Garosi L S, Dennis R, Penderis J, Lamb C R, Targett M P, Cappello R, Delauche A J
Centre for Small Animal Studies, Animal Health Trust, Kentford, Suffolk, England.
J Am Vet Med Assoc. 2001 Feb 1;218(3):385-91. doi: 10.2460/javma.2001.218.385.
To determine results of magnetic resonance (MR) imaging in dogs with vestibular disorders (VD) and correlate results of MR imaging with clinical findings.
Retrospective study.
85 dogs.
Information on signalment, clinical signs, and presumptive lesion location was obtained from the medical records, and MR images were reviewed.
27 dogs had peripheral VD, 37 had central VD, and 21 had paradoxical VD. Of the 27 dogs with peripheral VD, 11 (41%) had MR imaging abnormalities involving the ipsilateral tympanic bulla compatible with otitis media (6 also had abnormalities involving the petrous portion of the ipsilateral temporal bone compatible with otitis interna), 7 (26%) had MR imaging abnormalities compatible with middle ear neoplasia, 2(7%) had an ipsilateral cerebellopontine angle lesion, and 7 (26%) did not have MR imaging abnormalities. All dogs with central and paradoxical VD had abnormalities evident on MR images. Of the 37 dogs with central VD, 13 (35%) had an extra-axial lesion, 6 (16%) had an intra-axial lesion, and 18 (49%) had multiple intra-axial lesions. In 23 (62%) dogs with central VD, lesions on MR images corresponded with location suspected on the basis of clinical signs. Of the 21 dogs with paradoxical VD, 12 (57%) had an extra-axial lesion, 5 (24%) had an intra-axial lesion, and 4 (19%) had multiple intra-axial lesions. Location of lesions on MR images agreed with location suspected on the basis of clinical signs in 19 (90%) dogs.
Results suggest that MR imaging may be helpful in the diagnosis and treatment of VD in dogs.
确定患有前庭疾病（VD）的犬只的磁共振（MR）成像结果，并将MR成像结果与临床发现相关联。
回顾性研究。
85只犬。
从病历中获取有关信号、临床症状和推测病变位置的信息，并对MR图像进行回顾。
27只犬患有外周性VD，37只患有中枢性VD，21只患有矛盾性VD。在27只患有外周性VD的犬中，11只（41%）的MR成像异常累及同侧鼓泡，符合中耳炎（6只还伴有累及同侧颞骨岩部的异常，符合内耳炎），7只（26%）的MR成像异常符合中耳肿瘤，2只（7%）有同侧桥小脑角病变，7只（26%）没有MR成像异常。所有患有中枢性和矛盾性VD的犬在MR图像上均有明显异常。在37只患有中枢性VD的犬中，13只（35%）有轴外病变，6只（16%）有轴内病变，18只（49%）有多个轴内病变。在23只（62%）患有中枢性VD的犬中，MR图像上的病变与根据临床症状怀疑的位置相符。在21只患有矛盾性VD的犬中，12只（57%）有轴外病变，5只（24%）有轴内病变，4只（19%）有多个轴内病变。在19只（90%）犬中，MR图像上的病变位置与根据临床症状怀疑的位置一致。
结果表明，MR成像可能有助于犬VD的诊断和治疗。
