Browsing by Author "Donato, P"
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- Adenosine-Stress MR ImagingPublication . Donato, P
- Amiodarone pulmonary toxicityPublication . Rodrigues, H; Belo-Oliveira, P; Costa, JF; Donato, POur patient who was on long term amiodarone treatment presented with a 10 day history of cough and dyspnea. Chest X-ray showed multiple pulmonary infiltrates. HRCT depicted patchy areas of ground glass attenuation and areas of consolidation, with a peripheral and peribronchovascular distribution, associated with dilated bronchi. The amiodarone was discontinued and the patient treated with corticosteroids.
- Angio-TC das CoronáriasPublication . Donato, P
- Caracterização por RM cardíaca e técnica de realce tardio de um pseudoaneurisma do ventrículo esquerdoPublication . Andrade, LC; Donato, P; Ferreira, MJ; Caseiro-Alves, FLeft ventricular pseudoaneurysm is a rare complication of myocardial infarction. Differentiation between true and false aneurysms, although difficult, is crucial, because of the different treatment options they entail. We present a rare case of a giant pseudoaneurysm of the left ventricle related with a previous myocardial infarction. The present case highlights the pivotal role of magnetic resonance imaging for differential diagnosis between these entities.
- Cardiac magnetic resonance stress perfusion: A single-center studyPublication . Donato, P; Ferreira, MJ; Silva, V; Pinto, A; Caseiro-Alves, F; Providência, LAINTRODUCTION AND OBJECTIVES: Myocardial ischemia can be assessed with cardiac magnetic resonance perfusion imaging (MRPI). This study aimed to analyze the clinical utility of MRPI in the diagnosis of significant coronary artery disease. METHODS: Fifty-five patients were examined with a 1.5 T MR scanner (Siemens Symphony), with a first pass of 0.10 mmol/kg gadolinium chelate, at rest and during adenosine vasodilatation (140μg/kg/min for 4min) using an inversion recovery steady-state free precession sequence. The results were compared with coronary angiography and with SPECT myocardial perfusion images. Agreement for qualitative diagnosis was measured by the kappa coefficient, taking statistical significance as 95%. Minimum clinical follow-up was 12 months. RESULTS: In 19 patients (34.5%) MRPI was negative for myocardial ischemia and necrosis, in 17 (30.9%) it was negative for ischemia but positive for necrosis, in 7 (12.7%) only ischemia was present and in 12 (21.8%) the ischemic area was larger than the necrotic area. The correlation between MRPI and coronary angiography for ischemia detection by coronary artery territory was very good: left anterior descending and right coronary - k=0.8571 (0.59-1), circumflex - k=0.8108 (0.59-1). By contrast, there was no correlation in terms of myocardial ischemia detection between MRPI and SPECT. CONCLUSIONS: MRPI is able to diagnose significant coronary disease in a high risk population, by detection of myocardial ischemia.
- Cardiac tumorsPublication . Santiago, I; Portilha, MA; Gonçalves, B; Rodrigues, H; Donato, P; Caseiro-Alves, F
- Cardiovascular magnetic resonance imaging assessment of diastolic dysfunction in a population without heart disease: a gender-based studyPublication . Graça, B; Ferreira, MJ; Donato, P; Castelo-Branco, M; Caseiro-Alves, FOBJECTIVES: Asymptomatic left ventricular (LV) diastolic dysfunction is increasingly recognised as an important diagnosis. Our goal was to study the prevalence and gender differences in subclinical LV diastolic dysfunction, using cardiovascular magnetic resonance imaging (CMR) at 3 T. METHODS: We prospectively studied 48 volunteers (19 male and 29 female, mean age 49 ± 7 years) with no evidence of cardiovascular disease. We used CMR to measure left atrium (LA) and LV volumes, LV peak filling rate and transmitral flow. RESULTS: The overall prevalence of LV diastolic dysfunction in our cohort varied between 20 % (based on evaluation of LV filing profiles) and 24 % (based on the evaluation of the transmitral flow). The prevalence of diastolic dysfunction was higher in men than in women, independently of the criteria used (P between 0.004 and 0.022). Indexed LV end-diastolic volume, indexed LV stroke volume, indexed LV mass, indexed LA minimum volume and indexed LA maximum volume were significantly greater in men than in women (P < 0.05). All the subjects had LV ejection fractions within the normal range. CONCLUSIONS: It is clinically feasible to study diastolic flow and LV filling with CMR. CMR detected diastolic dysfunction in asymptomatic men and women. KEY POINTS: • CMR imaging offers new possibilities in assessing left ventricular diastolic function. • The prevalence of diastolic dysfunction is higher in men than in women. • The prevalence of some diastolic dysfunction in a normal population is 24 %.
- Collteral loop approach from left to right liver lobe: Endovascular recanalization of a hepatic vein in Budd-Chiari syndromePublication . Pereira da Silva, F; Donato, P; Caseiro-Alves, FWe report the approach to a 29 year old patient presenting with the diagnosis of a Budd-Chiari Syndrome, with clinical deterioration after initial anticoagulation treatment. The patient was proposed to endovascular treatment. Through intra-hepatic shunting seen at angiography, and from a left to right liver lobe, a guide-wire was passed retrogadely and allowed sufficient support to perform hepatic vein angioplasty and stenting. The patient responded favourably and liver transplant was avoided.
- Complexo de Carney a propósito de um caso clínicoPublication . Teixeira, R; Lourenço, C; Coelho, L; Vieira, H; Ramos, D; Castro, G; Monteiro, P; Donato, P; Ferreira, MJ; Providência, LA