![]() The medical records of all dogs presenting between April 2013 and May 2015 were reviewed. Consequently, our study aimed to identify the appropriate MRI sequences to use in the assessment of dogs with TBI. The aims of this study were 1) to describe conventional MRI and SWI results for TBI lesion evaluation, and 2) to determine correlations between clinical status and conventional MRI or SWI results. ![]() However, to the best of the authors' knowledge, there are no reports on the use of SWI in dogs with TBI or on comparisons of conventional MRI and SWI, even though the use of SWI has been apparently increasing. In veterinary medicine, there is a study elucidating the correlation between conventional MRI results and clinical status or prognosis in dogs with TBI. Previous studies have reported that this new sequence type is more sensitive in detecting traumatic lesions than CT or conventional MRI, especially in cases involving cerebral microbleeds. Susceptibility-weighted imaging (SWI), a relatively new MRI sequence, has recently gained prominence due to the increasing need for accurate diagnosis in TBI patients. However, in the subacute and chronic phase of TBI, MRI is preferred over CT because of its superiority in detecting non-hemorrhagic lesions, brainstem injury, edema, and diffuse axonal injury. In human medicine, CT is the modality of initial choice for acute TBI patients because it is a rapid, widely available, and highly accurate method for the detection of intracranial hemorrhage or skull fracture. Diagnostic imaging modalities such as computed tomography (CT) and magnetic resonance imaging (MRI) are widely used in TBI patients because they can identify treatable injuries to prevent secondary damage and provide useful prognostic information. Since accurate assessment of TBI patient can facilitate appropriate treatment and yield better outcomes with prognostic information, various clinical assessment methods for TBI have been studied in humans and dogs. Traumatic brain injury (TBI) is one of the most common neurological conditions and is associated with mortality in dogs. Thus, a combination of conventional MRI and SWI examinations can improve TBI diagnosis in dogs. In conclusion, SWI had better TBI lesion-detection ability, but conventional MRI had a better correlation with early clinical status and subdural hemorrhage. The MRGr of the conventional MRI assessments and the MGCS scores showed a significant negative correlation ( r = −0.685). The median MRGr was 2 on both conventional MRI and SWI. SWI showed comparable findings for all of the lesions except for subdural hemorrhage, and it revealed additional lesions in four dogs. Conventional MRI revealed 23 lesions in 11 dogs with variable MGCS scores (range: 11–17). The modified Glasgow coma scale (MGCS) at presentation and a previously used MRI grading system (MRGr grades 1–6) were used to evaluate the brain lesions, and correlations between MGCS score and each MRGr were assessed. We aimed to evaluate TBI lesions by using conventional MRI and SWI in 11 dogs and determine the correlation between clinical status and conventional MRI or SWI findings. Although SWI is being increasingly used in veterinary medicine, there are no systematic studies regarding its use. doi:10.1371/-weighted imaging (SWI) is a magnetic resonance imaging (MRI) sequence used for evaluating traumatic brain injury (TBI). Mild traumatic brain injury (mTBI) and chronic cognitive impairment: A scoping review. McInnes K, Friesen CL, Mackenzie DE, Westwood DA, Boe SG. Discussing sexual health after traumatic brain injury: an unmet need!. Interventions for managing skeletal muscle spasticity following traumatic brain injury. Traumatic brain injury-induced sleep disorders. ![]() Assessing connectivity related injury burden in diffuse traumatic brain injury. Traumatic alterations in consciousness: traumatic brain injury. Traumatic brain injury: current treatment strategies and future endeavors. Galgano M, Toshkezi G, Qiu X, Russell T, Chin L, Zhao LR.
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