摘要:

This study consists of a review of 115 consecutively accrued bovine cranial abdomial radiographs. The sensitivity and specificity of radiography in detecting traumatic reticuloperitonitis or pericarditis was 83% and 90%, respectively. Increased reticular size was associated with vagal indigestion. Increased reticulo‐diaphragmatic separation did not correlate with a specific disease process, 25/35 (71%) cattle presented for radiographic examination with a 1 cm or longer metallic reticular foreign body unattached to a magnet had traumatic reticuloperitonitis. Standing lateral abdominal radiographs were determined to be a valuable tool in the diagnosis of cranial abdominal disorders in the bovin

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00101.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00102.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Congenital hypothyroidism was diagnosed in five Boxer dogs presented to the Veterinary Hospital of the University of Pennsylvania between 1978 and 1979. The dogs ranged in age from 5–19 months, and were from two unrelated litters. Congenital hypothyroidism was confirmed by serum T3 and T4 radioimmunoassay and TSH stimulation test. Serial radiographs made before and after L‐thyroxine oral supplementation were studied retrospectively to evaluate the resolution of skeletal abnormalities and to compare skeletal with chronological age. On initial presentation, all five dogs had the following skeletal manifestations of congenital hypothyroidism: short broad skulls, shortened vertebral bodies, and epiphyseal dysgenesis and delayed maturation. Epiphyseal dysgenesis was most common in the humeral (n = 3) and femoral condyles (n = 4), and proximal tibia (n = 4). Accelerated epiphyseal ossification occurred during thyroid hormone supplementation. Three dogs developed osteochondrosistype lesions. Bowing of the radius and disproportionate radius and ulna length resulted in humeroradial joint widening (n = 4) and humeroulnar joint subluxation (n = 1). Degenerative joint changes in the elbows (n = 4), stifles (n = 1), and shoulder (n = 1) were more common in the older d

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00103.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Clinical records, radiographs, and sonograms of 17 animals presented for possible cranial mediastinal disease were reviewed. Radiographs were evaluated for accuracy in detection of mediastinal masses. Sonography of the mediastinum was performed using a parasternal approach with the animals in sternal or lateral recumbency. The mediastinum was evaluated for the presence of a mass or other disease. Masses were characterized by echogenicity, size, number, and margination. Mediastinal vessels were studied to determine if there was vascular invasion or compression. A comparison of radiographic and sonographic assessment in cranial mediastinal disease indicates sonography adds valuable information in the diagnosis of mediastinal disease. Results of ultrasound‐guided, fine‐needle aspirate were documented and found to be advantageous in establishing a diagnosis in mediastinal mas

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00104.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

High‐resolution, real‐time ultrasonographic examinations of the neck were performed on eight normal dogs maintained under general anesthesia. Water‐soluble dye was injected into imaged structures under sonographic guidance in two dogs. The anatomy of the neck was verified at postmortem by visualization of dye deposited in the injected structures. Anatomical mapping was then completed by performing complete cervical ultrasound examinations in the remaining six dogs. Normal ultrasonographic anatomy of the canine neck and major anatomic landmarks useful in clinical imaging are desc

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00105.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

The shape of skeletal structures and their position relative to the x‐ray beam have a considerable effect on their radiographic appearance. Depending on the thickness of the cortical or subchondral bone, skeletal structures display the characteristics of either homogeneous or compound lamellar structures. Convex homogeneous structures are associated with a negative Mach line, and concave homogeneous structures are associated with a positive Mach line. Convex compound lamellar structures are associated with a negative Mach band and visualization of the lamina (subchondral or cortical bone) is reduced. Concave compound lamellar structures are associated with a positive Mach band and visualization of the lamina is enhanced. The combined effect of Mach phenomenon, shape, and thickness enhances visualization of some skeletal surfaces and make others imperceptible. These principles are very useful to correctly identify complex skeletal structures and avoid misinterpretation

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00106.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

The purposes of this study were: 1) to evaluate a barium (30%) and gelatin (4%) solution as an intravascular radiographic contrast medium when perfused into intact equine cadavers, 2) to determine the most appropriate skin site to harvest a flap with direct cutaneous vasculature, and 3) to identify potential recipent vessels for free‐flap transfer.Heparinized, aspirin‐treated horses were euthanatized, exsanguinated, and perfused with the contrast media. After 24 hours refrigeration, the cadvers were dissected and radiographed. The contrast medium remained solid for the duration of studies (approximately 4 hours), and provided excellent visualization of the arterial vasculature and smaller venous vessls, but did not adequately fill large veins. Due to its location and consistent vascular supply, the skin perfused by branches of the cudal superficial epigastric artery and vein is an appropriate skin‐flap donor site. Multiple potential recipent vessels were ident

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00107.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

This report presents the results of 12 adult horses with 16 sarcoids which received radiotherapy from iridium‐192 interstitial implants. Fourteen of the 16 tumors (87.5%) were in remission for at least 12 months, and 13 (81.2%) were in remission for at least 24 months. Generally, normal tissue reactions were within acceptable limits. The results of this study further substantiate the beneficial nature of radioactive brachytherapy for equine sarcol

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1991.tb00108.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY