Objective To compare the image quality of T1 weighted(T1WI)free breathing three-dimensional acquisi-tion K-space radiation filled volume interpolation imaging(StarVIBE)sequence for head and neck tumor imaging with water lipid separation technique(Dixon)VIBE sequence,and explore its application value in head and neck tumors.Methods Retrospective collection of patients with clinically discovered head and neck tumors who underwent free breathing StarVIBE sequence and Dixon-VIBE enhanced T1 WI scanning.The regions of interest(ROIs)of the tumor lesions were delineated on both sequences,and signal intensity(SI)and standard deviation(SD)were recorded.The signal-to-noise ratio(SNR)and contrast noise ratio(CNR)of the tumor lesions were calculated for StarVIBE and Dixon enhanced sequences.Evaluate the clarity of lesions,artifacts,neck vascular clarity,cartilage structure clarity,and overall image quality using the"five point method"(1 point=very poor,5 points=excellent),and compared the differences between StarVIBE and Dixon enhanced sequences.Results 29 patients with head and neck tumors were included in the study.The SNR of StarVIBE tumor le-sions was higher than that of Dixon enhanced sequences(P=0.01),while the CNR was not statistically significant(P=0.75).The StarVIBE enhanced sequence compared with the Dixon enhanced sequence,showed better clarity of tumor le-sions(4.90 vs.3.72),artifacts(4.79 vs.3.41),neck vascular clarity(5.00 vs.4.03),cartilage structure clarity(4.71 vs.2.82),and overall image quality(4.93 vs.3.79),the difference between the two groups was statistically significant(P＜0.05).Conclusion The free breathing enhanced StarVIBE sequence has high quantitative and qualitative image quali-ty in displaying the primary lesion of head and neck tumors,and is recommended as a clinical routine examination sequence for head and neck tumors.
关键词
头颈肿瘤/磁共振成像/图像质量
Key words
Head and neck tumors/Magnetic resonance imaging/image quality
维普
万方数据