Diagnostic analysis of a new sign (superior sagittal sinus distention) on spontaneous intracranial hypotension MR imaging: a retrospective study.

ABSTRACT:

Objectives

Venous distention may occur in the early stages of spontaneous intracranial hypotension (SIH) as a compensatory mechanism. We hypothesized that analysis of superior sagittal sinus distention (SSSD) on T2-weighted axial images, in combination with other imaging findings, could enhance diagnostic accuracy for SIH.

Methods

This retrospective study analyzed data from patients diagnosed with SIH across three institutions. Data from one institution served as the training set, while data from the remaining two institutions constituted the validation set. Patients with non-spontaneous hypotensive headaches from the same institution during the study period were selected as controls. Two senior neuroradiologists and one junior neuroradiologist evaluated SSSD along with four

SUBMITTER: Cheng W 

PROVIDER: S-EPMC12607206 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature