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Items for "attenuation correction"

Attenuation correction of SPECT images based on separately performed CT: Effect on the measurement of regional uptake values

Aim: A new software approach uses separately acquired CT images for attenuation correction after retrospective fusion with the SPECT data...

Keywords: SPECT, Schwächungskorrektur, Bildfusion, Spiral-CT, Indium-111-Pentetreotide

01/2005 | Nuklearmedizin, Schattauer

FDG gamma camera PET equipped with one inch crystal and XCT. Assessment of myocardial viability

Metabolic imaging with 2-[fluorine-18]-fluoro-2-deoxy-D-glucose (FDG) is actually considered as the best method to detect and quantitatively assess myocardial tissue viability...

Keywords: Myokardiale Vitalität, 18F-FDG, Gammakamera-PET, Abschwächungskorrektur

01/2006 | Nuklearmedizin, Schattauer

Attenuation correction for myocardial perfusion imaging. A comparison between SPECT and PET imaging by polar map analysis

AIM: We investigated the impact of photon attenuation in myocardial perfusion imaging with SPECT and PET in patients with coronary artery disease...

Keywords: Myokardperfusion, SPECT, PET, Schwächungskorrektur, Polar- Map-Analyse

01/2006 | Nuklearmedizin, Schattauer

Impact of image fusion and attenuation correction by SPECT-CT on the scintigraphic detection of parathyroid adenomas

AIM: In addition to planar parathyroid scintigraphy, SPECT and image fusion with CT/MR improve adenoma detection in primary hyperparathyroidism (pHPT)...

Keywords: SPECT, Schwächungskorrektur, Nebenschilddrüsenszintigraphie, primärer Hyperparathyroidismus, Bildfusion

01/2007 | Nuklearmedizin, Schattauer

Effect of CT-based attenuation correction on uptake ratios in skeletal SPECT

The AIM of this study was to determine the clinical relevance of compensating SPECT data for patient specific attenuation by the use of CT data simultaneously acquired with SPECT/CT when analyzing the skeletal uptake of polyphosphonates (DPD)...

Keywords: SPECT/CT, Bildfusion, Hybridbildgebung, Schwächungskorrektur, Knochenszintigraphie