Association between Transvers Sinuous Hypoplasia with Sigmoid Sinuous and Jugular Vein Hypoplasia with use of MRI and Cervical Color Doppler Technique

Abstract

Interpretation of medical images directly based on knowledge of anatomy and natural variations. The transverse sinus hypoplasia is one of the common variants of cerebral venous sinuses, which sometimes becomes challenging to distinguish from venous sinus thrombosis in imaging studies. The purpose of this study is to investigate the relationship between hypoplasia of the transverse sinus and hypoplasia of the sigmoid sinus and internal jugular vein using MRI findings and cervical Doppler ultrasound. Materials and Methods: In this descriptive study, patients were included based on the inclusion and exclusion criteria. The MRV of the patients was interpreted and the morphology of the transverse sinus was evaluated using the Fofi method in such a way that the transverse sinus of one side was compared and graded in their middle part (diameter of the transverse sinus on both sides in millimeters on both sides of the size was taken). Then jugular vein ultrasound was performed based on the method of Menegatti et al. The patient was placed in the supine position and the patient was asked to breathe normally and relax the neck muscles. Then, the transverse section of the jugular vein was examined and its diameter was measured at three points. Results: 90 patients with normal MRI and an average age of 51.14 ± 14.36 years were enrolled. The most common complications of patients was headache (55.6%) and speech disorder (21.1%). Other complications included double vision, hallucinations, anxiety, and panic disorder. Significantly, TS hypoplasia coincided with SS hypoplasia in 80.4% and IJV hypoplasia in 60.9%. Meanwhile, in the comparison of the involved side, it was observed that there was significantly hypoplasia of TS (67.4% vs. 32.6%; p=0.012), SS (78.4% vs. 21.6%; p=0.031) ) and IJV (75% vs. 25%; p=0.023) was more common on the left side than the right side.