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Susceptibility Weighted Imaging for Detection of Thrombus in Acute Ischemic Stroke.

NCT05738070 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 105

Last updated 2023-02-21

No results posted yet for this study

Summary

It is a retrospective cross-sectional study, where consecutive stroke patients with vessel occlusion on magnetic resonance angiography (MRA) will be included for the study for one year. The relation of Susceptibility vascular sign (SVS) on Susceptibility Weighted Imaging (SWI) with risk factors and territory involved and length of thrombus will correlated with the National Institutes of Health stroke scale (NIHSS).Among total number of patients included in this study the demographics of the patients will be calculated. Risk factors for stroke of the patients included in this study will tabulated. The site of occlusion will be tabulated. The mean NIHSS scale will be calculated. Presence of SVS in patients with MR angiography positive vessel occlusion will be calculate in percentage. Subgroup analysis of presence of SVS on SWI will be done. The mean length of the thrombus will be calculated in these patients with positive SVS.

Correlation between SVS on SWI with the risk factor of the patient by using the chi-square test will be calculated. A Chi-square test will be done to find out the correlation between the SVS with territorial occlusion. The correlation between the NIHSS score and length of thrombus will be calculated using the Pearson test.

SWI can be useful in identifying the location of the thrombus, and NIHSS can determine the thrombus length in acute stroke. A higher incidence of SVS can be associated with risk factors and it also depends upon the site of occlusion of the vessel.

Conditions

  • Acute Ischemic Stroke

Interventions

DIAGNOSTIC_TEST

Magnetic resonance imaging

MRI was done in 1.5T unit (Siemens, Magnetom, Essenza). Different parameters for SWI as follows at 1.5T: echo time (TE) = 40 ms, repetition time (TR) = 29 ms, slice thickness = 0.7 mm, flip angle = 25°, field of view (FOV) = 184 × 200, intersection gap = 0 mm, and matrix size = 322 × 225. MRA parameters were as follows: TR = 29 ms, TE = 7.15 ms, FOV = 168 × 200 mm, slice thickness = 0.7 mm, flip angle = 25°, with acquisition time of 3 minutes.

Sponsors & Collaborators

  • Upendra Devokta Memorial National Institute of Neurology and Allied Scicences

    lead OTHER

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-07-01
Primary Completion
2022-07-01
Completion
2022-12-20

Countries

  • Nepal

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05738070 on ClinicalTrials.gov