In 23 patients with treated ovarian cancer, 24 magnetic resonance (MR) examinations of the abdomen and pelvis were performed before and after administration of an oral superparamagnetic contrast medium. Depiction of bowel loops was judged sufficient in 47% with plain scans and in 85% with enhanced scans. Minor artefacts attributed to the agent were noted in 32% of examinations and were classified as disturbing in 8%. The diagnostic information obtained after contrast enhancement was estimated to be superior to that from plain MRI in 20% of patients. The use of oral contrast medium did not alter the MR diagnosis of "tumour recurrence" or "disease-free" in any patient. Our results suggest that superparamagnetic iron oxide is an effective and reliable approach to negative bowel contrast enhancement, increasing the confidence level when distinguishing intestines from solid structures.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1259/0007-1285-66-785-415 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sublethal and lethal toxicity assessment of lanthanum and gadolinium to Daphnia magna in a 7-day test method.
Environ Sci Pollut Res Int
January 2025
Life Sciences, Hamburg University of Applied Science, Ulmenliet 20, 21033, Hamburg, Germany.
The use of rare earth elements has increased in recent years, leading to a rise in environmental concentrations. Despite the growth in number of studies regarding toxicity, knowledge gaps remain. For Daphnia magna, standardized test methods involve exposure periods of either 48 h or 21 days to assess toxicological effects.
View Article and Find Full Text PDFEffects of fire recurrence and severity on Mediterranean vegetation dynamics: Implications for structure and composition in southern Spain.
Sci Total Environ
January 2025
Forest Fire Laboratory (LABIF), Forestry Engineering Department, University of Cordoba, 14071 Cordoba, Spain. Electronic address:
Most Mediterranean ecosystems have been profoundly shaped by wildfires, driving the evolution of plant species. Through photo interpretation and field inventories, this research assessed vegetation dynamics from 1984 to 2021, examining how fire severity and recurrence, key fire regime variables, influenced changes in structure and woody species diversity. Using two burn scars (1988 and 2006), we identified four scenarios dominated by Pinus pinea tree species: control (unburned), areas burned once (either in 1988 or 2006), and twice (in both 1988 and 2006).
View Article and Find Full Text PDFApplying Natural Language Processing Techniques to Map Trends in Insomnia Treatment Terms on the r/Insomnia Subreddit: Infodemiology Study.
J Med Internet Res
January 2025
Division of Sleep Medicine, Harvard Medical School, Boston, MA, United States.
Background: People share health-related experiences and treatments, such as for insomnia, in digital communities. Natural language processing tools can be leveraged to understand the terms used in digital spaces to discuss insomnia and insomnia treatments.
Objective: The aim of this study is to summarize and chart trends of insomnia treatment terms on a digital insomnia message board.
Pulsed Ultrasound-Mediated Drug Delivery Enhancement Through Human Sclera.
Transl Vis Sci Technol
January 2025
Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
Purpose: The purpose of this study was to characterize whether pulsed ultrasound (PUS) affects transscleral drug delivery.
Methods: Fluorescein sodium (NaF, 376 Da) and fluorescein isothiocyanate-conjugated dextran 40 (FD-40, 40 kDa) were used as model drugs. Human sclera grafts were placed in modified Franz diffusion cells and were treated by PUS (1 megahertz [MHz], 0.
Are we systematically overdosing women? Revisiting standardized contrast protocols for thoracoabdominal CT scans.
Eur Radiol
January 2025
Department of Diagnostic and Interventional Radiology, University Hospital Augsburg, Augsburg, Germany.
Objectives: The purpose of this study was to evaluate whether the iodine contrast in blood and solid organs differs between men and women and to evaluate the effect of BMI, height, weight, and blood volume (BV) on sex-specific contrast in staging CT.
Materials And Methods: Patients receiving a venous-phase thoracoabdominal Photon-Counting Detector CT (PCD-CT) scan with 100- or 120-mL CM between 08/2021 and 01/2022 were retrospectively included in this single-center study. Image analysis was performed by measuring iodine contrast in the liver, portal vein, spleen, left atrium, left ventricle, pulmonary trunk, ascending and descending aorta on spectral PCD-CT datasets.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!