Portable, low-field MRI device can be safely used at patient
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A portable, low-field magnetic resonance imaging (MRI) device can be safely used at bedside in complex clinical care settings to evaluate critically-ill patients for suspected stroke, traumatic brain injury (TBI), or other neurological problems, results of a proof-of-concept study show.

This was a prospective, single-center cohort study of 50 patients admitted to the neuroscience or COVID-19 intensive care units at Yale New Haven Hospital in New Haven. Patients were eligible if they presented with neurological injury or alteration, no contraindications for conventional MRI, and a body habitus not exceeding the scanner’s 30-cm vertical opening. Diagnosis of COVID-19 was determined by positive PCR nasopharyngeal swab result.

Results:
-- Point-of-care MRI examinations were performed on 50 patients.
-- Patients presented with ischemic stroke, hemorrhagic stroke, subarachnoid hemorrhage, traumatic brain injury, brain tumor and COVID-19 with altered mental status.
-- Examinations were acquired at a median of 5 days after ICU admission.
-- Diagnostic-grade T1-weighted, T2-weighted, T2 fluid-attenuated inversion recovery, and diffusion-weighted imaging sequences were obtained for 37, 48, 45, and 32 patients, respectively.
-- Neuroimaging findings were detected in 29 of 30 patients who did not have COVID-19, and 8 of 20 patients with COVID-19 demonstrated abnormalities.
-- There were no adverse events or complications during deployment of the portable MRI or scanning in an intensive care unit room.

Conclusively, This single-center series of patients with critical illness in an intensive care setting demonstrated the feasibility of low-field, portable MRI. These findings demonstrate the potential role of portable MRI to obtain neuroimaging in complex clinical care settings.

Source: https://jamanetwork.com/journals/jamaneurology/fullarticle/2769858
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