2026-10-12T04:33:27Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33667694 2026-09-12T12:24:19Z category_146 category_915 category_7 category_12 category_15 category_16 category_734 portal_87 item_type_3 month_year_09_2026

Evaluation of a 0.05 T low-field MRI system for canine brain imaging via comparison with images acquired at 1.5 T field strength: a pilot cadaver study Elisabeth Maria Burgers (24391406) Samantha Miles (21755583) Stefanie Veraa (24391415) Thomas O'Reilly (651385) Ruben van den Broek (24391409) Chloé Najac (10650668) Beatrice Lena (11781076) Andrew Webb (464690) Space Science Physical Sciences not elsewhere classified Medicine Cell Biology Neuroscience Physiology Biological Sciences not elsewhere classified Canine neuroimaging low field magnetic resonance imaging image contrast hydrocephalus one health sustainable imaging permanent magnets Halbach array <p>Magnetic resonance imaging (MRI) systems continue to grow in number in veterinary and human medicine with higher field strength magnets increasingly available; however, the associated high costs have created healthcare inequities. This technical feasibility study aimed to evaluate a low-cost, portable, and permanent magnet-based 0.05 T low-field system (LF), originally designed for human neuroimaging, for assessing the canine brain. By using 23 canine cadavers, a scanning protocol was developed, consisting of transverse T1-weighted (T1w) and T2-weighted (T2w) sequences, and compared to a 1.5 T (HF) protocol for the visibility of 22 anatomical features. For the purpose of hydrocephalus evaluation, the LF system showed non-inferior detection of the lateral ventricles (LV) and mesencephalic aqueduct on T2w sequences with >90% conditional probability for detecting these features on the LF, given they were present on the HF. For T1w sequences, the LF system had inconclusive non-inferiority for detection of LV with 76.6% conditional probability. In summary, a canine brain scanning protocol was successfully developed for a 0.05 T MRI with preliminary evaluation suggestive that this device can aid with the detection of hydrocephalus. Future <i>in vivo</i> studies are required to evaluate the device's true clinical application.</p> 2026-09-12T12:24:19Z Dataset Dataset 10.6084/m9.figshare.33667694.v1 https://figshare.com/articles/dataset/Evaluation_of_a_0_05_T_low-field_MRI_system_for_canine_brain_imaging_via_comparison_with_images_acquired_at_1_5_T_field_strength_a_pilot_cadaver_study/33667694 CC BY 4.0