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The Agreement Between Lobar Emphysematous Destruction and Volumetric Air Trapping on CT Scan in Severe COPD Patients.
Lung
January 2025
Department of Pulmonary Diseases, University of Groningen, University Medical Centre Groningen, PO Box 30001, 9700 RB, Groningen, The Netherlands.
Comparison of 2D and 3D lung lobe quantification with Ventilation/Perfusion Ratio.
Nuklearmedizin
December 2024
Klinik für Nuklearmedizin, University Hospital Aachen, Aachen, Germany.
In this study, standard 2D lung lobe quantification is compared with two 3D lung lobe quantification software tools to investigate the clinical benefit of a 3D approach. The accuracy of 2D versus 3D lung lobe quantification is evaluated based on the calculated numerical ventilation-perfusion ratio (VQR) using a receiver operating curve (ROC) analysis.A study group of 50 consecutive patients underwent a planar lung scintigraphy (anterior/posterior) as well as ventilation/perfusion single photon emission computed tomography (SPECT/CT) to exclude acute pulmonary embolism.
View Article and Find Full Text PDFLiver Imaging in Fontan Patients: How Does Ultrasound Compare to Cross-Sectional Imaging?
JACC Adv
November 2024
Abdominal Division of Radiology, Joint Department of Imaging, UHN, University of Toronto, Toronto, Ontario, Canada.
Background: Fontan patients frequently develop liver cirrhosis (LC); however, the diagnostic accuracy of ultrasound (US) for detecting LC and the clinical implications of such diagnoses have not been clearly established.
Objectives: This study aims to evaluate the diagnostic performance of US for detecting LC in an adult population with Fontan circulation and to determine the correlation between LC and mortality/transplantation.
Methods: This was a retrospective study.
Delayed three-dimensional inversion recovery-prepared fast low-angle shot for airway imaging in children: More than myocardial fibrosis assessment.
J Cardiovasc Magn Reson
December 2024
Department of Diagnostic and Interventional Radiology, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada. Electronic address:
Article Synopsis
- A study was conducted to assess the effectiveness of a specific MRI technique (delayed 3D IR FLASH) in evaluating the lower airways of children during routine cardiovascular magnetic resonance imaging.
- The study included 180 pediatric patients, with a high image quality rating and visibility of lower airways; around 21% of patients showed lower airway abnormalities, particularly among those with congenital heart disease.
- The results suggest that this MRI method is highly reliable and effective for viewing lower airway anatomy, enhancing the potential for identifying issues in children with heart conditions.
Retrospective Data-Driven Motion Correction of 18 F-FDG Brain PET.
Clin Nucl Med
December 2024
From the Department of Nuclear Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
A 51-year-old man with severe multifactorial neurocognitive disorders subsequent to delirium, benzodiazepine withdrawal, and preexisting psychiatric illness was referred for 18 F-FDG PET/CT brain imaging in order to rule out an underlying neurodegenerative cause of the symptoms, particularly frontotemporal lobar degeneration. Imaging was impaired by severe motion artifacts, leading to a false-positive result. However, utilizing retrospective data-driven motion correction facilitated a change in diagnosis, ruling out the presence of neurodegenerative disease.
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