Results 171 to 180 of about 110,471 (285)

Gamma activity concentrations of ²²⁶Ra, ²³²Th, ⁴⁰K, and health hazard assessments of granites from Wadi El-Nabi' mining area, Egyptian Nubian Shield. [PDF]

Sci Rep
Shereif AS, Heikal MTS, El Ela ASA, El Shabasy A, Masoud AE, Csámer Á.   +5 more
europepmc   +1 more source

Direct estimation of activity concentration in regional voxels with application to 177Lu peptide receptor radionuclide therapy

Medical Physics, Volume 53, Issue 4, April 2026.
Abstract Background Quantitative SPECT in radionuclide‐therapy is limited by partial‐volume effects (PVEs). The implementation of regional voxels (r.v.), estimating mean activity concentrations in regions directly from projections, offers a promising alternative for the geometry‐specification to reduce PVEs.
Johan Gustafsson, Erik Larsson, Katarina Sjögreen Gleisner   +2 more
wiley   +1 more source

Geospatial assessment of natural radionuclides in urban soil of Chennai Metropolitan City. [PDF]

Sci Rep
Bharath KM, Bramha S, Chandrasekaran S, Krishnaveni M.   +3 more
europepmc   +1 more source

Impact of partial volume correction on radiomics reproducibility in theranostic SPECT/CT imaging

Medical Physics, Volume 53, Issue 4, April 2026.
Abstract Background: Radiomics has shown potential for quantitative characterization of tumors in molecular imaging; however, its clinical translation in theranostic 177Lu SPECT/CT remains limited due to poor robustness of extracted features to reconstruction variability and partial volume effects.
Mohammad Saber Azimi, Maryam Cheraghi, Mohammad Ali Ghodsi Rad, Mohadeseh Bayat, Maryam Alhashim, Habibollah Dadgar, Mahmoud Alabedi, Nahid Ibrahim, Enas Alwuhaib, Hossein Arabi, Arman Rahmim, Habib Zaidi   +11 more
wiley   +1 more source

Pulmonary Transit Time Can Be Accurately Quantified From Non‐Arterial Input Function Series in First‐Pass Cardiac Perfusion MRI

Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2207-2213, April 2026.
ABSTRACT Purpose Previous studies suggested that arterial‐input‐function (AIF) images are necessary to avoid signal saturation for pulmonary transit time (PTT) measurements. This study challenges that notion by investigating whether PTT can be accurately measured using blood pool signals from myocardial enhancement (non‐AIF) images during resting first‐
Mingyue Zhao, Lexiaozi Fan, Kyungpyo Hong, Benjamin H. Freed, Jacqueline Urban, Kelvin Chow, Li‐Yueh Hsu, Daniel C. Lee, Daniel Kim   +8 more
wiley   +1 more source

Radiological and radioecological risk assessment around the West Delta fossil-fuel power station in Egypt. [PDF]

Sci Rep
Elgingihy SM, Abdelsalam AA, Saleh IH.
europepmc   +1 more source

Pesticide prioritization based on risk and model diet proposals for assessing cumulative exposure to pesticide residues in the Brazilian population through food consumption

Pest Management Science, Volume 82, Issue 4, Page 3853-3873, April 2026.
A risk classification of registered pesticides in Brazil was conducted, and the contribution of food to cumulative pesticide exposure was evaluated. Model diets were proposed, based on Brazilian consumption patterns. Abstract BACKGROUND Pesticide residue exposure assessments can be carried out during both the pre‐regulation and post‐regulation phases ...
Bianca Figueiredo de Mendonça Pereira, Bernardete Ferraz Spisso   +1 more
wiley   +1 more source

Assessment of ¹³⁷Cs, ⁹⁰Sr, ²⁴¹Am, ^239+240Pu, ³H (HTO, OBT) in the fish from lakes, rivers, and nuclear shell craters of the semipalatinsk test site. [PDF]

Sci Rep
Panitskiy AV, Baigazinov Z, Baigazy SA, Alexandrovich IA, Polivkina YN, Salmenbayev SE, Alnur R Kozhabekova, Mukhamediyarov NZ, Adjei-Kyereme S, Hegedűs M, Kovács T.   +10 more
europepmc   +1 more source

Uptake and Binding of At‐211 Into K‐ and Cs‐Derivatives of Alpha‐Zirconium Phosphate Nanoplatelets for Use as a Targeted Alpha Therapy Delivery Platform

Small Science, Volume 6, Issue 4, April 2026.
Intercalation of At‐211 between the layers of K‐ or Cs‐zirconium phosphate. The ion exchange behavior of K‐ and Cs‐derivatives of α‐zirconium phosphate, A‐ZrP, with the targeted alpha therapy (TAT) radionuclide 211At, as At+ and AtO+, has been investigated. The K‐ZrP shows strong affinity for both At+ and AtO+, ≥99% uptake.
B. D. Imansha Madhushan, Adrianna L. Orsi, Jehan S. Perera, Jennifer M. Pyles, Christine C. Lawrence, Marcus Le, Gabriel C. Tabacaru, Shayden R. Fritz, Lauren A. McIntosh, Sherry J. Yennello, Jonathan D. Burns   +10 more
wiley   +1 more source

Challenges and Opportunities in Radioligand Therapy. [PDF]

J Nucl Med Technol
Currie GM, Bailey DL.
europepmc   +1 more source