Total-body PET/CT using half-dose FDG and compared with conventional PET/CT using full-dose FDG in lung cancer.

Purpose: The purpose was to explore the effects of total-body PET/CT with half-dose F-FDG activity on image quality, compared with those of conventional PET/CT with clinical routine full-dose F-FDG in lung cancer.

Methods: Fifty-six primary lung cancer patients who underwent total-body PET/CT on a uEXPLORER scanner with half-dose (1.85 MBq/kg) F-FDG activity before treatment were retrospectively studied; among them, 28 patients were confirmed by postoperative pathologic examination and 28 patients by biopsy.

Total-Body PET/CT: Current Applications and Future Perspectives.

The purpose of this article is to describe the clinical applications of a total-body PET scanner and discuss future expectations. PET has been widely used in the fields of oncology, neurology, and cardiology. However, current PET scanners have limitations, including long scanning time, low signal-to-noise ratio, and high dose of ionizing radiation.

Impact of patient comfort on diagnostic image quality during PET/MR exam: A quantitative survey study for clinical workflow management.

Background: PET/MR is transferring from a powerful scientific research tool to an imaging modality in clinical routine practice. Whole body PET/MR screening usually takes 30-50 minutes to finish, during which a few factors might induce patient discomfort and further cause degraded image quality. The aim of this report is to investigate the patients' perception of the imaging procedure and its correlation with image quality.

Breast-specific gamma imaging with Tc-99m-sestamibi in the diagnosis of breast cancer and its semiquantitative index correlation with tumor biologic markers, subtypes, and clinicopathologic characteristics.

Objectives: To determine the sensitivity of breast-specific gamma imaging (BSGI) in diagnosing breast cancer and assess the potential correlation between the semiquantitative index of BSGI and biologic markers, molecular subtypes, and clinicopathologic characteristics of breast cancer.

Materials And Methods: The sensitivity of BSGI for breast cancer was retrospectively assessed in 102 female breast cancer patients who underwent BSGI before surgery and was compared with that of ultrasonography and mammography. BSGI was visually graded on the basis of the Society of Nuclear Medicine and Molecular Imaging guideline.

Changes of regulatory T and B cells in patients with papillary thyroid carcinoma after 131I radioablation: a preliminary study.

Introduction. Lymphocytic infiltration and specific lymphocytes subsets may play important roles in papillary thyroid carcinoma (PTC) progression and prognosis. In this study, we try to understand the influence of (131)I radioablation on the important lymphocytes subtypes of regulatory T and B cells (Tregs and Bregs).

Visual and semi-quantitative analyses of dual-phase breast-specific gamma imaging with Tc-99m-sestamibi in detecting primary breast cancer.

Objectives: Breast cancer is the most common malignancy for females worldwide. This study was to evaluate the application of dual-phase breast-specific gamma imaging (BSGI) in detecting primary breast cancer.

Methods: Seventy-six patients with indeterminate breast lesions that underwent dual-phase BSGI enrolled in this study.