'Beam hardening' diaporamas de présentation

Nobel Prize for Medicine 2003

Clinical Brain Imaging Stephen Salloway, M.D., M.S. Department of Clinical Neurosciences and Psychiatry Brown Medical School. Nobel Prize for Medicine 2003. Sir Peter Mansfield. Paul C. Lauterbur. Objectives. Learn about the use of CT, MRI and SPECT scanning in clinical practice

872 views • 72 slides

Objectives

Clinical Brain Imaging Stephen Salloway, M.D., M.S. Department of Clinical Neurosciences and Psychiatry Brown Medical School. Objectives. Learn about the use of CT, MRI and SPECT scanning in clinical practice

835 views • 71 slides

INTRODUCTION TO IMAGING PHYSICS CAPABILITIES AND LIMITATIONS

INTRODUCTION TO IMAGING PHYSICS CAPABILITIES AND LIMITATIONS. DAVID B. CHALPIN, MD. ASSISTANT PROFESSOR OF CLINICAL RADIOLOGY LSU HEALTH SCIENCES CENTER NEW ORLEANS, LA. GOALS. TO BECOME FAMILIAR WITH THE BASICS OF IMAGE GENERATION USING X-rays, CT, AND MRI

938 views • 68 slides

ARTIFACTS IN COMPUTED TOMOGRAPHY

ARTIFACTS IN COMPUTED TOMOGRAPHY. ARTIFACT. Any discrepancy between the CT numbers represented in the image and the expected CT number based on the linear attenuation coefficient. APPEARANCE OF ARTIFACTS. STREAKS SHADING BANDS RINGS. SOURCES OF ARTIFACTS. PATIENT

4.16k views • 55 slides

Recognizing and Minimizing Artifacts at CT, MRI, US, and Molecular Imaging

1.16k views • 52 slides

Correction and Preprocessing Methods

Correction and Preprocessing Methods. Veselin Dikov Moscow-Bavarian Joint Advanced Student School 19-29. March 2006 Moscow, Russia. Outline. Beam hardening Scattered radiation Ring artefacts References. Beam hardening. Monochromatic vs. Polychromatic X-ray source

397 views • 32 slides

Correction and Preprocessing Methods

Correction and Preprocessing Methods. Veselin Dikov Moscow-Bavarian Joint Advanced Student School 19-29. March 2006 Moscow, Russia. Outline. Beam hardening Scattered radiation Ring artefacts References. Beam hardening. Monochromatic vs. Polychromatic X-ray source

325 views • 32 slides

The Characterization of Uncertainties and Artifacts in X-Ray Microtomography

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Experimental study of beam hardening artefacts in photon counting breast computed tomography

Experimental study of beam hardening artefacts in photon counting breast computed tomography. M.G. Bisogni a , A. Del Guerra a ,N. Lanconelli b , A. Lauria c , G. Mettivier c , M.C. Montesi c , D. Panetta a , R. Pani d , M.G. Quattrocchi a , P. Randaccio e , V. Rosso a , P. Russo c

332 views • 14 slides

Experimental study of beam hardening artefacts in photon counting breast computed tomography

Experimental study of beam hardening artefacts in photon counting breast computed tomography. M.G. Bisogni a , A. Del Guerra a ,N. Lanconelli b , A. Lauria c , G. Mettivier c , M.C. Montesi c , D. Panetta a , R. Pani d , M.G. Quattrocchi a , P. Randaccio e , V. Rosso a , P. Russo c

161 views • 14 slides

Quantitative Imaging: X-Ray CT and Transmission Tomography

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Sunday Case of the Day

History : During review of pediatric protocols a highly attenuating object (234HU) extending through all CT sections was noted in the scan of a 3 week old patient. The protocol used 100kVp and z-axis tube current modulation. Sunday Case of the Day. Physics.

77 views • 7 slides