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The mT/N1 ratio, PAD, and AAD can be used as predictors of tumor response to SIRT treatment, and SPECT/CT imaging can be used for dosimetric assessment of radioembolization.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039046 | PMC |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0200488 | PLOS |
Radiol Phys Technol
September 2025
Department of Cardiovascular Internal Medicine, NHO Kagoshima Medical Center, 8-1, Shiroyamacho, Kagoshima, Kagoshima, 892-0853, Japan.
In Tl myocardial perfusion single-photon emission computed tomography (SPECT), gastric wall uptake can impact the inferior wall. This study aimed to evaluate the effectiveness and usefulness of the masking on un-smoothed image (MUS) method for Tl myocardial perfusion SPECT. A hemispherical gastric wall phantom was created to simulate the gastric fundus located closest to the myocardium, and the activity was enclosed to achieve an SPECT count ratio against the myocardium equivalent to that observed in clinical practice.
View Article and Find Full Text PDFJ Nucl Med Technol
September 2025
Institute of Nuclear Medicine, First Faculty of Medicine, Charles University and the General University Hospital in Prague, Prague, Czech Republic;
The aim of the study was to validate a new method for semiautomatic subtraction of [Tc]Tc-sestamibi and [Tc]NaTcO SPECT 3-dimensional datasets using principal component analysis (PCA) against the results of parathyroid surgery and to compare its performance with an interactive method for visual comparison of images. We also sought to identify factors that affect the accuracy of lesion detection using the two methods. Scintigraphic data from [Tc]Tc-sestamibi and [Tc]NaTcO SPECT were analyzed using semiautomatic subtraction of the 2 registered datasets based on PCA applied to the region of interest including the thyroid and an interactive method for visual comparison of the 2 image datasets.
View Article and Find Full Text PDFEur J Nucl Med Mol Imaging
September 2025
Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.
Purpose: Cardiac noradrenergic denervation visualized by meta-[I]iodobenzylguanidine ([I]MIBG) imaging supports the diagnosis of Parkinson's disease (PD). Recently, meta-[F] fluorobenzylguanidine ([F]MFBG) PET demonstrated favorable imaging characteristics compared with [I]MIBG scintigraphy for neuroendocrine tumors. We assessed [F]MFBG dosimetry and myocardial pharmacokinetics in healthy controls and PD patients.
View Article and Find Full Text PDFInfect Disord Drug Targets
September 2025
Department of Chemistry, NFC Institute of Technology, Multan, Pakistan.
Introduction: Targeted infection imaging is crucial for accurate diagnosis in postpartum women. This project uses 99mTc-labeled cefixime to develop a radiopharmaceutical for detecting, distinguishing, and treating infections and abscesses in women.
Method: Technetium (TcO4-) chelated with cefixime, reduced by stannous chloride, confirmed via thin-layer chromatography.
J Nucl Cardiol
September 2025
Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA. Electronic address:
Background: Cardiac positron emission tomography (PET) and single-photon emission computed tomography (SPECT) are widely used for the assessment of coronary artery disease. While SPECT remains more available, workforce shortages and training demands contribute to geographic disparities in PET availability, impacting patient access to advanced imaging. Therefore, we assessed trends in the U.
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