Browsing by Author "Santiago, I"
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- Cardiac tumorsPublication . Santiago, I; Portilha, MA; Gonçalves, B; Rodrigues, H; Donato, P; Caseiro-Alves, F
- Congenital cystic lesions of the biliary treePublication . Santiago, I; Loureiro, R; Curvo-Semedo, L; Marques, C; Tardáguila, F; Matos, C; Caseiro-Alves, FOBJECTIVE: The purpose of this essay is to illustrate the imaging findings of congenital cystic lesions of the biliary tract. CONCLUSION: Congenital cystic lesions of the biliary tract include ductal plate malformations and choledochal cysts and can be recognized with characteristic imaging findings and basic knowledge of the embryologic development of the biliary tree.
- Giant aneurysm of the left renal artery: Case 8067Publication . Santiago, I; Ruivo, C; Rodrigues, H; Gil-Agostinho, A
- Multiple penetrating atherosclerotic ulcers: Case 8036Publication . Santiago, I; Seco, M; Curvo-Semedo, L
- Occlusion or Near-Occlusion of the ICA?Publication . Santiago, I; Canelas, A; Pinto, E
- One-shot diagnostic and prognostic assessment in intermediate- to high-risk acute pulmonary embolism: The role of multidetector computed tomographyPublication . Baptista, R; Santiago, I; Jorge, E; Teixeira, R; Mendes, P; Curvo-Semedo, L; Castro, G; Monteiro, P; Caseiro-Alves, F; Providência, LAINTRODUCTION: Contrast-enhanced multidetector computed tomography (MDCT) is useful for the diagnosis of pulmonary embolism (PE). However, current guidelines do not support its use for risk assessment in acute PE patients. OBJECTIVES: We compared the prognostic impact of MDCT-derived indices regarding medium-term mortality in a population of intermediate- to high-risk PE patients, mostly treated by thrombolysis. METHODS: Thirty-nine consecutive patients admitted to an intensive care unit with acute PE were studied. All patients had a pulmonary MDCT on admission to the emergency room as part of the diagnostic algorithm. We assessed the following MDCT variables: right ventricular/left ventricular diameter (RV/LV) ratio, arterial obstruction index, pulmonary artery-to-aorta diameter ratio and azygos vein diameter. A 33-month follow-up was performed. RESULTS: Mean age was 59.1±19.6 years, with 80% of patients receiving thrombolysis. Follow-up all-cause mortality was 12.8%. Of the MDCT-derived variables, only the RV/LV ratio had significant predictive value, being higher in patients who suffered the endpoint (1.6±0.5 vs. 1.9±0.4, p=0.046). Patients with an RV/LV ratio ≥1.8 had 11-fold higher medium-term all-cause mortality (3.8% vs. 38.8%, p<0.001). Regarding this endpoint, the c-statistic was 0.78 (95% CI, 0.60-0.96) for RV/LV ratio and calibration was good (goodness-of-fit p=0.594). No other radiological index was predictive of mortality. CONCLUSIONS: MDCT gives the possibility, in a single imaging procedure, of diagnosing and assessing the prognosis of patients with intermediate- to high-risk PE. Although further studies are needed, the simple-to-calculate RV/LV ratio has good discrimination and calibration for predicting poorer outcomes in patients with acute PE.
- Oral cavity cystic lesion: Case 8051Publication . Santiago, I; Rodrigues, H
- Renal allograft complicated with renal artery stenosis: Case 8038Publication . Santiago, I; Canelas, A; Pinto, AP
- Retropharyngeal nodular fasciitis: Case 9087Publication . Santiago, I; Cavalheiro, F; Noruégas, MJ; Sanches, MC