A Study of Knowledge and Attitude of Medical Staff Towards 3D Black Blood MR Angio Methods in High-Resolution Magnetic Resonance Vessel Wall Imaging of Intracranial Arteries

Lijuan Dai,1,&ast; Xi Tian,2,&ast; Yang Li,1 Cheng Li,3 Gang Wu3 1Department of Neurology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, People’s Republic of China; 2Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Peking University, Beijing, People’s Republic of China; 3Department of Radiology, The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, People’s Republic of China&ast;These authors contributed equally to this workCorrespondence: Gang Wu, Department of Radiology, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, People’s Republic of China, Tel +8613601256020, Email [email protected]: This study aims to investigate the knowledge and attitude of medical staff towards 3D Black Blood MR Angio methods in high-resolution magnetic resonance vessel wall imaging (HR-MRI) of intracranial arteries.Methods: A cross-sectional study conducted from August 2– 25 2024 collected demographic information, knowledge, and attitude scores of medical staff through self-designed questionnaires. The questionnaires exhibited a high internal consistency (Cronbach’s α = 0.870). The Questionnaire Star online platform was used, and a WeChat-based applet generated a QR code for participants to access and complete the questionnaire.Results: A total of 287 valid questionnaires were enrolled. The median (25% quartile and 75% quartile) of knowledge and attitude scores were 12 (9, 15) (possible range: 0– 17) and 59 (55, 64) (possible range: 18– 90). The correlation analysis demonstrated a positive correlation between knowledge and attitude (r = 0.361, P < 0.001). Multivariate logistic regression analysis showed that holding an intermediate title (OR = 4.065, 95% CI: 1.529, 10.808, P = 0.005), a vice senior title (OR = 5.443, 95% CI: 1.614, 18.361, P = 0.006), and having no prior experience with HR-MRI (OR = 0.422, 95% CI: 0.236, 0.753, P = 0.003) were independently associated with knowledge. Having one year or less of work experience (OR = 0.095, 95% CI: 0.010, 0.952, P = 0.045), having 1– 3 years of work experience (OR = 0.330, 95% CI: 0.114,0.957, P = 0.041), and having no prior experience with HR-MRI (OR = 0.422, 95% CI: 0.236,0.753, P < 0.001) were independently associated with attitude.Conclusion: This study identified suboptimal knowledge and inconsistent attitudes toward intracranial HR-MRI among medical staff, with professional title, scanning experience, and prior HR-MRI exposure being key determinants. Addressing these gaps through competency-based credentialing and standardized protocol dissemination is critical to realizing HR-MRI’s clinical potential in cerebrovascular care.Keywords: knowledge, attitude, medical staff, high-resolution magnetic resonance vessel wall imaging (HR-MRI), intracranial arteries