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R. Weise

Researcher at Heart and Diabetes Center North Rhine-Westphalia

Publications -  19
Citations -  691

R. Weise is an academic researcher from Heart and Diabetes Center North Rhine-Westphalia. The author has contributed to research in topics: Correction for attenuation & Coronary artery disease. The author has an hindex of 10, co-authored 19 publications receiving 668 citations. Previous affiliations of R. Weise include Ruhr University Bochum.

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Improvement in Coronary Flow Reserve Determined by Positron Emission Tomography After 6 Months of Cholesterol-Lowering Therapy in Patients With Early Stages of Coronary Atherosclerosis

TL;DR: It is suggested that cholesterol-lowering therapy with simvastatin may improve overall coronary vasodilator capacity assessed noninvasively by PET in patients with mild to moderate hypercholesterolemia and is considered a vasoprotective treatment for selected patients in very early stages of coronary atherosclerosis with the potential of preventing further disease progression.
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Improvement of coronary vasodilatation capacity through single LDL apheresis.

TL;DR: Probably for the first time, a 30% improvement in coronary vasodilatation capacity could be demonstrated quantitatively and non-invasively by PET after a single LDL-A within 24 h.
Journal Article

A Method to Remove Artifacts in Attenuation-Corrected Myocardial Perfusion SPECT Introduced by Misalignment Between Emission Scan and CT-Derived Attenuation Maps

TL;DR: Misalignment in the y-direction between SPECT and the attenuation map can lead to artifacts in the apical, septal, and anterior wall, which will appear as defects and there is evidence that mismatches along the other directions may have a similar effect.
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Iodine-124 PET dosimetry in differentiated thyroid cancer: recovery coefficient in 2D and 3D modes for PET(/CT) systems

TL;DR: Recovery correction is mandatory for 124I PET quantification, even for large structures to ensure accurate dosimetry, and thorough absolute recovery measurements must be individually established for the particular PET scanner and radionuclide to be used.
Journal Article

Attenuation Correction of Myocardial SPECT Perfusion Images with Low-Dose CT: Evaluation of the Method by Comparison with Perfusion PET

TL;DR: The x-ray-derived attenuation correction leads toSPECT images that represent myocardial perfusion more accurately than nonattenuation-corrected SPECT images, and the benefit of the method is seen primarily in the inferior wall.