ArticleInternational journal of general medicine2025
The Imaging Evaluation of Left Atrial Appendage: CT Large-Spiral Arterial Late Scan.
Article in International journal of general medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: Compared with retrospective ECG-gated arterial phase scan, to investigate the clinical application value of dual-source CT large-spiral arterial late scan in the imaging evaluation of left atrial appendage (LAA). Patients and Methods: A total of 108 patients requiring LAA CT angiography (CTA) due to atrial fibrillation (AF) were selected from September 2024 to December 2024, including 52 patients in group A (Flash large-spiral arterial late scan) and 56 patients in group B (retrospective ECG-gated arterial phase scan). All patients underwent double-phase scan. The interval between the two periods is 30s. Clinical data of patients were collected, the scanning range and radiation dose received were recorded. The CT values of LAA, ascending aorta (AA) at the same level and left atrium at the largest level were measured. At the same time, evaluate other meaningful lesions within the scan range. Results: The difference between the two groups of scanning range and radiation dose was statistically significant ( Conclusion: By adopting the three-generation dual-source FLASH large-pitch arterial late scan mode, the complete filling rate of the LAA was significantly improved. Not only shortened the examination time, reduced the radiation dose, but also increased the detection rate of other significant lesions within the scanning range for the patients.
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