摘要:

In this paper an overview of principles involved in nuclear imaging is presented. Nuclear images are picotrial representations of the distribution of systemically administered radiopharmaceuticals. Although many radionuclides are available.99mTc is the most commonly used radionuclide, either in ionic form (99mTcO4) or bound to other pharmaceuticals. Distribution within the body is by physiologic processes, dependent on the radiopharmaceutical used. Most distribution processes are organ specific rather than disease specific. Scintillation detectors are used to record the activity and disribution of an administered radiopharmaceutical and to create a representative image on film. A rectilinear scanner is an imaging system with a small detector that moves systematically, point by point, over an organ of interest. A gamma (scintillation) camera is an imaging system with a large stationary detector that encompasses a larger field of view. Nuclear imaging provides information based primarily on physiologic principles, and radiography provides infromation based primarily on anatomic or geometric principles. Examples of some scanning procedures are discussed.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01538.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

A simple method for the preparation of air‐dried lung specimens is described. These specimens have proven valuable as teaching tools in anatomy, radiology, pathology, medicine, and surgery. Specimens have been made from the lungs of the cat, dog, pig, and hors

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01539.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

Agenesis of the distal phalanx of a mule foal is documented. The condition was identified when the foal was 14 days old and supported by follow‐up radiographs obtained at four months of ag

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01540.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

Normal cats and cats with congestive cardiomyopathy (CCM) and hypertrophic cardiomyopathy (HCM) were examined using M‐mode echocardiography to determine its diagnostic capabilities. Sixteen normal cats were examined to verify previously reported data and to add further echocardiographic inforamtion (left atrial/aortic root ratio, left posterior wall thickness at end systole and end diastole, amplitude of mitral valve excursions, and velocity of valve opening and closure) to aid in differential diagnosis. Significant (p<0.05) changes were detected between the normal cats and those with cardiomyopathy. In each type of cardiomyopathy, alterations in left atrial dimension, left atrial/aortic root ratio, left ventricular dimension, left ventricular wall thickness and percentage of ventricular dimensional change were identified. Altered mitral valve motion was found with HCM. Echocardiography was found to be an accurate technique for definitive diagnosis of feline cardiomyopath

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01541.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

Ultrasonography may be used to evaluate noninvasively a wide variety of diseases affecting the canine liver. Hepatic mass lesions, parenchymal pathology, gallbladder and biliary disease, and vascular abnormalities may be detected and characterized by ultrasonography. Ultrasonically guided percutaneous liver biopsy can improve the succes and safety of obtaining diagnostic cytologic material. The response of liver disorders to treatment may be effectively monitored by serial ultrasonographic examination. The ultrasonographic diagnosis of canine liver disease is described and illustrated with 11 case history reports.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01542.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

Abnormal pulmonary radiopacities were identified in 13 racing horses in which a diagnosis of exercise‐induced pulmonary hemorrhage (EIPH) had been confirmed. The lesions were in the caudal lung lobe in all horses; seven were on the right and three on the left, and the laterality for three could not be determined. In ten horses the opacities, which were large and peripherally located, obliterated the thoracophrenic angle. They merged with the silhouette of the diaphragm and had a circular or ovoid surface directed toward the hilum. The intensity of opacification of the consolidated areas varied, and they often were not sharply marginated. Dorsal displacement of the pulmonary arteries was noted in the region of the radiopacity in seven horses. Varying volumes of pleural effusion were observed in nine horses. Serial radiographic examinations were performed in seven horses. The pulmonary radiopacities cleared within ten days in two horses. In the remaining five horses, gradual resolution, characterized by a reduction in lesion size with improved margination, occurred during several months. The central region of the radiopaque lesion commonly had a patchy appearance, suggesting cavitation. Normal pulmonary vascular and interstitial markings were evident following complete resolution of these lesions. The cause of these abnormal pulmonary opacities has not been determined. Pathologic‐radiologic correlations will be required to improve understanding of the pathophysiology of EIPH in the racing ho

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01543.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

Book reviewed in this article:Techniques of Veterinary Radiography, 3rd edition, J.P.Morgan, DVM, and Sam Silverman, DVM.Radiographic Interpretation for the Small Animal Clinician.Jerry M. Owens, DVM.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01544.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1983.tb01545.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY