A three-dimensional digital neurological atlas of the mustached bat (Pteronotus parnellii).
*Atlases as Topic; Animals; Auditory Cortex/anatomy & histology/diagnostic imaging; Brain Stem/anatomy & histology/diagnostic imaging; Brain/*anatomy & histology/diagnostic imaging; Chiroptera/*anatomy & histology; Diffusion Tensor Imaging/methods; Imaging; Magnetic Resonance Imaging/*methods; Male; Skull/anatomy & histology/diagnostic imaging; Three-Dimensional/*methods; Tomography; X-Ray Computed/*methods
Substantial knowledge of auditory processing within mammalian nervous systems emerged from neurophysiological studies of the mustached bat (Pteronotus parnellii). This highly social and vocal species retrieves precise information about the velocity and range of its targets through echolocation. Such high acoustic processing demands were likely the evolutionary pressures driving the over-development at peripheral (cochlea), metencephalic (cochlear nucleus), mesencephalic (inferior colliculus), diencephalic (medial geniculate body of the thalamus), and telencephalic (auditory cortex) auditory processing levels in this species. Auditory researchers stand to benefit from a three dimensional brain atlas of this species, due to its considerable contribution to auditory neuroscience. Our MRI-based atlas was generated from 2 sets of image data of an ex-vivo male mustached bat's brain: a detailed 3D-T2-weighted-RARE scan [(59x63 x 85) mum(3)] and track density images based on super resolution diffusion tensor images [(78) mum(3)] reconstructed from a set of low resolution diffusion weighted images using Super-Resolution-Reconstruction (SRR). By surface-rendering these delineations and extrapolating from cortical landmarks and data from previous studies, we generated overlays that estimate the locations of classic functional subregions within mustached bat auditory cortex. This atlas is freely available from our website and can simplify future electrophysiological, microinjection, and neuroimaging studies in this and related species.
Washington Stuart D; Hamaide Julie; Jeurissen Ben; van Steenkiste Gwendolyn; Huysmans Toon; Sijbers Jan; Deleye Steven; Kanwal Jagmeet S; De Groof Geert; Liang Sayuan; Van Audekerke Johan; Wenstrup Jeffrey J; Van der Linden Annemie; Radtke-Schuller Susanne; Verhoye Marleen
NeuroImage
2018
2018-12
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
<a href="http://doi.org/10.1016/j.neuroimage.2018.08.013" target="_blank" rel="noreferrer noopener">10.1016/j.neuroimage.2018.08.013</a>
Incidental findings in the cervical spine at CT for trauma evaluation.
Adult; Female; Humans; Male; Middle Aged; Adolescent; Aged; Retrospective Studies; Registries; Incidental Findings; Injury Severity Score; Length of Stay/statistics & numerical data; Data Collection; Tomography; Human; Middle Age; Adolescence; Retrospective Design; Diagnosis; Cervical Vertebrae/*diagnostic imaging/*injuries; Spinal Injuries/*diagnostic imaging; 80 and over; X-Ray Computed/*methods; Nonparametric; Statistics; Nonparametric Statistics; Trauma Severity Indices; 80 and Over; Length of Stay – Statistics and Numerical Data; X-Ray Computed – Methods; Cervical Vertebrae – Injuries; Cervical Vertebrae – Radiography; Spinal Injuries – Radiography
OBJECTIVE: CT is the standard of care for assessment of traumatic injuries. Because of the detail depicted with this technique, findings incidental to the injury are easily detected. We sought to determine the frequency and types of incidental findings in the cervical spines of trauma patients undergoing CT. MATERIALS AND METHODS: The trauma registry was accessed to identify the cases of patients evaluated with cervical spine CT at a level 1 trauma center from January to July 2007. Trauma registry data, including age, sex, injury severity score, mechanism of injury, length of stay, and diagnosis were recorded, and all CT scans of the cervical spine were reviewed for incidental findings. Clinically significant incidental findings were classified according to bodily location, and the association between various patient characteristics and the likelihood of an incidental finding was assessed. RESULTS: We identified incidental CT findings in 230 of 1,256 patients (18.3%) who underwent CT of the cervical spine during an initial trauma evaluation. We stratified the incidental findings as trauma-related and not trauma-related. The likelihood of non-trauma-related incidental findings was associated with age (p \textless 0.0001). The likelihood of trauma-related incidental findings was associated with injury severity score (p \textless 0.0001). CONCLUSION: Incidental findings in the cervical spine were associated with age, injury severity score, and mechanism of injury. Awareness of the prevalence of incidental findings is important to assuring that both traumatic and nontraumatic pathologic findings are detected and appropriately managed.
Barboza Richard; Fox Jason H; Shaffer Lynn E T; Opalek Judy M; Farooki Shella
AJR. American journal of roentgenology
2009
2009-03
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
<a href="http://doi.org/10.2214/AJR.08.1420" target="_blank" rel="noreferrer noopener">10.2214/AJR.08.1420</a>
Sinus CT scan findings in "sinus headache" migraineurs.
Evaluation Studies as Topic; Humans; Migraine Disorders/complications/*radiotherapy; Paranasal Sinus Diseases/complications/diagnostic imaging; Paranasal Sinuses/abnormalities/*diagnostic imaging; Prospective Studies; Severity of Illness Index; Tomography; X-Ray Computed/*methods
OBJECTIVE: To evaluate the sinus CT scan findings in "sinus headache" migraineurs, and to compare the findings to nonmigraine "sinus headache" patients. BACKGROUND: The majority of patients presenting with "sinus headache" satisfy the International Headache Society (IHS) criteria for migraine headache. Few studies have correlated the rhinologic complaints and computed tomography (CT) findings in these patients. METHODS: Thirty-five patients with "sinus headache" were evaluated prospectively and referred for CT of the paranasal sinuses. The CT scans were assessed for sinus abnormality (recorded as a Lund-Mackay [L-M] score) and were analyzed for concha bullosa and septal deviation. The findings in the migraine cohort were compared with the nonmigraine "sinus headache" patients. FINDINGS: Twenty-six patients (74.3%) satisfied the IHS criteria for migraine. The mean CT scan L-M score did not differ significantly between the migraine (2.07) and nonmigraine cohort (2.66). Five of the migraine group had substantial sinus disease radiographically (with L-M scores of 5 or above). Concha bullosa of at least 1 middle turbinate was more common in the nonmigraine cohort. An analysis of the sidedness of the headaches, sinus disease, concha bullosa, and/or septal deviation is presented. CONCLUSIONS: The majority of "sinus headache" patients satisfy the IHS criteria for migraine. Surprisingly, these patients often have radiographic sinus disease. This raises the possibility of selection bias in otolaryngology patients, inaccurate diagnosis, or radiographic sinus disease and migraine as comorbid conditions. Positive migraine histories apparently do not obviate the need for a thorough ENT workup, possibly including CT scanning.
Mehle Mark E; Kremer Patricia S
Headache
2008
2008-01
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
<a href="http://doi.org/10.1111/j.1526-4610.2007.00811.x" target="_blank" rel="noreferrer noopener">10.1111/j.1526-4610.2007.00811.x</a>