Diffusion weighted magnetic resonance imaging for acute stroke: practical and popular

Area of Science:

• Neurology
• Radiology
• Medical Imaging

Background:

• Stroke diagnosis relies heavily on timely and accurate neuroimaging.
• District general hospitals face challenges in implementing advanced imaging techniques.
• Diffusion weighted magnetic resonance imaging (DW MRI) offers high sensitivity for acute stroke detection.

Purpose of the Study:

• To assess the feasibility and impact of using DW MRI as the primary neuroimaging modality for suspected stroke.
• To evaluate the integration of DW MRI into routine clinical practice at a district general hospital.

Main Methods:

• Prospective audit of 148 patients with suspected acute stroke over 17 weeks.
• Data collection included scan type, time to imaging, and clinician perceptions via questionnaire.
• DW MRI was implemented as the first-line neuroimaging technique.

Main Results:

• 81% of patients (120/148) received DW MRI as their initial neuroimaging.
• 92% of DW MRI scans were performed within 24 hours of the request.
• DW MRI was not performed in 28 patients due to safety, clinical status, or resource limitations.

Conclusions:

• DW MRI is a feasible and sustainable stroke imaging service in district general hospitals.
• Clinicians reported DW MRI as a significant improvement compared to computed tomography, particularly for ambiguous cases.
• The implementation enhances stroke diagnostic capabilities in community settings.