摘要:

Double contrast gastrography affords more accurate detection of gastric lesions because it allows direct evaluation of mucosal pattern contours. The technic involves the induction of gastric hypomotility with intravenous glucagon, gastric intubation for the introduction of air and high‐density barium directly into the stomach, and positional manipulation for maximal air‐barium interface demonstration. Some dogs require sedation. Although fluoroscopic observation is an asset in isolating gastric anatomic abnormalities, this study may be performed using conventional radiographic equipment without fluoroscopic guidance. Double contrast gastrography is used to demonstrate the stomach mucosal surface by coating it with high‐density barium and having the mucosa contrast with the air‐filled gastric lumen. There are three elements to each double contrast image: the dependent surface, the nondependent surface, and the barium pool. The barium pool is manipulated to coat the mucosal surface and fill depressions of the dependent surface. Protrusions of the dependent surface appear as radiolucencies in the barium pool. Depressions and protrusions of the nondependent surface are outlined by barium. Double contrast gastrography is indicated in dogs where clinical signs suggest anatomic changes in the gastric mucosal surface, e.g., neoplasms, ulcers, or polyps. Concurrent gastrointestinal motility evaluation is precluded by sedation and the glucagon‐induced gastric hyp

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00601.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

The thorax of nine dogs was radiographed with a vertical beam in both dorsal (VD) and ventral (DV) recumbency. The radiographs were evaluated subjectively and objectively for differences in appearance. To help explain appearance differences, lateral thoracic radiographs were made with the dogs in dorsal and ventral recumbency using a horizontally (laterally) directed x‐ray beam. The appearance of thoracic viscera in VD and DV vertical beam radiographs differed. In VD vertical beam radiographs the craniocaudal axis of the heart appeared longer, the heart had a more consistent positional relationship to the thoracic spine, a larger area of the accessory lung lobe was visible, and a greater length of the caudal vena cava was visible. In DV radiographs the caudal lobar pulmonary arteries were more easily identified. The selection of dorsal versus ventral recumbency for thoracic radiography should be based on the clinical status of the patient and the reason(s) for which the radiograph is being mad

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00602.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

A Case History presented at the I978 annual meeting of the American College of Veterinary Radiology. The case history was prepared by Dr. Norman Ackerman and presented by Dr. Thomas Millman.*

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00603.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

A Case History presented at the 1978 annual meeting of the American College of Veterinary Radiology. The case history was prepared by Dr. Normun Ackerman and presented by Dr. Charles Root.*

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00604.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

Thoracic radiographs of 40 dogs with confirmed blastomycosis were reviewed to determine the incidence of the associated radiographic signs. The predominant patterns of disease were determined in each dog and were as follows: nodular interstitial densities, 13 dogs; a mixed lung pattern not localized to any particular part of the lung, ten dogs; a bronchointerstitial pattern, five dogs; a nonspecific hazy interstitial pattern, four dogs; a mixed alveolar and interstitial density, two dogs; a cavitary lesion, one dog. The lungs appeared normal in four dogs. Concurrent findings included eight dogs with thoracic lymphadenopathy, two dogs with pneumomediastinum, and one dog with pleural effusion. None of the lesions appeared mineralized.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00605.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

The case histories of 107 dogs undergoing metrizamide myelography at two veterinary hospitals were reviewed. Twenty‐three variables, including body weight, injection site, dose of contrast medium, and medical complications during and after recovery from anesthesia, were submitted to statistical analysis by computer. Partial or generalized seizures were the most common medical complications, occurring in 54 percent of the dogs weighing more than 29 kg. Other less frequent medical complications were exacerbation of neurologic signs the day following myelography (11 percent), transient apnea during contrast medium injection (9 percent), vomiting (5 percent), hyperesthesia (3 percent), pyrexia (1 percent), and death (1 percent). The incidence of medical complications associated with metrizamide myelography in this study is higher than in previous reports. The most likely variables associated with seizures were high injection volumes and metrizamide injection at the cisterna magna. The preanesthetic administration of intramuscular pentobarbital did not significantly reduce seizure incidence. Seizures were controlled by anticonvulsant medicatio

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00606.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

Ten clinically normal adult mongrel dogs were examined using lumbosacral epidurography in an effort to determine a reproducible technic and a normal radiographic appearance. The site of contrast medium injection was the ventral epidural space at the sacrococcygeal junction or the cranial coccygeal region. An initial dose of 0.15 ml/kg of metrizamide for the right lateral recumbent radiograph with 0.10 ml/kg additional metrizamide for additional right lateral or the subsequent dorsoventral radiographs was considered adequate. Two numerical values were observed for each normal epidurogram: the sacrovertebral angle; the ratio of the contrast medium column width to L6 body length. A statistically significant relationship between hindlimb positioning and the numerical value of the sacrovertebral angle was identified. Some advantages of epidurography for delineating the lumbosacral area are obvious: (1) it overcomes the limited value of lumbosacral area myelography; (2) it is technically easier than intraosseous vertebral venography; (3) there is minimal patient trauma; (4) there was no apparent adverse sequela to repeated contrast medium injections.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00607.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00608.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00609.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1981.tb00610.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY