SRD - Serviço de Radiologia
Permanent URI for this community
Browse
Browsing SRD - Serviço de Radiologia by Issue Date
Now showing 1 - 10 of 46
Results Per Page
Sort Options
- Pericardial effusions in two boys with chronic granulomatous disease.Publication . MACEDO, F.; MCHUGH, K.; GOLDBLATT, D.Pediatr Radiol. 1999 Nov;29(11):820-2. Pericardial effusions in two boys with chronic granulomatous disease. Macedo F, McHugh K, Goldblatt D. SourceDepartment of Radiology, Hospital Geral de Santo Antonio, Porto, Portugal. Abstract Pericardial involvement in chronic granulomatous disease (CGD) is very rare. We present two children with known CGD and pericardial effusions in whom no microbial cause for the effusions was found. PMID: 10552060 [PubMed - indexed for MEDLINE]
- Diagnóstico pela Imagem - Quiz RadiológicoPublication . Sousa, L.
- ARTRO-RESSONÂNCIA MAGNÉTICA NA INSTABILIDADE GLENO-UMERAL: UMA REVISÃO DA TÉCNICA DE ABORDAGEM DIAGNÓSTICAPublication . França, M.; Fernandez, G.; Aguilar, J.; Tardáguila, G.; Velasco, M.; Vasconcelos, J.
- Imaging of pancreas transplantation and its complicationsPublication . França, M.; Certo, M.; Martins, L.; Varzim, P.; Teixeira, M.; Castro-Henriques, A.; Ribeiro, A.; Alves, F.Abstract Pancreas transplantation is an effective treatment for type 1 diabetes mellitus and is being increasingly performed worldwide. Early recognition of graft-related complications is fundamental for graft survival; thus, radiologists must be aware of the transplantation technique, pancreas-graft imaging and postoperative complications. We present normal pancreas-graft imaging appearances and the imaging features of postoperative complications.
- THE RED DOT SYSTEM: Emergency Diagnosis Impact and Digital Radiology Implementation - A reviewPublication . Coelho, J.; Rodrigues, P.Radiographer abnormality detection schemes (RADS) were introduced in the early 1980s to assist emergency departments. The development of PACS systems are affecting health professionals forcing them to evolve along, reviewing images on a computer monitor rather than on radiographic film. This article reviewed published articles that evaluated the impact of the use of a Red Dot System in patient outcome of emergency trauma patients and assessed the implementation of a Red Dot System in a Radiology Department with digital radiography and PACS. Few articles addressed the implementation issues and use of a Red Dot system in Computed Radiology. Radiographer skeletal red dot studies, had sensitivity and specificity of, respectively, 0.71 and 0.96 pre-training, and 0.81 and 0.95 post-training, compared with a reference standard. The use of radiographer abnormality detection schemes such as Red Dot and reporting has the potential to improve the diagnosis and outcome of emergency patients. The arrival of Information Technologies (IT) to healthcare and the introduction of Digital Radiography have limited the functionality of RADS due to incompatibility of new technology with the standard practice. New image technology solutions in Radiology should enhance the development and utilization of radiographer skills in RADS environments.
- Assessment of left ventricular diastolic function with cardiovascular MRI: what radiologists should knowPublication . Duarte, R.; Fernadez-Perez, G.; Bettencourt, N.; Sampaio, F.; Miranda, D.; França, M.; Portugal, P.Abstract Diastolic dysfunction is a common entity and the predominant cause of heart failure in 40%-50% of patients. Diagnosis of diastolic dysfunction is clinically relevant and is associated with a poor prognosis. The aim of this essay was to review the pathophysiology and different grades of diastolic dysfunction and to provide an overview on the role of cardiovascular magnetic resonance imaging in the assessment of diastolic function.
- Perforated duodenal diverticulum: Surgical treatment and literature reviewPublication . Costa Simões, V.; Santos, B.; Magalhães, S.; Faria, G.; Sousa Silva, D.; Davide, J.Duodenum is the second most frequent location for a diverticulum in the digestive tract. Complications are rare and perforation was only reported in less than 200 cases. PRESENTATION OF CASE: A 79-year-old female was admitted to Emergency Department with abdominal pain and vomiting for the last 24h. A CT scan was performed and moderated extra-luminal air was identified. During surgery a fourth portion perforated duodenal diverticulum was diagnosed and duodenal resection was performed. DISCUSSION: First reported in 1710, the incidence of duodenal diverticula can be as high as 22%. Nevertheless complications are extremely rare and include haemorrhage, inflammation, compression of surrounding organs, neoplastic progression, cholestasis and perforation. As perforations are often retroperitoneal, symptoms are nonspecific and rarely include peritoneal irritation, making clinical diagnose a challenge. CT scan will usually present extra-luminal retroperitoneal air and mesenteric fat stranding, providing clues for the diagnosis. Although non-operative treatment has been reported in selected patients, standard treatment is surgery and alternatives are diverse including diverticulectomy or duodenopancreatectomy. CONCLUSION: Perforated diverticula of the fourth portion of the duodenum are extremely rare and current evidence still supports surgery as the primary treatment modality.
- Correlação funcional e ecográfica no tratamento cirúrgico da coifa dos rotadores com seguimento superior a 5 anosPublication . Oliveira, V.; Silva, L.; Barreira, P.; Costa, L.; Araújo, J.; Ramos, J.; Vasconcelos, J.; Lourença, J.bjectivo: a reparação cirúrgica da coifa dos rotadores visa eliminar a dor e restaurar a função, com sucesso entre 5-90%. A dimensão da ruptura condiciona o resultado. Este estudo visa a eficácia do tratamento cirúrgico com o mínimo de 5 anos de seguimento e correlaciona resultado funcional com achados ecográficos. Material e Métodos: entre 2002 e 2007 o mesmo cirurgião realizou 166 suturas da coifa dos rotadores em 156 doentes. As ecografias pré e pós-operatórias foram sempre realizadas pelo mesmo radiologista. Retrospectivamente avaliou-se tipo de ruptura, cirurgia, sutura e material, complicações, dor (VAS), retorno laboral/atividades e inquirido o grau de satisfação. Completaram follow-up (FU) com avaliação funcional (Constant-Murley Score e UCLA Shoulder Score) e ecográfica 77 doentes, correspondendo a 87 rupturas. Resultados: A idade média foi 55,6 anos (22-77) com FU de 7,4 anos (5-11). Verificaram-se 145 (87,3%) rupturas completas sendo 14 (9,7%) maciças e 61 (42,1%) grandes. Realizaram-se 122 (73,5%) suturas artroscópicas, sendo 44 (26,5%) por mini-open. A avaliação funcional foi 72 (31-100) Constant Score e 29 (19-35) UCLA Score. O VAS foi 2,89 (0-8) com 29 (43,3%) doentes assintomáticos. Ocorreram 4 complicações (2,4%). Ecograficamente, verificou-se 29/87 (33,3%) re-rupturas, 32,3% artroscópicas e 40,1% abertas, lembrando que a sutura aberta foi usada em rupturas maiores. Retomaram atividades 95,5% dos doentes. Registou-se 100% de satisfação relativamente ao pré-operatório. Conclusão: este estudo reforça o impacto do tratamento cirúrgico na dor e verifica eficácia consistente se houver seleção criteriosa. A re-ruptura avaliada ecograficamente nem sempre se correlaciona com função, intervindo outros factores.
- 17-Week Delay Surgery after Chemoradiation in Rectal Cancer with Complete Pathological ResponsePublication . Santos, M.; Gomes, M.; Moreno, F.; Rocha, A.; Lopes, C.Neoadjuvant chemoradiation (CRT) followed by curative surgery still remains the standard of care for locally advanced rectal cancer (LARC). The main purpose of this multimodal treatment is to achieve a complete pathological tumor response (ypCR), with better survival. The surgery delay after CRT completion seems to increase tumor response and ypCR rate. Usually, time intervals range from 8 to 12 weeks, but the maximum tumor regression may not be seen in rectal adenocarcinomas until several months after CRT. About this issue, we report a case of a 52-year-old man with LARC treated with neoadjuvant CRT who developed, one month after RT completion, an acute myocardial infarction. The need to increase the interval between CRT and surgery for 17 weeks allowed a curative surgery without morbidity and an unexpected complete tumor response in the resected specimen (given the parameters presented in pelvic magnetic resonance imaging (MRI) performed 11 weeks after radiotherapy completion).
- A Prediction Rule to Stratify Mortality Risk of Patients with Pulmonary TuberculosisPublication . Bastos, H.; Osório, N.; Castro, A.; Ramos, A.; Carvalho, T.; Meira, L.; Araújo, D.; Almeida, L.; Boaventura, R.; Fragata, P.; Chaves, C.; Costa, P.; Portela, M.; Ferreira, I.; Magalhães, S.; Rodrigues, F.; Sarmento-Castro, R.; Duarte, R.; Guimarães, J.; Saraiva, M.Tuberculosis imposes high human and economic tolls, including in Europe. This study was conducted to develop a severity assessment tool for stratifying mortality risk in pulmonary tuberculosis (PTB) patients. A derivation cohort of 681 PTB cases was retrospectively reviewed to generate a model based on multiple logistic regression analysis of prognostic variables with 6-month mortality as the outcome measure. A clinical scoring system was developed and tested against a validation cohort of 103 patients. Five risk features were selected for the prediction model: hypoxemic respiratory failure (OR 4.7, 95% CI 2.8-7.9), age ≥50 years (OR 2.9, 95% CI 1.7-4.8), bilateral lung involvement (OR 2.5, 95% CI 1.4-4.4), ≥1 significant comorbidity-HIV infection, diabetes mellitus, liver failure or cirrhosis, congestive heart failure and chronic respiratory disease-(OR 2.3, 95% CI 1.3-3.8), and hemoglobin <12 g/dL (OR 1.8, 95% CI 1.1-3.1). A tuberculosis risk assessment tool (TReAT) was developed, stratifying patients with low (score ≤2), moderate (score 3-5) and high (score ≥6) mortality risk. The mortality associated with each group was 2.9%, 22.9% and 53.9%, respectively. The model performed equally well in the validation cohort. We provide a new, easy-to-use clinical scoring system to identify PTB patients with high-mortality risk in settings with good healthcare access, helping clinicians to decide which patients are in need of closer medical care during treatment.