Cerebrospinal fluid analysis and magnetic resonance imaging in the diagnosis of neurologic disease in dogs: a retrospective study Export

@article{citeulike:6032315, abstract = {Background: Diagnosis of central nervous system (CNS) abnormalities in dogs can be challenging antemortem. Historically, cerebrospinal fluid (CSF) analysis has been used for routine diagnostic evaluation of animals with suspected neurologic disease; however, with increasing availability of magnetic resonance (MR) imaging, the need for concurrent CSF analysis may be questioned. Objective: The purpose of this study was to retrospectively assess and compare the diagnostic information contributed from MR imaging and CSF analysis in a population of dogs presenting with neurologic disease. Methods: Results of concurrent MR imaging and CSF analysis were evaluated in dogs presented for neurologic diseases. Based on clinical diagnosis, the sensitivity of CSF analysis and MR imaging for detecting a nervous system abnormality was calculated. Dogs with diagnoses confirmed by other diagnostic modalities were also evaluated separately. Results: A total of 256 dogs were included in the study. For clinical diagnoses in which abnormalities were expected, MR imaging abnormalities were found in 89\% and CSF abnormalities in 75\% of dogs; CSF abnormalities were more common than MR imaging abnormalities only in inflammatory CNS disease. The majority of CSF abnormalities were nonspecific; an etiologic diagnosis was determined in only 2\% of CSF samples. MR imaging excelled in detecting structural disorders, revealing 98\% of vertebral abnormalities. In confirmed cases (n=55), 76\% of MR images and 9\% of CSF samples were diagnostic. When intervertebral disk disease (IVDD) and vertebral malformation were excluded from analysis (n=16 remaining), 25\% of MR images and 6\% of CSF cytology results were highly indicative of the confirmed diagnoses; CSF titer results provided the diagnosis in 25\% of these cases. Conclusion: CSF analysis may not be necessary when MR findings of IVDD or vertebral malformation/instability are obvious; however, when the cause of neurologic disorder is uncertain, concurrent MR imaging and CSF analysis provides the greatest assistance in establishing a clinical diagnosis.}, address = {From the Department of Veterinary Clinical Sciences, Washington State University, College of Veterinary Medicine, Pullman, WA. Dr. Bohn now is at Colorado State University, Fort Collins, CO. Dr. West now is at The Animal Medical Center, New York, NY. This study was presented at the Annual Conference for Veterinarians and Veterinary Technicians, WSU College of Veterinary Medicine, Pullman, WA, April 17, 2005. Corresponding author: Dr. Andrea Bohn (andrea.bohn@colostate.edu)}, author = {Bohn, Andrea A. and Wills, Tamara B. and West, Chadwick L. and Tucker, Russell L. and Bagley, Rodney S.}, citeulike-article-id = {6032315}, citeulike-linkout-0 = {http://dx.doi.org/10.1111/j.1939-165X.2006.tb00138.x}, citeulike-linkout-1 = {http://www3.interscience.wiley.com/cgi-bin/abstract/120177580/ABSTRACT}, doi = {10.1111/j.1939-165X.2006.tb00138.x}, issn = {1939-165X}, journal = {Veterinary Clinical Pathology}, keywords = {csf, meningoencephalitis, mri}, number = {3}, pages = {315--320}, posted-at = {2009-10-29 14:35:59}, priority = {2}, title = {Cerebrospinal fluid analysis and magnetic resonance imaging in the diagnosis of neurologic disease in dogs: a retrospective study}, url = {http://dx.doi.org/10.1111/j.1939-165X.2006.tb00138.x}, volume = {35}, year = {2006} }

TY - JOUR ID - citeulike:6032315 L3 - citeulike-article-id:6032315 N2 - Background: Diagnosis of central nervous system (CNS) abnormalities in dogs can be challenging antemortem. Historically, cerebrospinal fluid (CSF) analysis has been used for routine diagnostic evaluation of animals with suspected neurologic disease; however, with increasing availability of magnetic resonance (MR) imaging, the need for concurrent CSF analysis may be questioned. Objective: The purpose of this study was to retrospectively assess and compare the diagnostic information contributed from MR imaging and CSF analysis in a population of dogs presenting with neurologic disease. Methods: Results of concurrent MR imaging and CSF analysis were evaluated in dogs presented for neurologic diseases. Based on clinical diagnosis, the sensitivity of CSF analysis and MR imaging for detecting a nervous system abnormality was calculated. Dogs with diagnoses confirmed by other diagnostic modalities were also evaluated separately. Results: A total of 256 dogs were included in the study. For clinical diagnoses in which abnormalities were expected, MR imaging abnormalities were found in 89% and CSF abnormalities in 75% of dogs; CSF abnormalities were more common than MR imaging abnormalities only in inflammatory CNS disease. The majority of CSF abnormalities were nonspecific; an etiologic diagnosis was determined in only 2% of CSF samples. MR imaging excelled in detecting structural disorders, revealing 98% of vertebral abnormalities. In confirmed cases (n=55), 76% of MR images and 9% of CSF samples were diagnostic. When intervertebral disk disease (IVDD) and vertebral malformation were excluded from analysis (n=16 remaining), 25% of MR images and 6% of CSF cytology results were highly indicative of the confirmed diagnoses; CSF titer results provided the diagnosis in 25% of these cases. Conclusion: CSF analysis may not be necessary when MR findings of IVDD or vertebral malformation/instability are obvious; however, when the cause of neurologic disorder is uncertain, concurrent MR imaging and CSF analysis provides the greatest assistance in establishing a clinical diagnosis. IS - 3 JF - Veterinary Clinical Pathology SN - 1939-165X AD - From the Department of Veterinary Clinical Sciences, Washington State University, College of Veterinary Medicine, Pullman, WA. Dr. Bohn now is at Colorado State University, Fort Collins, CO. Dr. West now is at The Animal Medical Center, New York, NY. This study was presented at the Annual Conference for Veterinarians and Veterinary Technicians, WSU College of Veterinary Medicine, Pullman, WA, April 17, 2005. Corresponding author: Dr. Andrea Bohn (andrea.bohn@colostate.edu) EP - 320 TI - Cerebrospinal fluid analysis and magnetic resonance imaging in the diagnosis of neurologic disease in dogs: a retrospective study VL - 35 SP - 315 KW - csf KW - meningoencephalitis KW - mri AU - Bohn, Andrea AU - Wills, Tamara AU - West, Chadwick AU - Tucker, Russell AU - Bagley, Rodney PY - 2006/// UR - http://dx.doi.org/10.1111/j.1939-165X.2006.tb00138.x ER -