Does measurement of the jugular foramen diameter on MRI help to differentiate transverse sinus thrombosis from unilatera
- PDF / 1,023,083 Bytes
- 7 Pages / 595.276 x 790.866 pts Page_size
- 26 Downloads / 148 Views
MAGNETIC RESONANCE IMAGING
Does measurement of the jugular foramen diameter on MRI help to differentiate transverse sinus thrombosis from unilateral transverse sinus hypoplasia? Burcu Gul1 · Cesur Samanci2 · Derya Ugurlu Uluduz3 · Deniz Alis1 · Ipek Midi4 · Naci Kocer1 · Civan Islak1 · Osman Kizilkilic1 Received: 21 August 2019 / Accepted: 12 August 2020 © Italian Society of Medical Radiology 2020
Abstract Background and Purpose The transverse sinus (TS) is a frequent location of cerebral venous thrombosis. However, unilateral TS hypoplasia is a frequent variation and radiological imaging pitfall in the diagnosis because it may mimic unilateral TS thrombosis. The purpose of this study is to find a cutoff value for bilateral jugular foramen (JF) diameter ratios on magnetic resonance imaging (MRI) for differentiating TS thrombosis from TS hypoplasia. Materials and Methods We retrospectively reviewed magnetic resonance venography results for 174 patients with reduced unilateral TS caliber resulting from either unilateral thrombosis (80 patients) or unilateral hypoplasia (94 patients). We calculated the ratio by proportioning the diameter of the JF ipsilateral to the TS with caliber reduction to the diameter of the contralateral JF. The Mann–Whitney U test was used to compare the ratios between thrombosis and hypoplasia groups, and the cutoff value was calculated by receiver-operating characteristic curve analysis. Results The ratio of bilateral JF diameters was lower in patients with hypoplasia than those with thrombosis (P .05). No differences were found between two groups in terms of age, either (P > .05). In 80 patients with unilateral TS thrombosis, 60 patients had right-sided thrombosis (75%) and 20 (25%) had left-sided thrombosis. In 94 patients with unilateral hypoplasia, 31 patients (33%) had hypoplasia of the right TS and 63 (67%) had hypoplasia of the left TS. Patients with unilateral TS hypoplasia had a significantly lower ratio of bilateral JF diameters compared to patients with thrombosis (P 0.638), and false positivity was 35.1% (proportion of thrombosis patients having a ratio value that is
Data Loading...
