Ruth T Dennis

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A cadaver limb from an eight-year-old horse with right forelimb lameness that was relieved with an intra-articular distal interphalangeal joint block was imaged with radiographs, spiral computed tomography (CT) and magnetic resonance imaging (MRI). Spiral CT demonstrated several lucencies within the deep digital flexor tendon immediately proximal to the(More)
Syringohydromyelia secondary to foramen magnum overcrowding is described in seven Cavalier King Charles spaniels. Clinical signs were consistent with a central spinal cord lesion. The most common signs were persistent scratching at the shoulder region with apparent neck, thoracic limb, or ear pain and thoracic limb lower motor neuron deficits. The diagnosis(More)
OBJECTIVE To assess associations of severity of neurologic signs (neurologic score), involvement of an intumescence, and findings of magnetic resonance imaging (MRI) with interval to recovery and outcome in dogs with presumptive acute noncompressive nucleus pulposus extrusions. DESIGN Retrospective case series. ANIMALS 42 dogs with presumptive acute(More)
This retrospective study evaluated the magnetic resonance (mr) images of traumatic disc extrusions in 11 dogs. The findings included a reduction in the volume and signal intensity of the nucleus pulposus, focal hyperintensity within the overlying spinal cord on T (2)-weighted mr images, and subtle spinal cord compression, extraneous material or signal(More)
There are few reports of radiation treatment for brain tumors in dogs, and the optimal treatment protocol has yet to be established. We completed a retrospective analysis of the survival times of a series of 83 dogs with intracranial masses that were treated by hypofractionated megavoltage radiation therapy. A total tumor dose of 38 Gray was given over 5(More)
OBJECTIVE To present the clinical and magnetic resonance imaging (MRI) characteristics of sphenoid bone osteomyelitis. PROCEDURES Two dogs (English Springer Spaniel--ESS, Golden Retriever--GR) and one cat (Domestic Long Haired) were presented with a 2-14-day history of visual deficits and reduced pupillary light reflexes. Investigations included physical,(More)
OBJECTIVES To investigate the correlation between the magnetic resonance imaging findings and subsequent surgical findings for a series of dogs presenting with suspected pharyngeal stick injuries to the Animal Health Trust, Newmarket, between 1995 and 2004. METHODS Magnetic resonance imaging findings were reviewed for patients undergoing a scan of the(More)
OBJECTIVE To determine results of magnetic resonance (MR) imaging in dogs with vestibular disorders (VD) and correlate results of MR imaging with clinical findings. DESIGN Retrospective study. ANIMALS 85 dogs. PROCEDURE Information on signalment, clinical signs, and presumptive lesion location was obtained from the medical records, and MR images were(More)
OBJECTIVE To describe clinical and magnetic resonance imaging features in dogs with compressive cervical myelopathy due to acute suspected hydrated nucleus pulposus extrusion. DESIGN Retrospective case series. ANIMALS Ten dogs with compressive cervical myelopathy caused by acute suspected hydrated nucleus pulposus extrusion. MATERIALS AND METHODS(More)
  • Ruth Dennis
  • 2011
Magnetic resonance (MR) imaging is generally considered to be the best imaging modality for the spine because of its excellent tissue contrast and multiplanar imaging capability; however, good technique is vital in order to avoid nondiagnostic or even misleading images. The possibility of imaging in multiple planes and using many different pulse sequences(More)