Radiologia最新文献

{"title":"Undergraduate radiodiagnostic professors","authors":"J.M. Carreira Villamor ,&nbsp;M.A. Zabalza Beraza","doi":"10.1016/j.rxeng.2023.07.004","DOIUrl":"10.1016/j.rxeng.2023.07.004","url":null,"abstract":"<div><p>The international literature on university teaching, has insisted on the need to combine a double component in the professional profile of teachers: <em>content knowledge</em> and <em>pedagogical content knowledge</em>.</p><p>Regarding the <em>content</em><span>, the area of knowledge of radiology<span><span> and physical medicine is made up of different medical specialties, among which are radiodiagnosis, nuclear medicine, </span>radiation oncology, physical medicine and rehabilitation. On the other hand, the pedagogical content knowledge is framed by framework that the Bologna Declaration (1999).</span></span></p><p>Focusing on radiodiagnosis, the ideal candidates must be professionals in this medical specialty, vocational teachers and people who find in the undergraduate teaching process an opportunity to transmit their knowledge, experiences and values in an entertaining and understandable way for students who are incorporated into medical knowledge.</p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"66 1","pages":"Pages 94-101"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139536745","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":"Inflammatory lesions of the brainstem: Keys for the diagnosis by MRI","authors":"C. García de Andoin Sojo,&nbsp;J.J. Gómez Muga,&nbsp;I. Aza Martínez,&nbsp;L. Antón Méndez,&nbsp;R. Fornell Pérez","doi":"10.1016/j.rxeng.2023.01.010","DOIUrl":"10.1016/j.rxeng.2023.01.010","url":null,"abstract":"<div><h3>Objective</h3><p>To describe the magnetic resonance imaging (MRI) findings for the most common inflammatory and immune-mediated diseases that involve the brainstem.</p></div><div><h3>Conclusion</h3><p>Inflammatory lesions involving the brainstem are associated with a wide range of autoimmune, infectious, and paraneoplastic syndromes<span>, making the differential diagnosis complex. Being familiar with these entities, their clinical characteristics, and their manifestations on MRI, especially the number of lesions, their shape and extension, and their appearance in different sequences, is useful for orienting the radiological diagnosis.</span></p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"66 1","pages":"Pages 32-46"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139636859","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":"FLAIR hyperintensity in the subarachnoid space: Main differentials","authors":"J. Miranda Bautista,&nbsp;I. Garrido Morro,&nbsp;P. Fernández García,&nbsp;I. Herrera Herrera","doi":"10.1016/j.rxeng.2022.01.003","DOIUrl":"10.1016/j.rxeng.2022.01.003","url":null,"abstract":"<div><p>The fluid-attenuated inversion recovery (FLAIR) sequence forms part of the vast majority of current diagnostic protocols for brain MRI. This sequence enables the suppression of the signal from cerebrospinal fluid<span>, facilitating the detection of disease involving the subarachnoid space. The causes of hyperintensity in the arachnoid space in this sequence can be divided into two main categories: hyperintensity due to disease and hyperintensity due to artifacts. Hyperintensity due to tumors, inflammation, vascular disease, or hypercellularity of the cerebrospinal fluid or hematic contents is well known. However, numerous other non-pathological conditions, mainly due to artifacts, that are also associated with this finding are a potential source of diagnostic errors.</span></p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"66 1","pages":"Pages 78-89"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139538380","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 intravoxel incoherent motion (IVIM) imaging in response assessment of hepatocellular carcinoma after transarterial chemoembolization (TACE) – A prospective study","authors":"M. Reddy Bursapalle,&nbsp;J. Valakkadaa,&nbsp;A. Ayappan","doi":"10.1016/j.rxeng.2023.03.003","DOIUrl":"10.1016/j.rxeng.2023.03.003","url":null,"abstract":"<div><h3>Introduction</h3><p>Response evaluation of hepatocellular carcinoma (HCC) currently is based on arterial phase enhancement which doesn’t take into microstructural changes in the tumor after trans-arterial chemoembolization (TACE).</p></div><div><h3>Aim</h3><p>This prospective study was conducted to assess the feasibility and efficacy of intravascular incoherent motion imaging (IVIM) in response evaluation of HCC after TACE.</p><p>39 cirrhotic patients with 48 HCC underwent MR imaging 1 week within and 6weeks after TACE. IVIM parameters like Dslow (true diffusion), Dfast (pseudodiffusion), perfusion fraction and ADC were measured prior to and postTACE. The pre and post TACE values in LR-TR (LIRADS – treatment response) nonviable and viable lesions were compared using paired t-tests. ROC curve analysis was done to calculate sensitivity and specificity and propose cut-off values.</p></div><div><h3>Result</h3><p>Non-viable lesions showed a significant increase in Dslow (1.208 ± 0.581 vs 1.560 ± 0.494, <em>P</em>-value −.0207) and ADC (1.37 ± 0.53 vs 1.65 ± 0.4287, <em>P</em> value .016) after TACE. There was also significant decrease in Dfast (33.7 ± 10.4 vs 23.75 ± 12.13, <em>P</em> value .0005) and f (19.92 ± 10.54 vs 12.9 ± 10.41, <em>P</em> value .012) values after TACE in non-viable lesions compared to viable lesions. The change in true diffusion had the highest AUC (0.741) among IVIM parameters with greater than 0.075 increase between preTACE and postTACE values having a sensitivity and specificity of 81.8% and 60% respectively for complete response.</p></div><div><h3>Conclusion</h3><p>IVIM imaging is feasible to assess the response in HCC after TACE. True diffusion is more sensitive and specific than apparent diffusion in evaluating the response.</p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"66 1","pages":"Pages 23-31"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123322969","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":"Operational characteristics of ultrasound in the diagnosis of Sjögren’s syndrome","authors":"D. Guavita-Navarro ,&nbsp;C. Ibáñez ,&nbsp;J. Cajamarca-Barón ,&nbsp;D.E. Avendaño Rodríguez ,&nbsp;J.L. Torres-Castiblanco ,&nbsp;A.B. Villamizar Barahona ,&nbsp;H.D. Burbano Burbano ,&nbsp;A. Escobar Trujillo ,&nbsp;J.F. Polo ,&nbsp;A. Rojas-Villarraga","doi":"10.1016/j.rxeng.2022.06.006","DOIUrl":"10.1016/j.rxeng.2022.06.006","url":null,"abstract":"<div><h3>Background and objective</h3><p>To determine the operational characteristics of salivary gland ultrasound (SGU) in the diagnosis of Sjögren’s syndrome (SS) in a population of colombian patients with dry symptoms.</p></div><div><h3>Materials and methods</h3><p><span>Study of diagnostic tests in patients with dry symptoms who consecutively attended the </span>rheumatology<span> consultation (2018–2020). Sociodemographic and clinical data were obtained through a survey, paraclinical and ophthalmological tests, minor salivary gland biopsy<span>, unstimulated salivary flow and SGU (score 0–6 based on De Vita) were done. Sensitivity, specificity, positive (PPV) and negative (NPV) predictive values (Stata 15®) were calculated. The receiver operating characteristics (ROC) curve was developed.</span></span></p></div><div><h3>Results</h3><p>102 patients were included (34 SS and 68 non-SS), mean age 55.69 (±11.93) years, 94% women. Positive ultrasound (score of 2 or more) was more frequent in the SS group, (70.6% vs. 22.1%, P<!--> <!-->&lt;<!--> <!-->0.0001). The sensitivity was the same for grade 2 and 3 (70.59%), with a higher specificity (89.71%) for grade 3 (PPV 77.42% NPV 85.92). The ROC curve from the sum of the glands by means of ultrasound was better than those of the independent glands. The ROC curve of the ultrasound presented a greater area under the curve (0.72 [0.61−0.82]) than that of the histological analysis (focus score) (0.68 [0.59−0.78]), P<!--> <!-->=<!--> <!-->0.0252.</p></div><div><h3>Conclusion</h3><p>Salivary gland ultrasound is a useful and reliable method for the classification of SS. Its use could be considered in the future within the SS classification criteria.</p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"66 1","pages":"Pages 13-22"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139537844","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":"Social networks in radiology: Toward a new paradigm in medical education?","authors":"J.L. del Cura Rodríguez","doi":"10.1016/j.rxeng.2023.01.011","DOIUrl":"10.1016/j.rxeng.2023.01.011","url":null,"abstract":"<div><p>The universally accepted system for the transmission of scientific knowledge in the field of medicine has long been grounded in scientific publications. Social networks can be a useful alternative or complementary method of transmitting this knowledge.</p><p>Social networks (e.g., Twitter, Instagram, Facebook, LinkedIn, YouTube, and TikTok) generate educational contents that enable quality training, despite their informality. Each of these networks has strengths and weaknesses that users should know about.</p><p>These platforms are free and allow for real-time discussion. They make it easy to incorporate content and to contact experts or access sources of knowledge directly. Aware of their influence, publishers have incorporated metrics to measure the impact of their articles in social networks (Altmetrics).</p><p>These networks should be incorporated into departmental training programs immediately. Nevertheless, navigating through social networks is complex, and the hashtag-based system of searching is inefficient, limiting their use in education.</p><p>Despite the informality of the knowledge generated on social networks, the importance of these networks as a source of knowledge is growing. Radiology departments must design a strategy for using social networks for education rather than for propaganda, creating well-organized focal groups that search for contents through systematic, filtered review of information, digital repositories, and review sessions and for sharing this knowledge both inside and outside the department. Departments must also implement a strategy for communicating through these networks.</p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"66 1","pages":"Pages 70-77"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139631513","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":"Implementing a coronary CT angiography protocol based on the body mass index: Radiation dose reduction, image quality, and diagnostic performance","authors":"H. Cuellar-Calabria ,&nbsp;G. Burcet ,&nbsp;M.S. Juarez-Garcia ,&nbsp;J.L. Reyes-Juárez ,&nbsp;M.N. Pizzi ,&nbsp;S. Aguadé-Bruix ,&nbsp;A. Roque","doi":"10.1016/j.rxeng.2022.01.004","DOIUrl":"10.1016/j.rxeng.2022.01.004","url":null,"abstract":"<div><h3>Objectives</h3><p>To evaluate the relation between the coronary calcium score and the posterior choice of kilovoltage according to radiologists’ criteria in a standard coronary CT angiography<span> protocol to rule out coronary disease.</span></p><p><span>To quantify the reduction in ionizing radiation after linking kilovoltage to patients’ </span>body mass index in a low-dose protocol with iterative model reconstruction.</p><p>To evaluate the image quality and diagnostic performance of the low-dose protocol.</p></div><div><h3>Material and methods</h3><p><span>We compared anthropometric characteristics, calcium score, kilovoltage levels, size-specific dose estimates (SSDE), and the dose-length product (DLP) between a group of 50 patients who were prospectively recruited to undergo coronary CT angiography with a low-dose protocol and a historical group of 50 patients who underwent coronary CT angiography with the standard protocol. We correlated these parameters, the number of coronary segments that could not be evaluated with and without temporal padding, the attenuation, and the signal-to-noise ratio in the </span>ascending aorta in the low-dose protocol with excellent imaging quality according to a semiquantitative scale. To calculate the diagnostic performance per patient, we used 24-month clinical follow-up including all tests as the gold standard.</p></div><div><h3>Results</h3><p>In the standard protocol, the presence of coronary calcium correlated with the selection of high kilovoltage (p = 0.02); this correlation was not found in the low-dose protocol (p = 0.47). Median values of SSDE and DLP were significantly (p &lt; 0.001) lower and less dispersed in the low-dose protocol [9.22 mGy (IQR 7.84–12.1 mGy) vs. 26.5 mGy (IQR 21.3–36.3 mGy) in the standard protocol] and [97 mGy cm (IQR 78–134 mGy cm) vs. 253 mGy cm (IQR 216–404 mGy cm) in the standard protocol], respectively.</p><p>The overall quality of the images obtained with the low-dose protocol was considered good or excellent in 96% of the studies. The parameters associated with image quality in a multivariable model (C statistic = 0.792) were heart rate (estimated coefficient, −0,12 [95% confidence interval: −0.2, −0.04]; p &lt; 0.01) and the SSDE (estimated coefficient, −0,26 [95% confidence interval: −0.51, −0.01]; p &lt; 0.05).</p><p>The CAD-RADS modifier for a not fully evaluable or diagnostic study was used on two occasions (4%); the final measures for the diagnosis of coronary disease were sensitivity 100%, specificity 94%, and efficacy 94%.</p></div><div><h3>Conclusions</h3><p>In the standard protocol, the radiologist selects higher kilovoltage for CT angiography studies for patients whose previous calcium score indicates the presence of coronary calcium. In the low-dose protocol, linking kilovoltage with body mass index enables the dose of radiation to be reduced by 65% while obtaining excellent or good image quality in 96% of studies and excellent diagnostic performan","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"66 1","pages":"Pages 2-12"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139639454","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":"Usefulness of resuscitative endovascular balloon occlusion of the aorta (REBOA) in controlling puerperal bleeding in patients with abnormal placental implantation","authors":"L. Fernández Rodríguez,&nbsp;J. Novo Torres,&nbsp;M.D. Ponce Dorrego,&nbsp;R. Rodríguez Díaz,&nbsp;M.L. Collado Torres,&nbsp;G. Garzón Moll,&nbsp;T. Hernández Cabrero","doi":"10.1016/j.rxeng.2022.05.005","DOIUrl":"https://doi.org/10.1016/j.rxeng.2022.05.005","url":null,"abstract":"<div><h3>Background and aims</h3><p>Abnormalities of placental implantation, which make up the spectrum of placenta accreta<span><span>, are associated with high maternal morbidity<span><span> and mortality due to massive bleeding during delivery. Placing aortic occlusion balloons helps control the bleeding, facilitating surgical intervention. A new device, resuscitative endovascular </span>balloon occlusion of the aorta (REBOA), minimizes the risks and complications associated with the placement of traditional aortic balloons and is also efficacious in controlling bleeding. The aim of this study is to evaluate the usefulness, efficacy, and safety of REBOA in </span></span>puerperal bleeding due to abnormalities of placental implantation.</span></p></div><div><h3>Material and methods</h3><p><span>Between November 2019 and November 2021, our interventional radiology<span> team placed six REBOA devices in six women scheduled for cesarean section due to </span></span>placenta accrete.</p></div><div><h3>Results</h3><p>Mean blood loss during cesarean section after REBOA (3507.5 mL) was similar to the amounts reported for other aortic balloons. The mean number of units of packed red blood cells required for transfusion was 3.5. Using REBOA provided the surgical team with adequate conditions to perform the surgery. There were no complications derived from REBOA, and the mean ICU stay was &lt;2 days.</p></div><div><h3>Conclusion</h3><p>The technical characteristics of the REBOA device make it a safe and useful alternative for controlling massive bleeding in patients with placenta accreta.</p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"65 6","pages":"Pages 502-508"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138474603","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":"Performance in prognostic capacity and efficiency of the Thoracic Care Suite GE AI tool applied to chest radiography of patients with COVID-19 pneumonia","authors":"J.M. Plasencia-Martínez ,&nbsp;R. Pérez-Costa ,&nbsp;M. Ballesta-Ruiz ,&nbsp;J.M. García-Santos","doi":"10.1016/j.rxeng.2022.11.007","DOIUrl":"10.1016/j.rxeng.2022.11.007","url":null,"abstract":"<div><h3>Objective</h3><p>Rapid progression of COVID-19 pneumonia may put patients at risk of requiring ventilatory support, such as non-invasive mechanical ventilation or endotracheal intubation<span>. Implementing tools that detect COVID-19 pneumonia can improve the patient’s healthcare. We aim to evaluate the efficacy and efficiency of the artificial intelligence (AI) tool GE Healthcare’s Thoracic Care Suite (featuring Lunit INSIGHT CXR, TCS) to predict the ventilatory support need based on pneumonic progression of COVID-19 on consecutive chest X-rays.</span></p></div><div><h3>Methods</h3><p>Outpatients with confirmed SARS-CoV-2 infection, with chest X-ray (CXR) findings probable or indeterminate for COVID-19 pneumonia, who required a second CXR due to unfavorableclinical course, were collected. The number of affected lung fields for the two CXRs was assessed using the AI tool.</p></div><div><h3>Results</h3><p>One hundred fourteen patients (57.4<!--> <!-->±<!--> <!-->14.2 years, 65−57%-men) were retrospectively collected. Fifteen (13.2%) required ventilatory support. Progression of pneumonic extension ≥0.5 lung fields per day compared to pneumonia onset, detected using the TCS tool, increased the risk of requiring ventilatory support by 4-fold. Analyzing the AI output required 26<!--> <!-->s of radiological time.</p></div><div><h3>Conclusions</h3><p>Applying the AI tool, Thoracic Care Suite, to CXR of patients with COVID-19 pneumonia allows us to anticipate ventilatory support requirements requiring less than half a minute.</p></div>","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"65 6","pages":"Pages 509-518"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135664889","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":"Back to normal: Burnout syndrome in radiology professionals","authors":"A. Medina Gamero","doi":"10.1016/j.rxeng.2023.04.004","DOIUrl":"10.1016/j.rxeng.2023.04.004","url":null,"abstract":"","PeriodicalId":94185,"journal":{"name":"Radiologia","volume":"65 6","pages":"Page 577"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135664887","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}