AI Article Synopsis
- The study investigates the effectiveness of digital subtraction techniques in imaging head and neck vessels using 64-slice spiral CTA.
- Five imaging methods were compared in terms of image quality and time efficiency, with subtraction methods showing superior results in both aspects.
- Results indicate that digital subtraction methods provide higher image quality, shorter imaging times, and better sensitivity for detecting aneurysms and stenosis compared to non-subtraction methods.
Article Abstract
Objective: To explore the imaging value of digital subtraction technique on head and neck with 64-slice spiral CTA.
Methods: 958 patients of head and neck vessels were examined with the direct method, Surestart law, low-dose tes methods, Surestart subtraction method, low-dose test subtraction method by CTA, the former three kinds are non-subtraction method, the latter two kinds are subtraction method, a comparative analysis on the five methods from the image quality, imaging time, imaging values, seek for the CTA method with optimal image quality, the shortest imaging time, the best value.
Results: The image quality with the direct method (2.82 points), Surestart law (3.25 points), low-dose test method (3.33 points), Surestart subtraction method (4.10 points), low-dose test subtraction method (4.18 points), gradually changed well in order, the image quality of subtraction method is better than non-subtraction method; imaging time with direct method (40.26 minutes), Surestart law (35.06 minutes), small dose test method (33.49 minutes), Surestart subtraction method (17.52 minutes), small dose test subtraction method (15.32 minutes), gradually become shorter in order, the imaging time of subtraction method is shorter than the non-subtraction method; Evaluation on the sensitivity of aneurysms and stenosis, subtraction method is more better than the non-subtraction method, the little narrow extent and the smaller aneurysm, the subtraction method is more better than non-subtraction method.
Conclusion: The digital subtraction method is an ideal head and neck imaging method with 64-slice spiral CTA.
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