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Biomedical subjects

D S Herring

Publications and source records attributed to D S Herring.

10 recordsLinked to original sources
PubMed1989

Sonography of the liver, gallbladder, and spleen.

Focal hepatic and splenic lesions, vascular abnormalities, and disorders of the biliary system can readily be detected with ultrasonography. The sonographic diagnosis can be substantially narrowed when the presenting clinical signs are considered. Ultrasonography is less helpful when the liver or spleen is diffusely involved without parenchymal, abnormalities. However, certain diseases may also be eliminated from diagnostic consideration on the basis of this finding. Percutaneous ultrasound guided biopsy markedly improves the success and safety of obtaining a definitive diagnosis when either diffuse or focal lesions are present. Sonography has also been very beneficial for serially evaluating the response to therapy once focal lesions of the liver or spleen have been identified.

Animals↗
PubMed1989

Echocardiography: principles of interpretation.

Doppler echocardiography allows the serial, noninvasive collection of quantitative hemodynamic information. When coupled with the results of physical examination, thoracic radiographs, ECG, and routine cross-sectional and M-mode echocardiogram, DE helps identify the nature as well as the severity of cardiac disease. As more experience is gained with DE, more applications will be discovered and the indications for more invasive diagnostic tests including cardiac catheterization will diminish.

Animals↗
PubMed1985

Contribution of the nasal septum to the radiographic anatomy of the equine nasal cavity.

The radiopacity of the equine cartilaginous nasal septum and its covering mucosa seen on dorsoventral radiographs was determined to be of sufficient density to be useful in the diagnosis of any disorder of this anatomic structure. Radiographically, the frontal and nasal bones dorsally and the vomer and palatine process of the incisive bone ventrally do not completely obscure the nasal septum and its covering mucous membrane.

Animals↗
PubMed1985

Echocardiography. Principles of interpretation.

Echocardiography offers the clinician an opportunity to image the heart noninvasively. Both M-mode and cross-sectional echocardiography can be used to measure cardiac dilation and hypertrophy and to quantitate myocardial function. Knowledge of normal echocardiographic anatomy is essential for understanding changes that occur in disease.

Animals↗
PubMed1985

Echocardiography. Congenital heart disease.

Echocardiography can be used to identify malformations of the heart and to assess the degree of cardiac compensation that occurs with congenital heart disease. Integration of clinical and ultrasound data will generally allow a diagnosis to be made noninvasively. Contrast echocardiography may delineate intracardiac shunting.

Animals↗
PubMed1985

Echocardiography. Acquired heart disease.

Acquired disease of the cardiac valves, myocardium, and pericardium may be recognized through echocardiography. Quantitation of atrial and ventricular dimensions is a key aspect in the echocardiographic evaluation of acquired heart diseases. Subjective interpretation permits identification of pericardial effusion, dilated cardiomyopathy, valvular lesions, cardiac masses, and abnormal blood flow.

Animals↗
PubMed1985

Echocardiography.

Diagnostic ultrasound permits the clinician to image the beating heart, quantitate cardiac dimensions, identify specific congenital and acquired cardiac lesions, and estimate the degree of cardiac compensation and muscle failure that accompanies a specific lesion. The M-mode (motion) echocardiogram and two-dimensional echocardiogram are complementary studies that have proved useful for identification of cardiac septal defects, endocarditis, pericardial effusion, intracardiac shunting, cardiomegaly, and heart muscle failure. Appreciation of the technique and basic knowledge of the types of information that can be obtained from echocardiography are necessary to appropriately refer horses for these studies.

Animals↗