Valérie-Anne Nicolas

Learn More
BACKGROUND The treatment of thoracic aortic dissection is guided by prognostic and anatomical information. Proximal dissection requires surgery, but the appropriate treatment of distal thoracic aortic dissection has not been determined, because surgery has failed to improve the prognosis. METHODS We prospectively evaluated the safety and efficacy of(More)
BACKGROUND Aortic dissection requires prompt and reliable diagnosis to reduce the high mortality. The purpose of this study was to assess the reliability of both ECG-triggered magnetic resonance imaging (MRI) and transesophageal two-dimensional echocardiography combined with color-coded Doppler flow imaging (TEE) for the diagnosis of thoracic aortic(More)
OBJECTIVE The goal of this study was to prospectively compare the accuracy of transthoracic and transesophageal B-mode and Doppler echocardiography with helical CT for detecting acute pulmonary embolism. SUBJECTS AND METHODS Thirty-five consecutive patients underwent transthoracic and transesophageal echocardiography and contrast-enhanced helical CT.(More)
In 16 Göttingen minipigs 31 soft-tissue haematomas of different location were produced by reinjection of freshly drawn arterial and venous blood. Immediately after the injection, MRI of the haematomas was performed and continued for 2-3 h. The MRI appearance of the haematomas depended on the site of the injection. Intramuscular haematomas demonstrated on(More)
The role of MRT in the prebiopsy diagnosis of muscular and vascular inflammatory conditions was evaluated prospectively and an optimal method of examination was investigated. 92 patients with a suspected diagnosis of myositis (60 cases) or vasculitis (32 cases) were examined, in each case two extremities were studied using transverse T1 and T2 weighted SE(More)
In the context of maintenance testing and diagnosis of faulty boards, a functional FSM (Finite State Machine)based model for mixed-signal board has been introduced. The board is broken down into interconnected functional blocks. Each block has an associated functional model which describes its behavior and a test model which specifies how the block can be(More)
PURPOSE Postoperative CT's in living liver donors were analysed retrospectively to examine whether atrophies of segment IV occur after procurement depending on arterial vascular supply. PATIENTS AND METHODS Postoperative CT's from 19 living donors were retrospectively analysed. DSA of the upper abdomen had been performed on all donors prior to donation.(More)
BACKGROUND Percutaneous ethanol injection (PEI) and cryosurgery are increasingly used for the treatment of liver malignancies. To create a safety margin and to destroy completely diffusely growing tumors, the precise destruction of healthy liver tissue is necessary. Little is known about the effects of operating on this type of tissue. This study evaluated(More)
PURPOSE To determine the value of spiral CT during arterial portography (SCTAP) in detecting and localising focal liver lesions we compared the SCTAP findings to those gained by conventional CT during arterial portography (CTAP). MATERIAL AND METHODS We evaluated a total of CT scans of 128 patients with 162 malignant lesions of the liver. 45 patients(More)