The main applications of 188 Re in radionuclide therapies include trans-arterial liver radioembolization and palliation of painful bone-metastases. In order to optimize 188 Re therapies, the accurate determination of radiation dose delivered to tumors and organs at risk is required. Single photon emission computed tomography (SPECT) can be used to perform such dosimetry calculations. However, the accuracy of dosimetry estimates strongly depends on the accuracy of activity quantification in 188 Re images. In this study, we performed a series of phantom experiments aiming to investigate the accuracy of activity quantification for 188 Re SPECT using high-energy and medium-energy collimators. Objects of different shapes and sizes were scanned in Air, non-radioactive water (Cold-water) and water with activity (Hot-water). The ordered subset expectation maximization algorithm with clinically available corrections (CT-based attenuation, tr...
from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2gMYwLa
via IFTTT
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
Objectives Adult sagittal posture is established during childhood and adolescence. A flattened or hypercurved spine is associated with poore...
-
ORL 2017;79:164-165 from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2oKOLwE via IFTTT
-
Abstract The first absolute experimental bond dissociation energies (BDEs) for the main heterolytic bond cleavages of four benzylpyridiniu...
-
Abstract Soil conditioners can be used to compensate for the insufficient soil nutrition and organic matter (OM) of arable soils. However, ...
-
Caring for Patients with Physical Disabilities: Assessment of an Innovative Spinal Cord Injury Session that Addresses an Educational Gap Des...
-
ACS Nano DOI: 10.1021/acsnano.7b02058 from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2pOv8F4 via...
-
Abstract Objective To study the effects of Astragalus polysaccharide (APS), the primary effective component of the Chinese herb medicine A...
-
Background First rib fractures are considered indicators of increased morbidity and mortality in major trauma. However, this has not been de...
-
A surgically implanted sensor could let people control a prosthetic using their own nerves, giving a greater range of movement than muscle-...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου