journal
https://read.qxmd.com/read/36926363/acute-and-chronic-changes-in-porcine-rete-mirabile-after-embolization-with-the-menox-system-angiographic-and-histopathological-analyses
#1
JOURNAL ARTICLE
Ricardo Miguel Costa de Freitas, Mauricio Ricardo Moreira da Silva Filho, Alessandro Rodrigo Belon, Brasil Chian Ping Jeng, Denilson Mayrink, José Guilherme Mendes Pereira Caldas
OBJECTIVE: To evaluate acute and chronic changes seen on angiographic and histopathological studies of porcine rete mirabile, comparing those treated with the Menox liquid embolic system (LES) and those treated with the Onyx LES. MATERIALS AND METHODS: Five pigs, each weighing approximately 35 kg, were submitted to rete mirabile embolization under general anesthesia and fluoroscopic guidance, with the Menox LES or Onyx LES. Four animals were treated with the Menox LES and underwent cerebral angiography, followed by euthanasia, at 1, 30, 60, and 90 days after embolization...
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926362/percutaneous-treatment-of-simple-renal-cysts-with-24-h-interval-ethanol-sclerotherapy
#2
JOURNAL ARTICLE
Hakki Muammer Karakas, Gulsah Yildirim
OBJECTIVE: To investigate the efficacy of 24-h interval multiple-session ethanol sclerotherapy for the treatment of simple renal cysts. MATERIALS AND METHODS: The study sample included 58 patients (mean age, 65.37 ± 11.95 years). We included 76 simple renal cysts that were treated with percutaneous aspiration with a minimum of two sessions of 95% ethanol sclerotherapy in a 24-h interval between sessions. Patients were evaluated at 1, 3, and 6 months after the intervention for the efficacy of the treatment...
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926361/computed-tomography-fluoroscopy-guided-percutaneous-biopsy-of-pulmonary-nodules-%C3%A2-10-mm-retrospective-analysis-of-procedures-performed-during-the-covid-19-pandemic
#3
JOURNAL ARTICLE
Thiago Franchi Nunes, Riccardo Inchingolo, Cristina Faria Kikuti, Bernardo Bacelar de Faria, Cezar Augusto Vendas Galhardo, João Ricardo Filgueiras Tognini, Edson Marchiori, Bruno Hochhegger
OBJECTIVE: To evaluate the diagnostic performance of computed tomography (CT) fluoroscopy-guided percutaneous transthoracic needle biopsy (PTNB) in pulmonary nodules ≤ 10 mm during the coronavirus disease 2019 pandemic. MATERIALS AND METHODS: Between January 1, 2020 and April 30, 2022, a total of 359 CT fluoroscopy-guided PTNBs were performed at an interventional radiology center. Lung lesions measured between 2 mm and 108 mm. Of the 359 PTNBs, 27 (7.5%) were performed with an 18G core needle on nodules ≤ 10 mm in diameter...
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926360/challenges-ahead
#4
EDITORIAL
Valdair F Muglia
No abstract text is available yet for this article.
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926359/radiation-safety-measures-in-diagnostic-nuclear-medicine-based-on-the-potential-radiation-dose-emitted-by-radioactive-patients
#5
JOURNAL ARTICLE
José Willegaignon, Samantha Cristina Pereira Fernandes, Rogério Alexandre Pelissoni, George Barbério Coura-Filho, Marcelo Tatit Sapienza, Carlos Alberto Buchpiguel
OBJECTIVE: To measure the potential radiation dose emitted by patients who have recently undergone diagnostic nuclear medicine procedures, in order to establish optimal radiation safety measures for such procedures. MATERIALS AND METHODS: We evaluated the radiation doses emitted by 175 adult patients in whom technetium-99m, iodine-131, and fluorine-18 radionuclides were administered for bone, kidney, heart, brain, and whole-body scans, as measured with a radiation detector...
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926358/new-magnetic-resonance-imaging-findings-in-patients-with-polymyalgia-rheumatica
#6
EDITORIAL
Marcello H Nogueira-Barbosa
No abstract text is available yet for this article.
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926357/systolic-spike-on-transcranial-doppler-ultrasound-in-brain-death-determination-a-matter-of-numbers
#7
JOURNAL ARTICLE
Nicola Morelli, Davide Colombi, Marco Spallazzi, Eugenia Rota, Emanuele Michieletti
No abstract text is available yet for this article.
