摘要:

Using a paired crossover trial, the effects of postmyelographic removal of metrizamide injected via the cerebellomedullary cistern were studied in 16 normal dogs. Each animal received a routine and a withdrawal myelogram. Seizure activity, changes in spinal evoked motor potentials and body temperature were measured following each myelogram. The amount of metrizamide removed was determined by densitometrically analyzing radiographs of cerebrospinal fluid/metrizamide aliquots recovered during the withdrawal procedure. There was a significant decrease in the number of seizures for withdrawal versus nonwithdrawal myelography (p<0.01). The mean amount of metrizamide withdrawn per dog was 29% of the total injected.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00063.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

Thoracic radiographs from 22 neonatal foals were reviewed to investigate the radiographic appearance of the thorax in normal, immature, and septicemic foals, and in foals with neonatal respiratory distress syndrome. The size and radiographic appearance of intrathoracic structures and abnormal lung opacities were evaluated. The craniocaudal and apicobasilar dimensions of the heart were 5.6–6.3 and 6.7–7.8 times the length of a midthoracic vetebral body, respectively, in normal, immature and septicemic foals. Apicobasilar measurements were greater (8.0–8.7) in the foals with respiratory distress syndrome. Normal foals had clear lung fields within 12 hours of birth. A more marked interstitial pattern was observed in immature and septicemic foals compared to normals. Diffuse air–space (alveolar) pattern with air bronchograms was seen in foals with respiratory distress syndrome. It was concluded from this series that thoracic radiographs taken 24–48 hours after birth may aid differentiation of normal foals, septicemic or immature foals, and foals with respiratory distress

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00064.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

Sixty–nine horses having radionuclide bone scans of the foredigit region between 1985 and 1988 were retrospectively analyzed for proximal phalangeal cortical99mTc–MDP uptake. Patterns of uptake were determined and the factors of age, breed, sex, occupation, and duration of signs prior to imaging were assessed. Twenty–three horses had abnormal proximal phalangeal uptake. Two patterns of uptake were seen, either as linear, diffuse or focal, discrete, fusiform–shaped cortical uptake. The dorsal cortex was always affected in these 23 horses; the palmar cortex was affected in 14 horses, and this uptake was always linear in appearance. There was significant correlation of proximal phalangeal cortical uptake and regular jumping activity, either as a jumping, hunting or three–day event horse (p<.005). No correlations were determined between uptake and the factors of age, breed, sex or duration of signs prior to imaging. The scintigraphic appearance patterns were similar to those seen in scintigraphic studies of exercise induced traumatic bone injuries

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00065.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

Radiographic contrast studies were used in 50 forelimbs from 13 live horses and 12 fresh adult cadavers to determine the frequency of communication between the navicular bursa and the distal interphalangeal joint. Injections of contrast medium were made into the dorsal aspect of the distal interphalangeal joint of one limb and into the navicular bursa of the other forelimb of each horse. In 25 limbs in which contrast medium was injected into the distal interphalangeal joint, no communication was demonstrated between the joint and the navicular bursa. In 20 of the 25 limbs in which injection was made into the navicular bursa, no communication between joint and bursa was seen. In five horses, contrast medium was visible in both the distal interphalangeal joint and the navicular bursa. However, in four of five horses the communication was clearly iatrogenic. In both limbs of one horse, contrast medium was seen to enter the digital flexor tendon sheath after injection into the navicular bursa.There is probably no naturally occurring communication between the navicular bursa and distal interphalangeal joint in the horse.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00066.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

An 8–year–old male domestic shorthair cat with partial anorexia, occasional cough and behavior change was found to have multiple pulmonary and cerebral lesions. At necropsy a diagnosis of systemic Aspergillosis was made. This report describes the clinical, radiographic and pathologic features of systemic Aspergillosis in a

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00067.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00068.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

Eight pregnancies in five queens were followed with serial ultrasound examinations. Measurements of head and body diameter were made throughout pregnancy. These measurements were used to produce individual growth curves for each pregnancy and average curves for both head and body diameter. Formulas based on the slope of the growth curves were derived. These formulas were then used to predict parturition dates based on single measurements of fetal head and/or body diameter in eight additional queens. Predicted date of parturition was then compared to actual queening dates. Ultrasound prediction of parturition date was accurate to within two days in seven of eight queens.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00069.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00070.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

A 5–year–old cat was presented for pelvic limb weakness. Sclerosis of the vertebral body of T–10 was visible on thoracic radiographs. A compressive lesion at this area was noted on myelography. A tumor was partially removed at surgery, but the cat was killed because of poor postoperative response. Rhabdomyosarcoma was diagnosed at necropsy, with bone marrow necrosis and myelofibrosis, and new bone proliferation of the body of T–10. Causes of bone necrosis are di

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00071.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

Real–time ultrasonography was used to confirm diaphragmatic rupture in a horse that developed pleural effusion following a traumatic event. Pleural effusion, a cranially displaced crus, and a cranially positioned sacculated loop of bowel were seen radiographically. The presence of gas–filled intestine cranial and dorsal to the diaphragm was detected by ultrasound imaging. The use of ultrasound and radiography in the diagnosis of diaphragmatic rupture is discus

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1990.tb00072.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY