Le syndrome podotrochléaire - Avancées des connaissances grâces aux techniques d'imagerie médicale

Conference given outside the academic context (2010)

Ultrasound of the equine abdomen An overview of where we are and what are future developments

Conference (2010, July)

Qualitative comparison of 0.27T, 1.5T and 3T Magnetic Resonance Images of the normal equine foot.

in Journal of Equine Veterinary Science (2010), 30(1), 9-20

Magnetic resonance (MR) imaging has become an important diagnostic tool in the investigation of foot pain in horses. The aim of this study was to qualitatively compare ex-vivo MR images of the same equine ... [more ▼]

Magnetic resonance (MR) imaging has become an important diagnostic tool in the investigation of foot pain in horses. The aim of this study was to qualitatively compare ex-vivo MR images of the same equine feet obtained at three magnetic field strengths: 0.27, 1.5, and 3 tesla (T). Ten cadaver feet were used. All feet were imaged with two high-field (HF) systems (3T, 1.5T) and with a low-field (LF) system at 0.27T designed for standing horses. Images were acquired using similar pulse sequences in all 3 MR units. MR images were subjectively evaluated by three independent experienced image analysts for image quality and clarity of visualization of individual anatomical structures using a four-point grading scale. The images from all of the examinations were considered to be of diagnostic value except for the hoof capsule where substantial artifacts were present in LF images with distortion and loss of signal at the dorsal/distal aspect of the hoof capsule in LF images. Anatomical structure scoring values of images obtained at 3T and 1.5T were significantly greater than scores of images obtained at 0.27T. Scores for images obtained at 3T were significantly higher than those for images obtained at 1.5T. Mean score differences between 1.5T and 3T were higher for cartilage of the distal interphalangeal joint and for the ungular cartilages. [less ▲]

Magnetic resonance signal changes during time in equine limbs refrigerated at 4 degrees C.

in Veterinary Radiology & Ultrasound (2010), 51(1), 19-24

When ex vivo magnetic resonance (MR) imaging studies are undertaken, specimen conservation should be taken into account when interpreting MR imaging results. The purpose of this study was to assess MR ... [more ▼]

When ex vivo magnetic resonance (MR) imaging studies are undertaken, specimen conservation should be taken into account when interpreting MR imaging results. The purpose of this study was to assess MR changes during time in the anatomic structures of the equine digit on eight cadaver limbs stored at 4 degrees C. The digits were imaged within 12 h after death and then after 1, 2, 7, and 14 days of refrigeration. After the last examination, four feet were warmed at room temperature for 24 h and reimaged. Sequences used were turbo spin echo (TSE) T1, TSE T2, short tau inversion recovery (STIR), and double-echo steady state (DESS). Images obtained were compared subjectively side by side for image quality and signal changes. Signal-to-noise ratio (SNR) was measured and compared between examinations. There were no subjective changes in image quality. A mild size reduction of the synovial recesses was detected subjectively. No signal change was seen subjectively except for bone marrow that appeared slightly hyperintense in STIR and slightly hypointense in TSE T2 sequence after refrigeration compared with day 0. Using quantitative analysis, significant SNR changes in bone marrow of refrigerated limbs compared with day 0 were detected in STIR and TSE T2 sequences. Warming at room temperature for 24 h produced a reverse effect on SNR compared with refrigeration with a significant increase in SNR in TSE T2 images. After 14 days of refrigeration a statistically significant decrease of SNR was found in bone marrow in TSE T2 and DESS sequences. The SNR in the deep digital flexor tendon was not characterized by significant change in SNR. [less ▲]

Radiographic features of the dorsal condylar sagittal ridge of the third metacarpal and metatarsal bones in young Warmblood stallions.

in Veterinary and Comparative Orthopaedics and Traumatology (2010), 23(6), 411-416

Echographie du cheval en colique

in AVEF Proceedings (2010)

Ultrasonographic percutaneous anatomy of the caudal lumbar region and ultrasound-guided lumbar puncture in the dog.

in Veterinary Radiology & Ultrasound (2010), 51(5), 527-532

Normal anatomy and anatomical pitfalls of the distal extremity of the horse with Multi Detector Computed Tomography (MDCT)

in European Veterinary Conference De Voorjaarsdagen Proceedings (2010)

Les tendinopathies et desmopathies de la région métacarpienne et –tarsienne: une revue des thérapies actuelles. Première partie : la structure, les lésions du tendon et le diagnostic.

in Annales de Médecine Vétérinaire (2009), 3(153), 145-155

Lesions to the horse’s tendon are very frequent and are a non negligible reason for early retirement of sport and leisure horses. For decades man has been searching for “the” treatment but unfortunately ... [more ▼]

Lesions to the horse’s tendon are very frequent and are a non negligible reason for early retirement of sport and leisure horses. For decades man has been searching for “the” treatment but unfortunately most of the known treatments have empiric bases and very few have actually proven their real efficiency. Better knowledge of tendon anatomy and pathophysiology of tendonitis together with evolutions in diagnostic techniques like ultrasonography allows us to better evaluate the improvements made in tendonitis therapies today. The first part of this article gives a review on tendon structure, tendon healing and ultrasonographic evaluation of the tendon. In the second part an overview of therapeutic options for tendonitis will be discussed. [less ▲]

A case of a periarticular abscess and suppurative arthritis of the atlanto-occipital joint

in Equine Veterinary Education (2009), 21(7), 340-343

This case report describes a periarticular abscess and a suppurative arthritis of the atlanto-occipital joint in an adult horse. The horse showed a painful swelling localized on the atlanto-occipital ... [more ▼]

This case report describes a periarticular abscess and a suppurative arthritis of the atlanto-occipital joint in an adult horse. The horse showed a painful swelling localized on the atlanto-occipital region and ataxia in all four limbs. During his hospitalization the horse developed recumbency, dysphagia, facial paralysis and seizures. With the use of ultrasonography of the atlanto-occipital region a tentative diagnosis was made which was later confirmed by autopsy. Culture of the abscess revealed a Staphylococcus aureus. However, the horse had a history of recurrent fever, hypertrophy and abcessation of the submandibular lymph nodes, neck pain and dyspnoea for 2 months, suggestive for strangles. [less ▲]