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926356/-leave-me-alone-anatomical-structures-and-variations-seen-on-computed-tomography-of-the-temporal-bone
#8
REVIEW
Mehmet H Atalar, Nisa Başpınar, Doğukan Ege Atalar
The anatomical structure of the temporal bone is quite complex. There are a great number of anatomical variations that are often confused with temporal bone pathologies, especially fractures. It is important that radiologists and surgeons be able to recognize such variations.
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926355/imaging-evaluation-of-peripheral-nerves
#9
EDITORIAL
Clarissa Canella
No abstract text is available yet for this article.
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926354/complications-of-lung-transplantation-on-computed-tomography-pictorial-essay
#10
JOURNAL ARTICLE
Dâmaris Versiani Caldeira Gonçalves, Murilo Marques Almeida Silva, Eduardo Kaiser Ururahy Nunes Fonseca, Izabel de Oliveira Karam, Marcelo Buarque de Gusmão Funari, Rodrigo Caruso Chate
Lung transplantation is becoming increasingly more common as an alternative treatment for end-stage lung disease. Despite advances in laboratory testing, surgical technique, and donor/recipient selection, lung transplantation is still associated with significant mortality, due to postoperative complications. This paper consists of a brief review of postoperative complications in lung transplant recipients, illustrating those complications with computed tomography images.
2023: Radiologia Brasileira
https://read.qxmd.com/read/36926353/role-of-imaging-in-the-applicability-of-irreversible-electroporation-for-the-management-of-pancreatic-adenocarcinoma
#11
JOURNAL ARTICLE
Thiago Pereira Fernandes da Silva, Raquel Andrade Moreno, Rodrigo Pamplona Polizio, Rayssa Araruna Bezerra de Melo, Antônio Luiz de Vasconcelos Macedo, Luiz Tenório Siqueira de Brito
Pancreatic ductal adenocarcinoma is one of the most aggressive malignant neoplasms, with a one-year survival rate below 20%. Axial methods (computed tomography and magnetic resonance imaging) play a fundamental role in the diagnosis and staging of the disease, because they provide adequate anatomical resolution in the assessment of key structures, mainly vascular structures. Pancreatic ductal adenocarcinoma is most often discovered in advanced stages, when surgical resection is no longer feasible. In that scenario, minimally invasive treatment alternatives have been developed in attempts to change the natural history of the disease...
2023: Radiologia Brasileira
https://read.qxmd.com/read/36320376/morphometric-magnetic-resonance-imaging-study-of-the-quadriceps-tendon-in-hemodialysis-patients-comparison-with-non-dialyzed-controls
#12
JOURNAL ARTICLE
Luis Marcelo de Azevedo Malta, Jocemir Ronaldo Lugon, Alair Augusto Sarmet Moreira Damas Dos Santos, Leonardo Martins Machado
Objective: To evaluate the knees of individuals with renal failure who are on hemodialysis, using magnetic resonance imaging (MRI), comparing them with those of a group of individuals with normal renal function. Materials and Methods: This was a cross-sectional, observational, controlled study conducted between August 2018 and February 2020. The cases consisted of 15 patients who had been on hemodialysis for ≥ 5 years and did not have a quadriceps tendon rupture...
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320375/interictal-and-postictal-18-f-fdg-pet-ct-in-epileptogenic-zone-localization
#13
JOURNAL ARTICLE
Marcela Santos Carvalho, Marina Koutsodontis Machado Alvim, Elba Etchebehere, Allan de Oliveira Santos, Celso Dario Ramos, Juliana Luz Passos Argenton, Fernando Cendes, Bárbara Juarez Amorim
Objective: To evaluate the performance of 18 F-fluorodeoxyglucose positron-emission tomography/computed tomography ( 18 F-FDG PET/CT) in localizing epileptogenic zones, comparing 18 F-FDG injection performed in the traditional interictal period with that performed near the time of a seizure. Materials and Methods: We evaluated patients with refractory epilepsy who underwent 18 F-FDG PET/CT. The reference standards for localization of the epileptogenic zone were histopathology and follow-up examinations (in patients who underwent surgery) or serial electroencephalography (EEG) recordings, long-term video EEG, and magnetic resonance imaging (in patients who did not)...
