Prospective Study of Systemic Yttrium-90 Elution during Radioembolization of Hepatic Metastases.

Purpose: To evaluate total blood radioactivity (BR) after SIR-Spheres yttrium-90 (Y) radioembolization and differences in BR based on delivery method.

Materials And Methods: Twenty participants with hepatic metastases undergoing first radioembolization were prospectively enrolled from December 2017 to June 2018. Blood samples were drawn at baseline and 0, 10, 20, 60, and 120 minutes after Y administration.

METHOD FOR OCCUPATIONAL SKIN DOSE ESTIMATION IN UPPER EXTREMITY 131I-MIBG CONTAMINATION.

This study examines upper extremity skin contamination of nuclear medicine and radiation safety staff during 131I-Metaiodobenzylguanidine (MIBG) therapy. Utilizing retrospective data, a methodology for performing a rapid assessment of the radiation dose to the skin of the upper extremities is presented. Using the skin contamination measurements and calculated skin dose for each contamination incident at our facility, a conversion factor (XE) was derived that estimates skin dose (DE) based on the initial contamination measurement.

Investigation of dental cone-beam CT pixel data and a modified method for conversion to Hounsfield unit (HU).

Objectives: To investigate the relationship in dental cone-beam CT (CBCT) between the manufacturer-reported image pixel data and a modified conversion to CT number densities in Hounsfield unit (HU).

Methods: A standardized CT phantom was imaged using typical clinical parameters on CBCT from three manufacturers (Carestream 9300, Carestream Health, Rochester, NY; J Morita 3D Accutomo, J. Morita Mfg.

Acid sphingomyelinase inhibition protects mice from lung edema and lethal Staphylococcus aureus sepsis.

Unlabelled: Pulmonary edema associated with increased vascular permeability is a severe complication of Staphylococcus aureus-induced sepsis and an important cause of human pathology and death. We investigated the role of the mammalian acid sphingomyelinase (Asm)/ceramide system in the development of lung edema caused by S. aureus.