Scatter Artifact with Ga-68-PSMA-11 PET: Severity Reduced With Furosemide Diuresis and Improved Scatter Correction
نویسندگان
چکیده
منابع مشابه
PSMA Expression in Multinodular Thyroid Neoplasm on Simultaneous Ga-68-PSMA PET/MRI
PSMA PET is increasingly being used in imaging of recurrent prostate carcinoma. A case with suspected recurrent Prostate carcinoma (PCa), raised PSA (Prostate specific antigen) and suspected spinal metastases was referred for whole body Ga-68-PSMA PET/MRI. The study revealed PSMA avid recurrent prostate mass and extensive osseous metastases. Abnormal PSMA uptake in the thyroid gland prompted US...
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PET offers the possibility of quantitative measurements of tracer concentration in vivo. However, there are several issues that must be considered in order to fully realise this potential. Whilst, a correction for a number of background and physical phenomena need to be performed, the two most significant effects are the photon attenuation in the patient and the contribution in the images of ev...
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We are developing an accelerated Monte Carlo simulation of PET that can be uscd for scatter correction of 3D PET datn. Our Monte Carlo technique accurately accounts for single, multiple, and dual Compton scatter events, attenuation through the patient bed, activity from outside the field of view, and the true energy response of the scanner. We have incorporated innovative sampling techniques th...
متن کاملInvestigation of the halo-artifact in 68Ga-PSMA-11-PET/MRI
OBJECTIVES Combined positron emission tomography (PET) and magnetic resonance imaging (MRI) targeting the prostate-specific membrane antigen (PSMA) with a 68Ga-labelled PSMA-analog (68Ga-PSMA-11) is discussed as a promising diagnostic method for patients with suspicion or history of prostate cancer. One potential drawback of this method are severe photopenic (halo-) artifacts surrounding the bl...
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This paper presents a Monte Carlo scatter estimation algorithm for Positron Emission Tomography (PET) where positron-electron annihilations induce photon pairs that fly independently in the medium and eventually get absorbed in the detector grid. The path of the photon pair will be a polyline defined by the detector hits and scattering points where one of the photons changed its direction. The ...
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ژورنال
عنوان ژورنال: Molecular Imaging
سال: 2018
ISSN: 1536-0121,1536-0121
DOI: 10.1177/1536012118811741