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320374/assessment-of-body-composition-by-whole-body-densitometry-what-radiologists-should-know
#14
REVIEW
Lucas Gabriel Cruz de Menezes Chaves, Thiago José Martins Gonçalves, Almir Galvão Vieira Bitencourt, Ricardo Arroyo Rstom, Talita Rombaldi Pereira, Silvio Fontana Velludo
The analysis of body composition is a fundamental part of a nutritional status assessment, and the use of diagnostic imaging methods has been increasingly required for an adequate characterization of the lean body mass and fat mass. Body composition measurements are useful in evaluating the effectiveness of nutritional interventions and monitoring changes associated with aging and chronic diseases. Whole-body densitometry using dual-energy X-ray absorptiometry (DEXA) is one of the most widely used methods in clinical practice, allowing highly accurate assessment of the bone mineral content, lean body mass, and fat mass...
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320373/alterations-on-magnetic-resonance-imaging-of-the-neonatal-brain-correlations-with-prenatal-risk-factors-and-transfontanellar-ultrasound-findings
#15
JOURNAL ARTICLE
Jéssica Tedesco Sartori, Luciana Estacia Ambros, Giordana Isabela Siqueira Callegaro
Objective: To describe the alterations seen on magnetic resonance imaging (MRI) of the brain in newborns, correlating those alterations with the transfontanellar ultrasound (TFUS) findings, and to describe the main risk factors identified. Materials and Methods: We evaluated the examinations of 51 patients who were submitted to brain MRI with a neonatal protocol during hospitalization. We evaluated the MRI findings and correlated them with previous TFUS findings, using the last TFUS performed in order to minimize the risk of bias...
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320372/the-role-of-quantitative-imaging-in-chronic-obstructive-pulmonary-disease
#16
EDITORIAL
Danilo Tadao Wada
No abstract text is available yet for this article.
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320371/idiopathic-intracranial-hypertension-an-illustrated-guide-for-the-trainee-radiologist
#17
JOURNAL ARTICLE
Luísa Becker Savastano, Juliana Ávila Duarte, Thiago Bezerra, José Thiago de Souza Castro, Mariana Dalaqua, Fabiano Reis
Idiopathic intracranial hypertension is characterized by increased intracranial pressure, headache, and visual perturbations. Although the pathophysiology of idiopathic intracranial hypertension is obscure, several mechanisms have been proposed, such as increased cerebral blood volume, excessive cerebrospinal fluid volume (due to high production or impaired resorption), and inflammatory mechanisms as a likely cause of or contributor to impaired cerebrospinal fluid circulation. It predominantly affects women of reproductive age who are overweight or obese...
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320370/new-technique-for-the-assessment-of-the-growth-capacity-and-development-of-fetal-lungs-under-compressive-circumstances-using-mri-and-3d-models
#18
JOURNAL ARTICLE
Pedro Teixeira Castro, Edward Araujo Júnior, Jorge Lopes, Gerson Ribeiro, Heron Werner
No abstract text is available yet for this article.
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320369/role-of-magnetic-resonance-imaging-in-assessment-of-acetabular-and-femoral-version-in-developmental-dysplasia-of-the-hip
#19
JOURNAL ARTICLE
Karim Mohamed Elsharkawi, Mohamed Samy Barakat, Ali Abdel Karim Farahat, Amin Abdel-Razek Youssef Ahmed, Rim Aly Bastawi
Objective: To evaluate the role of magnetic resonance imaging (MRI) in the assessment of femoral and acetabular version in developmental dysplasia of the hip (DDH). Materials and Methods: This was a cross-sectional study of 20 consecutive patients with DDH (27 dysplastic hips) who were examined with MRI. In dysplastic and normal hips (DDH and comparison groups, respectively), we evaluated the following parameters: osseous acetabular anteversion (OAA); cartilaginous acetabular anteversion (CAA); femoral anteversion; osseous Mckibbin index (OMI); cartilaginous Mckibbin index (CMI); and the thickness of the anterior and posterior acetabular cartilage...
September 2022: Radiologia Brasileira
https://read.qxmd.com/read/36320368/keeping-our-balance-in-cerebellar-ataxia-the-contribution-of-neuroimaging-to-clinical-investigation
#20
EDITORIAL
Maria Clara Zanon Zotin
No abstract text is available yet for this article.
September 2022: Radiologia Brasileira
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