Peter A. Rinck

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The relaxivities r1 and r2 of magnetic resonance contrast agents and the T1 relaxation time values of tissues are strongly field dependent. We present quantitative data and simulations of different gadolinium-based extracellular fluid contrast agents and the modulation of their contrast enhancement by the magnetic field to be able to answer the following(More)
UNLABELLED The relatively low specificity of dynamic contrast-enhanced T1-weighted magnetic resonance imaging (MR) imaging of breast cancer has lead several groups to investigate different approaches to data acquisition, one of them being the use of rapid T2*-weighted imaging. Analyses of such data are difficult due to susceptibility artifacts and breathing(More)
A computer program to create magnetic resonance images simulating the main features of a magnetic resonance imaging (MR) machine was developed on a personal computer. The simulated MR images are calculated using the relevant equations describing a chosen pulse sequence on the basis of proton density,T 1 andT 2 images acquired from whole-body MR equipment.(More)
To assess the relationship between baseline left ventricle function, functional reserve and resting myocardial perfusion in patients with acute myocardial infarction (AMI). After AMI the presence of dysfunctioning but viable myocardium plays a determinant role in clinical outcome. Regional ventricular function was evaluated by echocardiography both in(More)
The present paper reports our own experience with MR perfusion imaging and gives an overview of contrast-enhanced pulmonary MR perfusion imaging, MR angiography, and ventilation MR imaging using hyperpolarized gases or oxygen as contrast agent. These methods are discussed within the context of their possible role in the diagnosis of pulmonary diseases,(More)
The value 79.2 would then be added to the output array at location x = 10, y = 20, with the other values added to the corresponding surrounding pixels. 4) If multiple slices are being rotated to the same angle, the relative contributions of each origin pixel to the destination image will be independent of the count distribution in the origin image. This(More)
This subjective and polemic review of radiology reports and analyzes the status of the field today and discusses some of the positive aspects and some of the problems in routine imaging and in research, in both an individual/academic and an academic/commercial context. Topics approached include the position of radiology in medicine as a whole today; turf(More)