The trends and significance of SSTR PET/CT added to MRI in follow-up imaging of low-grade meningioma treated with fractionated proton therapy.

Purpose: Overexpression of the somatostatin receptor (SSTR) has led to adoption of SSTR PET/CT for diagnosis and radiotherapy planning in meningioma, but data on SSTR expression during follow-up remain scarce. We investigated PET/CT quantifiers of SSTR tracers in WHO grade I meningioma following fractionated proton beam therapy (PBT) compared to standard response assessment with MRI.

Methods: Twenty-two patients diagnosed with low-grade meningioma treated by PBT were included.

Splenic scintigraphy-reloaded: Pulmonary and pleural lesions proven to be splenosis by heat-damaged erythrocyte scintigraphy.

We report the case of a 60-year-old patient whose computed tomography revealed multiple pleural foci that were classified as potentially malignant. After revealing traumatic splenectomy in the patient's history, the differential diagnosis of splenosis was considered and a 99m-techentium heat-damaged autologous red blood cells scintigraphy performed. This conventional method can be used to reliably make an exact diagnosis avoiding more expensive or invasive methods.

Unveiling Cardiac Amyloidosis, its Characteristics, and Outcomes Among Patients With MR Undergoing Transcatheter Edge-to-Edge MV Repair.

Background: Mitral regurgitation (MR) and cardiac amyloidosis (CA) both primarily affect older patients. Data on coexistence and prognostic implications of MR and CA are currently lacking.

Objectives: This study sought to identify the prevalence, clinical characteristics, and outcomes of MR CA compared with lone MR.

Diagnostic Reference Levels for nuclear medicine imaging in Austria: A nationwide survey of used dose levels for adult patients.

Purpose: To assess dose levels in routine nuclear medicine (NUC) procedures in Austria as a prior to a legislative update of the National Diagnostic Reference Levels (NDRL).

Method: As part of a nationwide survey of common NUC-examinations between June 2019 and November 2019, data sets were collected from 33 Austrian hospitals with NUC equipment. All hospitals were asked to report the NUC imaging devices in use (model, type, year of manufacture, detector material, collimators), the standard protocol parameters for selected examinations (standard activity, collimator, average acquisition time, reconstruction type, use of time-of-flight) and to report data from 10 representative examinations (e.