lima, Edson Marchiori, Antônio Carlos Coutinho Junior","doi":"10.1590/0100-3984.2025.0086","DOIUrl":"10.1590/0100-3984.2025.0086","url":null,"abstract":"","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20250086"},"PeriodicalIF":0.0,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12536710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145346798","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":"Imaging for the detection and evaluation of pulmonary edema: state of the art.","authors":"Thiago Krieger Bento da Silva, Matheus Zanon","doi":"10.1590/0100-3984.2025.58.e5-en","DOIUrl":"10.1590/0100-3984.2025.58.e5-en","url":null,"abstract":"","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e5"},"PeriodicalIF":0.0,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13051547/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147633559","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":"Pulmonary edema: what can it tell us? A pictorial essay.","authors":"Matheus Marcelino Dias, Eduardo Kaiser Ururahy Nunes Fonseca, Lucas Chagas Aquino, Roberta Castro Linhares, Lavínia Ferreira Dias, Pedro Paulo Teixeira E Silva Torres, Danilo Perussi Bianco, Murilo Marques Silva, Rodrigo Caruso Chate","doi":"10.1590/0100-3984.2024.0130-en","DOIUrl":"10.1590/0100-3984.2024.0130-en","url":null,"abstract":"<p><p>Pulmonary edema is a very prevalent condition, especially in the intensive care setting, and can have different origins and be caused by different mechanisms. Imaging tests, particularly computed tomography, are sometimes used in the diagnostic investigation of these patients, and may even help to elucidate the etiology. Therefore, it is essential that radiologists understand the dynamic nature of the changes associated with pulmonary edema and be able to recognize diagnostic clues that indicate possible etiologies, in addition to understanding the underlying mechanisms. This illustrated essay provides a concise review of the pathophysiology of pulmonary edema and highlights its main imaging findings, focusing on the clinical features that help to refine the etiological diagnosis.</p>","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20240130"},"PeriodicalIF":0.0,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13051549/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147633572","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":"The central vein sign and paramagnetic rim lesions: biomarkers for an accurate differential diagnosis between multiple sclerosis and migraine.","authors":"Viviana Regina Konzen, Alessandro Finkelsztejn, Raquel Prates Dos Santos, Adolfo Moraes de Souza, Matheus de Lima Ruffini, Renata Gomes Londero, Juliana Ávila Duarte","doi":"10.1590/0100-3984.2025.0015","DOIUrl":"10.1590/0100-3984.2025.0015","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to assess whether the evaluation of the central vein sign (CVS) and paramagnetic rim lesions (PRLs) using susceptibility-weighted magnetic resonance imaging (MRI) can distinguish multiple sclerosis (MS) from migraine.</p><p><strong>Materials and methods: </strong>In this single-center observational study, we conducted a cross-sectional analysis of the CVS, determining the proportion of CVS-positive lesions per individual and absolute counts, using thresholds of 3 lesions (select3*) and 6 lesions (select6*), and of PRLs in participants with MS and in those with migraine, from 3.0-T MRI brain scans.</p><p><strong>Results: </strong>The study included 20 participants with MS, 20 with migraine, and 20 included as healthy controls. The proportion of participants with CVS-positive lesions was higher in the MS group than in the migraine group (61.8% vs. 10.4%), and PRLs were observed exclusively in the MS group. The presence of at least one PRL and the select6* criterion demonstrated the highest diagnostic accuracy within the study sample.</p><p><strong>Conclusion: </strong>The detection of the CVS and of a PRL on 3.0-T MRI scans may serve as a reliable biomarker to differentiate MS from migraine.</p>","PeriodicalId":20842,"journal":{"name":"Radiologia Brasileira","volume":"58 ","pages":"e20250015"},"PeriodicalIF":0.0,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482283/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207357","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}