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Estimation of Venous Sinus Pressure Drop in Patients with Idiopathic Intracranial Hypertension Using 4D-flow MRI

Overview
Journal Eur Radiol
Specialty Radiology
Date 2022 Oct 26
PMID 36287270
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Abstract

Objective: We aimed to explore a non-invasive estimate of pressure drop in patients who undergo venous sinus stenting to treat idiopathic intracranial hypertension (IIH).

Methods: This prospective study included 28 IIH patients scheduled for venous stenting. 4D-flow MRI was acquired 24-48 h before venous manometry. Manometry-obtained pressure drop (Mp) was dichotomized into low (Lp: 0-8 mmHg) and high (Hp: 8-30 mmHg) groups. Hemodynamic indices were compared between Lp and Hp. Trans-stenotic pressure drop was estimated by work-energy equation, simplified Bernoulli equation, vorticity magnitude, and velocity difference between inlet and outlet and was compared with Mp. Measurement agreement, correlation, and accuracy were evaluated using the κ coefficient, Pearson's r, and confusion matrix-derived accuracy.

Results: Among 28 patients (mean age 38.8 ± 12.7), 19 (67.9%) were female. Work-energy equation-estimated pressure drop (WEp) had strong correlation (r = 0.91, 95% confidence interval [CI]: 0.81-0.96, p < 0.001) and high agreement (intraclass correlation coefficient = 0.90, 95% CI: 0.78-0.95, p < 0.001) with Mp. WEp classified Lp and Hp with an accuracy of 0.96. The κ value between WEp and Mp was 0.92 (95% CI: 0.78-1.00). In the work-energy equation, the viscosity energy term (V) had the largest weights, and the ratio of V to the summation of the three energy terms was 0.93 ± 0.07. V had strong correlation with mVort (r = 0.93, 95% CI: 0.85-0.97, p < 0.001), and mean vorticity magnitude was significantly elevated in Hp compared to that in Lp (259.8 vs. 174.9 mL/s, p < 0.001).

Conclusion: Trans-stenotic pressure drop in IIH can be estimated using the work-energy equation with favorable accuracy.

Key Points: • Trans-stenotic pressure drop in patients with idiopathic intracranial hypertension can be estimated accurately with the work-energy equation using the 4D-flow MRI full velocity field. • Compared with traditional venous sinus manometry, the 4D-flow MRI-derived pressure drop is totally non-invasive and cost-saving. • 4D-flow MRI may help neurointerventionalist to select IIH patients suitable for venous sinus stenting.

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References
1.
King J, Mitchell P, Thomson K, Tress B . Manometry combined with cervical puncture in idiopathic intracranial hypertension. Neurology. 2002; 58(1):26-30. DOI: 10.1212/wnl.58.1.26. View

2.
Liu K, Starke R, Durst C, Wang T, Ding D, Crowley R . Venous sinus stenting for reduction of intracranial pressure in IIH: a prospective pilot study. J Neurosurg. 2016; 127(5):1126-1133. DOI: 10.3171/2016.8.JNS16879. View

3.
Patsalides A, Oliveira C, Wilcox J, Brown K, Grover K, Gobin Y . Venous sinus stenting lowers the intracranial pressure in patients with idiopathic intracranial hypertension. J Neurointerv Surg. 2018; 11(2):175-178. PMC: 6582809. DOI: 10.1136/neurintsurg-2018-014032. View

4.
Raynald , Huo X, Yang H, Wang Z, Tong X, Li X . Characteristics and Outcomes of the Idiopathic Intracranial Hypertension Treatment in Intrinsic and Extrinsic Stenosis: A Single-Center Experience in China. Neurol Ther. 2021; 10(2):1029-1044. PMC: 8571462. DOI: 10.1007/s40120-021-00281-0. View

5.
Nicholson P, Brinjikji W, Radovanovic I, Hilditch C, Tsang A, Krings T . Venous sinus stenting for idiopathic intracranial hypertension: a systematic review and meta-analysis. J Neurointerv Surg. 2018; 11(4):380-385. DOI: 10.1136/neurintsurg-2018-014172. View