[Therapeutic and diagnostic classification of degenerative spondylolisthesis: validation and multiple-center inter-observer agreement].

Object: To evaluate inter- and intra-observer agreement of the proposed diagnostic and treatment classification of degenerative spondylolisthesis.

Material And Methods: The proposed diagnostic and treatment classification of degenerative spondylolisthesis was validated according to the GRRAS protocol. For this purpose, we retrospectively analyzed MRI, CT and spinal radiography data in 20 patients.

Aс/Bi generator for direct synthesis of Bi-labeled bioconjugates.

Background: Bi is a short-lived radionuclide currently trialed for alpha therapy of various oncological diseases. A serious obstacle to the wide medical use is decay losses of Bi during a conventional synthesis of radiopharmaceuticals. In this work, we aimed to develop a two-column Aс/Bi generator providing the accumulation of Bi separately from the parent Ac via continuous circular separation and decay of intermediate Fr.

Rubidium vanadium(III) vanadyl(IV) phosphate, RbV(VO)(PO)(HPO): crystal chemistry and low-dimensional magnetism.

In this paper, we present the synthesis and characterization of a rubidium vanadium(III) vanadyl(IV) phosphate, obtained under hydrothermal conditions. The new compound crystallizes in the triclinic space group 1̄ with the unit cell parameters = 9.637(1), = 12.

Gas-chemical approach to Ac/Bi radionuclide generator for medical application.

The article presents a novel gas-chemical approach for Ac/Bi generators, which provides effective separation of Bi from parent Ac. The main problem with the generators of high activity is the radiation stability of sorbents, which is not substantial in this gas-chemical method of separation, where only radiationally stable inorganic materials are used. The approach includes heating at high temperature (about 900-1000 °C) Ac sample deposited on a backing material (Nb, quartz glass, stainless steel) in hydrogen-containing inert gas flow.