Basi-parallel anatomic scanning (BPAS-MRI) compared with high-resolution MRI for the diagnosis of vertebrobasilar artery abnormalities. Issue 123 (February 2020)

• Record Type: Journal Article
• Authors: Liu, Jiao; Zhao, Lili; Yao, Li; Li, Xiaohui; Li, Tao; Wang, Heying; Wang, Xiaoya; Jian, Yating; Sun, Man; Li, Ye; Dang, Meijuan; Zhang, Yiheng; Wu, Yulun; Zhang, Guilian
• Is Part Of: European journal of radiology. Issue 123(2020)
• Publication Date: 2020-02
• Subjects: Basi-parallel anatomical scanning(BPAS-MRI) -- High-resolution magnetic resonance -- Atherosclerosis -- Vertebral artery hypoplasia -- Dissection; Medical radiology -- Periodicals; Radiology -- Periodicals; Radiologie médicale -- Périodiques; Medical radiology; Periodicals; 616.075705
• DOI: 10.1016/j.ejrad.2019.108791
• Languages: English
• ISSNs: 0720-048X

Abstract

Highlights: BPAS-MRI can show the outer contour of the intracranial vertebrobasilar artery. BPAS-MRI could be consistent with HR-MRI for vertebrobasilar differential diagnosis. BPAS-MRI could be an alternative when HR-MRI is not feasible. Abstract: Purpose: To investigate the utility of basi-parallel anatomic scanning magnetic resonance imaging (BPAS-MRI) for the diagnosis of vertebrobasilar artery lesions. Method: From October 2017–November 2018, 105 consecutive patients with abnormal configuration of the vertebrobasilar artery on time-of-flight magnetic resonance angiography (TOF-MRA) were enrolled. Conventional high-resolution MRI combined with TOF-MRA were performed to diagnose lesions and were used as the standard for sensitivity and specificity determination. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of BPAS-MRI combined with TOF-MRA were calculated. The consistencies between the two methods were evaluated by kappa test. Results: Of the 105 patients, 45 were diagnosed with arteriosclerosis, 46 with vertebral artery dysplasia, 11 with artery dissection or dissecting aneurysm, and 3 as simple dilatation. Results Compared with conventional high-resolution MRI combined with TOF-MRA, for vertebrobasilar arteriosclerosis, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of BPAS-MRI combined with TOF-MRA were 95.6 %, 95.0 %, 93.5 %, 96.6 % and 95.2 %, respectively and kappa value was 0.903. For vertebral artery dysplasia, they were 100 %, 96.6 %, 95.8 %, 100 %, and 98.1 %, respectively and kappa value was 0.961. For vertebrobasilar artery dissection or dissection aneurysm, they were 81.8 %, 96.8 %, 97.8 %, 75.0 % and 95.2 %, respectively and kappa value was 0.756. Conclusions: BPAS-MRI can show the outer contour of the vertebrobasilar artery system. Combined with TOF-MRA, it may be used to differentiate among vertebrobasilar artery abnormalities, and be used in hospitals where conventional high-resolution MRI is not feasible.