AI Article Synopsis
- The study focuses on evaluating transverse sinus stenosis (TSS) and its link to diseases associated with it, using a new quantitative assessment method.
- Researchers examined patients with pulsatile tinnitus and idiopathic intracranial hypertension, measuring various cross-sectional areas of TSS and adjacent venous segments.
- Results showed a significant correlation between these measurements and the trans-stenotic pressure gradient (TPG), suggesting that the TSS area/poststenotic segment area ratio could effectively predict TPG.
Article Abstract
Background: Evaluation of the transverse sinus stenosis (TSS) is essential for TSS-related diseases.
Objective: To investigate a new method for the quantitative assessment of TSS based on the correlation between TSS and trans-stenotic pressure gradient (TPG).
Methods: Patients with unilateral pulsatile tinnitus with or without idiopathic intracranial hypertension were retrospectively included. All patients underwent CT venography and venous manometry and were confirmed to have TSS. The cross-sectional diameter/area of TSS, the poststenotic and prestenotic segments, and the superior sagittal sinus (SSS) were measured. The degree of TSS was calculated by dividing the diameter/area of TSS by the diameter/area of the poststenotic segment (M1/M2), prestenotic segment (M3/M4), and SSS (M5/M6). Partial correlation analysis (controlling for the effect of age, sex, outflow laterality, and contralateral stenosis) was performed to evaluate the correlation between M1-M6 and the TPG. Receiver operating characteristic curve analysis of M1-M6 for diagnosing a significant TPG (≥8 mm Hg) was performed.
Results: Ninety-nine patients met the inclusion criteria. The partial correlation coefficients between M1-M6 and the TPG were 0.60, 0.61, 0.43, 0.48, 0.39, and 0.54, respectively. The areas under the curve (AUCs) of M1-M6 for diagnosing a significant TPG were 0.81, 0.86, 0.68, 0.69, 0.64, and 0.72, respectively. The AUC of M2 was significantly larger than that of M3 (P=0.002), M4 (P<0.001), M5 (P=0.001), and M6 (P<0.001).
Conclusions: Quantitatively assessing TSS by taking the ratio of the cross-sectional area of TSS to that of the poststenotic segment might be a more efficient method for predicting the TPG.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10511954 | PMC |
| http://dx.doi.org/10.1136/jnis-2022-019270 | DOI Listing |
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